Merge commit 'origin/master' into next

Manual merge of:
drivers/char/hvc_console.c
drivers/char/hvc_console.h

Documentation/dontdiff

···
 bbootsect
 bin2c
 binkernel.spec
-binoffset
 bootsect
 bounds.h
 bsetup

Documentation/kernel-parameters.txt

···
 			acpi_display_output=video
 			See above.
 
+	acpi_early_pdc_eval	[HW,ACPI] Evaluate processor _PDC methods
+				early. Needed on some platforms to properly
+				initialize the EC.
+
 	acpi_irq_balance [HW,ACPI]
 			ACPI will balance active IRQs
 			default in APIC mode
···
 
 	aic79xx=	[HW,SCSI]
 			See Documentation/scsi/aic79xx.txt.
+
+	alignment=	[KNL,ARM]
+			Allow the default userspace alignment fault handler
+			behaviour to be specified.  Bit 0 enables warnings,
+			bit 1 enables fixups, and bit 2 sends a segfault.
 
 	amd_iommu=	[HW,X86-84]
 			Pass parameters to the AMD IOMMU driver in the system.

Documentation/lguest/lguest.c

···
 #include <sys/uio.h>
 #include <termios.h>
 #include <getopt.h>
-#include <zlib.h>
 #include <assert.h>
 #include <sched.h>
 #include <limits.h>

Documentation/networking/ip-sysctl.txt

···
 	Default: 5
 
 max_addresses - INTEGER
-	Number of maximum addresses per interface.  0 disables limitation.
-	It is recommended not set too large value (or 0) because it would
-	be too easy way to crash kernel to allow to create too much of
-	autoconfigured addresses.
+	Maximum number of autoconfigured addresses per interface.  Setting
+	to zero disables the limitation.  It is not recommended to set this
+	value too large (or to zero) because it would be an easy way to
+	crash the kernel by allowing too many addresses to be created.
 	Default: 16
 
 disable_ipv6 - BOOLEAN

MAINTAINERS

···
 S:	Maintained
 
 ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE
-M:	Paulius Zaleckas <[e-mail]>
+M:	Paulius Zaleckas <[e-mail]>
 L:	[e-mail] (moderated for non-subscribers)
 T:	git git://gitorious.org/linux-gemini/mainline.git
-S:	Maintained
+S:	Odd Fixes
 F:	arch/arm/mach-gemini/
 
 ARM/EBSA110 MACHINE SUPPORT
···
 F:	arch/arm/mach-pxa/ezx.c
 
 ARM/FARADAY FA526 PORT
-M:	Paulius Zaleckas <[e-mail]>
+M:	Paulius Zaleckas <[e-mail]>
 L:	[e-mail] (moderated for non-subscribers)
-S:	Maintained
+S:	Odd Fixes
 F:	arch/arm/mm/*-fa*
 
 ARM/FOOTBRIDGE ARCHITECTURE
···
 F:	net/dccp/
 
 DECnet NETWORK LAYER
-M:	Christine Caulfield <[e-mail]>
 W:	http://linux-decnet.sourceforge.net
 L:	[e-mail]
-S:	Maintained
+S:	Orphan
 F:	Documentation/networking/decnet.txt
 F:	net/decnet/
 
···
 L:	[e-mail]
 S:	Odd Fixes
 F:	drivers/char/hvc_*
+
+VIRTIO CONSOLE DRIVER
+M:	Amit Shah <[e-mail]>
+L:	[e-mail]
+S:	Maintained
+F:	drivers/char/virtio_console.c
 
 GSPCA FINEPIX SUBDRIVER
 M:	Frank Zago <[e-mail]>
···
 F:	drivers/net/wireless/libertas/
 
 MARVELL MV643XX ETHERNET DRIVER
-M:	Lennert Buytenhek <[e-mail]>
+M:	Lennert Buytenhek <[e-mail]>
 L:	[e-mail]
-S:	Supported
+S:	Maintained
 F:	drivers/net/mv643xx_eth.*
 F:	include/linux/mv643xx.h
 

Makefile

···
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 33
-EXTRAVERSION = -rc8
+EXTRAVERSION =
 NAME = Man-Eating Seals of Antiquity
 
 # *DOCUMENTATION*

arch/arm/include/asm/cacheflush.h

···
 #endif
 
 #if defined(CONFIG_CPU_ARM920T) || defined(CONFIG_CPU_ARM922T) || \
-    defined(CONFIG_CPU_ARM925T) || defined(CONFIG_CPU_ARM1020)
+    defined(CONFIG_CPU_ARM925T) || defined(CONFIG_CPU_ARM1020) || \
+    defined(CONFIG_CPU_ARM1026)
 # define MULTI_CACHE 1
 #endif
 

arch/arm/kernel/setup.c

···
 #endif
 #ifdef CONFIG_OUTER_CACHE
 struct outer_cache_fns outer_cache;
+EXPORT_SYMBOL(outer_cache);
 #endif
 
 struct stack {

arch/arm/mach-gemini/gpio.c

···
 	unsigned int reg_both, reg_level, reg_type;
 
 	reg_type = __raw_readl(base + GPIO_INT_TYPE);
-	reg_level = __raw_readl(base + GPIO_INT_BOTH_EDGE);
+	reg_level = __raw_readl(base + GPIO_INT_LEVEL);
 	reg_both = __raw_readl(base + GPIO_INT_BOTH_EDGE);
 
 	switch (type) {
···
 	}
 
 	__raw_writel(reg_type, base + GPIO_INT_TYPE);
-	__raw_writel(reg_level, base + GPIO_INT_BOTH_EDGE);
+	__raw_writel(reg_level, base + GPIO_INT_LEVEL);
 	__raw_writel(reg_both, base + GPIO_INT_BOTH_EDGE);
 
 	gpio_ack_irq(irq);

arch/arm/mach-omap2/mux.c

···
 	while (superset->reg_offset !=  OMAP_MUX_TERMINATOR) {
 		struct omap_mux *entry;
 
-#ifndef CONFIG_OMAP_MUX
-		/* Skip pins that are not muxed as GPIO by bootloader */
-		if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
+#ifdef CONFIG_OMAP_MUX
+		if (!superset->muxnames || !superset->muxnames[0]) {
 			superset++;
 			continue;
 		}
-#endif
-
-#if defined(CONFIG_OMAP_MUX) && defined(CONFIG_DEBUG_FS)
-		if (!superset->muxnames || !superset->muxnames[0]) {
+#else
+		/* Skip pins that are not muxed as GPIO by bootloader */
+		if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
 			superset++;
 			continue;
 		}

arch/arm/mm/alignment.c

···
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/moduleparam.h>
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
···
 static unsigned long ai_dword;
 static unsigned long ai_multi;
 static int ai_usermode;
+
+core_param(alignment, ai_usermode, int, 0600);
 
 #define UM_WARN		(1 << 0)
 #define UM_FIXUP	(1 << 1)

arch/arm/tools/mach-types

···
 #
 #   http://www.arm.linux.org.uk/developer/machines/?action=new
 #
-# Last update: Thu Jan 28 22:15:54 2010
+# Last update: Sat Feb 20 14:16:15 2010
 #
 # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
 #
···
 oratismadi		MACH_ORATISMADI		ORATISMADI		2269
 oratisot16		MACH_ORATISOT16		ORATISOT16		2270
 oratisdesk		MACH_ORATISDESK		ORATISDESK		2271
-v2_ca9			MACH_V2P_CA9		V2P_CA9			2272
+vexpress		MACH_VEXPRESS		VEXPRESS		2272
 sintexo			MACH_SINTEXO		SINTEXO			2273
 cm3389			MACH_CM3389		CM3389			2274
 omap3_cio		MACH_OMAP3_CIO		OMAP3_CIO		2275
···
 dm365_leopard		MACH_DM365_LEOPARD	DM365_LEOPARD		2649
 mityomapl138		MACH_MITYOMAPL138	MITYOMAPL138		2650
 scat110			MACH_SCAT110		SCAT110			2651
+acer_a1			MACH_ACER_A1		ACER_A1			2652
+cmcontrol		MACH_CMCONTROL		CMCONTROL		2653
+pelco_lamar		MACH_PELCO_LAMAR	PELCO_LAMAR		2654
+rfp43			MACH_RFP43		RFP43			2655
+sk86r0301		MACH_SK86R0301		SK86R0301		2656
+ctpxa			MACH_CTPXA		CTPXA			2657
+epb_arm9_a		MACH_EPB_ARM9_A		EPB_ARM9_A		2658
+guruplug		MACH_GURUPLUG		GURUPLUG		2659
+spear310		MACH_SPEAR310		SPEAR310		2660
+spear320		MACH_SPEAR320		SPEAR320		2661
+robotx			MACH_ROBOTX		ROBOTX			2662
+lsxhl			MACH_LSXHL		LSXHL			2663
+smartlite		MACH_SMARTLITE		SMARTLITE		2664
+cws2			MACH_CWS2		CWS2			2665
+m619			MACH_M619		M619			2666
+smartview		MACH_SMARTVIEW		SMARTVIEW		2667
+lsa_salsa		MACH_LSA_SALSA		LSA_SALSA		2668
+kizbox			MACH_KIZBOX		KIZBOX			2669
+htccharmer		MACH_HTCCHARMER		HTCCHARMER		2670
+guf_neso_lt		MACH_GUF_NESO_LT	GUF_NESO_LT		2671
+pm9g45			MACH_PM9G45		PM9G45			2672
+htcpanther		MACH_HTCPANTHER		HTCPANTHER		2673
+htcpanther_cdma		MACH_HTCPANTHER_CDMA	HTCPANTHER_CDMA		2674
+reb01			MACH_REB01		REB01			2675
+aquila			MACH_AQUILA		AQUILA			2676
+spark_sls_hw2		MACH_SPARK_SLS_HW2	SPARK_SLS_HW2		2677
+sheeva_esata		MACH_ESATA_SHEEVAPLUG	ESATA_SHEEVAPLUG	2678
+surf7x30		MACH_SURF7X30		SURF7X30		2679
+micro2440		MACH_MICRO2440		MICRO2440		2680
+am2440			MACH_AM2440		AM2440			2681
+tq2440			MACH_TQ2440		TQ2440			2682
+lpc2478oem		MACH_LPC2478OEM		LPC2478OEM		2683
+ak880x			MACH_AK880X		AK880X			2684
+cobra3530		MACH_COBRA3530		COBRA3530		2685
+pmppb			MACH_PMPPB		PMPPB			2686
+u6715			MACH_U6715		U6715			2687
+axar1500_sender		MACH_AXAR1500_SENDER	AXAR1500_SENDER		2688
+g30_dvb			MACH_G30_DVB		G30_DVB			2689
+vc088x			MACH_VC088X		VC088X			2690
+mioa702			MACH_MIOA702		MIOA702			2691
+hpmin			MACH_HPMIN		HPMIN			2692
+ak880xak		MACH_AK880XAK		AK880XAK		2693

arch/ia64/include/asm/acpi.h

···
 #define acpi_noirq 0	/* ACPI always enabled on IA64 */
 #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
 #define acpi_strict 1	/* no ACPI spec workarounds on IA64 */
+#define acpi_ht 0	/* no HT-only mode on IA64 */
 #endif
 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
 static inline void disable_acpi(void) { }

arch/ia64/sn/kernel/setup.c

···
 DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
 EXPORT_PER_CPU_SYMBOL(__sn_hub_info);
 
-DEFINE_PER_CPU(short [MAX_COMPACT_NODES], __sn_cnodeid_to_nasid);
+DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);
 EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);
 
 DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda);

arch/microblaze/Kconfig

···
 
 config OF
 	def_bool y
+	select OF_FLATTREE
 
 config PROC_DEVICETREE
 	bool "Support for device tree in /proc"

arch/microblaze/include/asm/io.h

···
  * Little endian
  */
 
-#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a));
+#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a))
 #define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
 
 #define in_le32(a) __le32_to_cpu(__raw_readl(a))

arch/microblaze/include/asm/prom.h

···
 #include <asm/irq.h>
 #include <asm/atomic.h>
 
-#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT	1
-#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT	1
-
-#define of_compat_cmp(s1, s2, l)	strncasecmp((s1), (s2), (l))
-#define of_prop_cmp(s1, s2)		strcmp((s1), (s2))
-#define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
-
-extern struct device_node *of_chosen;
-
 #define HAVE_ARCH_DEVTREE_FIXUPS
-
-extern struct device_node *allnodes;	/* temporary while merging */
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
-/* For updating the device tree at runtime */
-extern void of_attach_node(struct device_node *);
-extern void of_detach_node(struct device_node *);
 
 /* Other Prototypes */
 extern int early_uartlite_console(void);
-
-extern struct resource *request_OF_resource(struct device_node *node,
-				int index, const char *name_postfix);
-extern int release_OF_resource(struct device_node *node, int index);
 
 /*
  * OF address retreival & translation

arch/microblaze/kernel/cpu/cache.c

···
 /* It is used only first parameter for OP - for wic, wdc */
 #define CACHE_RANGE_LOOP_1(start, end, line_length, op)			\
 do {									\
-	int step = -line_length;					\
-	int count = end - start;					\
-	BUG_ON(count <= 0);						\
+	int volatile temp;						\
+	BUG_ON(end - start <= 0);					\
 									\
-	__asm__ __volatile__ (" 1:	addk	%0, %0, %1;		\
-					" #op " %0, r0;			\
-					bgtid   %1, 1b;			\
-					addk    %1, %1, %2;		\
-					" : : "r" (start), "r" (count),	\
-					"r" (step) : "memory");		\
+	__asm__ __volatile__ (" 1:	" #op " %1, r0;			\
+					cmpu	%0, %1, %2;		\
+					bgtid	%0, 1b;			\
+					addk	%1, %1, %3;		\
+				" : : "r" (temp), "r" (start), "r" (end),\
+					"r" (line_length) : "memory");	\
 } while (0);
 
 static void __flush_icache_range_msr_irq(unsigned long start, unsigned long end)
···
 	pr_debug("%s\n", __func__);
 	CACHE_ALL_LOOP2(cpuinfo.dcache_size, cpuinfo.dcache_line_length,
 					wdc.clear)
-
-#if 0
-	unsigned int i;
-
-	pr_debug("%s\n", __func__);
-
-	/* Just loop through cache size and invalidate it */
-	for (i = 0; i < cpuinfo.dcache_size; i += cpuinfo.dcache_line_length)
-			__invalidate_dcache(0, i);
-#endif
 }
 
 static void __invalidate_dcache_range_wb(unsigned long start,

arch/microblaze/kernel/of_platform.c

···
 static int of_dev_phandle_match(struct device *dev, void *data)
 {
 	phandle *ph = data;
-	return to_of_device(dev)->node->linux_phandle == *ph;
+	return to_of_device(dev)->node->phandle == *ph;
 }
 
 struct of_device *of_find_device_by_phandle(phandle ph)

arch/microblaze/kernel/prom.c

···
 #include <asm/sections.h>
 #include <asm/pci-bridge.h>
 
-static int __initdata dt_root_addr_cells;
-static int __initdata dt_root_size_cells;
-
-typedef u32 cell_t;
-
-static struct boot_param_header *initial_boot_params;
-
-/* export that to outside world */
-struct device_node *of_chosen;
-
-static inline char *find_flat_dt_string(u32 offset)
+void __init early_init_dt_scan_chosen_arch(unsigned long node)
 {
-	return ((char *)initial_boot_params) +
-		initial_boot_params->off_dt_strings + offset;
+	/* No Microblaze specific code here */
 }
 
-/**
- * This function is used to scan the flattened device-tree, it is
- * used to extract the memory informations at boot before we can
- * unflatten the tree
- */
-int __init of_scan_flat_dt(int (*it)(unsigned long node,
-				     const char *uname, int depth,
-				     void *data),
-			   void *data)
+void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	int rc = 0;
-	int depth = -1;
-
-	do {
-		u32 tag = *((u32 *)p);
-		char *pathp;
-
-		p += 4;
-		if (tag == OF_DT_END_NODE) {
-			depth--;
-			continue;
-		}
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag == OF_DT_END)
-			break;
-		if (tag == OF_DT_PROP) {
-			u32 sz = *((u32 *)p);
-			p += 8;
-			if (initial_boot_params->version < 0x10)
-				p = _ALIGN(p, sz >= 8 ? 8 : 4);
-			p += sz;
-			p = _ALIGN(p, 4);
-			continue;
-		}
-		if (tag != OF_DT_BEGIN_NODE) {
-			printk(KERN_WARNING "Invalid tag %x scanning flattened"
-				" device tree !\n", tag);
-			return -EINVAL;
-		}
-		depth++;
-		pathp = (char *)p;
-		p = _ALIGN(p + strlen(pathp) + 1, 4);
-		if ((*pathp) == '/') {
-			char *lp, *np;
-			for (lp = NULL, np = pathp; *np; np++)
-				if ((*np) == '/')
-					lp = np+1;
-			if (lp != NULL)
-				pathp = lp;
-		}
-		rc = it(p, pathp, depth, data);
-		if (rc != 0)
-			break;
-	} while (1);
-
-	return rc;
+	lmb_add(base, size);
 }
 
-unsigned long __init of_get_flat_dt_root(void)
+u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 {
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-
-	while (*((u32 *)p) == OF_DT_NOP)
-		p += 4;
-	BUG_ON(*((u32 *)p) != OF_DT_BEGIN_NODE);
-	p += 4;
-	return _ALIGN(p + strlen((char *)p) + 1, 4);
+	return lmb_alloc(size, align);
 }
-
-/**
- * This function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
-				unsigned long *size)
-{
-	unsigned long p = node;
-
-	do {
-		u32 tag = *((u32 *)p);
-		u32 sz, noff;
-		const char *nstr;
-
-		p += 4;
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag != OF_DT_PROP)
-			return NULL;
-
-		sz = *((u32 *)p);
-		noff = *((u32 *)(p + 4));
-		p += 8;
-		if (initial_boot_params->version < 0x10)
-			p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-		nstr = find_flat_dt_string(noff);
-		if (nstr == NULL) {
-			printk(KERN_WARNING "Can't find property index"
-				" name !\n");
-			return NULL;
-		}
-		if (strcmp(name, nstr) == 0) {
-			if (size)
-				*size = sz;
-			return (void *)p;
-		}
-		p += sz;
-		p = _ALIGN(p, 4);
-	} while (1);
-}
-
-int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
-{
-	const char *cp;
-	unsigned long cplen, l;
-
-	cp = of_get_flat_dt_prop(node, "compatible", &cplen);
-	if (cp == NULL)
-		return 0;
-	while (cplen > 0) {
-		if (strncasecmp(cp, compat, strlen(compat)) == 0)
-			return 1;
-		l = strlen(cp) + 1;
-		cp += l;
-		cplen -= l;
-	}
-
-	return 0;
-}
-
-static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
-					unsigned long align)
-{
-	void *res;
-
-	*mem = _ALIGN(*mem, align);
-	res = (void *)*mem;
-	*mem += size;
-
-	return res;
-}
-
-static unsigned long __init unflatten_dt_node(unsigned long mem,
-					unsigned long *p,
-					struct device_node *dad,
-					struct device_node ***allnextpp,
-					unsigned long fpsize)
-{
-	struct device_node *np;
-	struct property *pp, **prev_pp = NULL;
-	char *pathp;
-	u32 tag;
-	unsigned int l, allocl;
-	int has_name = 0;
-	int new_format = 0;
-
-	tag = *((u32 *)(*p));
-	if (tag != OF_DT_BEGIN_NODE) {
-		printk("Weird tag at start of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	pathp = (char *)*p;
-	l = allocl = strlen(pathp) + 1;
-	*p = _ALIGN(*p + l, 4);
-
-	/* version 0x10 has a more compact unit name here instead of the full
-	 * path. we accumulate the full path size using "fpsize", we'll rebuild
-	 * it later. We detect this because the first character of the name is
-	 * not '/'.
-	 */
-	if ((*pathp) != '/') {
-		new_format = 1;
-		if (fpsize == 0) {
-			/* root node: special case. fpsize accounts for path
-			 * plus terminating zero. root node only has '/', so
-			 * fpsize should be 2, but we want to avoid the first
-			 * level nodes to have two '/' so we use fpsize 1 here
-			 */
-			fpsize = 1;
-			allocl = 2;
-		} else {
-			/* account for '/' and path size minus terminal 0
-			 * already in 'l'
-			 */
-			fpsize += l;
-			allocl = fpsize;
-		}
-	}
-
-	np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
-				__alignof__(struct device_node));
-	if (allnextpp) {
-		memset(np, 0, sizeof(*np));
-		np->full_name = ((char *)np) + sizeof(struct device_node);
-		if (new_format) {
-			char *p2 = np->full_name;
-			/* rebuild full path for new format */
-			if (dad && dad->parent) {
-				strcpy(p2, dad->full_name);
-#ifdef DEBUG
-				if ((strlen(p2) + l + 1) != allocl) {
-					pr_debug("%s: p: %d, l: %d, a: %d\n",
-						pathp, (int)strlen(p2),
-						l, allocl);
-				}
-#endif
-				p2 += strlen(p2);
-			}
-			*(p2++) = '/';
-			memcpy(p2, pathp, l);
-		} else
-			memcpy(np->full_name, pathp, l);
-		prev_pp = &np->properties;
-		**allnextpp = np;
-		*allnextpp = &np->allnext;
-		if (dad != NULL) {
-			np->parent = dad;
-			/* we temporarily use the next field as `last_child'*/
-			if (dad->next == NULL)
-				dad->child = np;
-			else
-				dad->next->sibling = np;
-			dad->next = np;
-		}
-		kref_init(&np->kref);
-	}
-	while (1) {
-		u32 sz, noff;
-		char *pname;
-
-		tag = *((u32 *)(*p));
-		if (tag == OF_DT_NOP) {
-			*p += 4;
-			continue;
-		}
-		if (tag != OF_DT_PROP)
-			break;
-		*p += 4;
-		sz = *((u32 *)(*p));
-		noff = *((u32 *)((*p) + 4));
-		*p += 8;
-		if (initial_boot_params->version < 0x10)
-			*p = _ALIGN(*p, sz >= 8 ? 8 : 4);
-
-		pname = find_flat_dt_string(noff);
-		if (pname == NULL) {
-			printk(KERN_INFO
-				"Can't find property name in list !\n");
-			break;
-		}
-		if (strcmp(pname, "name") == 0)
-			has_name = 1;
-		l = strlen(pname) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property),
-					__alignof__(struct property));
-		if (allnextpp) {
-			if (strcmp(pname, "linux,phandle") == 0) {
-				np->node = *((u32 *)*p);
-				if (np->linux_phandle == 0)
-					np->linux_phandle = np->node;
-			}
-			if (strcmp(pname, "ibm,phandle") == 0)
-				np->linux_phandle = *((u32 *)*p);
-			pp->name = pname;
-			pp->length = sz;
-			pp->value = (void *)*p;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-		}
-		*p = _ALIGN((*p) + sz, 4);
-	}
-	/* with version 0x10 we may not have the name property, recreate
-	 * it here from the unit name if absent
-	 */
-	if (!has_name) {
-		char *p1 = pathp, *ps = pathp, *pa = NULL;
-		int sz;
-
-		while (*p1) {
-			if ((*p1) == '@')
-				pa = p1;
-			if ((*p1) == '/')
-				ps = p1 + 1;
-			p1++;
-		}
-		if (pa < ps)
-			pa = p1;
-		sz = (pa - ps) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
-					__alignof__(struct property));
-		if (allnextpp) {
-			pp->name = "name";
-			pp->length = sz;
-			pp->value = pp + 1;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-			memcpy(pp->value, ps, sz - 1);
-			((char *)pp->value)[sz - 1] = 0;
-			pr_debug("fixed up name for %s -> %s\n", pathp,
-				(char *)pp->value);
-		}
-	}
-	if (allnextpp) {
-		*prev_pp = NULL;
-		np->name = of_get_property(np, "name", NULL);
-		np->type = of_get_property(np, "device_type", NULL);
-
-		if (!np->name)
-			np->name = "<NULL>";
-		if (!np->type)
-			np->type = "<NULL>";
-	}
-	while (tag == OF_DT_BEGIN_NODE) {
-		mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
-		tag = *((u32 *)(*p));
-	}
-	if (tag != OF_DT_END_NODE) {
-		printk(KERN_INFO "Weird tag at end of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	return mem;
-}
-
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-	unsigned long start, mem, size;
-	struct device_node **allnextp = &allnodes;
-
-	pr_debug(" -> unflatten_device_tree()\n");
-
-	/* First pass, scan for size */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-	size = (size | 3) + 1;
-
-	pr_debug("  size is %lx, allocating...\n", size);
-
-	/* Allocate memory for the expanded device tree */
-	mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-	mem = (unsigned long) __va(mem);
-
-	((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-	pr_debug("  unflattening %lx...\n", mem);
-
-	/* Second pass, do actual unflattening */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-	if (*((u32 *)start) != OF_DT_END)
-		printk(KERN_WARNING "Weird tag at end of tree: %08x\n",
-			*((u32 *)start));
-	if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-		printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-			((u32 *)mem)[size / 4]);
-	*allnextp = NULL;
-
-	/* Get pointer to OF "/chosen" node for use everywhere */
-	of_chosen = of_find_node_by_path("/chosen");
-	if (of_chosen == NULL)
-		of_chosen = of_find_node_by_path("/chosen@0");
-
-	pr_debug(" <- unflatten_device_tree()\n");
-}
-
-#define early_init_dt_scan_drconf_memory(node) 0
-
-static int __init early_init_dt_scan_cpus(unsigned long node,
-					  const char *uname, int depth,
-					  void *data)
-{
-	static int logical_cpuid;
-	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	const u32 *intserv;
-	int i, nthreads;
-	int found = 0;
-
-	/* We are scanning "cpu" nodes only */
-	if (type == NULL || strcmp(type, "cpu") != 0)
-		return 0;
-
-	/* Get physical cpuid */
-	intserv = of_get_flat_dt_prop(node, "reg", NULL);
-	nthreads = 1;
-
-	/*
-	 * Now see if any of these threads match our boot cpu.
-	 * NOTE: This must match the parsing done in smp_setup_cpu_maps.
-	 */
-	for (i = 0; i < nthreads; i++) {
-		/*
-		 * version 2 of the kexec param format adds the phys cpuid of
-		 * booted proc.
-		 */
-		if (initial_boot_params && initial_boot_params->version >= 2) {
-			if (intserv[i] ==
-					initial_boot_params->boot_cpuid_phys) {
-				found = 1;
-				break;
-			}
-		} else {
-			/*
-			 * Check if it's the boot-cpu, set it's hw index now,
-			 * unfortunately this format did not support booting
-			 * off secondary threads.
-			 */
-			if (of_get_flat_dt_prop(node,
-					"linux,boot-cpu", NULL) != NULL) {
-				found = 1;
-				break;
-			}
-		}
-
-#ifdef CONFIG_SMP
-		/* logical cpu id is always 0 on UP kernels */
-		logical_cpuid++;
-#endif
-	}
-
-	if (found) {
-		pr_debug("boot cpu: logical %d physical %d\n", logical_cpuid,
-			intserv[i]);
-		boot_cpuid = logical_cpuid;
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-static void __init early_init_dt_check_for_initrd(unsigned long node)
-{
-	unsigned long l;
-	u32 *prop;
-
-	pr_debug("Looking for initrd properties... ");
-
-	prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
-	if (prop) {
-		initrd_start = (unsigned long)
-					__va((u32)of_read_ulong(prop, l/4));
-
-		prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
-		if (prop) {
-			initrd_end = (unsigned long)
-					__va((u32)of_read_ulong(prop, 1/4));
-			initrd_below_start_ok = 1;
-		} else {
-			initrd_start = 0;
-		}
-	}
-
-	pr_debug("initrd_start=0x%lx  initrd_end=0x%lx\n",
-					initrd_start, initrd_end);
-}
-#else
-static inline void early_init_dt_check_for_initrd(unsigned long node)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-static int __init early_init_dt_scan_chosen(unsigned long node,
-				const char *uname, int depth, void *data)
-{
-	unsigned long l;
-	char *p;
-
-	pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
-
-	if (depth != 1 ||
-		(strcmp(uname, "chosen") != 0 &&
-				strcmp(uname, "chosen@0") != 0))
-		return 0;
-
-#ifdef CONFIG_KEXEC
-	lprop = (u64 *)of_get_flat_dt_prop(node,
-				"linux,crashkernel-base", NULL);
-	if (lprop)
-		crashk_res.start = *lprop;
-
-	lprop = (u64 *)of_get_flat_dt_prop(node,
-				"linux,crashkernel-size", NULL);
-	if (lprop)
-		crashk_res.end = crashk_res.start + *lprop - 1;
-#endif
-
-	early_init_dt_check_for_initrd(node);
-
-	/* Retreive command line */
-	p = of_get_flat_dt_prop(node, "bootargs", &l);
-	if (p != NULL && l > 0)
-		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
-
-#ifdef CONFIG_CMDLINE
-#ifndef CONFIG_CMDLINE_FORCE
-	if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
-#endif
-		strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif /* CONFIG_CMDLINE */
-
-	pr_debug("Command line is: %s\n", cmd_line);
-
-	/* break now */
-	return 1;
-}
-
-static int __init early_init_dt_scan_root(unsigned long node,
-				const char *uname, int depth, void *data)
-{
-	u32 *prop;
-
-	if (depth != 0)
-		return 0;
-
-	prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
-	dt_root_size_cells = (prop == NULL) ? 1 : *prop;
-	pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
-
-	prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
-	dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
-	pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
-
-	/* break now */
-	return 1;
-}
-
-static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
-{
-	cell_t *p = *cellp;
-
-	*cellp = p + s;
-	return of_read_number(p, s);
-}
-
-static int __init early_init_dt_scan_memory(unsigned long node,
-				const char *uname, int depth, void *data)
-{
-	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	cell_t *reg, *endp;
-	unsigned long l;
-
-	/* Look for the ibm,dynamic-reconfiguration-memory node */
-/*	if (depth == 1 &&
-		strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
-		return early_init_dt_scan_drconf_memory(node);
-*/
-	/* We are scanning "memory" nodes only */
-	if (type == NULL) {
-		/*
-		 * The longtrail doesn't have a device_type on the
-		 * /memory node, so look for the node called /memory@0.
-		 */
-		if (depth != 1 || strcmp(uname, "memory@0") != 0)
-			return 0;
-	} else if (strcmp(type, "memory") != 0)
-		return 0;
-
-	reg = (cell_t *)of_get_flat_dt_prop(node, "linux,usable-memory", &l);
-	if (reg == NULL)
-		reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
-	if (reg == NULL)
-		return 0;
-
-	endp = reg + (l / sizeof(cell_t));
-
-	pr_debug("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
-		uname, l, reg[0], reg[1], reg[2], reg[3]);
-
-	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
-		u64 base, size;
-
-		base = dt_mem_next_cell(dt_root_addr_cells, &reg);
-		size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-		if (size == 0)
-			continue;
-		pr_debug(" - %llx ,  %llx\n", (unsigned long long)base,
-			(unsigned long long)size);
-
-		lmb_add(base, size);
-	}
-	return 0;
-}
-
-#ifdef CONFIG_PHYP_DUMP
-/**
- * phyp_dump_calculate_reserve_size() - reserve variable boot area 5% or arg
- *
- * Function to find the largest size we need to reserve
- * during early boot process.
- *
- * It either looks for boot param and returns that OR
- * returns larger of 256 or 5% rounded down to multiples of 256MB.
- *
- */
-static inline unsigned long phyp_dump_calculate_reserve_size(void)
-{
-	unsigned long tmp;
-
-	if (phyp_dump_info->reserve_bootvar)
-		return phyp_dump_info->reserve_bootvar;
-
-	/* divide by 20 to get 5% of value */
-	tmp = lmb_end_of_DRAM();
-	do_div(tmp, 20);
-
-	/* round it down in multiples of 256 */
-	tmp = tmp & ~0x0FFFFFFFUL;
-
-	return (tmp > PHYP_DUMP_RMR_END ? tmp : PHYP_DUMP_RMR_END);
-}
-
-/**
- * phyp_dump_reserve_mem() - reserve all not-yet-dumped mmemory
- *
- * This routine may reserve memory regions in the kernel only
- * if the system is supported and a dump was taken in last
- * boot instance or if the hardware is supported and the
- * scratch area needs to be setup. In other instances it returns
- * without reserving anything. The memory in case of dump being
- * active is freed when the dump is collected (by userland tools).
- */
-static void __init phyp_dump_reserve_mem(void)
-{
-	unsigned long base, size;
-	unsigned long variable_reserve_size;
-
-	if (!phyp_dump_info->phyp_dump_configured) {
-		printk(KERN_ERR "Phyp-dump not supported on this hardware\n");
-		return;
-	}
-
-	if (!phyp_dump_info->phyp_dump_at_boot) {
-		printk(KERN_INFO "Phyp-dump disabled at boot time\n");
-		return;
-	}
-
-	variable_reserve_size = phyp_dump_calculate_reserve_size();
-
-	if (phyp_dump_info->phyp_dump_is_active) {
-		/* Reserve *everything* above RMR.Area freed by userland tools*/
-		base = variable_reserve_size;
-		size = lmb_end_of_DRAM() - base;
-
-		/* XXX crashed_ram_end is wrong, since it may be beyond
-		 * the memory_limit, it will need to be adjusted. */
-		lmb_reserve(base, size);
-
-		phyp_dump_info->init_reserve_start = base;
-		phyp_dump_info->init_reserve_size = size;
-	} else {
-		size = phyp_dump_info->cpu_state_size +
-			phyp_dump_info->hpte_region_size +
-			variable_reserve_size;
-		base = lmb_end_of_DRAM() - size;
-		lmb_reserve(base, size);
-		phyp_dump_info->init_reserve_start = base;
-		phyp_dump_info->init_reserve_size = size;
-	}
-}
-#else
-static inline void __init phyp_dump_reserve_mem(void) {}
-#endif /* CONFIG_PHYP_DUMP  && CONFIG_PPC_RTAS */
 
 #ifdef CONFIG_EARLY_PRINTK
 /* MS this is Microblaze specifig function */
···
 	/* Setup flat device-tree pointer */
 	initial_boot_params = params;
 
-#ifdef CONFIG_PHYP_DUMP
-	/* scan tree to see if dump occured during last boot */
-	of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
-#endif
-
 	/* Retrieve various informations from the /chosen node of the
 	 * device-tree, including the platform type, initrd location and
 	 * size, TCE reserve, and more ...
···
 
 	pr_debug("Phys. mem: %lx\n", (unsigned long) lmb_phys_mem_size());
 
-	pr_debug("Scanning CPUs ...\n");
-
-	/* Retreive CPU related informations from the flat tree
-	 * (altivec support, boot CPU ID, ...)
-	 */
-	of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
-
 	pr_debug(" <- early_init_devtree()\n");
 }
 
-/**
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int machine_is_compatible(const char *compat)
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init early_init_dt_setup_initrd_arch(unsigned long start,
+		unsigned long end)
 {
-	struct device_node *root;
-	int rc = 0;
-
-	root = of_find_node_by_path("/");
-	if (root) {
-		rc = of_device_is_compatible(root, compat);
-		of_node_put(root);
-	}
-	return rc;
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
 }
-EXPORT_SYMBOL(machine_is_compatible);
+#endif
 
 /*******
  *
···
  * this isn't dealt with yet.
  *
  *******/
-
-/**
- *	of_find_node_by_phandle - Find a node given a phandle
- *	@handle:	phandle of the node to find
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-	struct device_node *np;
-
-	read_lock(&devtree_lock);
-	for (np = allnodes; np != NULL; np = np->allnext)
-		if (np->linux_phandle == handle)
-			break;
-	of_node_get(np);
-	read_unlock(&devtree_lock);
-	return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
-/**
- *	of_node_get - Increment refcount of a node
- *	@node:	Node to inc refcount, NULL is supported to
- *		simplify writing of callers
- *
- *	Returns node.
- */
-struct device_node *of_node_get(struct device_node *node)
-{
-	if (node)
-		kref_get(&node->kref);
-	return node;
-}
-EXPORT_SYMBOL(of_node_get);
-
-static inline struct device_node *kref_to_device_node(struct kref *kref)
-{
-	return container_of(kref, struct device_node, kref);
-}
-
-/**
- *	of_node_release - release a dynamically allocated node
- *	@kref:  kref element of the node to be released
- *
- *	In of_node_put() this function is passed to kref_put()
- *	as the destructor.
- */
-static void of_node_release(struct kref *kref)
-{
-	struct device_node *node = kref_to_device_node(kref);
-	struct property *prop = node->properties;
-
-	/* We should never be releasing nodes that haven't been detached. */
-	if (!of_node_check_flag(node, OF_DETACHED)) {
-		printk(KERN_INFO "WARNING: Bad of_node_put() on %s\n",
-			node->full_name);
-		dump_stack();
-		kref_init(&node->kref);
-		return;
-	}
-
-	if (!of_node_check_flag(node, OF_DYNAMIC))
-		return;
-
-	while (prop) {
-		struct property *next = prop->next;
-		kfree(prop->name);
-		kfree(prop->value);
-		kfree(prop);
-		prop = next;
-
-		if (!prop) {
-			prop = node->deadprops;
-			node->deadprops = NULL;
-		}
-	}
-	kfree(node->full_name);
-	kfree(node->data);
-	kfree(node);
-}
-
-/**
- *	of_node_put - Decrement refcount of a node
- *	@node:	Node to dec refcount, NULL is supported to
- *		simplify writing of callers
- *
- */
-void of_node_put(struct device_node *node)
-{
-	if (node)
-		kref_put(&node->kref, of_node_release);
-}
-EXPORT_SYMBOL(of_node_put);
-
-/*
- * Plug a device node into the tree and global list.
- */
-void of_attach_node(struct device_node *np)
-{
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	np->sibling = np->parent->child;
-	np->allnext = allnodes;
-	np->parent->child = np;
-	allnodes = np;
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
-/*
- * "Unplug" a node from the device tree.  The caller must hold
- * a reference to the node.  The memory associated with the node
- * is not freed until its refcount goes to zero.
- */
-void of_detach_node(struct device_node *np)
-{
-	struct device_node *parent;
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-
-	parent = np->parent;
-	if (!parent)
-		goto out_unlock;
-
-	if (allnodes == np)
-		allnodes = np->allnext;
-	else {
-		struct device_node *prev;
-		for (prev = allnodes;
-		     prev->allnext != np;
-		     prev = prev->allnext)
-			;
-		prev->allnext = np->allnext;
-	}
-
-	if (parent->child == np)
-		parent->child = np->sibling;
-	else {
-		struct device_node *prevsib;
-		for (prevsib = np->parent->child;
-		     prevsib->sibling != np;
-		     prevsib = prevsib->sibling)
-			;
-		prevsib->sibling = np->sibling;
-	}
-
-	of_node_set_flag(np, OF_DETACHED);
-
-out_unlock:
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
-/*
- * Add a property to a node
- */
-int prom_add_property(struct device_node *np, struct property *prop)
-{
-	struct property **next;
-	unsigned long flags;
-
-	prop->next = NULL;
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (strcmp(prop->name, (*next)->name) == 0) {
-			/* duplicate ! don't insert it */
-			write_unlock_irqrestore(&devtree_lock, flags);
-			return -1;
-		}
-		next = &(*next)->next;
-	}
-	*next = prop;
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_add_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Remove a property from a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, so it won't be found any more.
- */
-int prom_remove_property(struct device_node *np, struct property *prop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == prop) {
-			/* found the node */
-			*next = prop->next;
-			prop->next = np->deadprops;
-			np->deadprops = prop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to remove the proc node as well */
-	if (np->pde)
-		proc_device_tree_remove_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Update a property in a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, and add the new property to the
- * property list
- */
-int prom_update_property(struct device_node *np,
-			 struct property *newprop,
-			 struct property *oldprop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == oldprop) {
-			/* found the node */
-			newprop->next = oldprop->next;
-			*next = newprop;
-			oldprop->next = np->deadprops;
-			np->deadprops = oldprop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_update_prop(np->pde, newprop, oldprop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
 
 #if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
 static struct debugfs_blob_wrapper flat_dt_blob;

arch/mips/bcm47xx/prom.c

···
 			break;
 	}
 
+	/* Ignoring the last page when ddr size is 128M. Cached
+	 * accesses to last page is causing the processor to prefetch
+	 * using address above 128M stepping out of the ddr address
+	 * space.
+	 */
+	if (mem == 0x8000000)
+		mem -= 0x1000;
+
 	add_memory_region(0, mem, BOOT_MEM_RAM);
 }
 

arch/mips/mm/highmem.c

···
 #include <linux/module.h>
 #include <linux/highmem.h>
+#include <linux/sched.h>
 #include <linux/smp.h>
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>

arch/parisc/Kconfig

···
 	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
-	select HAVE_ARCH_TRACEHOOK
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
 	  in many of their workstations & servers (HP9000 700 and 800 series,

arch/parisc/kernel/pci.c

···
 
 #include <asm/io.h>
 #include <asm/system.h>
-#include <asm/cache.h>		/* for L1_CACHE_BYTES */
 #include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
···
 	} else {
 		printk(KERN_WARNING "pci_bios != NULL but init() is!\n");
 	}
+
+	/* Set the CLS for PCI as early as possible. */
+	pci_cache_line_size = pci_dfl_cache_line_size;
+
 	return 0;
 }
 
···
 	** upper byte is PCI_LATENCY_TIMER.
 	*/
 	pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
-				(0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+			      (0x80 << 8) | pci_cache_line_size);
 }
 
 

arch/powerpc/Kconfig

···
 
 config OF
 	def_bool y
+	select OF_FLATTREE
 
 config PPC_UDBG_16550
 	bool

arch/powerpc/include/asm/prom.h

···
 #include <asm/irq.h>
 #include <asm/atomic.h>
 
-#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT	1
-#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT	1
-
-#define of_compat_cmp(s1, s2, l)	strcasecmp((s1), (s2))
-#define of_prop_cmp(s1, s2)		strcmp((s1), (s2))
-#define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
-
-extern struct device_node *of_chosen;
-
 #define HAVE_ARCH_DEVTREE_FIXUPS
-
-/* For updating the device tree at runtime */
-extern void of_attach_node(struct device_node *);
-extern void of_detach_node(struct device_node *);
 
 #ifdef CONFIG_PPC32
 /*
···
 extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
 extern void pci_create_OF_bus_map(void);
 #endif
-
-extern struct resource *request_OF_resource(struct device_node* node,
-				int index, const char* name_postfix);
-extern int release_OF_resource(struct device_node* node, int index);
-
 
 /*
  * OF address retreival & translation

arch/powerpc/kernel/of_platform.c

···
 static int of_dev_phandle_match(struct device *dev, void *data)
 {
 	phandle *ph = data;
-	return to_of_device(dev)->node->linux_phandle == *ph;
+	return to_of_device(dev)->node->phandle == *ph;
 }
 
 struct of_device *of_find_device_by_phandle(phandle ph)

arch/powerpc/kernel/pci_64.c

···
 	 * G5 machines... So when something asks for bus 0 io base
 	 * (bus 0 is HT root), we return the AGP one instead.
 	 */
-	if (in_bus == 0 && machine_is_compatible("MacRISC4")) {
+	if (in_bus == 0 && of_machine_is_compatible("MacRISC4")) {
 		struct device_node *agp;
 
 		agp = of_find_compatible_node(NULL, NULL, "u3-agp");

arch/powerpc/kernel/prom.c

···
 #define DBG(fmt...)
 #endif
 
-
-static int __initdata dt_root_addr_cells;
-static int __initdata dt_root_size_cells;
-
 #ifdef CONFIG_PPC64
 int __initdata iommu_is_off;
 int __initdata iommu_force_on;
 unsigned long tce_alloc_start, tce_alloc_end;
 #endif
-
-typedef u32 cell_t;
-
-#if 0
-static struct boot_param_header *initial_boot_params __initdata;
-#else
-struct boot_param_header *initial_boot_params;
-#endif
-
-extern struct device_node *allnodes;	/* temporary while merging */
-
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
-/* export that to outside world */
-struct device_node *of_chosen;
-
-static inline char *find_flat_dt_string(u32 offset)
-{
-	return ((char *)initial_boot_params) +
-		initial_boot_params->off_dt_strings + offset;
-}
-
-/**
- * This function is used to scan the flattened device-tree, it is
- * used to extract the memory informations at boot before we can
- * unflatten the tree
- */
-int __init of_scan_flat_dt(int (*it)(unsigned long node,
-				     const char *uname, int depth,
-				     void *data),
-			   void *data)
-{
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	int rc = 0;
-	int depth = -1;
-
-	do {
-		u32 tag = *((u32 *)p);
-		char *pathp;
-		
-		p += 4;
-		if (tag == OF_DT_END_NODE) {
-			depth --;
-			continue;
-		}
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag == OF_DT_END)
-			break;
-		if (tag == OF_DT_PROP) {
-			u32 sz = *((u32 *)p);
-			p += 8;
-			if (initial_boot_params->version < 0x10)
-				p = _ALIGN(p, sz >= 8 ? 8 : 4);
-			p += sz;
-			p = _ALIGN(p, 4);
-			continue;
-		}
-		if (tag != OF_DT_BEGIN_NODE) {
-			printk(KERN_WARNING "Invalid tag %x scanning flattened"
-			       " device tree !\n", tag);
-			return -EINVAL;
-		}
-		depth++;
-		pathp = (char *)p;
-		p = _ALIGN(p + strlen(pathp) + 1, 4);
-		if ((*pathp) == '/') {
-			char *lp, *np;
-			for (lp = NULL, np = pathp; *np; np++)
-				if ((*np) == '/')
-					lp = np+1;
-			if (lp != NULL)
-				pathp = lp;
-		}
-		rc = it(p, pathp, depth, data);
-		if (rc != 0)
-			break;		
-	} while(1);
-
-	return rc;
-}
-
-unsigned long __init of_get_flat_dt_root(void)
-{
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-
-	while(*((u32 *)p) == OF_DT_NOP)
-		p += 4;
-	BUG_ON (*((u32 *)p) != OF_DT_BEGIN_NODE);
-	p += 4;
-	return _ALIGN(p + strlen((char *)p) + 1, 4);
-}
-
-/**
- * This  function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
-				 unsigned long *size)
-{
-	unsigned long p = node;
-
-	do {
-		u32 tag = *((u32 *)p);
-		u32 sz, noff;
-		const char *nstr;
-
-		p += 4;
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag != OF_DT_PROP)
-			return NULL;
-
-		sz = *((u32 *)p);
-		noff = *((u32 *)(p + 4));
-		p += 8;
-		if (initial_boot_params->version < 0x10)
-			p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-		nstr = find_flat_dt_string(noff);
-		if (nstr == NULL) {
-			printk(KERN_WARNING "Can't find property index"
-			       " name !\n");
-			return NULL;
-		}
-		if (strcmp(name, nstr) == 0) {
-			if (size)
-				*size = sz;
-			return (void *)p;
-		}
-		p += sz;
-		p = _ALIGN(p, 4);
-	} while(1);
-}
-
-int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
-{
-	const char* cp;
-	unsigned long cplen, l;
-
-	cp = of_get_flat_dt_prop(node, "compatible", &cplen);
-	if (cp == NULL)
-		return 0;
-	while (cplen > 0) {
-		if (strncasecmp(cp, compat, strlen(compat)) == 0)
-			return 1;
-		l = strlen(cp) + 1;
-		cp += l;
-		cplen -= l;
-	}
-
-	return 0;
-}
-
-static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
-				       unsigned long align)
-{
-	void *res;
-
-	*mem = _ALIGN(*mem, align);
-	res = (void *)*mem;
-	*mem += size;
-
-	return res;
-}
-
-static unsigned long __init unflatten_dt_node(unsigned long mem,
-					      unsigned long *p,
-					      struct device_node *dad,
-					      struct device_node ***allnextpp,
-					      unsigned long fpsize)
-{
-	struct device_node *np;
-	struct property *pp, **prev_pp = NULL;
-	char *pathp;
-	u32 tag;
-	unsigned int l, allocl;
-	int has_name = 0;
-	int new_format = 0;
-
-	tag = *((u32 *)(*p));
-	if (tag != OF_DT_BEGIN_NODE) {
-		printk("Weird tag at start of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	pathp = (char *)*p;
-	l = allocl = strlen(pathp) + 1;
-	*p = _ALIGN(*p + l, 4);
-
-	/* version 0x10 has a more compact unit name here instead of the full
-	 * path. we accumulate the full path size using "fpsize", we'll rebuild
-	 * it later. We detect this because the first character of the name is
-	 * not '/'.
-	 */
-	if ((*pathp) != '/') {
-		new_format = 1;
-		if (fpsize == 0) {
-			/* root node: special case. fpsize accounts for path
-			 * plus terminating zero. root node only has '/', so
-			 * fpsize should be 2, but we want to avoid the first
-			 * level nodes to have two '/' so we use fpsize 1 here
-			 */
-			fpsize = 1;
-			allocl = 2;
-		} else {
-			/* account for '/' and path size minus terminal 0
-			 * already in 'l'
-			 */
-			fpsize += l;
-			allocl = fpsize;
-		}
-	}
-
-
-	np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
-				__alignof__(struct device_node));
-	if (allnextpp) {
-		memset(np, 0, sizeof(*np));
-		np->full_name = ((char*)np) + sizeof(struct device_node);
-		if (new_format) {
-			char *p = np->full_name;
-			/* rebuild full path for new format */
-			if (dad && dad->parent) {
-				strcpy(p, dad->full_name);
-#ifdef DEBUG
-				if ((strlen(p) + l + 1) != allocl) {
-					DBG("%s: p: %d, l: %d, a: %d\n",
-					    pathp, (int)strlen(p), l, allocl);
-				}
-#endif
-				p += strlen(p);
-			}
-			*(p++) = '/';
-			memcpy(p, pathp, l);
-		} else
-			memcpy(np->full_name, pathp, l);
-		prev_pp = &np->properties;
-		**allnextpp = np;
-		*allnextpp = &np->allnext;
-		if (dad != NULL) {
-			np->parent = dad;
-			/* we temporarily use the next field as `last_child'*/
-			if (dad->next == 0)
-				dad->child = np;
-			else
-				dad->next->sibling = np;
-			dad->next = np;
-		}
-		kref_init(&np->kref);
-	}
-	while(1) {
-		u32 sz, noff;
-		char *pname;
-
-		tag = *((u32 *)(*p));
-		if (tag == OF_DT_NOP) {
-			*p += 4;
-			continue;
-		}
-		if (tag != OF_DT_PROP)
-			break;
-		*p += 4;
-		sz = *((u32 *)(*p));
-		noff = *((u32 *)((*p) + 4));
-		*p += 8;
-		if (initial_boot_params->version < 0x10)
-			*p = _ALIGN(*p, sz >= 8 ? 8 : 4);
-
-		pname = find_flat_dt_string(noff);
-		if (pname == NULL) {
-			printk("Can't find property name in list !\n");
-			break;
-		}
-		if (strcmp(pname, "name") == 0)
-			has_name = 1;
-		l = strlen(pname) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property),
-					__alignof__(struct property));
-		if (allnextpp) {
-			if (strcmp(pname, "linux,phandle") == 0) {
-				np->node = *((u32 *)*p);
-				if (np->linux_phandle == 0)
-					np->linux_phandle = np->node;
-			}
-			if (strcmp(pname, "ibm,phandle") == 0)
-				np->linux_phandle = *((u32 *)*p);
-			pp->name = pname;
-			pp->length = sz;
-			pp->value = (void *)*p;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-		}
-		*p = _ALIGN((*p) + sz, 4);
-	}
-	/* with version 0x10 we may not have the name property, recreate
-	 * it here from the unit name if absent
-	 */
-	if (!has_name) {
-		char *p = pathp, *ps = pathp, *pa = NULL;
-		int sz;
-
-		while (*p) {
-			if ((*p) == '@')
-				pa = p;
-			if ((*p) == '/')
-				ps = p + 1;
-			p++;
-		}
-		if (pa < ps)
-			pa = p;
-		sz = (pa - ps) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
-					__alignof__(struct property));
-		if (allnextpp) {
-			pp->name = "name";
-			pp->length = sz;
-			pp->value = pp + 1;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-			memcpy(pp->value, ps, sz - 1);
-			((char *)pp->value)[sz - 1] = 0;
-			DBG("fixed up name for %s -> %s\n", pathp,
-				(char *)pp->value);
-		}
-	}
-	if (allnextpp) {
-		*prev_pp = NULL;
-		np->name = of_get_property(np, "name", NULL);
-		np->type = of_get_property(np, "device_type", NULL);
-
-		if (!np->name)
-			np->name = "<NULL>";
-		if (!np->type)
-			np->type = "<NULL>";
-	}
-	while (tag == OF_DT_BEGIN_NODE) {
-		mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
-		tag = *((u32 *)(*p));
-	}
-	if (tag != OF_DT_END_NODE) {
-		printk("Weird tag at end of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	return mem;
-}
 
 static int __init early_parse_mem(char *p)
 {
···
 	DBG("-> move_device_tree\n");
 
 	start = __pa(initial_boot_params);
-	size = initial_boot_params->totalsize;
+	size = be32_to_cpu(initial_boot_params->totalsize);
 
 	if ((memory_limit && (start + size) > memory_limit) ||
 			overlaps_crashkernel(start, size)) {
···
 	}
 
 	DBG("<- move_device_tree\n");
-}
-
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-	unsigned long start, mem, size;
-	struct device_node **allnextp = &allnodes;
-
-	DBG(" -> unflatten_device_tree()\n");
-
-	/* First pass, scan for size */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-	size = (size | 3) + 1;
-
-	DBG("  size is %lx, allocating...\n", size);
-
-	/* Allocate memory for the expanded device tree */
-	mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-	mem = (unsigned long) __va(mem);
-
-	((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-	DBG("  unflattening %lx...\n", mem);
-
-	/* Second pass, do actual unflattening */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-	if (*((u32 *)start) != OF_DT_END)
-		printk(KERN_WARNING "Weird tag at end of tree: %08x\n", *((u32 *)start));
-	if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-		printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-		       ((u32 *)mem)[size / 4] );
-	*allnextp = NULL;
-
-	/* Get pointer to OF "/chosen" node for use everywhere */
-	of_chosen = of_find_node_by_path("/chosen");
-	if (of_chosen == NULL)
-		of_chosen = of_find_node_by_path("/chosen@0");
-
-	DBG(" <- unflatten_device_tree()\n");
 }
 
 /*
···
 	return 0;
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-static void __init early_init_dt_check_for_initrd(unsigned long node)
-{
-	unsigned long l;
-	u32 *prop;
-
-	DBG("Looking for initrd properties... ");
-
-	prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
-	if (prop) {
-		initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4));
-
-		prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
-		if (prop) {
-			initrd_end = (unsigned long)
-					__va(of_read_ulong(prop, l/4));
-			initrd_below_start_ok = 1;
-		} else {
-			initrd_start = 0;
-		}
-	}
-
-	DBG("initrd_start=0x%lx  initrd_end=0x%lx\n", initrd_start, initrd_end);
-}
-#else
-static inline void early_init_dt_check_for_initrd(unsigned long node)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-static int __init early_init_dt_scan_chosen(unsigned long node,
-					    const char *uname, int depth, void *data)
+void __init early_init_dt_scan_chosen_arch(unsigned long node)
 {
 	unsigned long *lprop;
-	unsigned long l;
-	char *p;
-
-	DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
-
-	if (depth != 1 ||
-	    (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
-		return 0;
 
 #ifdef CONFIG_PPC64
 	/* check if iommu is forced on or off */
···
 #endif
 
 	/* mem=x on the command line is the preferred mechanism */
- 	lprop = of_get_flat_dt_prop(node, "linux,memory-limit", NULL);
- 	if (lprop)
- 		memory_limit = *lprop;
+	lprop = of_get_flat_dt_prop(node, "linux,memory-limit", NULL);
+	if (lprop)
+		memory_limit = *lprop;
 
 #ifdef CONFIG_PPC64
- 	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-start", NULL);
- 	if (lprop)
- 		tce_alloc_start = *lprop;
- 	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-end", NULL);
- 	if (lprop)
- 		tce_alloc_end = *lprop;
+	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-start", NULL);
+	if (lprop)
+		tce_alloc_start = *lprop;
+	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-end", NULL);
+	if (lprop)
+		tce_alloc_end = *lprop;
 #endif
 
 #ifdef CONFIG_KEXEC
···
 	if (lprop)
 		crashk_res.end = crashk_res.start + *lprop - 1;
 #endif
-
-	early_init_dt_check_for_initrd(node);
-
-	/* Retreive command line */
- 	p = of_get_flat_dt_prop(node, "bootargs", &l);
-	if (p != NULL && l > 0)
-		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
-
-#ifdef CONFIG_CMDLINE
-	if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
-		strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif /* CONFIG_CMDLINE */
-
-	DBG("Command line is: %s\n", cmd_line);
-
-	/* break now */
-	return 1;
-}
-
-static int __init early_init_dt_scan_root(unsigned long node,
-					  const char *uname, int depth, void *data)
-{
-	u32 *prop;
-
-	if (depth != 0)
-		return 0;
-
-	prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
-	dt_root_size_cells = (prop == NULL) ? 1 : *prop;
-	DBG("dt_root_size_cells = %x\n", dt_root_size_cells);
-
-	prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
-	dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
-	DBG("dt_root_addr_cells = %x\n", dt_root_addr_cells);
-	
-	/* break now */
-	return 1;
-}
-
-static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
-{
-	cell_t *p = *cellp;
-
-	*cellp = p + s;
-	return of_read_number(p, s);
 }
 
 #ifdef CONFIG_PPC_PSERIES
···
  */
 static int __init early_init_dt_scan_drconf_memory(unsigned long node)
 {
-	cell_t *dm, *ls, *usm;
+	__be32 *dm, *ls, *usm;
 	unsigned long l, n, flags;
 	u64 base, size, lmb_size;
 	unsigned int is_kexec_kdump = 0, rngs;
 
 	ls = of_get_flat_dt_prop(node, "ibm,lmb-size", &l);
-	if (ls == NULL || l < dt_root_size_cells * sizeof(cell_t))
+	if (ls == NULL || l < dt_root_size_cells * sizeof(__be32))
 		return 0;
 	lmb_size = dt_mem_next_cell(dt_root_size_cells, &ls);
 
 	dm = of_get_flat_dt_prop(node, "ibm,dynamic-memory", &l);
-	if (dm == NULL || l < sizeof(cell_t))
+	if (dm == NULL || l < sizeof(__be32))
 		return 0;
 
 	n = *dm++;	/* number of entries */
-	if (l < (n * (dt_root_addr_cells + 4) + 1) * sizeof(cell_t))
+	if (l < (n * (dt_root_addr_cells + 4) + 1) * sizeof(__be32))
 		return 0;
 
 	/* check if this is a kexec/kdump kernel. */
···
 #define early_init_dt_scan_drconf_memory(node)	0
 #endif /* CONFIG_PPC_PSERIES */
 
-static int __init early_init_dt_scan_memory(unsigned long node,
-					    const char *uname, int depth, void *data)
+static int __init early_init_dt_scan_memory_ppc(unsigned long node,
+						const char *uname,
+						int depth, void *data)
 {
-	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	cell_t *reg, *endp;
-	unsigned long l;
-
-	/* Look for the ibm,dynamic-reconfiguration-memory node */
 	if (depth == 1 &&
 	    strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
 		return early_init_dt_scan_drconf_memory(node);
-
-	/* We are scanning "memory" nodes only */
-	if (type == NULL) {
-		/*
-		 * The longtrail doesn't have a device_type on the
-		 * /memory node, so look for the node called /memory@0.
-		 */
-		if (depth != 1 || strcmp(uname, "memory@0") != 0)
-			return 0;
-	} else if (strcmp(type, "memory") != 0)
-		return 0;
-
-	reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l);
-	if (reg == NULL)
-		reg = of_get_flat_dt_prop(node, "reg", &l);
-	if (reg == NULL)
-		return 0;
-
-	endp = reg + (l / sizeof(cell_t));
-
-	DBG("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
-	    uname, l, reg[0], reg[1], reg[2], reg[3]);
-
-	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
-		u64 base, size;
-
-		base = dt_mem_next_cell(dt_root_addr_cells, &reg);
-		size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-		if (size == 0)
-			continue;
-		DBG(" - %llx ,  %llx\n", (unsigned long long)base,
-		    (unsigned long long)size);
-#ifdef CONFIG_PPC64
-		if (iommu_is_off) {
-			if (base >= 0x80000000ul)
-				continue;
-			if ((base + size) > 0x80000000ul)
-				size = 0x80000000ul - base;
-		}
-#endif
-		lmb_add(base, size);
-
-		memstart_addr = min((u64)memstart_addr, base);
-	}
-
-	return 0;
+	
+	return early_init_dt_scan_memory(node, uname, depth, data);
 }
+
+void __init early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+#if defined(CONFIG_PPC64)
+	if (iommu_is_off) {
+		if (base >= 0x80000000ul)
+			return;
+		if ((base + size) > 0x80000000ul)
+			size = 0x80000000ul - base;
+	}
+#endif
+
+	lmb_add(base, size);
+
+	memstart_addr = min((u64)memstart_addr, base);
+}
+
+u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+{
+	return lmb_alloc(size, align);
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init early_init_dt_setup_initrd_arch(unsigned long start,
+		unsigned long end)
+{
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
+}
+#endif
 
 static void __init early_reserve_mem(void)
 {
···
 	/* Scan memory nodes and rebuild LMBs */
 	lmb_init();
 	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+	of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
 
 	/* Save command line for /proc/cmdline and then parse parameters */
 	strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
···
 	DBG(" <- early_init_devtree()\n");
 }
 
-
-/**
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int machine_is_compatible(const char *compat)
-{
-	struct device_node *root;
-	int rc = 0;
-
-	root = of_find_node_by_path("/");
-	if (root) {
-		rc = of_device_is_compatible(root, compat);
-		of_node_put(root);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(machine_is_compatible);
-
 /*******
  *
  * New implementation of the OF "find" APIs, return a refcounted
···
  * this isn't dealt with yet.
  *
  *******/
-
-/**
- *	of_find_node_by_phandle - Find a node given a phandle
- *	@handle:	phandle of the node to find
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-	struct device_node *np;
-
-	read_lock(&devtree_lock);
-	for (np = allnodes; np != 0; np = np->allnext)
-		if (np->linux_phandle == handle)
-			break;
-	of_node_get(np);
-	read_unlock(&devtree_lock);
-	return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
 
 /**
  *	of_find_next_cache_node - Find a node's subsidiary cache
···
 				return child;
 
 	return NULL;
-}
-
-/**
- *	of_node_get - Increment refcount of a node
- *	@node:	Node to inc refcount, NULL is supported to
- *		simplify writing of callers
- *
- *	Returns node.
- */
-struct device_node *of_node_get(struct device_node *node)
-{
-	if (node)
-		kref_get(&node->kref);
-	return node;
-}
-EXPORT_SYMBOL(of_node_get);
-
-static inline struct device_node * kref_to_device_node(struct kref *kref)
-{
-	return container_of(kref, struct device_node, kref);
-}
-
-/**
- *	of_node_release - release a dynamically allocated node
- *	@kref:  kref element of the node to be released
- *
- *	In of_node_put() this function is passed to kref_put()
- *	as the destructor.
- */
-static void of_node_release(struct kref *kref)
-{
-	struct device_node *node = kref_to_device_node(kref);
-	struct property *prop = node->properties;
-
-	/* We should never be releasing nodes that haven't been detached. */
-	if (!of_node_check_flag(node, OF_DETACHED)) {
-		printk("WARNING: Bad of_node_put() on %s\n", node->full_name);
-		dump_stack();
-		kref_init(&node->kref);
-		return;
-	}
-
-	if (!of_node_check_flag(node, OF_DYNAMIC))
-		return;
-
-	while (prop) {
-		struct property *next = prop->next;
-		kfree(prop->name);
-		kfree(prop->value);
-		kfree(prop);
-		prop = next;
-
-		if (!prop) {
-			prop = node->deadprops;
-			node->deadprops = NULL;
-		}
-	}
-	kfree(node->full_name);
-	kfree(node->data);
-	kfree(node);
-}
-
-/**
- *	of_node_put - Decrement refcount of a node
- *	@node:	Node to dec refcount, NULL is supported to
- *		simplify writing of callers
- *
- */
-void of_node_put(struct device_node *node)
-{
-	if (node)
-		kref_put(&node->kref, of_node_release);
-}
-EXPORT_SYMBOL(of_node_put);
-
-/*
- * Plug a device node into the tree and global list.
- */
-void of_attach_node(struct device_node *np)
-{
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	np->sibling = np->parent->child;
-	np->allnext = allnodes;
-	np->parent->child = np;
-	allnodes = np;
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
-/*
- * "Unplug" a node from the device tree.  The caller must hold
- * a reference to the node.  The memory associated with the node
- * is not freed until its refcount goes to zero.
- */
-void of_detach_node(struct device_node *np)
-{
-	struct device_node *parent;
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-
-	parent = np->parent;
-	if (!parent)
-		goto out_unlock;
-
-	if (allnodes == np)
-		allnodes = np->allnext;
-	else {
-		struct device_node *prev;
-		for (prev = allnodes;
-		     prev->allnext != np;
-		     prev = prev->allnext)
-			;
-		prev->allnext = np->allnext;
-	}
-
-	if (parent->child == np)
-		parent->child = np->sibling;
-	else {
-		struct device_node *prevsib;
-		for (prevsib = np->parent->child;
-		     prevsib->sibling != np;
-		     prevsib = prevsib->sibling)
-			;
-		prevsib->sibling = np->sibling;
-	}
-
-	of_node_set_flag(np, OF_DETACHED);
-
-out_unlock:
-	write_unlock_irqrestore(&devtree_lock, flags);
 }
 
 #ifdef CONFIG_PPC_PSERIES
···
 	if (machine_is(powermac))
 		return -ENODEV;
 
-	/* fix up new node's linux_phandle field */
+	/* fix up new node's phandle field */
 	if ((ibm_phandle = of_get_property(node, "ibm,phandle", NULL)))
-		node->linux_phandle = *ibm_phandle;
+		node->phandle = *ibm_phandle;
 
 out:
 	of_node_put(parent);
···
 }
 __initcall(prom_reconfig_setup);
 #endif
-
-/*
- * Add a property to a node
- */
-int prom_add_property(struct device_node* np, struct property* prop)
-{
-	struct property **next;
-	unsigned long flags;
-
-	prop->next = NULL;	
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (strcmp(prop->name, (*next)->name) == 0) {
-			/* duplicate ! don't insert it */
-			write_unlock_irqrestore(&devtree_lock, flags);
-			return -1;
-		}
-		next = &(*next)->next;
-	}
-	*next = prop;
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_add_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Remove a property from a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, so it won't be found any more.
- */
-int prom_remove_property(struct device_node *np, struct property *prop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == prop) {
-			/* found the node */
-			*next = prop->next;
-			prop->next = np->deadprops;
-			np->deadprops = prop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to remove the proc node as well */
-	if (np->pde)
-		proc_device_tree_remove_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Update a property in a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, and add the new property to the
- * property list
- */
-int prom_update_property(struct device_node *np,
-			 struct property *newprop,
-			 struct property *oldprop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == oldprop) {
-			/* found the node */
-			newprop->next = oldprop->next;
-			*next = newprop;
-			oldprop->next = np->deadprops;
-			np->deadprops = oldprop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_update_prop(np->pde, newprop, oldprop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
 
 /* Find the device node for a given logical cpu number, also returns the cpu
  * local thread number (index in ibm,interrupt-server#s) if relevant and

arch/powerpc/platforms/85xx/mpc85xx_mds.c

···
 	}
 
 	mpic = mpic_alloc(np, r.start,
-			MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
+			MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
+			MPIC_BROKEN_FRR_NIRQS,
 			0, 256, " OpenPIC  ");
 	BUG_ON(mpic == NULL);
 	of_node_put(np);

arch/powerpc/platforms/85xx/xes_mpc85xx.c

···
 	printk(KERN_INFO "xes_mpc85xx: Enabling L2 as cache\n");
 
 	ctl = MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2I;
-	if (machine_is_compatible("MPC8540") ||
-	    machine_is_compatible("MPC8560"))
+	if (of_machine_is_compatible("MPC8540") ||
+	    of_machine_is_compatible("MPC8560"))
 		/*
 		 * Assume L2 SRAM is used fully for cache, so set
 		 * L2BLKSZ (bits 4:5) to match L2SIZ (bits 2:3).

arch/powerpc/platforms/cell/cbe_powerbutton.c

···
 	int ret = 0;
 	struct input_dev *dev;
 
-	if (!machine_is_compatible("IBM,CBPLUS-1.0")) {
+	if (!of_machine_is_compatible("IBM,CBPLUS-1.0")) {
 		printk(KERN_ERR "%s: Not a cell blade.\n", __func__);
 		ret = -ENODEV;
 		goto out;

arch/powerpc/platforms/cell/ras.c

···
 {
 	struct cbe_pmd_regs __iomem *regs;
 
-	sysreset_hack = machine_is_compatible("IBM,CBPLUS-1.0");
+	sysreset_hack = of_machine_is_compatible("IBM,CBPLUS-1.0");
 	if (!sysreset_hack)
 		return 0;
 

arch/powerpc/platforms/cell/spu_manage.c

···
 			continue;
 		vic_handles = of_get_property(spu_dn, "vicinity", &lenp);
 		for (i=0; i < (lenp / sizeof(phandle)); i++) {
-			if (vic_handles[i] == target->linux_phandle)
+			if (vic_handles[i] == target->phandle)
 				return spu;
 		}
 	}
···
 
 			if (strcmp(name, "spe") == 0) {
 				spu = devnode_spu(cbe, vic_dn);
-				avoid_ph = last_spu_dn->linux_phandle;
+				avoid_ph = last_spu_dn->phandle;
 			} else {
 				/*
 				 * "mic-tm" and "bif0" nodes do not have
···
 					last_spu->has_mem_affinity = 1;
 					spu->has_mem_affinity = 1;
 				}
-				avoid_ph = vic_dn->linux_phandle;
+				avoid_ph = vic_dn->phandle;
 			}
 
 			list_add_tail(&spu->aff_list, &last_spu->aff_list);

arch/powerpc/platforms/pasemi/cpufreq.c

···
 
 static int __init pas_cpufreq_init(void)
 {
-	if (!machine_is_compatible("PA6T-1682M") &&
-	    !machine_is_compatible("pasemi,pwrficient"))
+	if (!of_machine_is_compatible("PA6T-1682M") &&
+	    !of_machine_is_compatible("pasemi,pwrficient"))
 		return -ENODEV;
 
 	return cpufreq_register_driver(&pas_cpufreq_driver);

arch/powerpc/platforms/powermac/cpufreq_32.c

···
 	cur_freq = (*value) / 1000;
 
 	/*  Check for 7447A based MacRISC3 */
-	if (machine_is_compatible("MacRISC3") &&
+	if (of_machine_is_compatible("MacRISC3") &&
 	    of_get_property(cpunode, "dynamic-power-step", NULL) &&
 	    PVR_VER(mfspr(SPRN_PVR)) == 0x8003) {
 		pmac_cpufreq_init_7447A(cpunode);
 	/* Check for other MacRISC3 machines */
-	} else if (machine_is_compatible("PowerBook3,4") ||
-		   machine_is_compatible("PowerBook3,5") ||
-		   machine_is_compatible("MacRISC3")) {
+	} else if (of_machine_is_compatible("PowerBook3,4") ||
+		   of_machine_is_compatible("PowerBook3,5") ||
+		   of_machine_is_compatible("MacRISC3")) {
 		pmac_cpufreq_init_MacRISC3(cpunode);
 	/* Else check for iBook2 500/600 */
-	} else if (machine_is_compatible("PowerBook4,1")) {
+	} else if (of_machine_is_compatible("PowerBook4,1")) {
 		hi_freq = cur_freq;
 		low_freq = 400000;
 		set_speed_proc = pmu_set_cpu_speed;
 		is_pmu_based = 1;
 	}
 	/* Else check for TiPb 550 */
-	else if (machine_is_compatible("PowerBook3,3") && cur_freq == 550000) {
+	else if (of_machine_is_compatible("PowerBook3,3") && cur_freq == 550000) {
 		hi_freq = cur_freq;
 		low_freq = 500000;
 		set_speed_proc = pmu_set_cpu_speed;
 		is_pmu_based = 1;
 	}
 	/* Else check for TiPb 400 & 500 */
-	else if (machine_is_compatible("PowerBook3,2")) {
+	else if (of_machine_is_compatible("PowerBook3,2")) {
 		/* We only know about the 400 MHz and the 500Mhz model
 		 * they both have 300 MHz as low frequency
 		 */

arch/powerpc/platforms/powermac/cpufreq_64.c

···
 	int rc = -ENODEV;
 
 	/* Check supported platforms */
-	if (machine_is_compatible("PowerMac8,1") ||
-	    machine_is_compatible("PowerMac8,2") ||
-	    machine_is_compatible("PowerMac9,1"))
+	if (of_machine_is_compatible("PowerMac8,1") ||
+	    of_machine_is_compatible("PowerMac8,2") ||
+	    of_machine_is_compatible("PowerMac9,1"))
 		use_volts_smu = 1;
-	else if (machine_is_compatible("PowerMac11,2"))
+	else if (of_machine_is_compatible("PowerMac11,2"))
 		use_volts_vdnap = 1;
 	else
 		return -ENODEV;
···
 		return -ENODEV;
 	}
 
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		rc = g5_pm72_cpufreq_init(cpus);
 #ifdef CONFIG_PMAC_SMU
 	else

arch/powerpc/platforms/powermac/feature.c

···
 	    }
 	}
 	for(i=0; i<ARRAY_SIZE(pmac_mb_defs); i++) {
-	    if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
+	    if (of_machine_is_compatible(pmac_mb_defs[i].model_string)) {
 		pmac_mb = pmac_mb_defs[i];
 		goto found;
 	    }

arch/powerpc/platforms/powermac/pfunc_core.c

···
 	list_for_each_entry(func, &dev->functions, link) {
 		if (name && strcmp(name, func->name))
 			continue;
-		if (func->phandle && target->node != func->phandle)
+		if (func->phandle && target->phandle != func->phandle)
 			continue;
 		if ((func->flags & flags) == 0)
 			continue;

arch/powerpc/platforms/powermac/smp.c

···
 #ifdef CONFIG_PPC64
 
 	/* i2c based HW sync on some G5s */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		smp_core99_setup_i2c_hwsync(ncpus);
 
 	/* pfunc based HW sync on recent G5s */
···
 #else /* CONFIG_PPC64 */
 
 	/* GPIO based HW sync on ppc32 Core99 */
-	if (pmac_tb_freeze == NULL && !machine_is_compatible("MacRISC4")) {
+	if (pmac_tb_freeze == NULL && !of_machine_is_compatible("MacRISC4")) {
 		struct device_node *cpu;
 		const u32 *tbprop = NULL;
 
···
 #endif
 
 	/* 32 bits SMP can't NAP */
-	if (!machine_is_compatible("MacRISC4"))
+	if (!of_machine_is_compatible("MacRISC4"))
 		powersave_nap = 0;
 }
 
···
 		/* If we didn't start the second CPU, we must take
 		 * it off the bus
 		 */
-		if (machine_is_compatible("MacRISC4") &&
+		if (of_machine_is_compatible("MacRISC4") &&
 		    num_online_cpus() < 2)		
 			g5_phy_disable_cpu1();
 #endif /* CONFIG_PPC64 */

arch/powerpc/platforms/powermac/time.c

···
 	 * calibration. That's better since the VIA itself seems
 	 * to be slightly off. --BenH
 	 */
-	if (!machine_is_compatible("MacRISC2") &&
-	    !machine_is_compatible("MacRISC3") &&
-	    !machine_is_compatible("MacRISC4"))
+	if (!of_machine_is_compatible("MacRISC2") &&
+	    !of_machine_is_compatible("MacRISC3") &&
+	    !of_machine_is_compatible("MacRISC4"))
 		if (via_calibrate_decr())
 			return;
 
···
 	 * probably implement calibration based on the KL timer on these
 	 * machines anyway... -BenH
 	 */
-	if (machine_is_compatible("PowerMac3,5"))
+	if (of_machine_is_compatible("PowerMac3,5"))
 		if (via_calibrate_decr())
 			return;
 #endif

arch/powerpc/platforms/powermac/udbg_scc.c

···
 		scc_inittab[1] = in_8(sccc);
 		out_8(sccc, 12);
 		scc_inittab[3] = in_8(sccc);
-	} else if (machine_is_compatible("RackMac1,1")
-		   || machine_is_compatible("RackMac1,2")
-		   || machine_is_compatible("MacRISC4")) {
+	} else if (of_machine_is_compatible("RackMac1,1")
+		   || of_machine_is_compatible("RackMac1,2")
+		   || of_machine_is_compatible("MacRISC4")) {
 		/* Xserves and G5s default to 57600 */
 		scc_inittab[1] = 0;
 		scc_inittab[3] = 0;

arch/powerpc/sysdev/grackle.c

···
 void __init setup_grackle(struct pci_controller *hose)
 {
 	setup_indirect_pci(hose, 0xfec00000, 0xfee00000, 0);
-	if (machine_is_compatible("PowerMac1,1"))
+	if (of_machine_is_compatible("PowerMac1,1"))
 		ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
-	if (machine_is_compatible("AAPL,PowerBook1998"))
+	if (of_machine_is_compatible("AAPL,PowerBook1998"))
 		grackle_set_loop_snoop(hose, 1);
 #if 0	/* Disabled for now, HW problems ??? */
 	grackle_set_stg(hose, 1);

arch/sparc/include/asm/stat.h

···
 	ino_t		st_ino;
 	mode_t		st_mode;
 	short		st_nlink;
-	uid_t		st_uid;
-	gid_t		st_gid;
+	uid16_t		st_uid;
+	gid16_t		st_gid;
 	unsigned short	st_rdev;
 	off_t		st_size;
 	time_t		st_atime;

arch/sparc/kernel/devices.c

···
 
 	cur_inst = 0;
 	for_each_node_by_type(dp, "cpu") {
-		int err = check_cpu_node(dp->node, &cur_inst,
+		int err = check_cpu_node(dp->phandle, &cur_inst,
 					 compare, compare_arg,
 					 prom_node, mid);
 		if (!err) {

arch/sparc/kernel/kstack.h

···
 {
 	unsigned long base = (unsigned long) tp;
 
+	/* Stack pointer must be 16-byte aligned.  */
+	if (sp & (16UL - 1))
+		return false;
+
 	if (sp >= (base + sizeof(struct thread_info)) &&
 	    sp <= (base + THREAD_SIZE - sizeof(struct sparc_stackf)))
 		return true;

arch/sparc/kernel/of_device_32.c

···
 
 static int of_bus_ambapp_match(struct device_node *np)
 {
-	return !strcmp(np->name, "ambapp");
+	return !strcmp(np->type, "ambapp");
 }
 
 static void of_bus_ambapp_count_cells(struct device_node *child,
···
 	if (!parent)
 		dev_set_name(&op->dev, "root");
 	else
-		dev_set_name(&op->dev, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->phandle);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",

arch/sparc/kernel/of_device_64.c

···
 	if (!parent)
 		dev_set_name(&op->dev, "root");
 	else
-		dev_set_name(&op->dev, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->phandle);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",

arch/sparc/kernel/pci.c

···
 					 struct pci_bus *bus, int devfn)
 {
 	struct dev_archdata *sd;
+	struct pci_slot *slot;
 	struct of_device *op;
 	struct pci_dev *dev;
 	const char *type;
···
 	dev->dev.bus = &pci_bus_type;
 	dev->devfn = devfn;
 	dev->multifunction = 0;		/* maybe a lie? */
+	set_pcie_port_type(dev);
+
+	list_for_each_entry(slot, &dev->bus->slots, list)
+		if (PCI_SLOT(dev->devfn) == slot->number)
+			dev->slot = slot;
 
 	dev->vendor = of_getintprop_default(node, "vendor-id", 0xffff);
 	dev->device = of_getintprop_default(node, "device-id", 0xffff);
···
 
 	dev->current_state = 4;		/* unknown power state */
 	dev->error_state = pci_channel_io_normal;
+	dev->dma_mask = 0xffffffff;
 
 	if (!strcmp(node->name, "pci")) {
 		/* a PCI-PCI bridge */

arch/sparc/kernel/prom.h

···
 #include <linux/spinlock.h>
 #include <asm/prom.h>
 
-extern struct device_node *allnodes;	/* temporary while merging */
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
 extern void * prom_early_alloc(unsigned long size);
 extern void irq_trans_init(struct device_node *dp);
 

arch/sparc/kernel/prom_common.c

···
 char *of_console_options;
 EXPORT_SYMBOL(of_console_options);
 
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-	struct device_node *np;
-
-	for (np = allnodes; np; np = np->allnext)
-		if (np->node == handle)
-			break;
-
-	return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
 int of_getintprop_default(struct device_node *np, const char *name, int def)
 {
 	struct property *prop;
···
 			void *old_val = prop->value;
 			int ret;
 
-			ret = prom_setprop(dp->node, name, val, len);
+			ret = prom_setprop(dp->phandle, name, val, len);
 
 			err = -EINVAL;
 			if (ret >= 0) {
···
 
 	dp->name = get_one_property(node, "name");
 	dp->type = get_one_property(node, "device_type");
-	dp->node = node;
+	dp->phandle = node;
 
 	dp->properties = build_prop_list(node);
 
···
 
 	nextp = &allnodes->allnext;
 	allnodes->child = prom_build_tree(allnodes,
-					  prom_getchild(allnodes->node),
+					  prom_getchild(allnodes->phandle),
 					  &nextp);
 	of_console_init();
 

arch/sparc/kernel/smp_64.c

···
 	} else {
 		struct device_node *dp = of_find_node_by_cpuid(cpu);
 
-		prom_startcpu(dp->node, entry, cookie);
+		prom_startcpu(dp->phandle, entry, cookie);
 	}
 
 	for (timeout = 0; timeout < 50000; timeout++) {

arch/sparc/kernel/tsb.S

···
 
 tsb_itlb_load:
 	/* Executable bit must be set.  */
-661:	andcc		%g5, _PAGE_EXEC_4U, %g0
-	.section	.sun4v_1insn_patch, "ax"
+661:	sethi		%hi(_PAGE_EXEC_4U), %g4
+	andcc		%g5, %g4, %g0
+	.section	.sun4v_2insn_patch, "ax"
 	.word		661b
 	andcc		%g5, _PAGE_EXEC_4V, %g0
+	nop
 	.previous
 
 	be,pn		%xcc, tsb_do_fault

arch/x86/include/asm/processor.h

···
 	struct perf_event	*ptrace_bps[HBP_NUM];
 	/* Debug status used for traps, single steps, etc... */
 	unsigned long           debugreg6;
+	/* Keep track of the exact dr7 value set by the user */
+	unsigned long           ptrace_dr7;
 	/* Fault info: */
 	unsigned long		cr2;
 	unsigned long		trap_no;

arch/x86/kernel/acpi/boot.c

···
 	 },
 	{
 	 .callback = force_acpi_ht,
-	 .ident = "ASUS P2B-DS",
-	 .matches = {
-		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-		     DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"),
-		     },
-	 },
-	{
-	 .callback = force_acpi_ht,
 	 .ident = "ASUS CUR-DLS",
 	 .matches = {
 		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),

arch/x86/kernel/hw_breakpoint.c

···
 	return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
 }
 
-/*
- * Store a breakpoint's encoded address, length, and type.
- */
-static int arch_store_info(struct perf_event *bp)
-{
-	struct arch_hw_breakpoint *info = counter_arch_bp(bp);
-	/*
-	 * For kernel-addresses, either the address or symbol name can be
-	 * specified.
-	 */
-	if (info->name)
-		info->address = (unsigned long)
-				kallsyms_lookup_name(info->name);
-	if (info->address)
-		return 0;
-
-	return -EINVAL;
-}
-
 int arch_bp_generic_fields(int x86_len, int x86_type,
 			   int *gen_len, int *gen_type)
 {
···
 		return ret;
 	}
 
-	ret = arch_store_info(bp);
-
-	if (ret < 0)
-		return ret;
+	/*
+	 * For kernel-addresses, either the address or symbol name can be
+	 * specified.
+	 */
+	if (info->name)
+		info->address = (unsigned long)
+				kallsyms_lookup_name(info->name);
 	/*
 	 * Check that the low-order bits of the address are appropriate
 	 * for the alignment implied by len.

arch/x86/kernel/ptrace.c

···
 	} else if (n == 6) {
 		val = thread->debugreg6;
 	 } else if (n == 7) {
-		val = ptrace_get_dr7(thread->ptrace_bps);
+		val = thread->ptrace_dr7;
 	}
 	return val;
 }
···
 			return rc;
 	}
 	/* All that's left is DR7 */
-	if (n == 7)
+	if (n == 7) {
 		rc = ptrace_write_dr7(tsk, val);
+		if (!rc)
+			thread->ptrace_dr7 = val;
+	}
 
 ret_path:
 	return rc;

block/blk-core.c

···
  */
 static inline bool queue_should_plug(struct request_queue *q)
 {
-	return !(blk_queue_nonrot(q) && blk_queue_queuing(q));
+	return !(blk_queue_nonrot(q) && blk_queue_tagged(q));
 }
 
 static int __make_request(struct request_queue *q, struct bio *bio)
···
 	 * and to it is freed is accounted as io that is in progress at
 	 * the driver side.
 	 */
-	if (blk_account_rq(rq)) {
+	if (blk_account_rq(rq))
 		q->in_flight[rq_is_sync(rq)]++;
-		/*
-		 * Mark this device as supporting hardware queuing, if
-		 * we have more IOs in flight than 4.
-		 */
-		if (!blk_queue_queuing(q) && queue_in_flight(q) > 4)
-			set_bit(QUEUE_FLAG_CQ, &q->queue_flags);
-	}
 }
 
 /**

drivers/acpi/dock.c

···
 	struct platform_device *dd;
 
 	id = dock_station_count;
+	memset(&ds, 0, sizeof(ds));
 	dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds));
 	if (IS_ERR(dd))
 		return PTR_ERR(dd);

drivers/acpi/processor_idle.c

···
 	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
 	  DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
 	 (void *)2},
+	{ set_max_cstate, "Pavilion zv5000", {
+	  DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"Pavilion zv5000 (DS502A#ABA)")},
+	 (void *)1},
+	{ set_max_cstate, "Asus L8400B", {
+	  DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
+	 (void *)1},
 	{},
 };
 
···
 		return(acpi_idle_enter_c1(dev, state));
 
 	local_irq_disable();
-	current_thread_info()->status &= ~TS_POLLING;
-	/*
-	 * TS_POLLING-cleared state must be visible before we test
-	 * NEED_RESCHED:
-	 */
-	smp_mb();
+	if (cx->entry_method != ACPI_CSTATE_FFH) {
+		current_thread_info()->status &= ~TS_POLLING;
+		/*
+		 * TS_POLLING-cleared state must be visible before we test
+		 * NEED_RESCHED:
+		 */
+		smp_mb();
+	}
 
 	if (unlikely(need_resched())) {
 		current_thread_info()->status |= TS_POLLING;
···
 	}
 
 	local_irq_disable();
-	current_thread_info()->status &= ~TS_POLLING;
-	/*
-	 * TS_POLLING-cleared state must be visible before we test
-	 * NEED_RESCHED:
-	 */
-	smp_mb();
+	if (cx->entry_method != ACPI_CSTATE_FFH) {
+		current_thread_info()->status &= ~TS_POLLING;
+		/*
+		 * TS_POLLING-cleared state must be visible before we test
+		 * NEED_RESCHED:
+		 */
+		smp_mb();
+	}
 
 	if (unlikely(need_resched())) {
 		current_thread_info()->status |= TS_POLLING;

drivers/acpi/processor_pdc.c

···
 	return status;
 }
 
+static int early_pdc_done;
+
 void acpi_processor_set_pdc(acpi_handle handle)
 {
 	struct acpi_object_list *obj_list;
 
 	if (arch_has_acpi_pdc() == false)
+		return;
+
+	if (early_pdc_done)
 		return;
 
 	obj_list = acpi_processor_alloc_pdc();
···
 	early_pdc_optin = 1;
 	return 0;
 }
+
+static int param_early_pdc_optin(char *s)
+{
+	early_pdc_optin = 1;
+	return 1;
+}
+__setup("acpi_early_pdc_eval", param_early_pdc_optin);
 
 static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {
 	{
···
 	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
 			    early_init_pdc, NULL, NULL, NULL);
+
+	early_pdc_done = 1;
 }

drivers/acpi/processor_perflib.c

···
 	if (result)
 		goto update_bios;
 
-	return 0;
+	/* We need to call _PPC once when cpufreq starts */
+	if (ignore_ppc != 1)
+		result = acpi_processor_get_platform_limit(pr);
+
+	return result;
 
 	/*
 	 * Having _PPC but missing frequencies (_PSS, _PCT) is a very good hint that

drivers/acpi/scan.c

···
 
 	if (child)
 		*child = device;
-	return 0;
+
+	if (device)
+		return 0;
+	else
+		return -ENODEV;
 }
+
+/*
+ * acpi_bus_add and acpi_bus_start
+ *
+ * scan a given ACPI tree and (probably recently hot-plugged)
+ * create and add or starts found devices.
+ *
+ * If no devices were found -ENODEV is returned which does not
+ * mean that this is a real error, there just have been no suitable
+ * ACPI objects in the table trunk from which the kernel could create
+ * a device and add/start an appropriate driver.
+ */
 
 int
 acpi_bus_add(struct acpi_device **child,
···
 	memset(&ops, 0, sizeof(ops));
 	ops.acpi_op_add = 1;
 
-	acpi_bus_scan(handle, &ops, child);
-	return 0;
+	return acpi_bus_scan(handle, &ops, child);
 }
 EXPORT_SYMBOL(acpi_bus_add);
 
···
 {
 	struct acpi_bus_ops ops;
 
+	if (!device)
+		return -EINVAL;
+
 	memset(&ops, 0, sizeof(ops));
 	ops.acpi_op_start = 1;
 
-	acpi_bus_scan(device->handle, &ops, NULL);
-	return 0;
+	return acpi_bus_scan(device->handle, &ops, NULL);
 }
 EXPORT_SYMBOL(acpi_bus_start);
 

drivers/acpi/tables.c

···
 	unsigned long table_end;
 	acpi_size tbl_size;
 
-	if (acpi_disabled)
+	if (acpi_disabled && !acpi_ht)
 		return -ENODEV;
 
 	if (!handler)
···
 	struct acpi_table_header *table = NULL;
 	acpi_size tbl_size;
 
-	if (acpi_disabled)
+	if (acpi_disabled && !acpi_ht)
 		return -ENODEV;
 
 	if (!handler)

drivers/ata/ahci.c

···
 	ahci_save_initial_config(pdev, hpriv);
 
 	/* prepare host */
-	if (hpriv->cap & HOST_CAP_NCQ)
-		pi.flags |= ATA_FLAG_NCQ | ATA_FLAG_FPDMA_AA;
+	if (hpriv->cap & HOST_CAP_NCQ) {
+		pi.flags |= ATA_FLAG_NCQ;
+		/* Auto-activate optimization is supposed to be supported on
+		   all AHCI controllers indicating NCQ support, but it seems
+		   to be broken at least on some NVIDIA MCP79 chipsets.
+		   Until we get info on which NVIDIA chipsets don't have this
+		   issue, if any, disable AA on all NVIDIA AHCIs. */
+		if (pdev->vendor != PCI_VENDOR_ID_NVIDIA)
+			pi.flags |= ATA_FLAG_FPDMA_AA;
+	}
 
 	if (hpriv->cap & HOST_CAP_PMP)
 		pi.flags |= ATA_FLAG_PMP;

drivers/base/class.c

···
 	else
 		pr_debug("class '%s' does not have a release() function, "
 			 "be careful\n", class->name);
+
+	kfree(cp);
 }
 
 static struct sysfs_ops class_sysfs_ops = {

drivers/block/virtio_blk.c

···
 static int __devinit virtblk_probe(struct virtio_device *vdev)
 {
 	struct virtio_blk *vblk;
+	struct request_queue *q;
 	int err;
 	u64 cap;
-	u32 v;
-	u32 blk_size, sg_elems;
+	u32 v, blk_size, sg_elems, opt_io_size;
+	u16 min_io_size;
+	u8 physical_block_exp, alignment_offset;
 
 	if (index_to_minor(index) >= 1 << MINORBITS)
 		return -ENOSPC;
···
 		goto out_mempool;
 	}
 
-	vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
-	if (!vblk->disk->queue) {
+	q = vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
+	if (!q) {
 		err = -ENOMEM;
 		goto out_put_disk;
 	}
 
-	vblk->disk->queue->queuedata = vblk;
+	q->queuedata = vblk;
 
 	if (index < 26) {
 		sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
···
 
 	/* If barriers are supported, tell block layer that queue is ordered */
 	if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
-		blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_DRAIN_FLUSH,
+		blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH,
 				  virtblk_prepare_flush);
 	else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
-		blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
+		blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL);
 
 	/* If disk is read-only in the host, the guest should obey */
 	if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))
···
 	set_capacity(vblk->disk, cap);
 
 	/* We can handle whatever the host told us to handle. */
-	blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2);
-	blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2);
+	blk_queue_max_phys_segments(q, vblk->sg_elems-2);
+	blk_queue_max_hw_segments(q, vblk->sg_elems-2);
 
 	/* No need to bounce any requests */
-	blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY);
+	blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
 
 	/* No real sector limit. */
-	blk_queue_max_sectors(vblk->disk->queue, -1U);
+	blk_queue_max_sectors(q, -1U);
 
 	/* Host can optionally specify maximum segment size and number of
 	 * segments. */
···
 				offsetof(struct virtio_blk_config, size_max),
 				&v);
 	if (!err)
-		blk_queue_max_segment_size(vblk->disk->queue, v);
+		blk_queue_max_segment_size(q, v);
 	else
-		blk_queue_max_segment_size(vblk->disk->queue, -1U);
+		blk_queue_max_segment_size(q, -1U);
 
 	/* Host can optionally specify the block size of the device */
 	err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE,
 				offsetof(struct virtio_blk_config, blk_size),
 				&blk_size);
 	if (!err)
-		blk_queue_logical_block_size(vblk->disk->queue, blk_size);
+		blk_queue_logical_block_size(q, blk_size);
+	else
+		blk_size = queue_logical_block_size(q);
+
+	/* Use topology information if available */
+	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+			offsetof(struct virtio_blk_config, physical_block_exp),
+			&physical_block_exp);
+	if (!err && physical_block_exp)
+		blk_queue_physical_block_size(q,
+				blk_size * (1 << physical_block_exp));
+
+	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+			offsetof(struct virtio_blk_config, alignment_offset),
+			&alignment_offset);
+	if (!err && alignment_offset)
+		blk_queue_alignment_offset(q, blk_size * alignment_offset);
+
+	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+			offsetof(struct virtio_blk_config, min_io_size),
+			&min_io_size);
+	if (!err && min_io_size)
+		blk_queue_io_min(q, blk_size * min_io_size);
+
+	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+			offsetof(struct virtio_blk_config, opt_io_size),
+			&opt_io_size);
+	if (!err && opt_io_size)
+		blk_queue_io_opt(q, blk_size * opt_io_size);
+
 
 	add_disk(vblk->disk);
 	return 0;
···
 static unsigned int features[] = {
 	VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX,
 	VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE,
-	VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH
+	VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY
 };
 
 /*

drivers/char/Kconfig

···
 	help
 	  Virtio console for use with lguest and other hypervisors.
 
+	  Also serves as a general-purpose serial device for data
+	  transfer between the guest and host.  Character devices at
+	  /dev/vportNpn will be created when corresponding ports are
+	  found, where N is the device number and n is the port number
+	  within that device.  If specified by the host, a sysfs
+	  attribute called 'name' will be populated with a name for
+	  the port which can be used by udev scripts to create a
+	  symlink to the device.
 
 config HVCS
 	tristate "IBM Hypervisor Virtual Console Server support"

drivers/char/hvc_beat.c

···
 
 static int __init hvc_beat_console_init(void)
 {
-	if (hvc_beat_useit && machine_is_compatible("Beat")) {
+	if (hvc_beat_useit && of_machine_is_compatible("Beat")) {
 		hvc_instantiate(0, 0, &hvc_beat_get_put_ops);
 	}
 	return 0;

drivers/char/virtio_console.c

···
-/*D:300
- * The Guest console driver
- *
- * Writing console drivers is one of the few remaining Dark Arts in Linux.
- * Fortunately for us, the path of virtual consoles has been well-trodden by
- * the PowerPC folks, who wrote "hvc_console.c" to generically support any
- * virtual console.  We use that infrastructure which only requires us to write
- * the basic put_chars and get_chars functions and call the right register
- * functions.
- :*/
-
-/*M:002 The console can be flooded: while the Guest is processing input the
- * Host can send more.  Buffering in the Host could alleviate this, but it is a
- * difficult problem in general. :*/
-/* Copyright (C) 2006, 2007 Rusty Russell, IBM Corporation
+/*
+ * Copyright (C) 2006, 2007, 2009 Rusty Russell, IBM Corporation
+ * Copyright (C) 2009, 2010 Red Hat, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
···
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+#include <linux/cdev.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
 #include <linux/err.h>
+#include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/list.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
 #include <linux/virtio.h>
 #include <linux/virtio_console.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
 #include "hvc_console.h"
 
-/*D:340 These represent our input and output console queues, and the virtio
- * operations for them. */
-static struct virtqueue *in_vq, *out_vq;
-static struct virtio_device *vdev;
-
-/* This is our input buffer, and how much data is left in it. */
-static unsigned int in_len;
-static char *in, *inbuf;
-
-/* The operations for our console. */
-static struct hv_ops virtio_cons;
-
-/* The hvc device */
-static struct hvc_struct *hvc;
-
-/*D:310 The put_chars() callback is pretty straightforward.
+/*
+ * This is a global struct for storing common data for all the devices
+ * this driver handles.
  *
- * We turn the characters into a scatter-gather list, add it to the output
- * queue and then kick the Host.  Then we sit here waiting for it to finish:
- * inefficient in theory, but in practice implementations will do it
- * immediately (lguest's Launcher does). */
-static int put_chars(u32 vtermno, const char *buf, int count)
+ * Mainly, it has a linked list for all the consoles in one place so
+ * that callbacks from hvc for get_chars(), put_chars() work properly
+ * across multiple devices and multiple ports per device.
+ */
+struct ports_driver_data {
+	/* Used for registering chardevs */
+	struct class *class;
+
+	/* Used for exporting per-port information to debugfs */
+	struct dentry *debugfs_dir;
+
+	/* Number of devices this driver is handling */
+	unsigned int index;
+
+	/*
+	 * This is used to keep track of the number of hvc consoles
+	 * spawned by this driver.  This number is given as the first
+	 * argument to hvc_alloc().  To correctly map an initial
+	 * console spawned via hvc_instantiate to the console being
+	 * hooked up via hvc_alloc, we need to pass the same vtermno.
+	 *
+	 * We also just assume the first console being initialised was
+	 * the first one that got used as the initial console.
+	 */
+	unsigned int next_vtermno;
+
+	/* All the console devices handled by this driver */
+	struct list_head consoles;
+};
+static struct ports_driver_data pdrvdata;
+
+DEFINE_SPINLOCK(pdrvdata_lock);
+
+/* This struct holds information that's relevant only for console ports */
+struct console {
+	/* We'll place all consoles in a list in the pdrvdata struct */
+	struct list_head list;
+
+	/* The hvc device associated with this console port */
+	struct hvc_struct *hvc;
+
+	/*
+	 * This number identifies the number that we used to register
+	 * with hvc in hvc_instantiate() and hvc_alloc(); this is the
+	 * number passed on by the hvc callbacks to us to
+	 * differentiate between the other console ports handled by
+	 * this driver
+	 */
+	u32 vtermno;
+};
+
+struct port_buffer {
+	char *buf;
+
+	/* size of the buffer in *buf above */
+	size_t size;
+
+	/* used length of the buffer */
+	size_t len;
+	/* offset in the buf from which to consume data */
+	size_t offset;
+};
+
+/*
+ * This is a per-device struct that stores data common to all the
+ * ports for that device (vdev->priv).
+ */
+struct ports_device {
+	/*
+	 * Workqueue handlers where we process deferred work after
+	 * notification
+	 */
+	struct work_struct control_work;
+	struct work_struct config_work;
+
+	struct list_head ports;
+
+	/* To protect the list of ports */
+	spinlock_t ports_lock;
+
+	/* To protect the vq operations for the control channel */
+	spinlock_t cvq_lock;
+
+	/* The current config space is stored here */
+	struct virtio_console_config config;
+
+	/* The virtio device we're associated with */
+	struct virtio_device *vdev;
+
+	/*
+	 * A couple of virtqueues for the control channel: one for
+	 * guest->host transfers, one for host->guest transfers
+	 */
+	struct virtqueue *c_ivq, *c_ovq;
+
+	/* Array of per-port IO virtqueues */
+	struct virtqueue **in_vqs, **out_vqs;
+
+	/* Used for numbering devices for sysfs and debugfs */
+	unsigned int drv_index;
+
+	/* Major number for this device.  Ports will be created as minors. */
+	int chr_major;
+};
+
+/* This struct holds the per-port data */
+struct port {
+	/* Next port in the list, head is in the ports_device */
+	struct list_head list;
+
+	/* Pointer to the parent virtio_console device */
+	struct ports_device *portdev;
+
+	/* The current buffer from which data has to be fed to readers */
+	struct port_buffer *inbuf;
+
+	/*
+	 * To protect the operations on the in_vq associated with this
+	 * port.  Has to be a spinlock because it can be called from
+	 * interrupt context (get_char()).
+	 */
+	spinlock_t inbuf_lock;
+
+	/* The IO vqs for this port */
+	struct virtqueue *in_vq, *out_vq;
+
+	/* File in the debugfs directory that exposes this port's information */
+	struct dentry *debugfs_file;
+
+	/*
+	 * The entries in this struct will be valid if this port is
+	 * hooked up to an hvc console
+	 */
+	struct console cons;
+
+	/* Each port associates with a separate char device */
+	struct cdev cdev;
+	struct device *dev;
+
+	/* A waitqueue for poll() or blocking read operations */
+	wait_queue_head_t waitqueue;
+
+	/* The 'name' of the port that we expose via sysfs properties */
+	char *name;
+
+	/* The 'id' to identify the port with the Host */
+	u32 id;
+
+	/* Is the host device open */
+	bool host_connected;
+
+	/* We should allow only one process to open a port */
+	bool guest_connected;
+};
+
+/* This is the very early arch-specified put chars function. */
+static int (*early_put_chars)(u32, const char *, int);
+
+static struct port *find_port_by_vtermno(u32 vtermno)
 {
-	struct scatterlist sg[1];
+	struct port *port;
+	struct console *cons;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdrvdata_lock, flags);
+	list_for_each_entry(cons, &pdrvdata.consoles, list) {
+		if (cons->vtermno == vtermno) {
+			port = container_of(cons, struct port, cons);
+			goto out;
+		}
+	}
+	port = NULL;
+out:
+	spin_unlock_irqrestore(&pdrvdata_lock, flags);
+	return port;
+}
+
+static struct port *find_port_by_id(struct ports_device *portdev, u32 id)
+{
+	struct port *port;
+	unsigned long flags;
+
+	spin_lock_irqsave(&portdev->ports_lock, flags);
+	list_for_each_entry(port, &portdev->ports, list)
+		if (port->id == id)
+			goto out;
+	port = NULL;
+out:
+	spin_unlock_irqrestore(&portdev->ports_lock, flags);
+
+	return port;
+}
+
+static struct port *find_port_by_vq(struct ports_device *portdev,
+				    struct virtqueue *vq)
+{
+	struct port *port;
+	unsigned long flags;
+
+	spin_lock_irqsave(&portdev->ports_lock, flags);
+	list_for_each_entry(port, &portdev->ports, list)
+		if (port->in_vq == vq || port->out_vq == vq)
+			goto out;
+	port = NULL;
+out:
+	spin_unlock_irqrestore(&portdev->ports_lock, flags);
+	return port;
+}
+
+static bool is_console_port(struct port *port)
+{
+	if (port->cons.hvc)
+		return true;
+	return false;
+}
+
+static inline bool use_multiport(struct ports_device *portdev)
+{
+	/*
+	 * This condition can be true when put_chars is called from
+	 * early_init
+	 */
+	if (!portdev->vdev)
+		return 0;
+	return portdev->vdev->features[0] & (1 << VIRTIO_CONSOLE_F_MULTIPORT);
+}
+
+static void free_buf(struct port_buffer *buf)
+{
+	kfree(buf->buf);
+	kfree(buf);
+}
+
+static struct port_buffer *alloc_buf(size_t buf_size)
+{
+	struct port_buffer *buf;
+
+	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+	if (!buf)
+		goto fail;
+	buf->buf = kzalloc(buf_size, GFP_KERNEL);
+	if (!buf->buf)
+		goto free_buf;
+	buf->len = 0;
+	buf->offset = 0;
+	buf->size = buf_size;
+	return buf;
+
+free_buf:
+	kfree(buf);
+fail:
+	return NULL;
+}
+
+/* Callers should take appropriate locks */
+static void *get_inbuf(struct port *port)
+{
+	struct port_buffer *buf;
+	struct virtqueue *vq;
 	unsigned int len;
 
-	/* This is a convenient routine to initialize a single-elem sg list */
-	sg_init_one(sg, buf, count);
-
-	/* add_buf wants a token to identify this buffer: we hand it any
-	 * non-NULL pointer, since there's only ever one buffer. */
-	if (out_vq->vq_ops->add_buf(out_vq, sg, 1, 0, (void *)1) >= 0) {
-		/* Tell Host to go! */
-		out_vq->vq_ops->kick(out_vq);
-		/* Chill out until it's done with the buffer. */
-		while (!out_vq->vq_ops->get_buf(out_vq, &len))
-			cpu_relax();
+	vq = port->in_vq;
+	buf = vq->vq_ops->get_buf(vq, &len);
+	if (buf) {
+		buf->len = len;
+		buf->offset = 0;
 	}
-
-	/* We're expected to return the amount of data we wrote: all of it. */
-	return count;
+	return buf;
 }
 
-/* Create a scatter-gather list representing our input buffer and put it in the
- * queue. */
-static void add_inbuf(void)
+/*
+ * Create a scatter-gather list representing our input buffer and put
+ * it in the queue.
+ *
+ * Callers should take appropriate locks.
+ */
+static int add_inbuf(struct virtqueue *vq, struct port_buffer *buf)
 {
 	struct scatterlist sg[1];
-	sg_init_one(sg, inbuf, PAGE_SIZE);
+	int ret;
 
-	/* We should always be able to add one buffer to an empty queue. */
-	if (in_vq->vq_ops->add_buf(in_vq, sg, 0, 1, inbuf) < 0)
-		BUG();
-	in_vq->vq_ops->kick(in_vq);
+	sg_init_one(sg, buf->buf, buf->size);
+
+	ret = vq->vq_ops->add_buf(vq, sg, 0, 1, buf);
+	vq->vq_ops->kick(vq);
+	return ret;
 }
 
-/*D:350 get_chars() is the callback from the hvc_console infrastructure when
- * an interrupt is received.
+/* Discard any unread data this port has. Callers lockers. */
+static void discard_port_data(struct port *port)
+{
+	struct port_buffer *buf;
+	struct virtqueue *vq;
+	unsigned int len;
+	int ret;
+
+	vq = port->in_vq;
+	if (port->inbuf)
+		buf = port->inbuf;
+	else
+		buf = vq->vq_ops->get_buf(vq, &len);
+
+	ret = 0;
+	while (buf) {
+		if (add_inbuf(vq, buf) < 0) {
+			ret++;
+			free_buf(buf);
+		}
+		buf = vq->vq_ops->get_buf(vq, &len);
+	}
+	port->inbuf = NULL;
+	if (ret)
+		dev_warn(port->dev, "Errors adding %d buffers back to vq\n",
+			 ret);
+}
+
+static bool port_has_data(struct port *port)
+{
+	unsigned long flags;
+	bool ret;
+
+	spin_lock_irqsave(&port->inbuf_lock, flags);
+	if (port->inbuf) {
+		ret = true;
+		goto out;
+	}
+	port->inbuf = get_inbuf(port);
+	if (port->inbuf) {
+		ret = true;
+		goto out;
+	}
+	ret = false;
+out:
+	spin_unlock_irqrestore(&port->inbuf_lock, flags);
+	return ret;
+}
+
+static ssize_t send_control_msg(struct port *port, unsigned int event,
+				unsigned int value)
+{
+	struct scatterlist sg[1];
+	struct virtio_console_control cpkt;
+	struct virtqueue *vq;
+	int len;
+
+	if (!use_multiport(port->portdev))
+		return 0;
+
+	cpkt.id = port->id;
+	cpkt.event = event;
+	cpkt.value = value;
+
+	vq = port->portdev->c_ovq;
+
+	sg_init_one(sg, &cpkt, sizeof(cpkt));
+	if (vq->vq_ops->add_buf(vq, sg, 1, 0, &cpkt) >= 0) {
+		vq->vq_ops->kick(vq);
+		while (!vq->vq_ops->get_buf(vq, &len))
+			cpu_relax();
+	}
+	return 0;
+}
+
+static ssize_t send_buf(struct port *port, void *in_buf, size_t in_count)
+{
+	struct scatterlist sg[1];
+	struct virtqueue *out_vq;
+	ssize_t ret;
+	unsigned int len;
+
+	out_vq = port->out_vq;
+
+	sg_init_one(sg, in_buf, in_count);
+	ret = out_vq->vq_ops->add_buf(out_vq, sg, 1, 0, in_buf);
+
+	/* Tell Host to go! */
+	out_vq->vq_ops->kick(out_vq);
+
+	if (ret < 0) {
+		len = 0;
+		goto fail;
+	}
+
+	/*
+	 * Wait till the host acknowledges it pushed out the data we
+	 * sent. Also ensure we return to userspace the number of
+	 * bytes that were successfully consumed by the host.
+	 */
+	while (!out_vq->vq_ops->get_buf(out_vq, &len))
+		cpu_relax();
+fail:
+	/* We're expected to return the amount of data we wrote */
+	return len;
+}
+
+/*
+ * Give out the data that's requested from the buffer that we have
+ * queued up.
+ */
+static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count,
+			    bool to_user)
+{
+	struct port_buffer *buf;
+	unsigned long flags;
+
+	if (!out_count || !port_has_data(port))
+		return 0;
+
+	buf = port->inbuf;
+	out_count = min(out_count, buf->len - buf->offset);
+
+	if (to_user) {
+		ssize_t ret;
+
+		ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
+		if (ret)
+			return -EFAULT;
+	} else {
+		memcpy(out_buf, buf->buf + buf->offset, out_count);
+	}
+
+	buf->offset += out_count;
+
+	if (buf->offset == buf->len) {
+		/*
+		 * We're done using all the data in this buffer.
+		 * Re-queue so that the Host can send us more data.
+		 */
+		spin_lock_irqsave(&port->inbuf_lock, flags);
+		port->inbuf = NULL;
+
+		if (add_inbuf(port->in_vq, buf) < 0)
+			dev_warn(port->dev, "failed add_buf\n");
+
+		spin_unlock_irqrestore(&port->inbuf_lock, flags);
+	}
+	/* Return the number of bytes actually copied */
+	return out_count;
+}
+
+/* The condition that must be true for polling to end */
+static bool wait_is_over(struct port *port)
+{
+	return port_has_data(port) || !port->host_connected;
+}
+
+static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
+			      size_t count, loff_t *offp)
+{
+	struct port *port;
+	ssize_t ret;
+
+	port = filp->private_data;
+
+	if (!port_has_data(port)) {
+		/*
+		 * If nothing's connected on the host just return 0 in
+		 * case of list_empty; this tells the userspace app
+		 * that there's no connection
+		 */
+		if (!port->host_connected)
+			return 0;
+		if (filp->f_flags & O_NONBLOCK)
+			return -EAGAIN;
+
+		ret = wait_event_interruptible(port->waitqueue,
+					       wait_is_over(port));
+		if (ret < 0)
+			return ret;
+	}
+	/*
+	 * We could've received a disconnection message while we were
+	 * waiting for more data.
+	 *
+	 * This check is not clubbed in the if() statement above as we
+	 * might receive some data as well as the host could get
+	 * disconnected after we got woken up from our wait.  So we
+	 * really want to give off whatever data we have and only then
+	 * check for host_connected.
+	 */
+	if (!port_has_data(port) && !port->host_connected)
+		return 0;
+
+	return fill_readbuf(port, ubuf, count, true);
+}
+
+static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
+			       size_t count, loff_t *offp)
+{
+	struct port *port;
+	char *buf;
+	ssize_t ret;
+
+	port = filp->private_data;
+
+	count = min((size_t)(32 * 1024), count);
+
+	buf = kmalloc(count, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = copy_from_user(buf, ubuf, count);
+	if (ret) {
+		ret = -EFAULT;
+		goto free_buf;
+	}
+
+	ret = send_buf(port, buf, count);
+free_buf:
+	kfree(buf);
+	return ret;
+}
+
+static unsigned int port_fops_poll(struct file *filp, poll_table *wait)
+{
+	struct port *port;
+	unsigned int ret;
+
+	port = filp->private_data;
+	poll_wait(filp, &port->waitqueue, wait);
+
+	ret = 0;
+	if (port->inbuf)
+		ret |= POLLIN | POLLRDNORM;
+	if (port->host_connected)
+		ret |= POLLOUT;
+	if (!port->host_connected)
+		ret |= POLLHUP;
+
+	return ret;
+}
+
+static int port_fops_release(struct inode *inode, struct file *filp)
+{
+	struct port *port;
+
+	port = filp->private_data;
+
+	/* Notify host of port being closed */
+	send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 0);
+
+	spin_lock_irq(&port->inbuf_lock);
+	port->guest_connected = false;
+
+	discard_port_data(port);
+
+	spin_unlock_irq(&port->inbuf_lock);
+
+	return 0;
+}
+
+static int port_fops_open(struct inode *inode, struct file *filp)
+{
+	struct cdev *cdev = inode->i_cdev;
+	struct port *port;
+
+	port = container_of(cdev, struct port, cdev);
+	filp->private_data = port;
+
+	/*
+	 * Don't allow opening of console port devices -- that's done
+	 * via /dev/hvc
+	 */
+	if (is_console_port(port))
+		return -ENXIO;
+
+	/* Allow only one process to open a particular port at a time */
+	spin_lock_irq(&port->inbuf_lock);
+	if (port->guest_connected) {
+		spin_unlock_irq(&port->inbuf_lock);
+		return -EMFILE;
+	}
+
+	port->guest_connected = true;
+	spin_unlock_irq(&port->inbuf_lock);
+
+	/* Notify host of port being opened */
+	send_control_msg(filp->private_data, VIRTIO_CONSOLE_PORT_OPEN, 1);
+
+	return 0;
+}
+
+/*
+ * The file operations that we support: programs in the guest can open
+ * a console device, read from it, write to it, poll for data and
+ * close it.  The devices are at
+ *   /dev/vport<device number>p<port number>
+ */
+static const struct file_operations port_fops = {
+	.owner = THIS_MODULE,
+	.open  = port_fops_open,
+	.read  = port_fops_read,
+	.write = port_fops_write,
+	.poll  = port_fops_poll,
+	.release = port_fops_release,
+};
+
+/*
+ * The put_chars() callback is pretty straightforward.
  *
- * Most of the code deals with the fact that the hvc_console() infrastructure
- * only asks us for 16 bytes at a time.  We keep in_offset and in_used fields
- * for partially-filled buffers. */
+ * We turn the characters into a scatter-gather list, add it to the
+ * output queue and then kick the Host.  Then we sit here waiting for
+ * it to finish: inefficient in theory, but in practice
+ * implementations will do it immediately (lguest's Launcher does).
+ */
+static int put_chars(u32 vtermno, const char *buf, int count)
+{
+	struct port *port;
+
+	port = find_port_by_vtermno(vtermno);
+	if (!port)
+		return 0;
+
+	if (unlikely(early_put_chars))
+		return early_put_chars(vtermno, buf, count);
+
+	return send_buf(port, (void *)buf, count);
+}
+
+/*
+ * get_chars() is the callback from the hvc_console infrastructure
+ * when an interrupt is received.
+ *
+ * We call out to fill_readbuf that gets us the required data from the
+ * buffers that are queued up.
+ */
 static int get_chars(u32 vtermno, char *buf, int count)
 {
+	struct port *port;
+
+	port = find_port_by_vtermno(vtermno);
+	if (!port)
+		return 0;
+
 	/* If we don't have an input queue yet, we can't get input. */
-	BUG_ON(!in_vq);
+	BUG_ON(!port->in_vq);
 
-	/* No buffer?  Try to get one. */
-	if (!in_len) {
-		in = in_vq->vq_ops->get_buf(in_vq, &in_len);
-		if (!in)
-			return 0;
-	}
-
-	/* You want more than we have to give?  Well, try wanting less! */
-	if (in_len < count)
-		count = in_len;
-
-	/* Copy across to their buffer and increment offset. */
-	memcpy(buf, in, count);
-	in += count;
-	in_len -= count;
-
-	/* Finished?  Re-register buffer so Host will use it again. */
-	if (in_len == 0)
-		add_inbuf();
-
-	return count;
-}
-/*:*/
-
-/*D:320 Console drivers are initialized very early so boot messages can go out,
- * so we do things slightly differently from the generic virtio initialization
- * of the net and block drivers.
- *
- * At this stage, the console is output-only.  It's too early to set up a
- * virtqueue, so we let the drivers do some boutique early-output thing. */
-int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int))
-{
-	virtio_cons.put_chars = put_chars;
-	return hvc_instantiate(0, 0, &virtio_cons);
+	return fill_readbuf(port, buf, count, false);
 }
 
-/*
- * virtio console configuration. This supports:
- * - console resize
- */
-static void virtcons_apply_config(struct virtio_device *dev)
+static void resize_console(struct port *port)
 {
+	struct virtio_device *vdev;
 	struct winsize ws;
 
-	if (virtio_has_feature(dev, VIRTIO_CONSOLE_F_SIZE)) {
-		dev->config->get(dev,
-				 offsetof(struct virtio_console_config, cols),
-				 &ws.ws_col, sizeof(u16));
-		dev->config->get(dev,
-				 offsetof(struct virtio_console_config, rows),
-				 &ws.ws_row, sizeof(u16));
-		hvc_resize(hvc, ws);
+	vdev = port->portdev->vdev;
+	if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_SIZE)) {
+		vdev->config->get(vdev,
+				  offsetof(struct virtio_console_config, cols),
+				  &ws.ws_col, sizeof(u16));
+		vdev->config->get(vdev,
+				  offsetof(struct virtio_console_config, rows),
+				  &ws.ws_row, sizeof(u16));
+		hvc_resize(port->cons.hvc, ws);
 	}
 }
 
-/*
- * we support only one console, the hvc struct is a global var
- * We set the configuration at this point, since we now have a tty
- */
+/* We set the configuration at this point, since we now have a tty */
 static int notifier_add_vio(struct hvc_struct *hp, int data)
 {
+	struct port *port;
+
+	port = find_port_by_vtermno(hp->vtermno);
+	if (!port)
+		return -EINVAL;
+
 	hp->irq_requested = 1;
-	virtcons_apply_config(vdev);
+	resize_console(port);
 
 	return 0;
 }
···
 	hp->irq_requested = 0;
 }
 
-static void hvc_handle_input(struct virtqueue *vq)
+/* The operations for console ports. */
+static const struct hv_ops hv_ops = {
+	.get_chars = get_chars,
+	.put_chars = put_chars,
+	.notifier_add = notifier_add_vio,
+	.notifier_del = notifier_del_vio,
+	.notifier_hangup = notifier_del_vio,
+};
+
+/*
+ * Console drivers are initialized very early so boot messages can go
+ * out, so we do things slightly differently from the generic virtio
+ * initialization of the net and block drivers.
+ *
+ * At this stage, the console is output-only.  It's too early to set
+ * up a virtqueue, so we let the drivers do some boutique early-output
+ * thing.
+ */
+int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int))
 {
-	if (hvc_poll(hvc))
+	early_put_chars = put_chars;
+	return hvc_instantiate(0, 0, &hv_ops);
+}
+
+int init_port_console(struct port *port)
+{
+	int ret;
+
+	/*
+	 * The Host's telling us this port is a console port.  Hook it
+	 * up with an hvc console.
+	 *
+	 * To set up and manage our virtual console, we call
+	 * hvc_alloc().
+	 *
+	 * The first argument of hvc_alloc() is the virtual console
+	 * number.  The second argument is the parameter for the
+	 * notification mechanism (like irq number).  We currently
+	 * leave this as zero, virtqueues have implicit notifications.
+	 *
+	 * The third argument is a "struct hv_ops" containing the
+	 * put_chars() get_chars(), notifier_add() and notifier_del()
+	 * pointers.  The final argument is the output buffer size: we
+	 * can do any size, so we put PAGE_SIZE here.
+	 */
+	port->cons.vtermno = pdrvdata.next_vtermno;
+
+	port->cons.hvc = hvc_alloc(port->cons.vtermno, 0, &hv_ops, PAGE_SIZE);
+	if (IS_ERR(port->cons.hvc)) {
+		ret = PTR_ERR(port->cons.hvc);
+		dev_err(port->dev,
+			"error %d allocating hvc for port\n", ret);
+		port->cons.hvc = NULL;
+		return ret;
+	}
+	spin_lock_irq(&pdrvdata_lock);
+	pdrvdata.next_vtermno++;
+	list_add_tail(&port->cons.list, &pdrvdata.consoles);
+	spin_unlock_irq(&pdrvdata_lock);
+	port->guest_connected = true;
+
+	/* Notify host of port being opened */
+	send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 1);
+
+	return 0;
+}
+
+static ssize_t show_port_name(struct device *dev,
+			      struct device_attribute *attr, char *buffer)
+{
+	struct port *port;
+
+	port = dev_get_drvdata(dev);
+
+	return sprintf(buffer, "%s\n", port->name);
+}
+
+static DEVICE_ATTR(name, S_IRUGO, show_port_name, NULL);
+
+static struct attribute *port_sysfs_entries[] = {
+	&dev_attr_name.attr,
+	NULL
+};
+
+static struct attribute_group port_attribute_group = {
+	.name = NULL,		/* put in device directory */
+	.attrs = port_sysfs_entries,
+};
+
+static int debugfs_open(struct inode *inode, struct file *filp)
+{
+	filp->private_data = inode->i_private;
+	return 0;
+}
+
+static ssize_t debugfs_read(struct file *filp, char __user *ubuf,
+			    size_t count, loff_t *offp)
+{
+	struct port *port;
+	char *buf;
+	ssize_t ret, out_offset, out_count;
+
+	out_count = 1024;
+	buf = kmalloc(out_count, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	port = filp->private_data;
+	out_offset = 0;
+	out_offset += snprintf(buf + out_offset, out_count,
+			       "name: %s\n", port->name ? port->name : "");
+	out_offset += snprintf(buf + out_offset, out_count - out_offset,
+			       "guest_connected: %d\n", port->guest_connected);
+	out_offset += snprintf(buf + out_offset, out_count - out_offset,
+			       "host_connected: %d\n", port->host_connected);
+	out_offset += snprintf(buf + out_offset, out_count - out_offset,
+			       "is_console: %s\n",
+			       is_console_port(port) ? "yes" : "no");
+	out_offset += snprintf(buf + out_offset, out_count - out_offset,
+			       "console_vtermno: %u\n", port->cons.vtermno);
+
+	ret = simple_read_from_buffer(ubuf, count, offp, buf, out_offset);
+	kfree(buf);
+	return ret;
+}
+
+static const struct file_operations port_debugfs_ops = {
+	.owner = THIS_MODULE,
+	.open  = debugfs_open,
+	.read  = debugfs_read,
+};
+
+/* Remove all port-specific data. */
+static int remove_port(struct port *port)
+{
+	struct port_buffer *buf;
+
+	spin_lock_irq(&port->portdev->ports_lock);
+	list_del(&port->list);
+	spin_unlock_irq(&port->portdev->ports_lock);
+
+	if (is_console_port(port)) {
+		spin_lock_irq(&pdrvdata_lock);
+		list_del(&port->cons.list);
+		spin_unlock_irq(&pdrvdata_lock);
+		hvc_remove(port->cons.hvc);
+	}
+	if (port->guest_connected)
+		send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 0);
+
+	sysfs_remove_group(&port->dev->kobj, &port_attribute_group);
+	device_destroy(pdrvdata.class, port->dev->devt);
+	cdev_del(&port->cdev);
+
+	/* Remove unused data this port might have received. */
+	discard_port_data(port);
+
+	/* Remove buffers we queued up for the Host to send us data in. */
+	while ((buf = port->in_vq->vq_ops->detach_unused_buf(port->in_vq)))
+		free_buf(buf);
+
+	kfree(port->name);
+
+	debugfs_remove(port->debugfs_file);
+
+	kfree(port);
+	return 0;
+}
+
+/* Any private messages that the Host and Guest want to share */
+static void handle_control_message(struct ports_device *portdev,
+				   struct port_buffer *buf)
+{
+	struct virtio_console_control *cpkt;
+	struct port *port;
+	size_t name_size;
+	int err;
+
+	cpkt = (struct virtio_console_control *)(buf->buf + buf->offset);
+
+	port = find_port_by_id(portdev, cpkt->id);
+	if (!port) {
+		/* No valid header at start of buffer.  Drop it. */
+		dev_dbg(&portdev->vdev->dev,
+			"Invalid index %u in control packet\n", cpkt->id);
+		return;
+	}
+
+	switch (cpkt->event) {
+	case VIRTIO_CONSOLE_CONSOLE_PORT:
+		if (!cpkt->value)
+			break;
+		if (is_console_port(port))
+			break;
+
+		init_port_console(port);
+		/*
+		 * Could remove the port here in case init fails - but
+		 * have to notify the host first.
+		 */
+		break;
+	case VIRTIO_CONSOLE_RESIZE:
+		if (!is_console_port(port))
+			break;
+		port->cons.hvc->irq_requested = 1;
+		resize_console(port);
+		break;
+	case VIRTIO_CONSOLE_PORT_OPEN:
+		port->host_connected = cpkt->value;
+		wake_up_interruptible(&port->waitqueue);
+		break;
+	case VIRTIO_CONSOLE_PORT_NAME:
+		/*
+		 * Skip the size of the header and the cpkt to get the size
+		 * of the name that was sent
+		 */
+		name_size = buf->len - buf->offset - sizeof(*cpkt) + 1;
+
+		port->name = kmalloc(name_size, GFP_KERNEL);
+		if (!port->name) {
+			dev_err(port->dev,
+				"Not enough space to store port name\n");
+			break;
+		}
+		strncpy(port->name, buf->buf + buf->offset + sizeof(*cpkt),
+			name_size - 1);
+		port->name[name_size - 1] = 0;
+
+		/*
+		 * Since we only have one sysfs attribute, 'name',
+		 * create it only if we have a name for the port.
+		 */
+		err = sysfs_create_group(&port->dev->kobj,
+					 &port_attribute_group);
+		if (err)
+			dev_err(port->dev,
+				"Error %d creating sysfs device attributes\n",
+				err);
+
+		break;
+	case VIRTIO_CONSOLE_PORT_REMOVE:
+		/*
+		 * Hot unplug the port.  We don't decrement nr_ports
+		 * since we don't want to deal with extra complexities
+		 * of using the lowest-available port id: We can just
+		 * pick up the nr_ports number as the id and not have
+		 * userspace send it to us.  This helps us in two
+		 * ways:
+		 *
+		 * - We don't need to have a 'port_id' field in the
+		 *   config space when a port is hot-added.  This is a
+		 *   good thing as we might queue up multiple hotplug
+		 *   requests issued in our workqueue.
+		 *
+		 * - Another way to deal with this would have been to
+		 *   use a bitmap of the active ports and select the
+		 *   lowest non-active port from that map.  That
+		 *   bloats the already tight config space and we
+		 *   would end up artificially limiting the
+		 *   max. number of ports to sizeof(bitmap).  Right
+		 *   now we can support 2^32 ports (as the port id is
+		 *   stored in a u32 type).
+		 *
+		 */
+		remove_port(port);
+		break;
+	}
+}
+
+static void control_work_handler(struct work_struct *work)
+{
+	struct ports_device *portdev;
+	struct virtqueue *vq;
+	struct port_buffer *buf;
+	unsigned int len;
+
+	portdev = container_of(work, struct ports_device, control_work);
+	vq = portdev->c_ivq;
+
+	spin_lock(&portdev->cvq_lock);
+	while ((buf = vq->vq_ops->get_buf(vq, &len))) {
+		spin_unlock(&portdev->cvq_lock);
+
+		buf->len = len;
+		buf->offset = 0;
+
+		handle_control_message(portdev, buf);
+
+		spin_lock(&portdev->cvq_lock);
+		if (add_inbuf(portdev->c_ivq, buf) < 0) {
+			dev_warn(&portdev->vdev->dev,
+				 "Error adding buffer to queue\n");
+			free_buf(buf);
+		}
+	}
+	spin_unlock(&portdev->cvq_lock);
+}
+
+static void in_intr(struct virtqueue *vq)
+{
+	struct port *port;
+	unsigned long flags;
+
+	port = find_port_by_vq(vq->vdev->priv, vq);
+	if (!port)
+		return;
+
+	spin_lock_irqsave(&port->inbuf_lock, flags);
+	if (!port->inbuf)
+		port->inbuf = get_inbuf(port);
+
+	/*
+	 * Don't queue up data when port is closed.  This condition
+	 * can be reached when a console port is not yet connected (no
+	 * tty is spawned) and the host sends out data to console
+	 * ports.  For generic serial ports, the host won't
+	 * (shouldn't) send data till the guest is connected.
+	 */
+	if (!port->guest_connected)
+		discard_port_data(port);
+
+	spin_unlock_irqrestore(&port->inbuf_lock, flags);
+
+	wake_up_interruptible(&port->waitqueue);
+
+	if (is_console_port(port) && hvc_poll(port->cons.hvc))
 		hvc_kick();
 }
 
-/*D:370 Once we're further in boot, we get probed like any other virtio device.
- * At this stage we set up the output virtqueue.
- *
- * To set up and manage our virtual console, we call hvc_alloc().  Since we
- * never remove the console device we never need this pointer again.
- *
- * Finally we put our input buffer in the input queue, ready to receive. */
-static int __devinit virtcons_probe(struct virtio_device *dev)
+static void control_intr(struct virtqueue *vq)
 {
-	vq_callback_t *callbacks[] = { hvc_handle_input, NULL};
-	const char *names[] = { "input", "output" };
-	struct virtqueue *vqs[2];
+	struct ports_device *portdev;
+
+	portdev = vq->vdev->priv;
+	schedule_work(&portdev->control_work);
+}
+
+static void config_intr(struct virtio_device *vdev)
+{
+	struct ports_device *portdev;
+
+	portdev = vdev->priv;
+	if (use_multiport(portdev)) {
+		/* Handle port hot-add */
+		schedule_work(&portdev->config_work);
+	}
+	/*
+	 * We'll use this way of resizing only for legacy support.
+	 * For newer userspace (VIRTIO_CONSOLE_F_MULTPORT+), use
+	 * control messages to indicate console size changes so that
+	 * it can be done per-port
+	 */
+	resize_console(find_port_by_id(portdev, 0));
+}
+
+static unsigned int fill_queue(struct virtqueue *vq, spinlock_t *lock)
+{
+	struct port_buffer *buf;
+	unsigned int ret;
 	int err;
 
-	vdev = dev;
+	ret = 0;
+	do {
+		buf = alloc_buf(PAGE_SIZE);
+		if (!buf)
+			break;
 
-	/* This is the scratch page we use to receive console input */
-	inbuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!inbuf) {
+		spin_lock_irq(lock);
+		err = add_inbuf(vq, buf);
+		if (err < 0) {
+			spin_unlock_irq(lock);
+			free_buf(buf);
+			break;
+		}
+		ret++;
+		spin_unlock_irq(lock);
+	} while (err > 0);
+
+	return ret;
+}
+
+static int add_port(struct ports_device *portdev, u32 id)
+{
+	char debugfs_name[16];
+	struct port *port;
+	struct port_buffer *buf;
+	dev_t devt;
+	int err;
+
+	port = kmalloc(sizeof(*port), GFP_KERNEL);
+	if (!port) {
 		err = -ENOMEM;
 		goto fail;
 	}
 
-	/* Find the queues. */
-	/* FIXME: This is why we want to wean off hvc: we do nothing
-	 * when input comes in. */
-	err = vdev->config->find_vqs(vdev, 2, vqs, callbacks, names);
-	if (err)
-		goto free;
+	port->portdev = portdev;
+	port->id = id;
 
-	in_vq = vqs[0];
-	out_vq = vqs[1];
+	port->name = NULL;
+	port->inbuf = NULL;
+	port->cons.hvc = NULL;
 
-	/* Start using the new console output. */
-	virtio_cons.get_chars = get_chars;
-	virtio_cons.put_chars = put_chars;
-	virtio_cons.notifier_add = notifier_add_vio;
-	virtio_cons.notifier_del = notifier_del_vio;
-	virtio_cons.notifier_hangup = notifier_del_vio;
+	port->host_connected = port->guest_connected = false;
 
-	/* The first argument of hvc_alloc() is the virtual console number, so
-	 * we use zero.  The second argument is the parameter for the
-	 * notification mechanism (like irq number). We currently leave this
-	 * as zero, virtqueues have implicit notifications.
-	 *
-	 * The third argument is a "struct hv_ops" containing the put_chars()
-	 * get_chars(), notifier_add() and notifier_del() pointers.
-	 * The final argument is the output buffer size: we can do any size,
-	 * so we put PAGE_SIZE here. */
-	hvc = hvc_alloc(0, 0, &virtio_cons, PAGE_SIZE);
-	if (IS_ERR(hvc)) {
-		err = PTR_ERR(hvc);
-		goto free_vqs;
+	port->in_vq = portdev->in_vqs[port->id];
+	port->out_vq = portdev->out_vqs[port->id];
+
+	cdev_init(&port->cdev, &port_fops);
+
+	devt = MKDEV(portdev->chr_major, id);
+	err = cdev_add(&port->cdev, devt, 1);
+	if (err < 0) {
+		dev_err(&port->portdev->vdev->dev,
+			"Error %d adding cdev for port %u\n", err, id);
+		goto free_port;
+	}
+	port->dev = device_create(pdrvdata.class, &port->portdev->vdev->dev,
+				  devt, port, "vport%up%u",
+				  port->portdev->drv_index, id);
+	if (IS_ERR(port->dev)) {
+		err = PTR_ERR(port->dev);
+		dev_err(&port->portdev->vdev->dev,
+			"Error %d creating device for port %u\n",
+			err, id);
+		goto free_cdev;
 	}
 
-	/* Register the input buffer the first time. */
-	add_inbuf();
+	spin_lock_init(&port->inbuf_lock);
+	init_waitqueue_head(&port->waitqueue);
+
+	/* Fill the in_vq with buffers so the host can send us data. */
+	err = fill_queue(port->in_vq, &port->inbuf_lock);
+	if (!err) {
+		dev_err(port->dev, "Error allocating inbufs\n");
+		err = -ENOMEM;
+		goto free_device;
+	}
+
+	/*
+	 * If we're not using multiport support, this has to be a console port
+	 */
+	if (!use_multiport(port->portdev)) {
+		err = init_port_console(port);
+		if (err)
+			goto free_inbufs;
+	}
+
+	spin_lock_irq(&portdev->ports_lock);
+	list_add_tail(&port->list, &port->portdev->ports);
+	spin_unlock_irq(&portdev->ports_lock);
+
+	/*
+	 * Tell the Host we're set so that it can send us various
+	 * configuration parameters for this port (eg, port name,
+	 * caching, whether this is a console port, etc.)
+	 */
+	send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
+
+	if (pdrvdata.debugfs_dir) {
+		/*
+		 * Finally, create the debugfs file that we can use to
+		 * inspect a port's state at any time
+		 */
+		sprintf(debugfs_name, "vport%up%u",
+			port->portdev->drv_index, id);
+		port->debugfs_file = debugfs_create_file(debugfs_name, 0444,
+							 pdrvdata.debugfs_dir,
+							 port,
+							 &port_debugfs_ops);
+	}
+	return 0;
+
+free_inbufs:
+	while ((buf = port->in_vq->vq_ops->detach_unused_buf(port->in_vq)))
+		free_buf(buf);
+free_device:
+	device_destroy(pdrvdata.class, port->dev->devt);
+free_cdev:
+	cdev_del(&port->cdev);
+free_port:
+	kfree(port);
+fail:
+	return err;
+}
+
+/*
+ * The workhandler for config-space updates.
+ *
+ * This is called when ports are hot-added.
+ */
+static void config_work_handler(struct work_struct *work)
+{
+	struct virtio_console_config virtconconf;
+	struct ports_device *portdev;
+	struct virtio_device *vdev;
+	int err;
+
+	portdev = container_of(work, struct ports_device, config_work);
+
+	vdev = portdev->vdev;
+	vdev->config->get(vdev,
+			  offsetof(struct virtio_console_config, nr_ports),
+			  &virtconconf.nr_ports,
+			  sizeof(virtconconf.nr_ports));
+
+	if (portdev->config.nr_ports == virtconconf.nr_ports) {
+		/*
+		 * Port 0 got hot-added.  Since we already did all the
+		 * other initialisation for it, just tell the Host
+		 * that the port is ready if we find the port.  In
+		 * case the port was hot-removed earlier, we call
+		 * add_port to add the port.
+		 */
+		struct port *port;
+
+		port = find_port_by_id(portdev, 0);
+		if (!port)
+			add_port(portdev, 0);
+		else
+			send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
+		return;
+	}
+	if (virtconconf.nr_ports > portdev->config.max_nr_ports) {
+		dev_warn(&vdev->dev,
+			 "More ports specified (%u) than allowed (%u)",
+			 portdev->config.nr_ports + 1,
+			 portdev->config.max_nr_ports);
+		return;
+	}
+	if (virtconconf.nr_ports < portdev->config.nr_ports)
+		return;
+
+	/* Hot-add ports */
+	while (virtconconf.nr_ports - portdev->config.nr_ports) {
+		err = add_port(portdev, portdev->config.nr_ports);
+		if (err)
+			break;
+		portdev->config.nr_ports++;
+	}
+}
+
+static int init_vqs(struct ports_device *portdev)
+{
+	vq_callback_t **io_callbacks;
+	char **io_names;
+	struct virtqueue **vqs;
+	u32 i, j, nr_ports, nr_queues;
+	int err;
+
+	nr_ports = portdev->config.max_nr_ports;
+	nr_queues = use_multiport(portdev) ? (nr_ports + 1) * 2 : 2;
+
+	vqs = kmalloc(nr_queues * sizeof(struct virtqueue *), GFP_KERNEL);
+	if (!vqs) {
+		err = -ENOMEM;
+		goto fail;
+	}
+	io_callbacks = kmalloc(nr_queues * sizeof(vq_callback_t *), GFP_KERNEL);
+	if (!io_callbacks) {
+		err = -ENOMEM;
+		goto free_vqs;
+	}
+	io_names = kmalloc(nr_queues * sizeof(char *), GFP_KERNEL);
+	if (!io_names) {
+		err = -ENOMEM;
+		goto free_callbacks;
+	}
+	portdev->in_vqs = kmalloc(nr_ports * sizeof(struct virtqueue *),
+				  GFP_KERNEL);
+	if (!portdev->in_vqs) {
+		err = -ENOMEM;
+		goto free_names;
+	}
+	portdev->out_vqs = kmalloc(nr_ports * sizeof(struct virtqueue *),
+				   GFP_KERNEL);
+	if (!portdev->out_vqs) {
+		err = -ENOMEM;
+		goto free_invqs;
+	}
+
+	/*
+	 * For backward compat (newer host but older guest), the host
+	 * spawns a console port first and also inits the vqs for port
+	 * 0 before others.
+	 */
+	j = 0;
+	io_callbacks[j] = in_intr;
+	io_callbacks[j + 1] = NULL;
+	io_names[j] = "input";
+	io_names[j + 1] = "output";
+	j += 2;
+
+	if (use_multiport(portdev)) {
+		io_callbacks[j] = control_intr;
+		io_callbacks[j + 1] = NULL;
+		io_names[j] = "control-i";
+		io_names[j + 1] = "control-o";
+
+		for (i = 1; i < nr_ports; i++) {
+			j += 2;
+			io_callbacks[j] = in_intr;
+			io_callbacks[j + 1] = NULL;
+			io_names[j] = "input";
+			io_names[j + 1] = "output";
+		}
+	}
+	/* Find the queues. */
+	err = portdev->vdev->config->find_vqs(portdev->vdev, nr_queues, vqs,
+					      io_callbacks,
+					      (const char **)io_names);
+	if (err)
+		goto free_outvqs;
+
+	j = 0;
+	portdev->in_vqs[0] = vqs[0];
+	portdev->out_vqs[0] = vqs[1];
+	j += 2;
+	if (use_multiport(portdev)) {
+		portdev->c_ivq = vqs[j];
+		portdev->c_ovq = vqs[j + 1];
+
+		for (i = 1; i < nr_ports; i++) {
+			j += 2;
+			portdev->in_vqs[i] = vqs[j];
+			portdev->out_vqs[i] = vqs[j + 1];
+		}
+	}
+	kfree(io_callbacks);
+	kfree(io_names);
+	kfree(vqs);
+
+	return 0;
+
+free_names:
+	kfree(io_names);
+free_callbacks:
+	kfree(io_callbacks);
+free_outvqs:
+	kfree(portdev->out_vqs);
+free_invqs:
+	kfree(portdev->in_vqs);
+free_vqs:
+	kfree(vqs);
+fail:
+	return err;
+}
+
+static const struct file_operations portdev_fops = {
+	.owner = THIS_MODULE,
+};
+
+/*
+ * Once we're further in boot, we get probed like any other virtio
+ * device.
+ *
+ * If the host also supports multiple console ports, we check the
+ * config space to see how many ports the host has spawned.  We
+ * initialize each port found.
+ */
+static int __devinit virtcons_probe(struct virtio_device *vdev)
+{
+	struct ports_device *portdev;
+	u32 i;
+	int err;
+	bool multiport;
+
+	portdev = kmalloc(sizeof(*portdev), GFP_KERNEL);
+	if (!portdev) {
+		err = -ENOMEM;
+		goto fail;
+	}
+
+	/* Attach this portdev to this virtio_device, and vice-versa. */
+	portdev->vdev = vdev;
+	vdev->priv = portdev;
+
+	spin_lock_irq(&pdrvdata_lock);
+	portdev->drv_index = pdrvdata.index++;
+	spin_unlock_irq(&pdrvdata_lock);
+
+	portdev->chr_major = register_chrdev(0, "virtio-portsdev",
+					     &portdev_fops);
+	if (portdev->chr_major < 0) {
+		dev_err(&vdev->dev,
+			"Error %d registering chrdev for device %u\n",
+			portdev->chr_major, portdev->drv_index);
+		err = portdev->chr_major;
+		goto free;
+	}
+
+	multiport = false;
+	portdev->config.nr_ports = 1;
+	portdev->config.max_nr_ports = 1;
+	if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT)) {
+		multiport = true;
+		vdev->features[0] |= 1 << VIRTIO_CONSOLE_F_MULTIPORT;
+
+		vdev->config->get(vdev, offsetof(struct virtio_console_config,
+						 nr_ports),
+				  &portdev->config.nr_ports,
+				  sizeof(portdev->config.nr_ports));
+		vdev->config->get(vdev, offsetof(struct virtio_console_config,
+						 max_nr_ports),
+				  &portdev->config.max_nr_ports,
+				  sizeof(portdev->config.max_nr_ports));
+		if (portdev->config.nr_ports > portdev->config.max_nr_ports) {
+			dev_warn(&vdev->dev,
+				 "More ports (%u) specified than allowed (%u). Will init %u ports.",
+				 portdev->config.nr_ports,
+				 portdev->config.max_nr_ports,
+				 portdev->config.max_nr_ports);
+
+			portdev->config.nr_ports = portdev->config.max_nr_ports;
+		}
+	}
+
+	/* Let the Host know we support multiple ports.*/
+	vdev->config->finalize_features(vdev);
+
+	err = init_vqs(portdev);
+	if (err < 0) {
+		dev_err(&vdev->dev, "Error %d initializing vqs\n", err);
+		goto free_chrdev;
+	}
+
+	spin_lock_init(&portdev->ports_lock);
+	INIT_LIST_HEAD(&portdev->ports);
+
+	if (multiport) {
+		spin_lock_init(&portdev->cvq_lock);
+		INIT_WORK(&portdev->control_work, &control_work_handler);
+		INIT_WORK(&portdev->config_work, &config_work_handler);
+
+		err = fill_queue(portdev->c_ivq, &portdev->cvq_lock);
+		if (!err) {
+			dev_err(&vdev->dev,
+				"Error allocating buffers for control queue\n");
+			err = -ENOMEM;
+			goto free_vqs;
+		}
+	}
+
+	for (i = 0; i < portdev->config.nr_ports; i++)
+		add_port(portdev, i);
+
+	/* Start using the new console output. */
+	early_put_chars = NULL;
 	return 0;
 
 free_vqs:
 	vdev->config->del_vqs(vdev);
+	kfree(portdev->in_vqs);
+	kfree(portdev->out_vqs);
+free_chrdev:
+	unregister_chrdev(portdev->chr_major, "virtio-portsdev");
 free:
-	kfree(inbuf);
+	kfree(portdev);
 fail:
 	return err;
+}
+
+static void virtcons_remove(struct virtio_device *vdev)
+{
+	struct ports_device *portdev;
+	struct port *port, *port2;
+	struct port_buffer *buf;
+	unsigned int len;
+
+	portdev = vdev->priv;
+
+	cancel_work_sync(&portdev->control_work);
+	cancel_work_sync(&portdev->config_work);
+
+	list_for_each_entry_safe(port, port2, &portdev->ports, list)
+		remove_port(port);
+
+	unregister_chrdev(portdev->chr_major, "virtio-portsdev");
+
+	while ((buf = portdev->c_ivq->vq_ops->get_buf(portdev->c_ivq, &len)))
+		free_buf(buf);
+
+	while ((buf = portdev->c_ivq->vq_ops->detach_unused_buf(portdev->c_ivq)))
+		free_buf(buf);
+
+	vdev->config->del_vqs(vdev);
+	kfree(portdev->in_vqs);
+	kfree(portdev->out_vqs);
+
+	kfree(portdev);
 }
 
 static struct virtio_device_id id_table[] = {
···
 
 static unsigned int features[] = {
 	VIRTIO_CONSOLE_F_SIZE,
+	VIRTIO_CONSOLE_F_MULTIPORT,
 };
 
 static struct virtio_driver virtio_console = {
···
 	.driver.owner =	THIS_MODULE,
 	.id_table =	id_table,
 	.probe =	virtcons_probe,
-	.config_changed = virtcons_apply_config,
+	.remove =	virtcons_remove,
+	.config_changed = config_intr,
 };
 
 static int __init init(void)
 {
+	int err;
+
+	pdrvdata.class = class_create(THIS_MODULE, "virtio-ports");
+	if (IS_ERR(pdrvdata.class)) {
+		err = PTR_ERR(pdrvdata.class);
+		pr_err("Error %d creating virtio-ports class\n", err);
+		return err;
+	}
+
+	pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL);
+	if (!pdrvdata.debugfs_dir) {
+		pr_warning("Error %ld creating debugfs dir for virtio-ports\n",
+			   PTR_ERR(pdrvdata.debugfs_dir));
+	}
+	INIT_LIST_HEAD(&pdrvdata.consoles);
+
 	return register_virtio_driver(&virtio_console);
 }
+
+static void __exit fini(void)
+{
+	unregister_virtio_driver(&virtio_console);
+
+	class_destroy(pdrvdata.class);
+	if (pdrvdata.debugfs_dir)
+		debugfs_remove_recursive(pdrvdata.debugfs_dir);
+}
 module_init(init);
+module_exit(fini);
 
 MODULE_DEVICE_TABLE(virtio, id_table);
 MODULE_DESCRIPTION("Virtio console driver");

drivers/clocksource/cs5535-clockevt.c

···
 
 #define DRV_NAME "cs5535-clockevt"
 
-static int timer_irq = CONFIG_CS5535_MFGPT_DEFAULT_IRQ;
+static int timer_irq;
 module_param_named(irq, timer_irq, int, 0644);
 MODULE_PARM_DESC(irq, "Which IRQ to use for the clock source MFGPT ticks.");
 

drivers/gpu/drm/drm_edid.c

···
 	return mode;
 }
 
+/*
+ * EDID is delightfully ambiguous about how interlaced modes are to be
+ * encoded.  Our internal representation is of frame height, but some
+ * HDTV detailed timings are encoded as field height.
+ *
+ * The format list here is from CEA, in frame size.  Technically we
+ * should be checking refresh rate too.  Whatever.
+ */
+static void
+drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
+			    struct detailed_pixel_timing *pt)
+{
+	int i;
+	static const struct {
+		int w, h;
+	} cea_interlaced[] = {
+		{ 1920, 1080 },
+		{  720,  480 },
+		{ 1440,  480 },
+		{ 2880,  480 },
+		{  720,  576 },
+		{ 1440,  576 },
+		{ 2880,  576 },
+	};
+	static const int n_sizes =
+		sizeof(cea_interlaced)/sizeof(cea_interlaced[0]);
+
+	if (!(pt->misc & DRM_EDID_PT_INTERLACED))
+		return;
+
+	for (i = 0; i < n_sizes; i++) {
+		if ((mode->hdisplay == cea_interlaced[i].w) &&
+		    (mode->vdisplay == cea_interlaced[i].h / 2)) {
+			mode->vdisplay *= 2;
+			mode->vsync_start *= 2;
+			mode->vsync_end *= 2;
+			mode->vtotal *= 2;
+			mode->vtotal |= 1;
+		}
+	}
+
+	mode->flags |= DRM_MODE_FLAG_INTERLACE;
+}
+
 /**
  * drm_mode_detailed - create a new mode from an EDID detailed timing section
  * @dev: DRM device (needed to create new mode)
···
 
 	drm_mode_set_name(mode);
 
-	if (pt->misc & DRM_EDID_PT_INTERLACED)
-		mode->flags |= DRM_MODE_FLAG_INTERLACE;
+	drm_mode_do_interlace_quirk(mode, pt);
 
 	if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
 		pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;

drivers/gpu/drm/i915/i915_drv.c

···
 
 static int i915_drm_freeze(struct drm_device *dev)
 {
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
 	pci_save_state(dev->pdev);
 
 	/* If KMS is active, we do the leavevt stuff here */
···
 
 	i915_save_state(dev);
 
-	return 0;
-}
-
-static void i915_drm_suspend(struct drm_device *dev)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
 	intel_opregion_free(dev, 1);
 
 	/* Modeset on resume, not lid events */
 	dev_priv->modeset_on_lid = 0;
+
+	return 0;
 }
 
 static int i915_suspend(struct drm_device *dev, pm_message_t state)
···
 	if (error)
 		return error;
 
-	i915_drm_suspend(dev);
-
 	if (state.event == PM_EVENT_SUSPEND) {
 		/* Shut down the device */
 		pci_disable_device(dev->pdev);
···
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int error = 0;
+
+	i915_restore_state(dev);
+
+	intel_opregion_init(dev, 1);
 
 	/* KMS EnterVT equivalent */
 	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
···
 		return -EIO;
 
 	pci_set_master(dev->pdev);
-
-	i915_restore_state(dev);
-
-	intel_opregion_init(dev, 1);
 
 	return i915_drm_thaw(dev);
 }
···
 	if (error)
 		return error;
 
-	i915_drm_suspend(drm_dev);
-
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
 
···
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
-	int error;
 
-	error = i915_drm_freeze(drm_dev);
-	if (!error)
-		i915_drm_suspend(drm_dev);
-
-	return error;
+	return i915_drm_freeze(drm_dev);
 }
 
 const struct dev_pm_ops i915_pm_ops = {

drivers/gpu/drm/i915/intel_lvds.c

···
 			DMI_MATCH(DMI_PRODUCT_NAME, "PC-81005"),
 		},
 	},
+	{
+		.ident = "Clevo M5x0N",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
+			DMI_MATCH(DMI_BOARD_NAME, "M5x0N"),
+		},
+	},
 	{ }
 };
 

drivers/gpu/drm/nouveau/nouveau_bios.c

···
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nvbios *bios = &dev_priv->VBIOS;
 	struct init_exec iexec = { true, false };
-	unsigned long flags;
 
-	spin_lock_irqsave(&bios->lock, flags);
+	mutex_lock(&bios->lock);
 	bios->display.output = dcbent;
 	parse_init_table(bios, table, &iexec);
 	bios->display.output = NULL;
-	spin_unlock_irqrestore(&bios->lock, flags);
+	mutex_unlock(&bios->lock);
 }
 
 static bool NVInitVBIOS(struct drm_device *dev)
···
 	struct nvbios *bios = &dev_priv->VBIOS;
 
 	memset(bios, 0, sizeof(struct nvbios));
-	spin_lock_init(&bios->lock);
+	mutex_init(&bios->lock);
 	bios->dev = dev;
 
 	if (!NVShadowVBIOS(dev, bios->data))

drivers/gpu/drm/nouveau/nouveau_bios.h

···
 	struct drm_device *dev;
 	struct nouveau_bios_info pub;
 
-	spinlock_t lock;
+	struct mutex lock;
 
 	uint8_t data[NV_PROM_SIZE];
 	unsigned int length;

drivers/gpu/drm/nouveau/nouveau_drv.h

···
 	uint64_t vm_end;
 	struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR];
 	int vm_vram_pt_nr;
+	uint64_t vram_sys_base;
 
 	/* the mtrr covering the FB */
 	int fb_mtrr;

drivers/gpu/drm/nouveau/nouveau_mem.c

···
 			uint32_t flags, uint64_t phys)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpuobj **pgt;
-	unsigned psz, pfl, pages;
+	struct nouveau_gpuobj *pgt;
+	unsigned block;
+	int i;
 
-	if (virt >= dev_priv->vm_gart_base &&
-	    (virt + size) < (dev_priv->vm_gart_base + dev_priv->vm_gart_size)) {
-		psz = 12;
-		pgt = &dev_priv->gart_info.sg_ctxdma;
-		pfl = 0x21;
-		virt -= dev_priv->vm_gart_base;
-	} else
-	if (virt >= dev_priv->vm_vram_base &&
-	    (virt + size) < (dev_priv->vm_vram_base + dev_priv->vm_vram_size)) {
-		psz = 16;
-		pgt = dev_priv->vm_vram_pt;
-		pfl = 0x01;
-		virt -= dev_priv->vm_vram_base;
-	} else {
-		NV_ERROR(dev, "Invalid address: 0x%16llx-0x%16llx\n",
-			 virt, virt + size - 1);
-		return -EINVAL;
+	virt = ((virt - dev_priv->vm_vram_base) >> 16) << 1;
+	size = (size >> 16) << 1;
+
+	phys |= ((uint64_t)flags << 32);
+	phys |= 1;
+	if (dev_priv->vram_sys_base) {
+		phys += dev_priv->vram_sys_base;
+		phys |= 0x30;
 	}
 
-	pages = size >> psz;
-
 	dev_priv->engine.instmem.prepare_access(dev, true);
-	if (flags & 0x80000000) {
-		while (pages--) {
-			struct nouveau_gpuobj *pt = pgt[virt >> 29];
-			unsigned pte = ((virt & 0x1fffffffULL) >> psz) << 1;
+	while (size) {
+		unsigned offset_h = upper_32_bits(phys);
+		unsigned offset_l = lower_32_bits(phys);
+		unsigned pte, end;
 
-			nv_wo32(dev, pt, pte++, 0x00000000);
-			nv_wo32(dev, pt, pte++, 0x00000000);
-
-			virt += (1 << psz);
+		for (i = 7; i >= 0; i--) {
+			block = 1 << (i + 1);
+			if (size >= block && !(virt & (block - 1)))
+				break;
 		}
-	} else {
-		while (pages--) {
-			struct nouveau_gpuobj *pt = pgt[virt >> 29];
-			unsigned pte = ((virt & 0x1fffffffULL) >> psz) << 1;
-			unsigned offset_h = upper_32_bits(phys) & 0xff;
-			unsigned offset_l = lower_32_bits(phys);
+		offset_l |= (i << 7);
 
-			nv_wo32(dev, pt, pte++, offset_l | pfl);
-			nv_wo32(dev, pt, pte++, offset_h | flags);
+		phys += block << 15;
+		size -= block;
 
-			phys += (1 << psz);
-			virt += (1 << psz);
+		while (block) {
+			pgt = dev_priv->vm_vram_pt[virt >> 14];
+			pte = virt & 0x3ffe;
+
+			end = pte + block;
+			if (end > 16384)
+				end = 16384;
+			block -= (end - pte);
+			virt  += (end - pte);
+
+			while (pte < end) {
+				nv_wo32(dev, pgt, pte++, offset_l);
+				nv_wo32(dev, pgt, pte++, offset_h);
+			}
 		}
 	}
 	dev_priv->engine.instmem.finish_access(dev);
···
 void
 nv50_mem_vm_unbind(struct drm_device *dev, uint64_t virt, uint32_t size)
 {
-	nv50_mem_vm_bind_linear(dev, virt, size, 0x80000000, 0);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpuobj *pgt;
+	unsigned pages, pte, end;
+
+	virt -= dev_priv->vm_vram_base;
+	pages = (size >> 16) << 1;
+
+	dev_priv->engine.instmem.prepare_access(dev, true);
+	while (pages) {
+		pgt = dev_priv->vm_vram_pt[virt >> 29];
+		pte = (virt & 0x1ffe0000ULL) >> 15;
+
+		end = pte + pages;
+		if (end > 16384)
+			end = 16384;
+		pages -= (end - pte);
+		virt  += (end - pte) << 15;
+
+		while (pte < end)
+			nv_wo32(dev, pgt, pte++, 0);
+	}
+	dev_priv->engine.instmem.finish_access(dev);
+
+	nv_wr32(dev, 0x100c80, 0x00050001);
+	if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) {
+		NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n");
+		NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80));
+		return;
+	}
+
+	nv_wr32(dev, 0x100c80, 0x00000001);
+	if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) {
+		NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n");
+		NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80));
+	}
 }
 
 /*

drivers/gpu/drm/nouveau/nv04_dac.c

···
 						 struct drm_connector *connector)
 {
 	struct drm_device *dev = encoder->dev;
-	uint8_t saved_seq1, saved_pi, saved_rpc1;
+	uint8_t saved_seq1, saved_pi, saved_rpc1, saved_cr_mode;
 	uint8_t saved_palette0[3], saved_palette_mask;
 	uint32_t saved_rtest_ctrl, saved_rgen_ctrl;
 	int i;
···
 	if (nv_two_heads(dev))
 		/* only implemented for head A for now */
 		NVSetOwner(dev, 0);
+
+	saved_cr_mode = NVReadVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX);
+	NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode | 0x80);
 
 	saved_seq1 = NVReadVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX);
 	NVWriteVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX, saved_seq1 & ~0x20);
···
 	NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_PIXEL_INDEX, saved_pi);
 	NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_RPC1_INDEX, saved_rpc1);
 	NVWriteVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX, saved_seq1);
+	NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode);
 
 	if (blue == 0x18) {
 		NV_INFO(dev, "Load detected on head A\n");

drivers/gpu/drm/nouveau/nv17_tv.c

···
 				nouveau_encoder(encoder)->restore.output);
 
 	nv17_tv_state_load(dev, &to_tv_enc(encoder)->saved_state);
+
+	nouveau_encoder(encoder)->last_dpms = NV_DPMS_CLEARED;
 }
 
 static int nv17_tv_create_resources(struct drm_encoder *encoder,

drivers/gpu/drm/nouveau/nv50_instmem.c

···
 	for (i = 0x1700; i <= 0x1710; i += 4)
 		priv->save1700[(i-0x1700)/4] = nv_rd32(dev, i);
 
+	if (dev_priv->chipset == 0xaa || dev_priv->chipset == 0xac)
+		dev_priv->vram_sys_base = nv_rd32(dev, 0x100e10) << 12;
+	else
+		dev_priv->vram_sys_base = 0;
+
 	/* Reserve the last MiB of VRAM, we should probably try to avoid
 	 * setting up the below tables over the top of the VBIOS image at
 	 * some point.
···
 	 * We map the entire fake channel into the start of the PRAMIN BAR
 	 */
 	ret = nouveau_gpuobj_new_ref(dev, chan, NULL, 0, pt_size, 0x1000,
-							0, &priv->pramin_pt);
+				     0, &priv->pramin_pt);
 	if (ret)
 		return ret;
 
-	for (i = 0, v = c_offset; i < pt_size; i += 8, v += 0x1000) {
-		if (v < (c_offset + c_size))
-			BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, v | 1);
-		else
-			BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, 0x00000009);
+	v = c_offset | 1;
+	if (dev_priv->vram_sys_base) {
+		v += dev_priv->vram_sys_base;
+		v |= 0x30;
+	}
+
+	i = 0;
+	while (v < dev_priv->vram_sys_base + c_offset + c_size) {
+		BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, v);
 		BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, 0x00000000);
+		v += 0x1000;
+		i += 8;
+	}
+
+	while (i < pt_size) {
+		BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, 0x00000000);
+		BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, 0x00000000);
+		i += 8;
 	}
 
 	BAR0_WI32(chan->vm_pd, 0x00, priv->pramin_pt->instance | 0x63);
···
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
-	uint32_t pte, pte_end, vram;
+	struct nouveau_gpuobj *pramin_pt = priv->pramin_pt->gpuobj;
+	uint32_t pte, pte_end;
+	uint64_t vram;
 
 	if (!gpuobj->im_backing || !gpuobj->im_pramin || gpuobj->im_bound)
 		return -EINVAL;
···
 	NV_DEBUG(dev, "st=0x%0llx sz=0x%0llx\n",
 		 gpuobj->im_pramin->start, gpuobj->im_pramin->size);
 
-	pte     = (gpuobj->im_pramin->start >> 12) << 3;
-	pte_end = ((gpuobj->im_pramin->size >> 12) << 3) + pte;
+	pte     = (gpuobj->im_pramin->start >> 12) << 1;
+	pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte;
 	vram    = gpuobj->im_backing_start;
 
 	NV_DEBUG(dev, "pramin=0x%llx, pte=%d, pte_end=%d\n",
 		 gpuobj->im_pramin->start, pte, pte_end);
 	NV_DEBUG(dev, "first vram page: 0x%08x\n", gpuobj->im_backing_start);
 
+	vram |= 1;
+	if (dev_priv->vram_sys_base) {
+		vram += dev_priv->vram_sys_base;
+		vram |= 0x30;
+	}
+
 	dev_priv->engine.instmem.prepare_access(dev, true);
 	while (pte < pte_end) {
-		nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 0)/4, vram | 1);
-		nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 4)/4, 0x00000000);
-
-		pte += 8;
+		nv_wo32(dev, pramin_pt, pte++, lower_32_bits(vram));
+		nv_wo32(dev, pramin_pt, pte++, upper_32_bits(vram));
 		vram += NV50_INSTMEM_PAGE_SIZE;
 	}
 	dev_priv->engine.instmem.finish_access(dev);
···
 	if (gpuobj->im_bound == 0)
 		return -EINVAL;
 
-	pte     = (gpuobj->im_pramin->start >> 12) << 3;
-	pte_end = ((gpuobj->im_pramin->size >> 12) << 3) + pte;
+	pte     = (gpuobj->im_pramin->start >> 12) << 1;
+	pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte;
 
 	dev_priv->engine.instmem.prepare_access(dev, true);
 	while (pte < pte_end) {
-		nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 0)/4, 0x00000009);
-		nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 4)/4, 0x00000000);
-		pte += 8;
+		nv_wo32(dev, priv->pramin_pt->gpuobj, pte++, 0x00000000);
+		nv_wo32(dev, priv->pramin_pt->gpuobj, pte++, 0x00000000);
 	}
 	dev_priv->engine.instmem.finish_access(dev);
 

drivers/gpu/drm/radeon/atom.c

···
 	uint8_t count = U8((*ptr)++);
 	SDEBUG("   count: %d\n", count);
 	if (arg == ATOM_UNIT_MICROSEC)
-		schedule_timeout_uninterruptible(usecs_to_jiffies(count));
+		udelay(count);
 	else
 		schedule_timeout_uninterruptible(msecs_to_jiffies(count));
 }

drivers/gpu/drm/radeon/r600_blit_kms.c

···
 void r600_vb_ib_put(struct radeon_device *rdev)
 {
 	radeon_fence_emit(rdev, rdev->r600_blit.vb_ib->fence);
-	mutex_lock(&rdev->ib_pool.mutex);
-	list_add_tail(&rdev->r600_blit.vb_ib->list, &rdev->ib_pool.scheduled_ibs);
-	mutex_unlock(&rdev->ib_pool.mutex);
 	radeon_ib_free(rdev, &rdev->r600_blit.vb_ib);
 }
 

drivers/gpu/drm/radeon/r600_cp.c

···
 
 	gb_tiling_config |= R600_BANK_SWAPS(1);
 
-	backend_map = r700_get_tile_pipe_to_backend_map(dev_priv->r600_max_tile_pipes,
-							dev_priv->r600_max_backends,
-							(0xff << dev_priv->r600_max_backends) & 0xff);
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV740)
+		backend_map = 0x28;
+	else
+		backend_map = r700_get_tile_pipe_to_backend_map(dev_priv->r600_max_tile_pipes,
+								dev_priv->r600_max_backends,
+								(0xff << dev_priv->r600_max_backends) & 0xff);
 	gb_tiling_config |= R600_BACKEND_MAP(backend_map);
 
 	cc_gc_shader_pipe_config =

drivers/gpu/drm/radeon/radeon.h

···
  * symbol;
  */
 #define RADEON_MAX_USEC_TIMEOUT		100000	/* 100 ms */
+/* RADEON_IB_POOL_SIZE must be a power of 2 */
 #define RADEON_IB_POOL_SIZE		16
 #define RADEON_DEBUGFS_MAX_NUM_FILES	32
 #define RADEONFB_CONN_LIMIT		4
···
  */
 struct radeon_ib {
 	struct list_head	list;
-	unsigned long		idx;
+	unsigned		idx;
 	uint64_t		gpu_addr;
 	struct radeon_fence	*fence;
-	uint32_t	*ptr;
+	uint32_t		*ptr;
 	uint32_t		length_dw;
+	bool			free;
 };
 
 /*
···
 struct radeon_ib_pool {
 	struct mutex		mutex;
 	struct radeon_bo	*robj;
-	struct list_head	scheduled_ibs;
 	struct radeon_ib	ibs[RADEON_IB_POOL_SIZE];
 	bool			ready;
-	DECLARE_BITMAP(alloc_bm, RADEON_IB_POOL_SIZE);
+	unsigned		head_id;
 };
 
 struct radeon_cp {

drivers/gpu/drm/radeon/radeon_atombios.c

···
 			*connector_type = DRM_MODE_CONNECTOR_DVID;
 	}
 
+	/* Asrock RS600 board lists the DVI port as HDMI */
+	if ((dev->pdev->device == 0x7941) &&
+	    (dev->pdev->subsystem_vendor == 0x1849) &&
+	    (dev->pdev->subsystem_device == 0x7941)) {
+		if ((*connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
+		    (supported_device == ATOM_DEVICE_DFP3_SUPPORT))
+			*connector_type = DRM_MODE_CONNECTOR_DVID;
+	}
+
 	/* a-bit f-i90hd - ciaranm on #radeonhd - this board has no DVI */
 	if ((dev->pdev->device == 0x7941) &&
 	    (dev->pdev->subsystem_vendor == 0x147b) &&

drivers/gpu/drm/radeon/radeon_combios.c

···
 	rdev->mode_info.connector_table = radeon_connector_table;
 	if (rdev->mode_info.connector_table == CT_NONE) {
 #ifdef CONFIG_PPC_PMAC
-		if (machine_is_compatible("PowerBook3,3")) {
+		if (of_machine_is_compatible("PowerBook3,3")) {
 			/* powerbook with VGA */
 			rdev->mode_info.connector_table = CT_POWERBOOK_VGA;
-		} else if (machine_is_compatible("PowerBook3,4") ||
-			   machine_is_compatible("PowerBook3,5")) {
+		} else if (of_machine_is_compatible("PowerBook3,4") ||
+			   of_machine_is_compatible("PowerBook3,5")) {
 			/* powerbook with internal tmds */
 			rdev->mode_info.connector_table = CT_POWERBOOK_INTERNAL;
-		} else if (machine_is_compatible("PowerBook5,1") ||
-			   machine_is_compatible("PowerBook5,2") ||
-			   machine_is_compatible("PowerBook5,3") ||
-			   machine_is_compatible("PowerBook5,4") ||
-			   machine_is_compatible("PowerBook5,5")) {
+		} else if (of_machine_is_compatible("PowerBook5,1") ||
+			   of_machine_is_compatible("PowerBook5,2") ||
+			   of_machine_is_compatible("PowerBook5,3") ||
+			   of_machine_is_compatible("PowerBook5,4") ||
+			   of_machine_is_compatible("PowerBook5,5")) {
 			/* powerbook with external single link tmds (sil164) */
 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
-		} else if (machine_is_compatible("PowerBook5,6")) {
+		} else if (of_machine_is_compatible("PowerBook5,6")) {
 			/* powerbook with external dual or single link tmds */
 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
-		} else if (machine_is_compatible("PowerBook5,7") ||
-			   machine_is_compatible("PowerBook5,8") ||
-			   machine_is_compatible("PowerBook5,9")) {
+		} else if (of_machine_is_compatible("PowerBook5,7") ||
+			   of_machine_is_compatible("PowerBook5,8") ||
+			   of_machine_is_compatible("PowerBook5,9")) {
 			/* PowerBook6,2 ? */
 			/* powerbook with external dual link tmds (sil1178?) */
 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
-		} else if (machine_is_compatible("PowerBook4,1") ||
-			   machine_is_compatible("PowerBook4,2") ||
-			   machine_is_compatible("PowerBook4,3") ||
-			   machine_is_compatible("PowerBook6,3") ||
-			   machine_is_compatible("PowerBook6,5") ||
-			   machine_is_compatible("PowerBook6,7")) {
+		} else if (of_machine_is_compatible("PowerBook4,1") ||
+			   of_machine_is_compatible("PowerBook4,2") ||
+			   of_machine_is_compatible("PowerBook4,3") ||
+			   of_machine_is_compatible("PowerBook6,3") ||
+			   of_machine_is_compatible("PowerBook6,5") ||
+			   of_machine_is_compatible("PowerBook6,7")) {
 			/* ibook */
 			rdev->mode_info.connector_table = CT_IBOOK;
-		} else if (machine_is_compatible("PowerMac4,4")) {
+		} else if (of_machine_is_compatible("PowerMac4,4")) {
 			/* emac */
 			rdev->mode_info.connector_table = CT_EMAC;
-		} else if (machine_is_compatible("PowerMac10,1")) {
+		} else if (of_machine_is_compatible("PowerMac10,1")) {
 			/* mini with internal tmds */
 			rdev->mode_info.connector_table = CT_MINI_INTERNAL;
-		} else if (machine_is_compatible("PowerMac10,2")) {
+		} else if (of_machine_is_compatible("PowerMac10,2")) {
 			/* mini with external tmds */
 			rdev->mode_info.connector_table = CT_MINI_EXTERNAL;
-		} else if (machine_is_compatible("PowerMac12,1")) {
+		} else if (of_machine_is_compatible("PowerMac12,1")) {
 			/* PowerMac8,1 ? */
 			/* imac g5 isight */
 			rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;

drivers/gpu/drm/radeon/radeon_connectors.c

···
 			 * connected and the DVI port disconnected.  If the edid doesn't
 			 * say HDMI, vice versa.
 			 */
-			if (radeon_connector->shared_ddc && connector_status_connected) {
+			if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
 				struct drm_device *dev = connector->dev;
 				struct drm_connector *list_connector;
 				struct radeon_connector *list_radeon_connector;
···
 			return;
 		}
 		if (radeon_connector->ddc_bus && i2c_bus->valid) {
-			if (memcmp(&radeon_connector->ddc_bus->rec, i2c_bus,
-				    sizeof(struct radeon_i2c_bus_rec)) == 0) {
+			if (radeon_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
 				radeon_connector->shared_ddc = true;
 				shared_ddc = true;
 			}

drivers/gpu/drm/radeon/radeon_cs.c

···
 						&p->validated);
 		}
 	}
-	return radeon_bo_list_validate(&p->validated, p->ib->fence);
+	return radeon_bo_list_validate(&p->validated);
 }
 
 int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
···
 {
 	unsigned i;
 
-	if (error && parser->ib) {
-		radeon_bo_list_unvalidate(&parser->validated,
-						parser->ib->fence);
-	} else {
-		radeon_bo_list_unreserve(&parser->validated);
+	if (!error && parser->ib) {
+		radeon_bo_list_fence(&parser->validated, parser->ib->fence);
 	}
+	radeon_bo_list_unreserve(&parser->validated);
 	for (i = 0; i < parser->nrelocs; i++) {
 		if (parser->relocs[i].gobj) {
 			mutex_lock(&parser->rdev->ddev->struct_mutex);

drivers/gpu/drm/radeon/radeon_drv.h

···
  * 1.29- R500 3D cmd buffer support
  * 1.30- Add support for occlusion queries
  * 1.31- Add support for num Z pipes from GET_PARAM
+ * 1.32- fixes for rv740 setup
  */
 #define DRIVER_MAJOR		1
-#define DRIVER_MINOR		31
+#define DRIVER_MINOR		32
 #define DRIVER_PATCHLEVEL	0
 
 enum radeon_cp_microcode_version {

drivers/gpu/drm/radeon/radeon_object.c

···
 	}
 }
 
-int radeon_bo_list_validate(struct list_head *head, void *fence)
+int radeon_bo_list_validate(struct list_head *head)
 {
 	struct radeon_bo_list *lobj;
 	struct radeon_bo *bo;
-	struct radeon_fence *old_fence = NULL;
 	int r;
 
 	r = radeon_bo_list_reserve(head);
···
 		}
 		lobj->gpu_offset = radeon_bo_gpu_offset(bo);
 		lobj->tiling_flags = bo->tiling_flags;
-		if (fence) {
-			old_fence = (struct radeon_fence *)bo->tbo.sync_obj;
-			bo->tbo.sync_obj = radeon_fence_ref(fence);
-			bo->tbo.sync_obj_arg = NULL;
-		}
-		if (old_fence) {
-			radeon_fence_unref(&old_fence);
-		}
 	}
 	return 0;
 }
 
-void radeon_bo_list_unvalidate(struct list_head *head, void *fence)
+void radeon_bo_list_fence(struct list_head *head, void *fence)
 {
 	struct radeon_bo_list *lobj;
-	struct radeon_fence *old_fence;
+	struct radeon_bo *bo;
+	struct radeon_fence *old_fence = NULL;
 
-	if (fence)
-		list_for_each_entry(lobj, head, list) {
-			old_fence = to_radeon_fence(lobj->bo->tbo.sync_obj);
-			if (old_fence == fence) {
-				lobj->bo->tbo.sync_obj = NULL;
-				radeon_fence_unref(&old_fence);
-			}
+	list_for_each_entry(lobj, head, list) {
+		bo = lobj->bo;
+		spin_lock(&bo->tbo.lock);
+		old_fence = (struct radeon_fence *)bo->tbo.sync_obj;
+		bo->tbo.sync_obj = radeon_fence_ref(fence);
+		bo->tbo.sync_obj_arg = NULL;
+		spin_unlock(&bo->tbo.lock);
+		if (old_fence) {
+			radeon_fence_unref(&old_fence);
 		}
-	radeon_bo_list_unreserve(head);
+	}
 }
 
 int radeon_bo_fbdev_mmap(struct radeon_bo *bo,

drivers/gpu/drm/radeon/radeon_object.h

···
 				struct list_head *head);
 extern int radeon_bo_list_reserve(struct list_head *head);
 extern void radeon_bo_list_unreserve(struct list_head *head);
-extern int radeon_bo_list_validate(struct list_head *head, void *fence);
-extern void radeon_bo_list_unvalidate(struct list_head *head, void *fence);
+extern int radeon_bo_list_validate(struct list_head *head);
+extern void radeon_bo_list_fence(struct list_head *head, void *fence);
 extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
 				struct vm_area_struct *vma);
 extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,

drivers/gpu/drm/radeon/radeon_ring.c

···
 {
 	struct radeon_fence *fence;
 	struct radeon_ib *nib;
-	unsigned long i;
-	int r = 0;
+	int r = 0, i, c;
 
 	*ib = NULL;
 	r = radeon_fence_create(rdev, &fence);
 	if (r) {
-		DRM_ERROR("failed to create fence for new IB\n");
+		dev_err(rdev->dev, "failed to create fence for new IB\n");
 		return r;
 	}
 	mutex_lock(&rdev->ib_pool.mutex);
-	i = find_first_zero_bit(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
-	if (i < RADEON_IB_POOL_SIZE) {
-		set_bit(i, rdev->ib_pool.alloc_bm);
-		rdev->ib_pool.ibs[i].length_dw = 0;
-		*ib = &rdev->ib_pool.ibs[i];
-		mutex_unlock(&rdev->ib_pool.mutex);
-		goto out;
+	for (i = rdev->ib_pool.head_id, c = 0, nib = NULL; c < RADEON_IB_POOL_SIZE; c++, i++) {
+		i &= (RADEON_IB_POOL_SIZE - 1);
+		if (rdev->ib_pool.ibs[i].free) {
+			nib = &rdev->ib_pool.ibs[i];
+			break;
+		}
 	}
-	if (list_empty(&rdev->ib_pool.scheduled_ibs)) {
-		/* we go do nothings here */
+	if (nib == NULL) {
+		/* This should never happen, it means we allocated all
+		 * IB and haven't scheduled one yet, return EBUSY to
+		 * userspace hoping that on ioctl recall we get better
+		 * luck
+		 */
+		dev_err(rdev->dev, "no free indirect buffer !\n");
 		mutex_unlock(&rdev->ib_pool.mutex);
-		DRM_ERROR("all IB allocated none scheduled.\n");
-		r = -EINVAL;
-		goto out;
+		radeon_fence_unref(&fence);
+		return -EBUSY;
 	}
-	/* get the first ib on the scheduled list */
-	nib = list_entry(rdev->ib_pool.scheduled_ibs.next,
-			 struct radeon_ib, list);
-	if (nib->fence == NULL) {
-		/* we go do nothings here */
+	rdev->ib_pool.head_id = (nib->idx + 1) & (RADEON_IB_POOL_SIZE - 1);
+	nib->free = false;
+	if (nib->fence) {
 		mutex_unlock(&rdev->ib_pool.mutex);
-		DRM_ERROR("IB %lu scheduled without a fence.\n", nib->idx);
-		r = -EINVAL;
-		goto out;
-	}
-	mutex_unlock(&rdev->ib_pool.mutex);
-
-	r = radeon_fence_wait(nib->fence, false);
-	if (r) {
-		DRM_ERROR("radeon: IB(%lu:0x%016lX:%u)\n", nib->idx,
-			  (unsigned long)nib->gpu_addr, nib->length_dw);
-		DRM_ERROR("radeon: GPU lockup detected, fail to get a IB\n");
-		goto out;
+		r = radeon_fence_wait(nib->fence, false);
+		if (r) {
+			dev_err(rdev->dev, "error waiting fence of IB(%u:0x%016lX:%u)\n",
+				nib->idx, (unsigned long)nib->gpu_addr, nib->length_dw);
+			mutex_lock(&rdev->ib_pool.mutex);
+			nib->free = true;
+			mutex_unlock(&rdev->ib_pool.mutex);
+			radeon_fence_unref(&fence);
+			return r;
+		}
+		mutex_lock(&rdev->ib_pool.mutex);
 	}
 	radeon_fence_unref(&nib->fence);
-
+	nib->fence = fence;
 	nib->length_dw = 0;
-
-	/* scheduled list is accessed here */
-	mutex_lock(&rdev->ib_pool.mutex);
-	list_del(&nib->list);
-	INIT_LIST_HEAD(&nib->list);
 	mutex_unlock(&rdev->ib_pool.mutex);
-
 	*ib = nib;
-out:
-	if (r) {
-		radeon_fence_unref(&fence);
-	} else {
-		(*ib)->fence = fence;
-	}
-	return r;
+	return 0;
 }
 
 void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
···
 	if (tmp == NULL) {
 		return;
 	}
-	mutex_lock(&rdev->ib_pool.mutex);
-	if (!list_empty(&tmp->list) && !radeon_fence_signaled(tmp->fence)) {
-		/* IB is scheduled & not signaled don't do anythings */
-		mutex_unlock(&rdev->ib_pool.mutex);
-		return;
-	}
-	list_del(&tmp->list);
-	INIT_LIST_HEAD(&tmp->list);
-	if (tmp->fence)
+	if (!tmp->fence->emited)
 		radeon_fence_unref(&tmp->fence);
-
-	tmp->length_dw = 0;
-	clear_bit(tmp->idx, rdev->ib_pool.alloc_bm);
+	mutex_lock(&rdev->ib_pool.mutex);
+	tmp->free = true;
 	mutex_unlock(&rdev->ib_pool.mutex);
 }
 
···
 
 	if (!ib->length_dw || !rdev->cp.ready) {
 		/* TODO: Nothings in the ib we should report. */
-		DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx);
+		DRM_ERROR("radeon: couldn't schedule IB(%u).\n", ib->idx);
 		return -EINVAL;
 	}
 
···
 	radeon_ring_ib_execute(rdev, ib);
 	radeon_fence_emit(rdev, ib->fence);
 	mutex_lock(&rdev->ib_pool.mutex);
-	list_add_tail(&ib->list, &rdev->ib_pool.scheduled_ibs);
+	/* once scheduled IB is considered free and protected by the fence */
+	ib->free = true;
 	mutex_unlock(&rdev->ib_pool.mutex);
 	radeon_ring_unlock_commit(rdev);
 	return 0;
···
 	if (rdev->ib_pool.robj)
 		return 0;
 	/* Allocate 1M object buffer */
-	INIT_LIST_HEAD(&rdev->ib_pool.scheduled_ibs);
 	r = radeon_bo_create(rdev, NULL,  RADEON_IB_POOL_SIZE*64*1024,
 				true, RADEON_GEM_DOMAIN_GTT,
 				&rdev->ib_pool.robj);
···
 		rdev->ib_pool.ibs[i].ptr = ptr + offset;
 		rdev->ib_pool.ibs[i].idx = i;
 		rdev->ib_pool.ibs[i].length_dw = 0;
-		INIT_LIST_HEAD(&rdev->ib_pool.ibs[i].list);
+		rdev->ib_pool.ibs[i].free = true;
 	}
-	bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
+	rdev->ib_pool.head_id = 0;
 	rdev->ib_pool.ready = true;
 	DRM_INFO("radeon: ib pool ready.\n");
 	if (radeon_debugfs_ib_init(rdev)) {
···
 		return;
 	}
 	mutex_lock(&rdev->ib_pool.mutex);
-	bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
 	if (rdev->ib_pool.robj) {
 		r = radeon_bo_reserve(rdev->ib_pool.robj, false);
 		if (likely(r == 0)) {
···
 	if (ib == NULL) {
 		return 0;
 	}
-	seq_printf(m, "IB %04lu\n", ib->idx);
+	seq_printf(m, "IB %04u\n", ib->idx);
 	seq_printf(m, "IB fence %p\n", ib->fence);
 	seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
 	for (i = 0; i < ib->length_dw; i++) {

drivers/gpu/drm/radeon/rv770.c

···
 
 	gb_tiling_config |= BANK_SWAPS(1);
 
-	backend_map = r700_get_tile_pipe_to_backend_map(rdev->config.rv770.max_tile_pipes,
-							rdev->config.rv770.max_backends,
-							(0xff << rdev->config.rv770.max_backends) & 0xff);
+	if (rdev->family == CHIP_RV740)
+		backend_map = 0x28;
+	else
+		backend_map = r700_get_tile_pipe_to_backend_map(rdev->config.rv770.max_tile_pipes,
+								rdev->config.rv770.max_backends,
+								(0xff << rdev->config.rv770.max_backends) & 0xff);
 	gb_tiling_config |= BACKEND_MAP(backend_map);
 
 	cc_gc_shader_pipe_config =

drivers/gpu/drm/ttm/ttm_tt.c

···
 
 #ifdef CONFIG_X86
 static inline int ttm_tt_set_page_caching(struct page *p,
-					  enum ttm_caching_state c_state)
+					  enum ttm_caching_state c_old,
+					  enum ttm_caching_state c_new)
 {
 	int ret = 0;
 
 	if (PageHighMem(p))
 		return 0;
 
-	if (get_page_memtype(p) != -1) {
+	if (c_old != tt_cached) {
 		/* p isn't in the default caching state, set it to
 		 * writeback first to free its current memtype. */
 
···
 			return ret;
 	}
 
-	if (c_state == tt_wc)
+	if (c_new == tt_wc)
 		ret = set_memory_wc((unsigned long) page_address(p), 1);
-	else if (c_state == tt_uncached)
+	else if (c_new == tt_uncached)
 		ret = set_pages_uc(p, 1);
 
 	return ret;
 }
 #else /* CONFIG_X86 */
 static inline int ttm_tt_set_page_caching(struct page *p,
-					  enum ttm_caching_state c_state)
+					  enum ttm_caching_state c_old,
+					  enum ttm_caching_state c_new)
 {
 	return 0;
 }
···
 	for (i = 0; i < ttm->num_pages; ++i) {
 		cur_page = ttm->pages[i];
 		if (likely(cur_page != NULL)) {
-			ret = ttm_tt_set_page_caching(cur_page, c_state);
+			ret = ttm_tt_set_page_caching(cur_page,
+						      ttm->caching_state,
+						      c_state);
 			if (unlikely(ret != 0))
 				goto out_err;
 		}
···
 	for (j = 0; j < i; ++j) {
 		cur_page = ttm->pages[j];
 		if (likely(cur_page != NULL)) {
-			(void)ttm_tt_set_page_caching(cur_page,
+			(void)ttm_tt_set_page_caching(cur_page, c_state,
 						      ttm->caching_state);
 		}
 	}

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

···
 		 */
 
 		DRM_INFO("It appears like vesafb is loaded. "
-			 "Ignore above error if any. Entering stealth mode.\n");
+			 "Ignore above error if any.\n");
 		ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 		if (unlikely(ret != 0)) {
 			DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 			goto out_no_device;
 		}
-		vmw_kms_init(dev_priv);
-		vmw_overlay_init(dev_priv);
-	} else {
-		ret = vmw_request_device(dev_priv);
-		if (unlikely(ret != 0))
-			goto out_no_device;
-		vmw_kms_init(dev_priv);
-		vmw_overlay_init(dev_priv);
-		vmw_fb_init(dev_priv);
 	}
+	ret = vmw_request_device(dev_priv);
+	if (unlikely(ret != 0))
+		goto out_no_device;
+	vmw_kms_init(dev_priv);
+	vmw_overlay_init(dev_priv);
+	vmw_fb_init(dev_priv);
 
 	dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 	register_pm_notifier(&dev_priv->pm_nb);
···
 
 	unregister_pm_notifier(&dev_priv->pm_nb);
 
-	if (!dev_priv->stealth) {
-		vmw_fb_close(dev_priv);
-		vmw_kms_close(dev_priv);
-		vmw_overlay_close(dev_priv);
-		vmw_release_device(dev_priv);
-		pci_release_regions(dev->pdev);
-	} else {
-		vmw_kms_close(dev_priv);
-		vmw_overlay_close(dev_priv);
+	vmw_fb_close(dev_priv);
+	vmw_kms_close(dev_priv);
+	vmw_overlay_close(dev_priv);
+	vmw_release_device(dev_priv);
+	if (dev_priv->stealth)
 		pci_release_region(dev->pdev, 2);
-	}
+	else
+		pci_release_regions(dev->pdev);
+
 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 		drm_irq_uninstall(dev_priv->dev);
 	if (dev->devname == vmw_devname)
···
 	int ret = 0;
 
 	DRM_INFO("Master set.\n");
-	if (dev_priv->stealth) {
-		ret = vmw_request_device(dev_priv);
-		if (unlikely(ret != 0))
-			return ret;
-	}
 
 	if (active) {
 		BUG_ON(active != &dev_priv->fbdev_master);
···
 
 	ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 
-	if (dev_priv->stealth) {
-		ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
-		if (unlikely(ret != 0))
-			DRM_ERROR("Unable to clean VRAM on master drop.\n");
-		vmw_release_device(dev_priv);
-	}
 	dev_priv->active_master = &dev_priv->fbdev_master;
 	ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 	ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 
-	if (!dev_priv->stealth)
-		vmw_fb_on(dev_priv);
+	vmw_fb_on(dev_priv);
 }
 
 

drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

···
 	return vmw_cmd_sid_check(dev_priv, sw_context, &cmd->body.sid);
 }
 
-static int vmw_cmd_dma(struct vmw_private *dev_priv,
-		       struct vmw_sw_context *sw_context,
-		       SVGA3dCmdHeader *header)
+static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
+				   struct vmw_sw_context *sw_context,
+				   SVGAGuestPtr *ptr,
+				   struct vmw_dma_buffer **vmw_bo_p)
 {
-	uint32_t handle;
 	struct vmw_dma_buffer *vmw_bo = NULL;
 	struct ttm_buffer_object *bo;
-	struct vmw_surface *srf = NULL;
-	struct vmw_dma_cmd {
-		SVGA3dCmdHeader header;
-		SVGA3dCmdSurfaceDMA dma;
-	} *cmd;
+	uint32_t handle = ptr->gmrId;
 	struct vmw_relocation *reloc;
-	int ret;
 	uint32_t cur_validate_node;
 	struct ttm_validate_buffer *val_buf;
+	int ret;
 
-	cmd = container_of(header, struct vmw_dma_cmd, header);
-	handle = cmd->dma.guest.ptr.gmrId;
 	ret = vmw_user_dmabuf_lookup(sw_context->tfile, handle, &vmw_bo);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("Could not find or use GMR region.\n");
···
 	bo = &vmw_bo->base;
 
 	if (unlikely(sw_context->cur_reloc >= VMWGFX_MAX_RELOCATIONS)) {
-		DRM_ERROR("Max number of DMA commands per submission"
+		DRM_ERROR("Max number relocations per submission"
 			  " exceeded\n");
 		ret = -EINVAL;
 		goto out_no_reloc;
 	}
 
 	reloc = &sw_context->relocs[sw_context->cur_reloc++];
-	reloc->location = &cmd->dma.guest.ptr;
+	reloc->location = ptr;
 
 	cur_validate_node = vmw_dmabuf_validate_node(bo, sw_context->cur_val_buf);
 	if (unlikely(cur_validate_node >= VMWGFX_MAX_GMRS)) {
···
 		list_add_tail(&val_buf->head, &sw_context->validate_nodes);
 		++sw_context->cur_val_buf;
 	}
+	*vmw_bo_p = vmw_bo;
+	return 0;
 
+out_no_reloc:
+	vmw_dmabuf_unreference(&vmw_bo);
+	vmw_bo_p = NULL;
+	return ret;
+}
+
+static int vmw_cmd_end_query(struct vmw_private *dev_priv,
+			     struct vmw_sw_context *sw_context,
+			     SVGA3dCmdHeader *header)
+{
+	struct vmw_dma_buffer *vmw_bo;
+	struct vmw_query_cmd {
+		SVGA3dCmdHeader header;
+		SVGA3dCmdEndQuery q;
+	} *cmd;
+	int ret;
+
+	cmd = container_of(header, struct vmw_query_cmd, header);
+	ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+	if (unlikely(ret != 0))
+		return ret;
+
+	ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+				      &cmd->q.guestResult,
+				      &vmw_bo);
+	if (unlikely(ret != 0))
+		return ret;
+
+	vmw_dmabuf_unreference(&vmw_bo);
+	return 0;
+}
+
+static int vmw_cmd_wait_query(struct vmw_private *dev_priv,
+			      struct vmw_sw_context *sw_context,
+			      SVGA3dCmdHeader *header)
+{
+	struct vmw_dma_buffer *vmw_bo;
+	struct vmw_query_cmd {
+		SVGA3dCmdHeader header;
+		SVGA3dCmdWaitForQuery q;
+	} *cmd;
+	int ret;
+
+	cmd = container_of(header, struct vmw_query_cmd, header);
+	ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+	if (unlikely(ret != 0))
+		return ret;
+
+	ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+				      &cmd->q.guestResult,
+				      &vmw_bo);
+	if (unlikely(ret != 0))
+		return ret;
+
+	vmw_dmabuf_unreference(&vmw_bo);
+	return 0;
+}
+
+
+static int vmw_cmd_dma(struct vmw_private *dev_priv,
+		       struct vmw_sw_context *sw_context,
+		       SVGA3dCmdHeader *header)
+{
+	struct vmw_dma_buffer *vmw_bo = NULL;
+	struct ttm_buffer_object *bo;
+	struct vmw_surface *srf = NULL;
+	struct vmw_dma_cmd {
+		SVGA3dCmdHeader header;
+		SVGA3dCmdSurfaceDMA dma;
+	} *cmd;
+	int ret;
+
+	cmd = container_of(header, struct vmw_dma_cmd, header);
+	ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+				      &cmd->dma.guest.ptr,
+				      &vmw_bo);
+	if (unlikely(ret != 0))
+		return ret;
+
+	bo = &vmw_bo->base;
 	ret = vmw_user_surface_lookup_handle(dev_priv, sw_context->tfile,
 					     cmd->dma.host.sid, &srf);
 	if (ret) {
···
 	VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw),
 	VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check),
 	VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_cid_check),
-	VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_cid_check),
-	VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_cid_check),
+	VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query),
+	VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query),
 	VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok),
 	VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN,
 		    &vmw_cmd_blt_surf_screen_check)

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

···
 	info->pixmap.scan_align = 1;
 #endif
 
+	info->aperture_base = vmw_priv->vram_start;
+	info->aperture_size = vmw_priv->vram_size;
+
 	/*
 	 * Dirty & Deferred IO
 	 */

drivers/gpu/vga/vgaarb.c

···
 		remaining -= 7;
 		pr_devel("client 0x%p called 'target'\n", priv);
 		/* if target is default */
-		if (!strncmp(kbuf, "default", 7))
+		if (!strncmp(curr_pos, "default", 7))
 			pdev = pci_dev_get(vga_default_device());
 		else {
 			if (!vga_pci_str_to_vars(curr_pos, remaining,

drivers/hid/Kconfig

···
 menu "Special HID drivers"
 	depends on HID
 
+config HID_3M_PCT
+	tristate "3M PCT"
+	depends on USB_HID
+	---help---
+	Support for 3M PCT touch screens.
+
 config HID_A4TECH
 	tristate "A4 tech" if EMBEDDED
 	depends on USB_HID
···
 	  Say Y here if you want to enable force feedback support for Logitech
 	  Rumblepad 2 devices.
 
+config LOGIG940_FF
+	bool "Logitech Flight System G940 force feedback support"
+	depends on HID_LOGITECH
+	select INPUT_FF_MEMLESS
+	help
+	  Say Y here if you want to enable force feedback support for Logitech
+	  Flight System G940 devices.
+
+config HID_MAGICMOUSE
+	tristate "Apple MagicMouse multi-touch support"
+	depends on BT_HIDP
+	---help---
+	Support for the Apple Magic Mouse multi-touch.
+
+	Say Y here if you want support for the multi-touch features of the
+	Apple Wireless "Magic" Mouse.
+
 config HID_MICROSOFT
 	tristate "Microsoft" if EMBEDDED
 	depends on USB_HID
 	default !EMBEDDED
 	---help---
 	Support for Microsoft devices that are not fully compliant with HID standard.
+
+config HID_MOSART
+	tristate "MosArt"
+	depends on USB_HID
+	---help---
+	Support for MosArt dual-touch panels.
 
 config HID_MONTEREY
 	tristate "Monterey" if EMBEDDED
···
 	Support for Monterey Genius KB29E.
 
 config HID_NTRIG
-	tristate "NTrig" if EMBEDDED
+	tristate "NTrig"
+	depends on USB_HID
+	---help---
+	Support for N-Trig touch screen.
+
+config HID_ORTEK
+	tristate "Ortek" if EMBEDDED
 	depends on USB_HID
 	default !EMBEDDED
 	---help---
-	Support for N-Trig touch screen.
+	Support for Ortek WKB-2000 wireless keyboard + mouse trackpad.
 
 config HID_PANTHERLORD
 	tristate "Pantherlord support" if EMBEDDED
···
 	---help---
 	Support for Petalynx Maxter remote control.
 
+config HID_QUANTA
+	tristate "Quanta Optical Touch"
+	depends on USB_HID
+	---help---
+	Support for Quanta Optical Touch dual-touch panels.
+
 config HID_SAMSUNG
 	tristate "Samsung" if EMBEDDED
 	depends on USB_HID
···
 	default !EMBEDDED
 	---help---
 	Support for Sony PS3 controller.
+
+config HID_STANTUM
+	tristate "Stantum"
+	depends on USB_HID
+	---help---
+	Support for Stantum multitouch panel.
 
 config HID_SUNPLUS
 	tristate "Sunplus" if EMBEDDED
···
 	  Rumble Force or Force Feedback Wheel.
 
 config HID_WACOM
-	tristate "Wacom Bluetooth devices support" if EMBEDDED
+	tristate "Wacom Bluetooth devices support"
 	depends on BT_HIDP
-	default !EMBEDDED
 	---help---
 	Support for Wacom Graphire Bluetooth tablet.
 

drivers/hid/Makefile

···
 ifdef CONFIG_LOGIRUMBLEPAD2_FF
 	hid-logitech-objs	+= hid-lg2ff.o
 endif
+ifdef CONFIG_LOGIG940_FF
+	hid-logitech-objs	+= hid-lg3ff.o
+endif
 
+obj-$(CONFIG_HID_3M_PCT)	+= hid-3m-pct.o
 obj-$(CONFIG_HID_A4TECH)	+= hid-a4tech.o
 obj-$(CONFIG_HID_APPLE)		+= hid-apple.o
 obj-$(CONFIG_HID_BELKIN)	+= hid-belkin.o
···
 obj-$(CONFIG_HID_KENSINGTON)	+= hid-kensington.o
 obj-$(CONFIG_HID_KYE)		+= hid-kye.o
 obj-$(CONFIG_HID_LOGITECH)	+= hid-logitech.o
+obj-$(CONFIG_HID_MAGICMOUSE)    += hid-magicmouse.o
 obj-$(CONFIG_HID_MICROSOFT)	+= hid-microsoft.o
 obj-$(CONFIG_HID_MONTEREY)	+= hid-monterey.o
+obj-$(CONFIG_HID_MOSART)	+= hid-mosart.o
 obj-$(CONFIG_HID_NTRIG)		+= hid-ntrig.o
+obj-$(CONFIG_HID_ORTEK)		+= hid-ortek.o
+obj-$(CONFIG_HID_QUANTA)	+= hid-quanta.o
 obj-$(CONFIG_HID_PANTHERLORD)	+= hid-pl.o
 obj-$(CONFIG_HID_PETALYNX)	+= hid-petalynx.o
 obj-$(CONFIG_HID_SAMSUNG)	+= hid-samsung.o
 obj-$(CONFIG_HID_SMARTJOYPLUS)	+= hid-sjoy.o
 obj-$(CONFIG_HID_SONY)		+= hid-sony.o
+obj-$(CONFIG_HID_STANTUM)	+= hid-stantum.o
 obj-$(CONFIG_HID_SUNPLUS)	+= hid-sunplus.o
 obj-$(CONFIG_HID_GREENASIA)	+= hid-gaff.o
 obj-$(CONFIG_HID_THRUSTMASTER)	+= hid-tmff.o

drivers/hid/hid-3m-pct.c

···
+/*
+ *  HID driver for 3M PCT multitouch panels
+ *
+ *  Copyright (c) 2009 Stephane Chatty <[e-mail]>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+MODULE_AUTHOR("Stephane Chatty <[e-mail]>");
+MODULE_DESCRIPTION("3M PCT multitouch panels");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct mmm_finger {
+	__s32 x, y;
+	__u8 rank;
+	bool touch, valid;
+};
+
+struct mmm_data {
+	struct mmm_finger f[10];
+	__u8 curid, num;
+	bool touch, valid;
+};
+
+static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	switch (usage->hid & HID_USAGE_PAGE) {
+
+	case HID_UP_BUTTON:
+		return -1;
+
+	case HID_UP_GENDESK:
+		switch (usage->hid) {
+		case HID_GD_X:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_X);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_X,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		case HID_GD_Y:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_Y);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_Y,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		}
+		return 0;
+
+	case HID_UP_DIGITIZER:
+		switch (usage->hid) {
+		/* we do not want to map these: no input-oriented meaning */
+		case 0x14:
+		case 0x23:
+		case HID_DG_INPUTMODE:
+		case HID_DG_DEVICEINDEX:
+		case HID_DG_CONTACTCOUNT:
+		case HID_DG_CONTACTMAX:
+		case HID_DG_INRANGE:
+		case HID_DG_CONFIDENCE:
+			return -1;
+		case HID_DG_TIPSWITCH:
+			/* touchscreen emulation */
+			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+			return 1;
+		case HID_DG_CONTACTID:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TRACKING_ID);
+			return 1;
+		}
+		/* let hid-input decide for the others */
+		return 0;
+
+	case 0xff000000:
+		/* we do not want to map these: no input-oriented meaning */
+		return -1;
+	}
+
+	return 0;
+}
+
+static int mmm_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if (usage->type == EV_KEY || usage->type == EV_ABS)
+		clear_bit(usage->code, *bit);
+
+	return 0;
+}
+
+/*
+ * this function is called when a whole packet has been received and processed,
+ * so that it can decide what to send to the input layer.
+ */
+static void mmm_filter_event(struct mmm_data *md, struct input_dev *input)
+{
+	struct mmm_finger *oldest = 0;
+	bool pressed = false, released = false;
+	int i;
+
+	/*
+	 * we need to iterate on all fingers to decide if we have a press
+	 * or a release event in our touchscreen emulation.
+	 */
+	for (i = 0; i < 10; ++i) {
+		struct mmm_finger *f = &md->f[i];
+		if (!f->valid) {
+			/* this finger is just placeholder data, ignore */
+		} else if (f->touch) {
+			/* this finger is on the screen */
+			input_event(input, EV_ABS, ABS_MT_TRACKING_ID, i);
+			input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x);
+			input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y);
+			input_mt_sync(input);
+			/*
+			 * touchscreen emulation: maintain the age rank
+			 * of this finger, decide if we have a press
+			 */
+			if (f->rank == 0) {
+				f->rank = ++(md->num);
+				if (f->rank == 1)
+					pressed = true;
+			}
+			if (f->rank == 1)
+				oldest = f;
+		} else {
+			/* this finger took off the screen */
+			/* touchscreen emulation: maintain age rank of others */
+			int j;
+
+			for (j = 0; j < 10; ++j) {
+				struct mmm_finger *g = &md->f[j];
+				if (g->rank > f->rank) {
+					g->rank--;
+					if (g->rank == 1)
+						oldest = g;
+				}
+			}
+			f->rank = 0;
+			--(md->num);
+			if (md->num == 0)
+				released = true;
+		}
+		f->valid = 0;
+	}
+
+	/* touchscreen emulation */
+	if (oldest) {
+		if (pressed)
+			input_event(input, EV_KEY, BTN_TOUCH, 1);
+		input_event(input, EV_ABS, ABS_X, oldest->x);
+		input_event(input, EV_ABS, ABS_Y, oldest->y);
+	} else if (released) {
+		input_event(input, EV_KEY, BTN_TOUCH, 0);
+	}
+}
+
+/*
+ * this function is called upon all reports
+ * so that we can accumulate contact point information,
+ * and call input_mt_sync after each point.
+ */
+static int mmm_event(struct hid_device *hid, struct hid_field *field,
+				struct hid_usage *usage, __s32 value)
+{
+	struct mmm_data *md = hid_get_drvdata(hid);
+	/*
+	 * strangely, this function can be called before
+	 * field->hidinput is initialized!
+	 */
+	if (hid->claimed & HID_CLAIMED_INPUT) {
+		struct input_dev *input = field->hidinput->input;
+		switch (usage->hid) {
+		case HID_DG_TIPSWITCH:
+			md->touch = value;
+			break;
+		case HID_DG_CONFIDENCE:
+			md->valid = value;
+			break;
+		case HID_DG_CONTACTID:
+			if (md->valid) {
+				md->curid = value;
+				md->f[value].touch = md->touch;
+				md->f[value].valid = 1;
+			}
+			break;
+		case HID_GD_X:
+			if (md->valid)
+				md->f[md->curid].x = value;
+			break;
+		case HID_GD_Y:
+			if (md->valid)
+				md->f[md->curid].y = value;
+			break;
+		case HID_DG_CONTACTCOUNT:
+			mmm_filter_event(md, input);
+			break;
+		}
+	}
+
+	/* we have handled the hidinput part, now remains hiddev */
+	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+		hid->hiddev_hid_event(hid, field, usage, value);
+
+	return 1;
+}
+
+static int mmm_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+	struct mmm_data *md;
+
+	md = kzalloc(sizeof(struct mmm_data), GFP_KERNEL);
+	if (!md) {
+		dev_err(&hdev->dev, "cannot allocate 3M data\n");
+		return -ENOMEM;
+	}
+	hid_set_drvdata(hdev, md);
+
+	ret = hid_parse(hdev);
+	if (!ret)
+		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+	if (ret)
+		kfree(md);
+	return ret;
+}
+
+static void mmm_remove(struct hid_device *hdev)
+{
+	hid_hw_stop(hdev);
+	kfree(hid_get_drvdata(hdev));
+	hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id mmm_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, mmm_devices);
+
+static const struct hid_usage_id mmm_grabbed_usages[] = {
+	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver mmm_driver = {
+	.name = "3m-pct",
+	.id_table = mmm_devices,
+	.probe = mmm_probe,
+	.remove = mmm_remove,
+	.input_mapping = mmm_input_mapping,
+	.input_mapped = mmm_input_mapped,
+	.usage_table = mmm_grabbed_usages,
+	.event = mmm_event,
+};
+
+static int __init mmm_init(void)
+{
+	return hid_register_driver(&mmm_driver);
+}
+
+static void __exit mmm_exit(void)
+{
+	hid_unregister_driver(&mmm_driver);
+}
+
+module_init(mmm_init);
+module_exit(mmm_exit);
+MODULE_LICENSE("GPL");
+

drivers/hid/hid-apple.c

···
 MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
 		"[1] = fkeyslast, 2 = fkeysfirst)");
 
+static unsigned int iso_layout = 1;
+module_param(iso_layout, uint, 0644);
+MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. "
+		"(0 = disabled, [1] = enabled)");
+
 struct apple_sc {
 	unsigned long quirks;
 	unsigned int fn_on;
···
 		}
 	}
 
-	if (asc->quirks & APPLE_ISO_KEYBOARD) {
-		trans = apple_find_translation(apple_iso_keyboard, usage->code);
-		if (trans) {
-			input_event(input, usage->type, trans->to, value);
-			return 1;
+        if (iso_layout) {
+		if (asc->quirks & APPLE_ISO_KEYBOARD) {
+			trans = apple_find_translation(apple_iso_keyboard, usage->code);
+			if (trans) {
+				input_event(input, usage->type, trans->to, value);
+				return 1;
+			}
 		}
 	}
 

drivers/hid/hid-core.c

···
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2005 Vojtech Pavlik <[e-mail]>
  *  Copyright (c) 2005 Michael Haboustak <[e-mail]> for Concept2, Inc
- *  Copyright (c) 2006-2007 Jiri Kosina
+ *  Copyright (c) 2006-2010 Jiri Kosina
  */
 
 /*
···
  * Register a new report for a device.
  */
 
-static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
+struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
 {
 	struct hid_report_enum *report_enum = device->report_enum + type;
 	struct hid_report *report;
···
 
 	return report;
 }
+EXPORT_SYMBOL_GPL(hid_register_report);
 
 /*
  * Register a new field for this report.
···
 	__u32 data;
 	unsigned n;
 
-	if (item->size == 0) {
+	/* Local delimiter could have value 0, which allows size to be 0 */
+	if (item->size == 0 && item->tag != HID_LOCAL_ITEM_TAG_DELIMITER) {
 		dbg_hid("item data expected for local item\n");
 		return -1;
 	}
···
 
 /* a list of devices for which there is a specialized driver on HID bus */
 static const struct hid_device_id hid_blacklist[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM)},
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2)},
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT)},
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
 	{ HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },

drivers/hid/hid-debug.c

···
 	[EV_SND] = sounds,			[EV_REP] = repeats,
 };
 
-void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f) {
-
+static void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f)
+{
 	seq_printf(f, "%s.%s", events[type] ? events[type] : "?",
 		names[type] ? (names[type][code] ? names[type][code] : "?") : "?");
 }
 
-void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
+static void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
 {
 	int i, j, k;
 	struct hid_report *report;

drivers/hid/hid-ids.h

···
 #ifndef HID_IDS_H_FILE
 #define HID_IDS_H_FILE
 
+#define USB_VENDOR_ID_3M		0x0596
+#define USB_DEVICE_ID_3M1968		0x0500
+
 #define USB_VENDOR_ID_A4TECH		0x09da
 #define USB_DEVICE_ID_A4TECH_WCP32PU	0x0006
 #define USB_DEVICE_ID_A4TECH_X5_005D	0x000a
···
 
 #define USB_VENDOR_ID_APPLE		0x05ac
 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE	0x0304
+#define USB_DEVICE_ID_APPLE_MAGICMOUSE	0x030d
 #define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI	0x020e
 #define USB_DEVICE_ID_APPLE_FOUNTAIN_ISO	0x020f
 #define USB_DEVICE_ID_APPLE_GEYSER_ANSI	0x0214
···
 #define USB_DEVICE_ID_APPLE_ATV_IRCONTROL	0x8241
 #define USB_DEVICE_ID_APPLE_IRCONTROL4	0x8242
 
-#define USB_VENDOR_ID_ASUS		0x0b05
-#define USB_DEVICE_ID_ASUS_LCM		0x1726
-#define USB_DEVICE_ID_ASUS_LCM2		0x175b
+#define USB_VENDOR_ID_ASUS		0x0486
+#define USB_DEVICE_ID_ASUS_T91MT	0x0185
+
+#define USB_VENDOR_ID_ASUSTEK		0x0b05
+#define USB_DEVICE_ID_ASUSTEK_LCM	0x1726
+#define USB_DEVICE_ID_ASUSTEK_LCM2	0x175b
 
 #define USB_VENDOR_ID_ATEN		0x0557
 #define USB_DEVICE_ID_ATEN_UC100KM	0x2004
···
 
 #define USB_VENDOR_ID_ESSENTIAL_REALITY	0x0d7f
 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
+
+#define USB_VENDOR_ID_ETURBOTOUCH	0x22b9
+#define USB_DEVICE_ID_ETURBOTOUCH	0x0006
 
 #define USB_VENDOR_ID_ETT		0x0664
 #define USB_DEVICE_ID_TC5UH		0x0309
···
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2	0xc219
 #define USB_DEVICE_ID_LOGITECH_WINGMAN_F3D	0xc283
 #define USB_DEVICE_ID_LOGITECH_FORCE3D_PRO	0xc286
+#define USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940	0xc287
 #define USB_DEVICE_ID_LOGITECH_WHEEL	0xc294
 #define USB_DEVICE_ID_LOGITECH_WINGMAN_FFG	0xc293
 #define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL	0xc295
···
 #define USB_VENDOR_ID_ONTRAK		0x0a07
 #define USB_DEVICE_ID_ONTRAK_ADU100	0x0064
 
+#define USB_VENDOR_ID_ORTEK		0x05a4
+#define USB_DEVICE_ID_ORTEK_WKB2000	0x2000
+
 #define USB_VENDOR_ID_PANJIT		0x134c
 
 #define USB_VENDOR_ID_PANTHERLORD	0x0810
···
 #define USB_VENDOR_ID_POWERCOM		0x0d9f
 #define USB_DEVICE_ID_POWERCOM_UPS	0x0002
 
+#define USB_VENDOR_ID_PRODIGE		0x05af
+#define USB_DEVICE_ID_PRODIGE_CORDLESS	0x3062
+
 #define USB_VENDOR_ID_SAITEK		0x06a3
 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD	0xff17
+
+#define USB_VENDOR_ID_QUANTA		0x0408
+#define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH	0x3000
+#define USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN	0x3001
 
 #define USB_VENDOR_ID_SAMSUNG		0x0419
 #define USB_DEVICE_ID_SAMSUNG_IR_REMOTE	0x0001
···
 #define USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST	0x0034
 #define USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST	0x0046
 
+#define USB_VENDOR_ID_STANTUM		0x1f87
+#define USB_DEVICE_ID_MTP		0x0002
+
 #define USB_VENDOR_ID_SUN		0x0430
 #define USB_DEVICE_ID_RARITAN_KVM_DONGLE	0xcdab
 
 #define USB_VENDOR_ID_SUNPLUS		0x04fc
 #define USB_DEVICE_ID_SUNPLUS_WDESKTOP	0x05d8
 
-#define USB_VENDOR_ID_TENX		0x1130
-#define USB_DEVICE_ID_TENX_IBUDDY1	0x0001
-#define USB_DEVICE_ID_TENX_IBUDDY2	0x0002
-
 #define USB_VENDOR_ID_THRUSTMASTER	0x044f
+
+#define USB_VENDOR_ID_TOUCHPACK		0x1bfd
+#define USB_DEVICE_ID_TOUCHPACK_RTS	0x1688
 
 #define USB_VENDOR_ID_TOPMAX		0x0663
 #define USB_DEVICE_ID_TOPMAX_COBRAPAD	0x0103

drivers/hid/hid-input.c

···
 /*
  *  Copyright (c) 2000-2001 Vojtech Pavlik
- *  Copyright (c) 2006-2007 Jiri Kosina
+ *  Copyright (c) 2006-2010 Jiri Kosina
  *
  *  HID to Linux Input mapping
  */
···
 		break;
 
 	case HID_UP_BUTTON:
-		code = ((usage->hid - 1) & 0xf);
+		code = ((usage->hid - 1) & HID_USAGE);
 
 		switch (field->application) {
 		case HID_GD_MOUSE:
 		case HID_GD_POINTER:  code += 0x110; break;
-		case HID_GD_JOYSTICK: code += 0x120; break;
+		case HID_GD_JOYSTICK:
+				      if (code <= 0xf)
+					      code += BTN_JOYSTICK;
+				      else
+					      code += BTN_TRIGGER_HAPPY;
+				      break;
 		case HID_GD_GAMEPAD:  code += 0x130; break;
 		default:
 			switch (field->physical) {
···
 		case 0x192: map_key_clear(KEY_CALC);		break;
 		case 0x194: map_key_clear(KEY_FILE);		break;
 		case 0x196: map_key_clear(KEY_WWW);		break;
+		case 0x199: map_key_clear(KEY_CHAT);		break;
 		case 0x19c: map_key_clear(KEY_LOGOFF);		break;
 		case 0x19e: map_key_clear(KEY_COFFEE);		break;
 		case 0x1a6: map_key_clear(KEY_HELP);		break;

drivers/hid/hid-lg.c

···
 #define LG_FF			0x200
 #define LG_FF2			0x400
 #define LG_RDESC_REL_ABS	0x800
+#define LG_FF3			0x1000
 
 /*
  * Certain Logitech keyboards send in report #3 keys which are far
···
 		goto err_free;
 	}
 
-	if (quirks & (LG_FF | LG_FF2))
+	if (quirks & (LG_FF | LG_FF2 | LG_FF3))
 		connect_mask &= ~HID_CONNECT_FF;
 
 	ret = hid_hw_start(hdev, connect_mask);
···
 		lgff_init(hdev);
 	if (quirks & LG_FF2)
 		lg2ff_init(hdev);
+	if (quirks & LG_FF3)
+		lg3ff_init(hdev);
 
 	return 0;
 err_free:
···
 		.driver_data = LG_FF },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
 		.driver_data = LG_FF2 },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
+		.driver_data = LG_FF3 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
 		.driver_data = LG_RDESC_REL_ABS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),

drivers/hid/hid-lg.h

···
 static inline int lg2ff_init(struct hid_device *hdev) { return -1; }
 #endif
 
+#ifdef CONFIG_LOGIG940_FF
+int lg3ff_init(struct hid_device *hdev);
+#else
+static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
+#endif
+
 #endif

drivers/hid/hid-lg3ff.c

···
+/*
+ *  Force feedback support for Logitech Flight System G940
+ *
+ *  Copyright (c) 2009 Gary Stein <[e-mail]>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <linux/input.h>
+#include <linux/usb.h>
+#include <linux/hid.h>
+
+#include "usbhid/usbhid.h"
+#include "hid-lg.h"
+
+/*
+ * G940 Theory of Operation (from experimentation)
+ *
+ * There are 63 fields (only 3 of them currently used)
+ * 0 - seems to be command field
+ * 1 - 30 deal with the x axis
+ * 31 -60 deal with the y axis
+ *
+ * Field 1 is x axis constant force
+ * Field 31 is y axis constant force
+ *
+ * other interesting fields 1,2,3,4 on x axis
+ * (same for 31,32,33,34 on y axis)
+ *
+ * 0 0 127 127 makes the joystick autocenter hard
+ *
+ * 127 0 127 127 makes the joystick loose on the right,
+ * but stops all movemnt left
+ *
+ * -127 0 -127 -127 makes the joystick loose on the left,
+ * but stops all movement right
+ *
+ * 0 0 -127 -127 makes the joystick rattle very hard
+ *
+ * I'm sure these are effects that I don't know enough about them
+ */
+
+struct lg3ff_device {
+	struct hid_report *report;
+};
+
+static int hid_lg3ff_play(struct input_dev *dev, void *data,
+			 struct ff_effect *effect)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+	int x, y;
+
+/*
+ * Maxusage should always be 63 (maximum fields)
+ * likely a better way to ensure this data is clean
+ */
+	memset(report->field[0]->value, 0, sizeof(__s32)*report->field[0]->maxusage);
+
+	switch (effect->type) {
+	case FF_CONSTANT:
+/*
+ * Already clamped in ff_memless
+ * 0 is center (different then other logitech)
+ */
+		x = effect->u.ramp.start_level;
+		y = effect->u.ramp.end_level;
+
+		/* send command byte */
+		report->field[0]->value[0] = 0x51;
+
+/*
+ * Sign backwards from other Force3d pro
+ * which get recast here in two's complement 8 bits
+ */
+		report->field[0]->value[1] = (unsigned char)(-x);
+		report->field[0]->value[31] = (unsigned char)(-y);
+
+		usbhid_submit_report(hid, report, USB_DIR_OUT);
+		break;
+	}
+	return 0;
+}
+static void hid_lg3ff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+
+/*
+ * Auto Centering probed from device
+ * NOTE: deadman's switch on G940 must be covered
+ * for effects to work
+ */
+	report->field[0]->value[0] = 0x51;
+	report->field[0]->value[1] = 0x00;
+	report->field[0]->value[2] = 0x00;
+	report->field[0]->value[3] = 0x7F;
+	report->field[0]->value[4] = 0x7F;
+	report->field[0]->value[31] = 0x00;
+	report->field[0]->value[32] = 0x00;
+	report->field[0]->value[33] = 0x7F;
+	report->field[0]->value[34] = 0x7F;
+
+	usbhid_submit_report(hid, report, USB_DIR_OUT);
+}
+
+
+static const signed short ff3_joystick_ac[] = {
+	FF_CONSTANT,
+	FF_AUTOCENTER,
+	-1
+};
+
+int lg3ff_init(struct hid_device *hid)
+{
+	struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+	struct input_dev *dev = hidinput->input;
+	struct hid_report *report;
+	struct hid_field *field;
+	const signed short *ff_bits = ff3_joystick_ac;
+	int error;
+	int i;
+
+	/* Find the report to use */
+	if (list_empty(report_list)) {
+		err_hid("No output report found");
+		return -1;
+	}
+
+	/* Check that the report looks ok */
+	report = list_entry(report_list->next, struct hid_report, list);
+	if (!report) {
+		err_hid("NULL output report");
+		return -1;
+	}
+
+	field = report->field[0];
+	if (!field) {
+		err_hid("NULL field");
+		return -1;
+	}
+
+	/* Assume single fixed device G940 */
+	for (i = 0; ff_bits[i] >= 0; i++)
+		set_bit(ff_bits[i], dev->ffbit);
+
+	error = input_ff_create_memless(dev, NULL, hid_lg3ff_play);
+	if (error)
+		return error;
+
+	if (test_bit(FF_AUTOCENTER, dev->ffbit))
+		dev->ff->set_autocenter = hid_lg3ff_set_autocenter;
+
+	dev_info(&hid->dev, "Force feedback for Logitech Flight System G940 by "
+			"Gary Stein <[e-mail]>\n");
+	return 0;
+}
+

drivers/hid/hid-lgff.c

···
 	{ 0x046d, 0xc219, ff_rumble },
 	{ 0x046d, 0xc283, ff_joystick },
 	{ 0x046d, 0xc286, ff_joystick_ac },
+	{ 0x046d, 0xc287, ff_joystick_ac },
 	{ 0x046d, 0xc293, ff_joystick },
 	{ 0x046d, 0xc294, ff_wheel },
 	{ 0x046d, 0xc295, ff_joystick },

drivers/hid/hid-magicmouse.c

···
+/*
+ *   Apple "Magic" Wireless Mouse driver
+ *
+ *   Copyright (c) 2010 Michael Poole <[e-mail]>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "hid-ids.h"
+
+static bool emulate_3button = true;
+module_param(emulate_3button, bool, 0644);
+MODULE_PARM_DESC(emulate_3button, "Emulate a middle button");
+
+static int middle_button_start = -350;
+static int middle_button_stop = +350;
+
+static bool emulate_scroll_wheel = true;
+module_param(emulate_scroll_wheel, bool, 0644);
+MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel");
+
+static bool report_touches = true;
+module_param(report_touches, bool, 0644);
+MODULE_PARM_DESC(report_touches, "Emit touch records (otherwise, only use them for emulation)");
+
+static bool report_undeciphered;
+module_param(report_undeciphered, bool, 0644);
+MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event");
+
+#define TOUCH_REPORT_ID   0x29
+/* These definitions are not precise, but they're close enough.  (Bits
+ * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
+ * to be some kind of bit mask -- 0x20 may be a near-field reading,
+ * and 0x40 is actual contact, and 0x10 may be a start/stop or change
+ * indication.)
+ */
+#define TOUCH_STATE_MASK  0xf0
+#define TOUCH_STATE_NONE  0x00
+#define TOUCH_STATE_START 0x30
+#define TOUCH_STATE_DRAG  0x40
+
+/**
+ * struct magicmouse_sc - Tracks Magic Mouse-specific data.
+ * @input: Input device through which we report events.
+ * @quirks: Currently unused.
+ * @last_timestamp: Timestamp from most recent (18-bit) touch report
+ *     (units of milliseconds over short windows, but seems to
+ *     increase faster when there are no touches).
+ * @delta_time: 18-bit difference between the two most recent touch
+ *     reports from the mouse.
+ * @ntouches: Number of touches in most recent touch report.
+ * @scroll_accel: Number of consecutive scroll motions.
+ * @scroll_jiffies: Time of last scroll motion.
+ * @touches: Most recent data for a touch, indexed by tracking ID.
+ * @tracking_ids: Mapping of current touch input data to @touches.
+ */
+struct magicmouse_sc {
+	struct input_dev *input;
+	unsigned long quirks;
+
+	int last_timestamp;
+	int delta_time;
+	int ntouches;
+	int scroll_accel;
+	unsigned long scroll_jiffies;
+
+	struct {
+		short x;
+		short y;
+		short scroll_y;
+		u8 size;
+	} touches[16];
+	int tracking_ids[16];
+};
+
+static int magicmouse_firm_touch(struct magicmouse_sc *msc)
+{
+	int touch = -1;
+	int ii;
+
+	/* If there is only one "firm" touch, set touch to its
+	 * tracking ID.
+	 */
+	for (ii = 0; ii < msc->ntouches; ii++) {
+		int idx = msc->tracking_ids[ii];
+		if (msc->touches[idx].size < 8) {
+			/* Ignore this touch. */
+		} else if (touch >= 0) {
+			touch = -1;
+			break;
+		} else {
+			touch = idx;
+		}
+	}
+
+	return touch;
+}
+
+static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state)
+{
+	int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 |
+		test_bit(BTN_RIGHT, msc->input->key) << 1 |
+		test_bit(BTN_MIDDLE, msc->input->key) << 2;
+
+	if (emulate_3button) {
+		int id;
+
+		/* If some button was pressed before, keep it held
+		 * down.  Otherwise, if there's exactly one firm
+		 * touch, use that to override the mouse's guess.
+		 */
+		if (state == 0) {
+			/* The button was released. */
+		} else if (last_state != 0) {
+			state = last_state;
+		} else if ((id = magicmouse_firm_touch(msc)) >= 0) {
+			int x = msc->touches[id].x;
+			if (x < middle_button_start)
+				state = 1;
+			else if (x > middle_button_stop)
+				state = 2;
+			else
+				state = 4;
+		} /* else: we keep the mouse's guess */
+
+		input_report_key(msc->input, BTN_MIDDLE, state & 4);
+	}
+
+	input_report_key(msc->input, BTN_LEFT, state & 1);
+	input_report_key(msc->input, BTN_RIGHT, state & 2);
+
+	if (state != last_state)
+		msc->scroll_accel = 0;
+}
+
+static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata)
+{
+	struct input_dev *input = msc->input;
+	__s32 x_y = tdata[0] << 8 | tdata[1] << 16 | tdata[2] << 24;
+	int misc = tdata[5] | tdata[6] << 8;
+	int id = (misc >> 6) & 15;
+	int x = x_y << 12 >> 20;
+	int y = -(x_y >> 20);
+
+	/* Store tracking ID and other fields. */
+	msc->tracking_ids[raw_id] = id;
+	msc->touches[id].x = x;
+	msc->touches[id].y = y;
+	msc->touches[id].size = misc & 63;
+
+	/* If requested, emulate a scroll wheel by detecting small
+	 * vertical touch motions along the middle of the mouse.
+	 */
+	if (emulate_scroll_wheel &&
+	    middle_button_start < x && x < middle_button_stop) {
+		static const int accel_profile[] = {
+			256, 228, 192, 160, 128, 96, 64, 32,
+		};
+		unsigned long now = jiffies;
+		int step = msc->touches[id].scroll_y - y;
+
+		/* Reset acceleration after half a second. */
+		if (time_after(now, msc->scroll_jiffies + HZ / 2))
+			msc->scroll_accel = 0;
+
+		/* Calculate and apply the scroll motion. */
+		switch (tdata[7] & TOUCH_STATE_MASK) {
+		case TOUCH_STATE_START:
+			msc->touches[id].scroll_y = y;
+			msc->scroll_accel = min_t(int, msc->scroll_accel + 1,
+						ARRAY_SIZE(accel_profile) - 1);
+			break;
+		case TOUCH_STATE_DRAG:
+			step = step / accel_profile[msc->scroll_accel];
+			if (step != 0) {
+				msc->touches[id].scroll_y = y;
+				msc->scroll_jiffies = now;
+				input_report_rel(input, REL_WHEEL, step);
+			}
+			break;
+		}
+	}
+
+	/* Generate the input events for this touch. */
+	if (report_touches) {
+		int orientation = (misc >> 10) - 32;
+
+		input_report_abs(input, ABS_MT_TRACKING_ID, id);
+		input_report_abs(input, ABS_MT_TOUCH_MAJOR, tdata[3]);
+		input_report_abs(input, ABS_MT_TOUCH_MINOR, tdata[4]);
+		input_report_abs(input, ABS_MT_ORIENTATION, orientation);
+		input_report_abs(input, ABS_MT_POSITION_X, x);
+		input_report_abs(input, ABS_MT_POSITION_Y, y);
+
+		if (report_undeciphered)
+			input_event(input, EV_MSC, MSC_RAW, tdata[7]);
+
+		input_mt_sync(input);
+	}
+}
+
+static int magicmouse_raw_event(struct hid_device *hdev,
+		struct hid_report *report, u8 *data, int size)
+{
+	struct magicmouse_sc *msc = hid_get_drvdata(hdev);
+	struct input_dev *input = msc->input;
+	int x, y, ts, ii, clicks;
+
+	switch (data[0]) {
+	case 0x10:
+		if (size != 6)
+			return 0;
+		x = (__s16)(data[2] | data[3] << 8);
+		y = (__s16)(data[4] | data[5] << 8);
+		clicks = data[1];
+		break;
+	case TOUCH_REPORT_ID:
+		/* Expect six bytes of prefix, and N*8 bytes of touch data. */
+		if (size < 6 || ((size - 6) % 8) != 0)
+			return 0;
+		ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
+		msc->delta_time = (ts - msc->last_timestamp) & 0x3ffff;
+		msc->last_timestamp = ts;
+		msc->ntouches = (size - 6) / 8;
+		for (ii = 0; ii < msc->ntouches; ii++)
+			magicmouse_emit_touch(msc, ii, data + ii * 8 + 6);
+		/* When emulating three-button mode, it is important
+		 * to have the current touch information before
+		 * generating a click event.
+		 */
+		x = (signed char)data[1];
+		y = (signed char)data[2];
+		clicks = data[3];
+		break;
+	case 0x20: /* Theoretically battery status (0-100), but I have
+		    * never seen it -- maybe it is only upon request.
+		    */
+	case 0x60: /* Unknown, maybe laser on/off. */
+	case 0x61: /* Laser reflection status change.
+		    * data[1]: 0 = spotted, 1 = lost
+		    */
+	default:
+		return 0;
+	}
+
+	magicmouse_emit_buttons(msc, clicks & 3);
+	input_report_rel(input, REL_X, x);
+	input_report_rel(input, REL_Y, y);
+	input_sync(input);
+	return 1;
+}
+
+static int magicmouse_input_open(struct input_dev *dev)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+
+	return hid->ll_driver->open(hid);
+}
+
+static void magicmouse_input_close(struct input_dev *dev)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+
+	hid->ll_driver->close(hid);
+}
+
+static void magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev)
+{
+	input_set_drvdata(input, hdev);
+	input->event = hdev->ll_driver->hidinput_input_event;
+	input->open = magicmouse_input_open;
+	input->close = magicmouse_input_close;
+
+	input->name = hdev->name;
+	input->phys = hdev->phys;
+	input->uniq = hdev->uniq;
+	input->id.bustype = hdev->bus;
+	input->id.vendor = hdev->vendor;
+	input->id.product = hdev->product;
+	input->id.version = hdev->version;
+	input->dev.parent = hdev->dev.parent;
+
+	__set_bit(EV_KEY, input->evbit);
+	__set_bit(BTN_LEFT, input->keybit);
+	__set_bit(BTN_RIGHT, input->keybit);
+	if (emulate_3button)
+		__set_bit(BTN_MIDDLE, input->keybit);
+	__set_bit(BTN_TOOL_FINGER, input->keybit);
+
+	__set_bit(EV_REL, input->evbit);
+	__set_bit(REL_X, input->relbit);
+	__set_bit(REL_Y, input->relbit);
+	if (emulate_scroll_wheel)
+		__set_bit(REL_WHEEL, input->relbit);
+
+	if (report_touches) {
+		__set_bit(EV_ABS, input->evbit);
+
+		input_set_abs_params(input, ABS_MT_TRACKING_ID, 0, 15, 0, 0);
+		input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0);
+		input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0);
+		input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0);
+		input_set_abs_params(input, ABS_MT_POSITION_X, -1100, 1358,
+				4, 0);
+		/* Note: Touch Y position from the device is inverted relative
+		 * to how pointer motion is reported (and relative to how USB
+		 * HID recommends the coordinates work).  This driver keeps
+		 * the origin at the same position, and just uses the additive
+		 * inverse of the reported Y.
+		 */
+		input_set_abs_params(input, ABS_MT_POSITION_Y, -1589, 2047,
+				4, 0);
+	}
+
+	if (report_undeciphered) {
+		__set_bit(EV_MSC, input->evbit);
+		__set_bit(MSC_RAW, input->mscbit);
+	}
+}
+
+static int magicmouse_probe(struct hid_device *hdev,
+	const struct hid_device_id *id)
+{
+	__u8 feature_1[] = { 0xd7, 0x01 };
+	__u8 feature_2[] = { 0xf8, 0x01, 0x32 };
+	struct input_dev *input;
+	struct magicmouse_sc *msc;
+	struct hid_report *report;
+	int ret;
+
+	msc = kzalloc(sizeof(*msc), GFP_KERNEL);
+	if (msc == NULL) {
+		dev_err(&hdev->dev, "can't alloc magicmouse descriptor\n");
+		return -ENOMEM;
+	}
+
+	msc->quirks = id->driver_data;
+	hid_set_drvdata(hdev, msc);
+
+	ret = hid_parse(hdev);
+	if (ret) {
+		dev_err(&hdev->dev, "magicmouse hid parse failed\n");
+		goto err_free;
+	}
+
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (ret) {
+		dev_err(&hdev->dev, "magicmouse hw start failed\n");
+		goto err_free;
+	}
+
+	report = hid_register_report(hdev, HID_INPUT_REPORT, TOUCH_REPORT_ID);
+	if (!report) {
+		dev_err(&hdev->dev, "unable to register touch report\n");
+		ret = -ENOMEM;
+		goto err_stop_hw;
+	}
+	report->size = 6;
+
+	ret = hdev->hid_output_raw_report(hdev, feature_1, sizeof(feature_1),
+			HID_FEATURE_REPORT);
+	if (ret != sizeof(feature_1)) {
+		dev_err(&hdev->dev, "unable to request touch data (1:%d)\n",
+				ret);
+		goto err_stop_hw;
+	}
+	ret = hdev->hid_output_raw_report(hdev, feature_2,
+			sizeof(feature_2), HID_FEATURE_REPORT);
+	if (ret != sizeof(feature_2)) {
+		dev_err(&hdev->dev, "unable to request touch data (2:%d)\n",
+				ret);
+		goto err_stop_hw;
+	}
+
+	input = input_allocate_device();
+	if (!input) {
+		dev_err(&hdev->dev, "can't alloc input device\n");
+		ret = -ENOMEM;
+		goto err_stop_hw;
+	}
+	magicmouse_setup_input(input, hdev);
+
+	ret = input_register_device(input);
+	if (ret) {
+		dev_err(&hdev->dev, "input device registration failed\n");
+		goto err_input;
+	}
+	msc->input = input;
+
+	return 0;
+err_input:
+	input_free_device(input);
+err_stop_hw:
+	hid_hw_stop(hdev);
+err_free:
+	kfree(msc);
+	return ret;
+}
+
+static void magicmouse_remove(struct hid_device *hdev)
+{
+	hid_hw_stop(hdev);
+	kfree(hid_get_drvdata(hdev));
+}
+
+static const struct hid_device_id magic_mice[] = {
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE),
+		.driver_data = 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, magic_mice);
+
+static struct hid_driver magicmouse_driver = {
+	.name = "magicmouse",
+	.id_table = magic_mice,
+	.probe = magicmouse_probe,
+	.remove = magicmouse_remove,
+	.raw_event = magicmouse_raw_event,
+};
+
+static int __init magicmouse_init(void)
+{
+	int ret;
+
+	ret = hid_register_driver(&magicmouse_driver);
+	if (ret)
+		printk(KERN_ERR "can't register magicmouse driver\n");
+
+	return ret;
+}
+
+static void __exit magicmouse_exit(void)
+{
+	hid_unregister_driver(&magicmouse_driver);
+}
+
+module_init(magicmouse_init);
+module_exit(magicmouse_exit);
+MODULE_LICENSE("GPL");

drivers/hid/hid-mosart.c

···
+/*
+ *  HID driver for the multitouch panel on the ASUS EeePC T91MT
+ *
+ *  Copyright (c) 2009-2010 Stephane Chatty <[e-mail]>
+ *  Copyright (c) 2010 Teemu Tuominen <[e-mail]>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include "usbhid/usbhid.h"
+
+MODULE_AUTHOR("Stephane Chatty <[e-mail]>");
+MODULE_DESCRIPTION("MosArt dual-touch panel");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct mosart_data {
+	__u16 x, y;
+	__u8 id;
+	bool valid;		/* valid finger data, or just placeholder? */
+	bool first;		/* is this the first finger in this frame? */
+	bool activity_now;	/* at least one active finger in this frame? */
+	bool activity;		/* at least one active finger previously? */
+};
+
+static int mosart_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	switch (usage->hid & HID_USAGE_PAGE) {
+
+	case HID_UP_GENDESK:
+		switch (usage->hid) {
+		case HID_GD_X:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_X);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_X,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		case HID_GD_Y:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_Y);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_Y,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		}
+		return 0;
+
+	case HID_UP_DIGITIZER:
+		switch (usage->hid) {
+		case HID_DG_CONFIDENCE:
+		case HID_DG_TIPSWITCH:
+		case HID_DG_INPUTMODE:
+		case HID_DG_DEVICEINDEX:
+		case HID_DG_CONTACTCOUNT:
+		case HID_DG_CONTACTMAX:
+		case HID_DG_TIPPRESSURE:
+		case HID_DG_WIDTH:
+		case HID_DG_HEIGHT:
+			return -1;
+		case HID_DG_INRANGE:
+			/* touchscreen emulation */
+			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+			return 1;
+
+		case HID_DG_CONTACTID:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TRACKING_ID);
+			return 1;
+
+		}
+		return 0;
+
+	case 0xff000000:
+		/* ignore HID features */
+		return -1;
+	}
+
+	return 0;
+}
+
+static int mosart_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if (usage->type == EV_KEY || usage->type == EV_ABS)
+		clear_bit(usage->code, *bit);
+
+	return 0;
+}
+
+/*
+ * this function is called when a whole finger has been parsed,
+ * so that it can decide what to send to the input layer.
+ */
+static void mosart_filter_event(struct mosart_data *td, struct input_dev *input)
+{
+	td->first = !td->first; /* touchscreen emulation */
+
+	if (!td->valid) {
+		/*
+		 * touchscreen emulation: if no finger in this frame is valid
+		 * and there previously was finger activity, this is a release
+		 */ 
+		if (!td->first && !td->activity_now && td->activity) {
+			input_event(input, EV_KEY, BTN_TOUCH, 0);
+			td->activity = false;
+		}
+		return;
+	}
+
+	input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
+	input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
+	input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
+
+	input_mt_sync(input);
+	td->valid = false;
+
+	/* touchscreen emulation: if first active finger in this frame... */
+	if (!td->activity_now) {
+		/* if there was no previous activity, emit touch event */
+		if (!td->activity) {
+			input_event(input, EV_KEY, BTN_TOUCH, 1);
+			td->activity = true;
+		}
+		td->activity_now = true;
+		/* and in any case this is our preferred finger */
+		input_event(input, EV_ABS, ABS_X, td->x);
+		input_event(input, EV_ABS, ABS_Y, td->y);
+	}
+}
+
+
+static int mosart_event(struct hid_device *hid, struct hid_field *field,
+				struct hid_usage *usage, __s32 value)
+{
+	struct mosart_data *td = hid_get_drvdata(hid);
+
+	if (hid->claimed & HID_CLAIMED_INPUT) {
+		struct input_dev *input = field->hidinput->input;
+		switch (usage->hid) {
+		case HID_DG_INRANGE:
+			td->valid = !!value;
+			break;
+		case HID_GD_X:
+			td->x = value;
+			break;
+		case HID_GD_Y:
+			td->y = value;
+			mosart_filter_event(td, input);
+			break;
+		case HID_DG_CONTACTID:
+			td->id = value;
+			break;
+		case HID_DG_CONTACTCOUNT:
+			/* touch emulation: this is the last field in a frame */
+			td->first = false;
+			td->activity_now = false;
+			break;
+		case HID_DG_CONFIDENCE:
+		case HID_DG_TIPSWITCH:
+			/* avoid interference from generic hidinput handling */
+			break;
+
+		default:
+			/* fallback to the generic hidinput handling */
+			return 0;
+		}
+	}
+
+	/* we have handled the hidinput part, now remains hiddev */
+	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+		hid->hiddev_hid_event(hid, field, usage, value);
+
+	return 1;
+}
+
+static int mosart_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+	struct mosart_data *td;
+
+
+	td = kmalloc(sizeof(struct mosart_data), GFP_KERNEL);
+	if (!td) {
+		dev_err(&hdev->dev, "cannot allocate MosArt data\n");
+		return -ENOMEM;
+	}
+	td->valid = false;
+	td->activity = false;
+	td->activity_now = false;
+	td->first = false;
+	hid_set_drvdata(hdev, td);
+
+	/* currently, it's better to have one evdev device only */
+#if 0
+	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+#endif
+
+	ret = hid_parse(hdev);
+	if (ret == 0)
+		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+	if (ret == 0) {
+		struct hid_report_enum *re = hdev->report_enum
+						+ HID_FEATURE_REPORT;
+		struct hid_report *r = re->report_id_hash[7];
+
+		r->field[0]->value[0] = 0x02;
+		usbhid_submit_report(hdev, r, USB_DIR_OUT);
+	} else 
+		kfree(td);
+
+	return ret;
+}
+
+static void mosart_remove(struct hid_device *hdev)
+{
+	hid_hw_stop(hdev);
+	kfree(hid_get_drvdata(hdev));
+	hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id mosart_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, mosart_devices);
+
+static const struct hid_usage_id mosart_grabbed_usages[] = {
+	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver mosart_driver = {
+	.name = "mosart",
+	.id_table = mosart_devices,
+	.probe = mosart_probe,
+	.remove = mosart_remove,
+	.input_mapping = mosart_input_mapping,
+	.input_mapped = mosart_input_mapped,
+	.usage_table = mosart_grabbed_usages,
+	.event = mosart_event,
+};
+
+static int __init mosart_init(void)
+{
+	return hid_register_driver(&mosart_driver);
+}
+
+static void __exit mosart_exit(void)
+{
+	hid_unregister_driver(&mosart_driver);
+}
+
+module_init(mosart_init);
+module_exit(mosart_exit);
+

drivers/hid/hid-ntrig.c

···
 					EV_KEY, (c))
 
 struct ntrig_data {
-	__s32 x, y, id, w, h;
-	char reading_a_point, found_contact_id;
-	char pen_active;
-	char finger_active;
-	char inverted;
+	/* Incoming raw values for a single contact */
+	__u16 x, y, w, h;
+	__u16 id;
+	__u8 confidence;
+
+	bool reading_mt;
+	__u8 first_contact_confidence;
+
+	__u8 mt_footer[4];
+	__u8 mt_foot_count;
 };
 
 /*
···
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
-	switch (usage->hid & HID_USAGE_PAGE) {
+	/* No special mappings needed for the pen and single touch */
+	if (field->physical)
+		return 0;
 
+	switch (usage->hid & HID_USAGE_PAGE) {
 	case HID_UP_GENDESK:
 		switch (usage->hid) {
 		case HID_GD_X:
···
 	case HID_UP_DIGITIZER:
 		switch (usage->hid) {
 		/* we do not want to map these for now */
-		case HID_DG_CONTACTID: /* value is useless */
+		case HID_DG_CONTACTID: /* Not trustworthy, squelch for now */
 		case HID_DG_INPUTMODE:
 		case HID_DG_DEVICEINDEX:
-		case HID_DG_CONTACTCOUNT:
 		case HID_DG_CONTACTMAX:
 			return -1;
-
-		/* original mapping by Rafi Rubin */
-		case HID_DG_CONFIDENCE:
-			nt_map_key_clear(BTN_TOOL_DOUBLETAP);
-			return 1;
 
 		/* width/height mapped on TouchMajor/TouchMinor/Orientation */
 		case HID_DG_WIDTH:
···
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
+	/* No special mappings needed for the pen and single touch */
+	if (field->physical)
+		return 0;
+
 	if (usage->type == EV_KEY || usage->type == EV_REL
 			|| usage->type == EV_ABS)
 		clear_bit(usage->code, *bit);
···
 	struct input_dev *input = field->hidinput->input;
 	struct ntrig_data *nd = hid_get_drvdata(hid);
 
+	/* No special handling needed for the pen */
+	if (field->application == HID_DG_PEN)
+		return 0;
+
         if (hid->claimed & HID_CLAIMED_INPUT) {
 		switch (usage->hid) {
-
-		case HID_DG_INRANGE:
-			if (field->application & 0x3)
-				nd->pen_active = (value != 0);
-			else
-				nd->finger_active = (value != 0);
-			return 0;
-
-		case HID_DG_INVERT:
-			nd->inverted = value;
-			return 0;
-
+		case 0xff000001:
+			/* Tag indicating the start of a multitouch group */
+			nd->reading_mt = 1;
+			nd->first_contact_confidence = 0;
+			break;
+		case HID_DG_CONFIDENCE:
+			nd->confidence = value;
+			break;
 		case HID_GD_X:
 			nd->x = value;
-			nd->reading_a_point = 1;
+			/* Clear the contact footer */
+			nd->mt_foot_count = 0;
 			break;
 		case HID_GD_Y:
 			nd->y = value;
 			break;
 		case HID_DG_CONTACTID:
 			nd->id = value;
-			/* we receive this only when in multitouch mode */
-			nd->found_contact_id = 1;
 			break;
 		case HID_DG_WIDTH:
 			nd->w = value;
···
 			 * report received in a finger event. We want
 			 * to emit a normal (X, Y) position
 			 */
-			if (!nd->found_contact_id) {
-				if (nd->pen_active && nd->finger_active) {
-					input_report_key(input, BTN_TOOL_DOUBLETAP, 0);
-					input_report_key(input, BTN_TOOL_DOUBLETAP, 1);
-				}
+			if (!nd->reading_mt) {
+				input_report_key(input, BTN_TOOL_DOUBLETAP,
+						 (nd->confidence != 0));
 				input_event(input, EV_ABS, ABS_X, nd->x);
 				input_event(input, EV_ABS, ABS_Y, nd->y);
-			}
-			break;
-		case HID_DG_TIPPRESSURE:
-			/*
-			 * when in single touch mode, this is the last
-			 * report received in a pen event. We want
-			 * to emit a normal (X, Y) position
-			 */
-			if (! nd->found_contact_id) {
-				if (nd->pen_active && nd->finger_active) {
-					input_report_key(input,
-							nd->inverted ? BTN_TOOL_RUBBER : BTN_TOOL_PEN
-							, 0);
-					input_report_key(input,
-							nd->inverted ? BTN_TOOL_RUBBER : BTN_TOOL_PEN
-							, 1);
-				}
-				input_event(input, EV_ABS, ABS_X, nd->x);
-				input_event(input, EV_ABS, ABS_Y, nd->y);
-				input_event(input, EV_ABS, ABS_PRESSURE, value);
 			}
 			break;
 		case 0xff000002:
···
 			 * this usage tells if the contact point is real
 			 * or a placeholder
 			 */
-			if (!nd->reading_a_point || value != 1)
+
+			/* Shouldn't get more than 4 footer packets, so skip */
+			if (nd->mt_foot_count >= 4)
 				break;
+
+			nd->mt_footer[nd->mt_foot_count++] = value;
+
+			/* if the footer isn't complete break */
+			if (nd->mt_foot_count != 4)
+				break;
+
+			/* Pen activity signal, trigger end of touch. */
+			if (nd->mt_footer[2]) {
+				nd->confidence = 0;
+				break;
+			}
+
+			/* If the contact was invalid */
+			if (!(nd->confidence && nd->mt_footer[0])
+					|| nd->w <= 250
+					|| nd->h <= 190) {
+				nd->confidence = 0;
+				break;
+			}
+
 			/* emit a normal (X, Y) for the first point only */
 			if (nd->id == 0) {
+				nd->first_contact_confidence = nd->confidence;
 				input_event(input, EV_ABS, ABS_X, nd->x);
 				input_event(input, EV_ABS, ABS_Y, nd->y);
 			}
···
 						ABS_MT_TOUCH_MINOR, nd->w);
 			}
 			input_mt_sync(field->hidinput->input);
-			nd->reading_a_point = 0;
-			nd->found_contact_id = 0;
+			break;
+
+		case HID_DG_CONTACTCOUNT: /* End of a multitouch group */
+			if (!nd->reading_mt)
+				break;
+
+			nd->reading_mt = 0;
+
+			if (nd->first_contact_confidence) {
+				switch (value) {
+				case 0:	/* for single touch devices */
+				case 1:
+					input_report_key(input,
+							BTN_TOOL_DOUBLETAP, 1);
+					break;
+				case 2:
+					input_report_key(input,
+							BTN_TOOL_TRIPLETAP, 1);
+					break;
+				case 3:
+				default:
+					input_report_key(input,
+							BTN_TOOL_QUADTAP, 1);
+				}
+				input_report_key(input, BTN_TOUCH, 1);
+			} else {
+				input_report_key(input,
+						BTN_TOOL_DOUBLETAP, 0);
+				input_report_key(input,
+						BTN_TOOL_TRIPLETAP, 0);
+				input_report_key(input,
+						BTN_TOOL_QUADTAP, 0);
+			}
 			break;
 
 		default:
···
 	}
 
 	/* we have handled the hidinput part, now remains hiddev */
-        if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
-                hid->hiddev_hid_event(hid, field, usage, value);
+	if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_hid_event)
+		hid->hiddev_hid_event(hid, field, usage, value);
 
 	return 1;
 }
···
 {
 	int ret;
 	struct ntrig_data *nd;
+	struct hid_input *hidinput;
+	struct input_dev *input;
+
+	if (id->driver_data)
+		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
 
 	nd = kmalloc(sizeof(struct ntrig_data), GFP_KERNEL);
 	if (!nd) {
 		dev_err(&hdev->dev, "cannot allocate N-Trig data\n");
 		return -ENOMEM;
 	}
-	nd->reading_a_point = 0;
-	nd->found_contact_id = 0;
+
+	nd->reading_mt = 0;
 	hid_set_drvdata(hdev, nd);
 
 	ret = hid_parse(hdev);
-	if (!ret)
-		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (ret) {
+		dev_err(&hdev->dev, "parse failed\n");
+		goto err_free;
+	}
 
-	if (ret)
-		kfree (nd);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+	if (ret) {
+		dev_err(&hdev->dev, "hw start failed\n");
+		goto err_free;
+	}
 
+
+	list_for_each_entry(hidinput, &hdev->inputs, list) {
+		input = hidinput->input;
+		switch (hidinput->report->field[0]->application) {
+		case HID_DG_PEN:
+			input->name = "N-Trig Pen";
+			break;
+		case HID_DG_TOUCHSCREEN:
+			__clear_bit(BTN_TOOL_PEN, input->keybit);
+			/*
+			 * A little something special to enable
+			 * two and three finger taps.
+			 */
+			__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
+			__set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
+			__set_bit(BTN_TOOL_QUADTAP, input->keybit);
+			/*
+			 * The physical touchscreen (single touch)
+			 * input has a value for physical, whereas
+			 * the multitouch only has logical input
+			 * fields.
+			 */
+			input->name =
+				(hidinput->report->field[0]
+				 ->physical) ?
+				"N-Trig Touchscreen" :
+				"N-Trig MultiTouch";
+			break;
+		}
+	}
+
+	return 0;
+err_free:
+	kfree(nd);
 	return ret;
 }
 
···
 
 static const struct hid_usage_id ntrig_grabbed_usages[] = {
 	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
-	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1 }
 };
 
 static struct hid_driver ntrig_driver = {

drivers/hid/hid-ortek.c

···
+/*
+ *  HID driver for Ortek WKB-2000 (wireless keyboard + mouse trackpad).
+ *  Fixes LogicalMaximum error in USB report description, see
+ *  http://bugzilla.kernel.org/show_bug.cgi?id=14787
+ *
+ *  Copyright (c) 2010 Johnathon Harris <[e-mail]>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+static void ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+		unsigned int rsize)
+{
+	if (rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
+		dev_info(&hdev->dev, "Fixing up Ortek WKB-2000 "
+				"report descriptor.\n");
+		rdesc[55] = 0x92;
+	}
+}
+
+static const struct hid_device_id ortek_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, ortek_devices);
+
+static struct hid_driver ortek_driver = {
+	.name = "ortek",
+	.id_table = ortek_devices,
+	.report_fixup = ortek_report_fixup
+};
+
+static int __init ortek_init(void)
+{
+	return hid_register_driver(&ortek_driver);
+}
+
+static void __exit ortek_exit(void)
+{
+	hid_unregister_driver(&ortek_driver);
+}
+
+module_init(ortek_init);
+module_exit(ortek_exit);
+MODULE_LICENSE("GPL");

drivers/hid/hid-quanta.c

···
+/*
+ *  HID driver for Quanta Optical Touch dual-touch panels
+ *
+ *  Copyright (c) 2009-2010 Stephane Chatty <[e-mail]>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Stephane Chatty <[e-mail]>");
+MODULE_DESCRIPTION("Quanta dual-touch panel");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct quanta_data {
+	__u16 x, y;
+	__u8 id;
+	bool valid;		/* valid finger data, or just placeholder? */
+	bool first;		/* is this the first finger in this frame? */
+	bool activity_now;	/* at least one active finger in this frame? */
+	bool activity;		/* at least one active finger previously? */
+};
+
+static int quanta_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	switch (usage->hid & HID_USAGE_PAGE) {
+
+	case HID_UP_GENDESK:
+		switch (usage->hid) {
+		case HID_GD_X:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_X);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_X,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		case HID_GD_Y:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_Y);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_Y,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		}
+		return 0;
+
+	case HID_UP_DIGITIZER:
+		switch (usage->hid) {
+		case HID_DG_CONFIDENCE:
+		case HID_DG_TIPSWITCH:
+		case HID_DG_INPUTMODE:
+		case HID_DG_DEVICEINDEX:
+		case HID_DG_CONTACTCOUNT:
+		case HID_DG_CONTACTMAX:
+		case HID_DG_TIPPRESSURE:
+		case HID_DG_WIDTH:
+		case HID_DG_HEIGHT:
+			return -1;
+		case HID_DG_INRANGE:
+			/* touchscreen emulation */
+			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+			return 1;
+		case HID_DG_CONTACTID:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TRACKING_ID);
+			return 1;
+		}
+		return 0;
+
+	case 0xff000000:
+		/* ignore vendor-specific features */
+		return -1;
+	}
+
+	return 0;
+}
+
+static int quanta_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if (usage->type == EV_KEY || usage->type == EV_ABS)
+		clear_bit(usage->code, *bit);
+
+	return 0;
+}
+
+/*
+ * this function is called when a whole finger has been parsed,
+ * so that it can decide what to send to the input layer.
+ */
+static void quanta_filter_event(struct quanta_data *td, struct input_dev *input)
+{
+	
+	td->first = !td->first; /* touchscreen emulation */
+
+	if (!td->valid) {
+		/*
+		 * touchscreen emulation: if no finger in this frame is valid
+		 * and there previously was finger activity, this is a release
+		 */ 
+		if (!td->first && !td->activity_now && td->activity) {
+			input_event(input, EV_KEY, BTN_TOUCH, 0);
+			td->activity = false;
+		}
+		return;
+	}
+
+	input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
+	input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
+	input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
+
+	input_mt_sync(input);
+	td->valid = false;
+
+	/* touchscreen emulation: if first active finger in this frame... */
+	if (!td->activity_now) {
+		/* if there was no previous activity, emit touch event */
+		if (!td->activity) {
+			input_event(input, EV_KEY, BTN_TOUCH, 1);
+			td->activity = true;
+		}
+		td->activity_now = true;
+		/* and in any case this is our preferred finger */
+		input_event(input, EV_ABS, ABS_X, td->x);
+		input_event(input, EV_ABS, ABS_Y, td->y);
+	}
+}
+
+
+static int quanta_event(struct hid_device *hid, struct hid_field *field,
+				struct hid_usage *usage, __s32 value)
+{
+	struct quanta_data *td = hid_get_drvdata(hid);
+
+	if (hid->claimed & HID_CLAIMED_INPUT) {
+		struct input_dev *input = field->hidinput->input;
+
+		switch (usage->hid) {
+		case HID_DG_INRANGE:
+			td->valid = !!value;
+			break;
+		case HID_GD_X:
+			td->x = value;
+			break;
+		case HID_GD_Y:
+			td->y = value;
+			quanta_filter_event(td, input);
+			break;
+		case HID_DG_CONTACTID:
+			td->id = value;
+			break;
+		case HID_DG_CONTACTCOUNT:
+			/* touch emulation: this is the last field in a frame */
+			td->first = false;
+			td->activity_now = false;
+			break;
+		case HID_DG_CONFIDENCE:
+		case HID_DG_TIPSWITCH:
+			/* avoid interference from generic hidinput handling */
+			break;
+
+		default:
+			/* fallback to the generic hidinput handling */
+			return 0;
+		}
+	}
+
+	/* we have handled the hidinput part, now remains hiddev */
+	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+		hid->hiddev_hid_event(hid, field, usage, value);
+
+	return 1;
+}
+
+static int quanta_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+	struct quanta_data *td;
+
+	td = kmalloc(sizeof(struct quanta_data), GFP_KERNEL);
+	if (!td) {
+		dev_err(&hdev->dev, "cannot allocate Quanta Touch data\n");
+		return -ENOMEM;
+	}
+	td->valid = false;
+	td->activity = false;
+	td->activity_now = false;
+	td->first = false;
+	hid_set_drvdata(hdev, td);
+
+	ret = hid_parse(hdev);
+	if (!ret)
+		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+	if (ret)
+		kfree(td);
+
+	return ret;
+}
+
+static void quanta_remove(struct hid_device *hdev)
+{
+	hid_hw_stop(hdev);
+	kfree(hid_get_drvdata(hdev));
+	hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id quanta_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+			USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, quanta_devices);
+
+static const struct hid_usage_id quanta_grabbed_usages[] = {
+	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver quanta_driver = {
+	.name = "quanta-touch",
+	.id_table = quanta_devices,
+	.probe = quanta_probe,
+	.remove = quanta_remove,
+	.input_mapping = quanta_input_mapping,
+	.input_mapped = quanta_input_mapped,
+	.usage_table = quanta_grabbed_usages,
+	.event = quanta_event,
+};
+
+static int __init quanta_init(void)
+{
+	return hid_register_driver(&quanta_driver);
+}
+
+static void __exit quanta_exit(void)
+{
+	hid_unregister_driver(&quanta_driver);
+}
+
+module_init(quanta_init);
+module_exit(quanta_exit);
+

drivers/hid/hid-sony.c

···
  * to "operational".  Without this, the ps3 controller will not report any
  * events.
  */
-static int sony_set_operational(struct hid_device *hdev)
+static int sony_set_operational_usb(struct hid_device *hdev)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 	struct usb_device *dev = interface_to_usbdev(intf);
···
 	return ret;
 }
 
+static int sony_set_operational_bt(struct hid_device *hdev)
+{
+	unsigned char buf[] = { 0x53, 0xf4,  0x42, 0x03, 0x00, 0x00 };
+	return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+}
+
 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret;
···
 
 	sc = kzalloc(sizeof(*sc), GFP_KERNEL);
 	if (sc == NULL) {
-		dev_err(&hdev->dev, "can't alloc apple descriptor\n");
+		dev_err(&hdev->dev, "can't alloc sony descriptor\n");
 		return -ENOMEM;
 	}
 
···
 		goto err_free;
 	}
 
-	ret = sony_set_operational(hdev);
+	switch (hdev->bus) {
+	case BUS_USB:
+		ret = sony_set_operational_usb(hdev);
+		break;
+	case BUS_BLUETOOTH:
+		ret = sony_set_operational_bt(hdev);
+		break;
+	default:
+		ret = 0;
+	}
+
 	if (ret < 0)
 		goto err_stop;
 
···
 
 static const struct hid_device_id sony_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
 		.driver_data = VAIO_RDESC_CONSTANT },
 	{ }

drivers/hid/hid-stantum.c

···
+/*
+ *  HID driver for Stantum multitouch panels
+ *
+ *  Copyright (c) 2009 Stephane Chatty <[e-mail]>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Stephane Chatty <[e-mail]>");
+MODULE_DESCRIPTION("Stantum HID multitouch panels");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct stantum_data {
+	__s32 x, y, z, w, h;	/* x, y, pressure, width, height */
+	__u16 id;		/* touch id */
+	bool valid;		/* valid finger data, or just placeholder? */
+	bool first;		/* first finger in the HID packet? */
+	bool activity;		/* at least one active finger so far? */
+};
+
+static int stantum_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	switch (usage->hid & HID_USAGE_PAGE) {
+
+	case HID_UP_GENDESK:
+		switch (usage->hid) {
+		case HID_GD_X:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_X);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_X,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		case HID_GD_Y:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_POSITION_Y);
+			/* touchscreen emulation */
+			input_set_abs_params(hi->input, ABS_Y,
+						field->logical_minimum,
+						field->logical_maximum, 0, 0);
+			return 1;
+		}
+		return 0;
+
+	case HID_UP_DIGITIZER:
+		switch (usage->hid) {
+		case HID_DG_INRANGE:
+		case HID_DG_CONFIDENCE:
+		case HID_DG_INPUTMODE:
+		case HID_DG_DEVICEINDEX:
+		case HID_DG_CONTACTCOUNT:
+		case HID_DG_CONTACTMAX:
+			return -1;
+
+		case HID_DG_TIPSWITCH:
+			/* touchscreen emulation */
+			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+			return 1;
+
+		case HID_DG_WIDTH:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TOUCH_MAJOR);
+			return 1;
+		case HID_DG_HEIGHT:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TOUCH_MINOR);
+			input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
+					1, 1, 0, 0);
+			return 1;
+		case HID_DG_TIPPRESSURE:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_PRESSURE);
+			return 1;
+
+		case HID_DG_CONTACTID:
+			hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TRACKING_ID);
+			return 1;
+
+		}
+		return 0;
+
+	case 0xff000000:
+		/* no input-oriented meaning */
+		return -1;
+	}
+
+	return 0;
+}
+
+static int stantum_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if (usage->type == EV_KEY || usage->type == EV_ABS)
+		clear_bit(usage->code, *bit);
+
+	return 0;
+}
+
+/*
+ * this function is called when a whole finger has been parsed,
+ * so that it can decide what to send to the input layer.
+ */
+static void stantum_filter_event(struct stantum_data *sd,
+					struct input_dev *input)
+{
+	bool wide;
+
+	if (!sd->valid) {
+		/*
+		 * touchscreen emulation: if the first finger is not valid and
+		 * there previously was finger activity, this is a release
+		 */
+		if (sd->first && sd->activity) {
+			input_event(input, EV_KEY, BTN_TOUCH, 0);
+			sd->activity = false;
+		}
+		return;
+	}
+
+	input_event(input, EV_ABS, ABS_MT_TRACKING_ID, sd->id);
+	input_event(input, EV_ABS, ABS_MT_POSITION_X, sd->x);
+	input_event(input, EV_ABS, ABS_MT_POSITION_Y, sd->y);
+
+	wide = (sd->w > sd->h);
+	input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
+	input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, wide ? sd->w : sd->h);
+	input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, wide ? sd->h : sd->w);
+
+	input_event(input, EV_ABS, ABS_MT_PRESSURE, sd->z);
+
+	input_mt_sync(input);
+	sd->valid = false;
+
+	/* touchscreen emulation */
+	if (sd->first) {
+		if (!sd->activity) {
+			input_event(input, EV_KEY, BTN_TOUCH, 1);
+			sd->activity = true;
+		}
+		input_event(input, EV_ABS, ABS_X, sd->x);
+		input_event(input, EV_ABS, ABS_Y, sd->y);
+	}
+	sd->first = false;
+}
+
+
+static int stantum_event(struct hid_device *hid, struct hid_field *field,
+				struct hid_usage *usage, __s32 value)
+{
+	struct stantum_data *sd = hid_get_drvdata(hid);
+
+	if (hid->claimed & HID_CLAIMED_INPUT) {
+		struct input_dev *input = field->hidinput->input;
+
+		switch (usage->hid) {
+		case HID_DG_INRANGE:
+			/* this is the last field in a finger */
+			stantum_filter_event(sd, input);
+			break;
+		case HID_DG_WIDTH:
+			sd->w = value;
+			break;
+		case HID_DG_HEIGHT:
+			sd->h = value;
+			break;
+		case HID_GD_X:
+			sd->x = value;
+			break;
+		case HID_GD_Y:
+			sd->y = value;
+			break;
+		case HID_DG_TIPPRESSURE:
+			sd->z = value;
+			break;
+		case HID_DG_CONTACTID:
+			sd->id = value;
+			break;
+		case HID_DG_CONFIDENCE:
+			sd->valid = !!value;
+			break;
+		case 0xff000002:
+			/* this comes only before the first finger */
+			sd->first = true;
+			break;
+
+		default:
+			/* ignore the others */
+			return 1;
+		}
+	}
+
+	/* we have handled the hidinput part, now remains hiddev */
+	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+		hid->hiddev_hid_event(hid, field, usage, value);
+
+	return 1;
+}
+
+static int stantum_probe(struct hid_device *hdev,
+				const struct hid_device_id *id)
+{
+	int ret;
+	struct stantum_data *sd;
+
+	sd = kmalloc(sizeof(struct stantum_data), GFP_KERNEL);
+	if (!sd) {
+		dev_err(&hdev->dev, "cannot allocate Stantum data\n");
+		return -ENOMEM;
+	}
+	sd->valid = false;
+	sd->first = false;
+	sd->activity = false;
+	hid_set_drvdata(hdev, sd);
+
+	ret = hid_parse(hdev);
+	if (!ret)
+		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+	if (ret)
+		kfree(sd);
+
+	return ret;
+}
+
+static void stantum_remove(struct hid_device *hdev)
+{
+	hid_hw_stop(hdev);
+	kfree(hid_get_drvdata(hdev));
+	hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id stantum_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, stantum_devices);
+
+static const struct hid_usage_id stantum_grabbed_usages[] = {
+	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver stantum_driver = {
+	.name = "stantum",
+	.id_table = stantum_devices,
+	.probe = stantum_probe,
+	.remove = stantum_remove,
+	.input_mapping = stantum_input_mapping,
+	.input_mapped = stantum_input_mapped,
+	.usage_table = stantum_grabbed_usages,
+	.event = stantum_event,
+};
+
+static int __init stantum_init(void)
+{
+	return hid_register_driver(&stantum_driver);
+}
+
+static void __exit stantum_exit(void)
+{
+	hid_unregister_driver(&stantum_driver);
+}
+
+module_init(stantum_init);
+module_exit(stantum_exit);
+

drivers/hid/hid-wacom.c

···
 	struct hid_input *hidinput;
 	struct input_dev *input;
 	struct wacom_data *wdata;
+	char rep_data[2];
 	int ret;
+	int limit;
 
 	wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
 	if (wdata == NULL) {
···
 
 	hid_set_drvdata(hdev, wdata);
 
+	/* Parse the HID report now */
 	ret = hid_parse(hdev);
 	if (ret) {
 		dev_err(&hdev->dev, "parse failed\n");
···
 		dev_err(&hdev->dev, "hw start failed\n");
 		goto err_free;
 	}
+
+	/*
+	 * Note that if the raw queries fail, it's not a hard failure and it
+	 * is safe to continue
+	 */
+
+	/* Set Wacom mode2 */
+	rep_data[0] = 0x03; rep_data[1] = 0x00;
+	limit = 3;
+	do {
+		ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+	} while (ret < 0 && limit-- > 0);
+	if (ret < 0)
+		dev_warn(&hdev->dev, "failed to poke device #1, %d\n", ret);
+
+	/* 0x06 - high reporting speed, 0x05 - low speed */
+	rep_data[0] = 0x06; rep_data[1] = 0x00;
+	limit = 3;
+	do {
+		ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+	} while (ret < 0 && limit-- > 0);
+	if (ret < 0)
+		dev_warn(&hdev->dev, "failed to poke device #2, %d\n", ret);
 
 	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
 	input = hidinput->input;

drivers/hid/hidraw.c

···
 		goto out;
 	}
 
-	ret = dev->hid_output_raw_report(dev, buf, count);
+	ret = dev->hid_output_raw_report(dev, buf, count, HID_OUTPUT_REPORT);
 out:
 	kfree(buf);
 	return ret;

drivers/hid/usbhid/hid-core.c

···
  *  Copyright (c) 2000-2005 Vojtech Pavlik <[e-mail]>
  *  Copyright (c) 2005 Michael Haboustak <[e-mail]> for Concept2, Inc
  *  Copyright (c) 2007-2008 Oliver Neukum
- *  Copyright (c) 2006-2009 Jiri Kosina
+ *  Copyright (c) 2006-2010 Jiri Kosina
  */
 
 /*
···
 			err_hid("usb_submit_urb(out) failed");
 			return -1;
 		}
+		usbhid->last_out = jiffies;
 	} else {
 		/*
 		 * queue work to wake up the device.
···
 			err_hid("usb_submit_urb(ctrl) failed");
 			return -1;
 		}
+		usbhid->last_ctrl = jiffies;
 	} else {
 		/*
 		 * queue work to wake up the device.
···
 		usbhid->out[usbhid->outhead].report = report;
 		usbhid->outhead = head;
 
-		if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl))
+		if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) {
 			if (hid_submit_out(hid))
 				clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
+		} else {
+			/*
+			 * the queue is known to run
+			 * but an earlier request may be stuck
+			 * we may need to time out
+			 * no race because this is called under
+			 * spinlock
+			 */
+			if (time_after(jiffies, usbhid->last_out + HZ * 5))
+				usb_unlink_urb(usbhid->urbout);
+		}
 		return;
 	}
 
···
 	usbhid->ctrl[usbhid->ctrlhead].dir = dir;
 	usbhid->ctrlhead = head;
 
-	if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl))
+	if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) {
 		if (hid_submit_ctrl(hid))
 			clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
+	} else {
+		/*
+		 * the queue is known to run
+		 * but an earlier request may be stuck
+		 * we may need to time out
+		 * no race because this is called under
+		 * spinlock
+		 */
+		if (time_after(jiffies, usbhid->last_ctrl + HZ * 5))
+			usb_unlink_urb(usbhid->urbctrl);
+	}
 }
 
 void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
···
 	return 0;
 }
 
-static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count)
+static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count,
+		unsigned char report_type)
 {
 	struct usbhid_device *usbhid = hid->driver_data;
 	struct usb_device *dev = hid_to_usb_dev(hid);
···
 	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 		HID_REQ_SET_REPORT,
 		USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-		((HID_OUTPUT_REPORT + 1) << 8) | *buf,
+		((report_type + 1) << 8) | *buf,
 		interface->desc.bInterfaceNumber, buf + 1, count - 1,
 		USB_CTRL_SET_TIMEOUT);
 
···
 
 	spin_lock_init(&usbhid->lock);
 
-	usbhid->intf = intf;
-	usbhid->ifnum = interface->desc.bInterfaceNumber;
-
 	usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
 	if (!usbhid->urbctrl) {
 		ret = -ENOMEM;
···
 
 	hid->driver_data = usbhid;
 	usbhid->hid = hid;
+	usbhid->intf = intf;
+	usbhid->ifnum = interface->desc.bInterfaceNumber;
 
 	ret = hid_add_device(hid);
 	if (ret) {
···
 
 #endif /* CONFIG_PM */
 
-static struct usb_device_id hid_usb_ids [] = {
+static const struct usb_device_id hid_usb_ids[] = {
 	{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
 		.bInterfaceClass = USB_INTERFACE_CLASS_HID },
 	{ }						/* Terminating entry */

drivers/hid/usbhid/hid-quirks.c

···
 
 	{ USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
 
+	{ USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
 	{ USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT },
 
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
···
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },

drivers/hid/usbhid/usbhid.h

···
 	unsigned char ctrlhead, ctrltail;                               /* Control fifo head & tail */
 	char *ctrlbuf;                                                  /* Control buffer */
 	dma_addr_t ctrlbuf_dma;                                         /* Control buffer dma */
+	unsigned long last_ctrl;						/* record of last output for timeouts */
 
 	struct urb *urbout;                                             /* Output URB */
 	struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE];              /* Output pipe fifo */
 	unsigned char outhead, outtail;                                 /* Output pipe fifo head & tail */
 	char *outbuf;                                                   /* Output buffer */
 	dma_addr_t outbuf_dma;                                          /* Output buffer dma */
+	unsigned long last_out;							/* record of last output for timeouts */
 
 	spinlock_t lock;						/* fifo spinlock */
 	unsigned long iofl;                                             /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */

drivers/input/input-polldev.c

···
 	struct input_polled_dev *dev = input_get_drvdata(input);
 
 	cancel_delayed_work_sync(&dev->work);
+	/*
+	 * Clean up work struct to remove references to the workqueue.
+	 * It may be destroyed by the next call. This causes problems
+	 * at next device open-close in case of poll_interval == 0.
+	 */
+	INIT_DELAYED_WORK(&dev->work, dev->work.work.func);
 	input_polldev_stop_workqueue();
 
 	if (dev->close)

drivers/input/serio/i8042.c

···
 	return 0;
 }
 
+static int i8042_pm_thaw(struct device *dev)
+{
+	i8042_interrupt(0, NULL);
+
+	return 0;
+}
+
 static const struct dev_pm_ops i8042_pm_ops = {
 	.suspend	= i8042_pm_reset,
 	.resume		= i8042_pm_restore,
+	.thaw		= i8042_pm_thaw,
 	.poweroff	= i8042_pm_reset,
 	.restore	= i8042_pm_restore,
 };

drivers/input/touchscreen/usbtouchscreen.c

···
 #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
 static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 {
-	dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1] ;
-	dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3] ;
+	dev->x = (pkt[2] << 8) | pkt[1];
+	dev->y = (pkt[4] << 8) | pkt[3];
 	dev->press = pkt[5] & 0xff;
 	dev->touch = pkt[0] & 0x01;
 
···
 #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
 	[DEVTYPE_GENERAL_TOUCH] = {
 		.min_xc		= 0x0,
-		.max_xc		= 0x0500,
+		.max_xc		= 0x7fff,
 		.min_yc		= 0x0,
-		.max_yc		= 0x0500,
+		.max_yc		= 0x7fff,
 		.rept_size	= 7,
 		.read_data	= general_touch_read_data,
 	},

drivers/macintosh/adb.c

···
 		adb_controller = NULL;
 	} else {
 #ifdef CONFIG_PPC
-		if (machine_is_compatible("AAPL,PowerBook1998") ||
-			machine_is_compatible("PowerBook1,1"))
+		if (of_machine_is_compatible("AAPL,PowerBook1998") ||
+			of_machine_is_compatible("PowerBook1,1"))
 			sleepy_trackpad = 1;
 #endif /* CONFIG_PPC */
 

drivers/macintosh/therm_pm72.c

···
 	 */
 	if (rackmac)
 		cpu_pid_type = CPU_PID_TYPE_RACKMAC;
-	else if (machine_is_compatible("PowerMac7,3")
+	else if (of_machine_is_compatible("PowerMac7,3")
 	    && (cpu_count > 1)
 	    && fcu_fans[CPUA_PUMP_RPM_INDEX].id != FCU_FAN_ABSENT_ID
 	    && fcu_fans[CPUB_PUMP_RPM_INDEX].id != FCU_FAN_ABSENT_ID) {
···
 {
 	struct device_node *np;
 
-	rackmac = machine_is_compatible("RackMac3,1");
+	rackmac = of_machine_is_compatible("RackMac3,1");
 
-	if (!machine_is_compatible("PowerMac7,2") &&
-	    !machine_is_compatible("PowerMac7,3") &&
+	if (!of_machine_is_compatible("PowerMac7,2") &&
+	    !of_machine_is_compatible("PowerMac7,3") &&
 	    !rackmac)
 	    	return -ENODEV;
 

drivers/macintosh/therm_windtunnel.c

···
 	info = of_get_property(np, "thermal-info", NULL);
 	of_node_put(np);
 
-	if( !info || !machine_is_compatible("PowerMac3,6") )
+	if( !info || !of_machine_is_compatible("PowerMac3,6") )
 		return -ENODEV;
 
 	if( info->id != 3 ) {

drivers/macintosh/via-pmu-backlight.c

···
 
 	/* Special case for the old PowerBook since I can't test on it */
 	autosave =
-		machine_is_compatible("AAPL,3400/2400") ||
-		machine_is_compatible("AAPL,3500");
+		of_machine_is_compatible("AAPL,3400/2400") ||
+		of_machine_is_compatible("AAPL,3500");
 
 	if (!autosave &&
 	    !pmac_has_backlight_type("pmu") &&
-	    !machine_is_compatible("AAPL,PowerBook1998") &&
-	    !machine_is_compatible("PowerBook1,1"))
+	    !of_machine_is_compatible("AAPL,PowerBook1998") &&
+	    !of_machine_is_compatible("PowerBook1,1"))
 		return;
 
 	snprintf(name, sizeof(name), "pmubl");

drivers/macintosh/via-pmu.c

···
 #endif
 
 #ifdef CONFIG_PPC32
-  	if (machine_is_compatible("AAPL,3400/2400") ||
-  		machine_is_compatible("AAPL,3500")) {
+  	if (of_machine_is_compatible("AAPL,3400/2400") ||
+  		of_machine_is_compatible("AAPL,3500")) {
 		int mb = pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 			NULL, PMAC_MB_INFO_MODEL, 0);
 		pmu_battery_count = 1;
···
 			pmu_batteries[0].flags |= PMU_BATT_TYPE_COMET;
 		else
 			pmu_batteries[0].flags |= PMU_BATT_TYPE_HOOPER;
-	} else if (machine_is_compatible("AAPL,PowerBook1998") ||
-		machine_is_compatible("PowerBook1,1")) {
+	} else if (of_machine_is_compatible("AAPL,PowerBook1998") ||
+		of_machine_is_compatible("PowerBook1,1")) {
 		pmu_battery_count = 2;
 		pmu_batteries[0].flags |= PMU_BATT_TYPE_SMART;
 		pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;

drivers/macintosh/windfarm_core.c

···
 	DBG("wf: core loaded\n");
 
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 	platform_device_register(&wf_platform_device);
 	return 0;

drivers/macintosh/windfarm_cpufreq_clamp.c

···
 	struct wf_control *clamp;
 
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 
 	clamp = kmalloc(sizeof(struct wf_control), GFP_KERNEL);

drivers/macintosh/windfarm_lm75_sensor.c

···
 static int __init wf_lm75_sensor_init(void)
 {
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 	return i2c_add_driver(&wf_lm75_driver);
 }

drivers/macintosh/windfarm_max6690_sensor.c

···
 static int __init wf_max6690_sensor_init(void)
 {
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 	return i2c_add_driver(&wf_max6690_driver);
 }

drivers/macintosh/windfarm_pm112.c

···
 {
 	struct device_node *cpu;
 
-	if (!machine_is_compatible("PowerMac11,2"))
+	if (!of_machine_is_compatible("PowerMac11,2"))
 		return -ENODEV;
 
 	/* Count the number of CPU cores */

drivers/macintosh/windfarm_pm121.c

···
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac12,1"))
+	if (of_machine_is_compatible("PowerMac12,1"))
 		rc = pm121_init_pm();
 
 	if (rc == 0) {

drivers/macintosh/windfarm_pm81.c

···
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac8,1") ||
-	    machine_is_compatible("PowerMac8,2"))
+	if (of_machine_is_compatible("PowerMac8,1") ||
+	    of_machine_is_compatible("PowerMac8,2"))
 		rc = wf_init_pm();
 
 	if (rc == 0) {

drivers/macintosh/windfarm_pm91.c

···
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac9,1"))
+	if (of_machine_is_compatible("PowerMac9,1"))
 		rc = wf_init_pm();
 
 	if (rc == 0) {

drivers/macintosh/windfarm_smu_sensors.c

···
 	 * I yet have to figure out what's up with 8,2 and will have to
 	 * adjust for later, unless we can 100% trust the SDB partition...
 	 */
-	if ((machine_is_compatible("PowerMac8,1") ||
-	     machine_is_compatible("PowerMac8,2") ||
-	     machine_is_compatible("PowerMac9,1")) &&
+	if ((of_machine_is_compatible("PowerMac8,1") ||
+	     of_machine_is_compatible("PowerMac8,2") ||
+	     of_machine_is_compatible("PowerMac9,1")) &&
 	    cpuvcp_version >= 2) {
 		pow->quadratic = 1;
 		DBG("windfarm: CPU Power using quadratic transform\n");

drivers/media/dvb/dvb-usb/Kconfig

···
 	select DVB_MT352 if !DVB_FE_CUSTOMISE
 	select DVB_ZL10353 if !DVB_FE_CUSTOMISE
 	select DVB_DIB7000P if !DVB_FE_CUSTOMISE
-	select DVB_LGS8GL5 if !DVB_FE_CUSTOMISE
 	select DVB_TUNER_DIB0070 if !DVB_FE_CUSTOMISE
+	select DVB_ATBM8830 if !DVB_FE_CUSTOMISE
+	select DVB_LGS8GXX if !DVB_FE_CUSTOMISE
 	select MEDIA_TUNER_SIMPLE if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_MXL5005S if !MEDIA_TUNER_CUSTOMISE
+	select MEDIA_TUNER_MAX2165 if !MEDIA_TUNER_CUSTOMISE
 	help
 	  Say Y here to support the Conexant USB2.0 hybrid reference design.
 	  Currently, only DVB and ATSC modes are supported, analog mode

drivers/media/dvb/frontends/l64781.c

···
 	spi_bias *= qam_tab[p->constellation];
 	spi_bias /= p->code_rate_HP + 1;
 	spi_bias /= (guard_tab[p->guard_interval] + 32);
-	spi_bias *= 1000ULL;
-	spi_bias /= 1000ULL + ppm/1000;
+	spi_bias *= 1000;
+	spi_bias /= 1000 + ppm/1000;
 	spi_bias *= p->code_rate_HP;
 
 	val0x04 = (p->transmission_mode << 2) | p->guard_interval;

drivers/media/video/bt8xx/bttv-driver.c

···
 		request_modules(btv);
 	}
 
+	init_bttv_i2c_ir(btv);
 	bttv_input_init(btv);
 
 	/* everything is fine */

drivers/media/video/bt8xx/bttv-i2c.c

···
 	if (0 == btv->i2c_rc && i2c_scan)
 		do_i2c_scan(btv->c.v4l2_dev.name, &btv->i2c_client);
 
-	/* Instantiate the IR receiver device, if present */
+	return btv->i2c_rc;
+}
+
+/* Instantiate the I2C IR receiver device, if present */
+void __devinit init_bttv_i2c_ir(struct bttv *btv)
+{
 	if (0 == btv->i2c_rc) {
 		struct i2c_board_info info;
 		/* The external IR receiver is at i2c address 0x34 (0x35 for
···
 		strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 		i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list);
 	}
-	return btv->i2c_rc;
 }
 
 int __devexit fini_bttv_i2c(struct bttv *btv)

drivers/media/video/bt8xx/bttvp.h

···
 extern unsigned int bttv_gpio;
 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
 extern int init_bttv_i2c(struct bttv *btv);
+extern void init_bttv_i2c_ir(struct bttv *btv);
 extern int fini_bttv_i2c(struct bttv *btv);
 
 #define bttv_printk if (bttv_verbose) printk

drivers/media/video/mt9t112.c

···
 	/* poll to verify out of standby. Must Poll this bit */
 	for (i = 0; i < 100; i++) {
 		mt9t112_reg_read(data, client, 0x0018);
-		if (0x4000 & data)
+		if (!(0x4000 & data))
 			break;
 
 		mdelay(10);

drivers/media/video/pwc/pwc-ctrl.c

···
 		buf[0] = 0xff; /* fixed */
 
 	ret = send_control_msg(pdev,
-		SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, sizeof(buf));
+		SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, 1);
 
 	if (!mode && ret >= 0) {
 		if (value < 0)

drivers/net/benet/be_cmds.c

···
 	req_hdr->opcode = opcode;
 	req_hdr->subsystem = subsystem;
 	req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr));
+	req_hdr->version = 0;
 }
 
 static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages,

drivers/net/e1000/e1000_main.c

···
 			}
 		}
 
-		if (!buffer_info->dma)
+		if (!buffer_info->dma) {
 			buffer_info->dma = pci_map_page(pdev,
 			                                buffer_info->page, 0,
 			                                buffer_info->length,
 			                                PCI_DMA_FROMDEVICE);
+			if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+				put_page(buffer_info->page);
+				dev_kfree_skb(skb);
+				buffer_info->page = NULL;
+				buffer_info->skb = NULL;
+				buffer_info->dma = 0;
+				adapter->alloc_rx_buff_failed++;
+				break; /* while !buffer_info->skb */
+			}
+		}
 
 		rx_desc = E1000_RX_DESC(*rx_ring, i);
 		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
···
 						  skb->data,
 						  buffer_info->length,
 						  PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+			dev_kfree_skb(skb);
+			buffer_info->skb = NULL;
+			buffer_info->dma = 0;
+			adapter->alloc_rx_buff_failed++;
+			break; /* while !buffer_info->skb */
+		}
 
 		/*
 		 * XXX if it was allocated cleanly it will never map to a

drivers/net/ixgbe/ixgbe_82598.c

···
 	u32 fctrl_reg;
 	u32 rmcs_reg;
 	u32 reg;
+	u32 link_speed = 0;
+	bool link_up;
 
 #ifdef CONFIG_DCB
 	if (hw->fc.requested_mode == ixgbe_fc_pfc)
 		goto out;
 
 #endif /* CONFIG_DCB */
+	/*
+	 * On 82598 having Rx FC on causes resets while doing 1G
+	 * so if it's on turn it off once we know link_speed. For
+	 * more details see 82598 Specification update.
+	 */
+	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
+	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
+		switch (hw->fc.requested_mode) {
+		case ixgbe_fc_full:
+			hw->fc.requested_mode = ixgbe_fc_tx_pause;
+			break;
+		case ixgbe_fc_rx_pause:
+			hw->fc.requested_mode = ixgbe_fc_none;
+			break;
+		default:
+			/* no change */
+			break;
+		}
+	}
+
 	/* Negotiate the fc mode to use */
 	ret_val = ixgbe_fc_autoneg(hw);
 	if (ret_val)

drivers/net/ixgbe/ixgbe_main.c

···
 	if (err)
 		goto err_sw_init;
 
+	/* Make it possible the adapter to be woken up via WOL */
+	if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0);
+
 	/*
 	 * If there is a fan on this device and it has failed log the
 	 * failure.

drivers/net/mace.c

···
 		mp->port_aaui = port_aaui;
 	else {
 		/* Apple Network Server uses the AAUI port */
-		if (machine_is_compatible("AAPL,ShinerESB"))
+		if (of_machine_is_compatible("AAPL,ShinerESB"))
 			mp->port_aaui = 1;
 		else {
 #ifdef CONFIG_MACE_AAUI_PORT

drivers/net/sfc/efx.c

···
  fail2:
 	efx_fini_struct(efx);
  fail1:
+	WARN_ON(rc > 0);
 	EFX_LOG(efx, "initialisation failed. rc=%d\n", rc);
 	free_netdev(net_dev);
 	return rc;

drivers/net/sfc/falcon_boards.c

···
 #define FALCON_BOARD_SFN4111T 0x51
 #define FALCON_BOARD_SFN4112F 0x52
 
+/* Board temperature is about 15°C above ambient when air flow is
+ * limited. */
+#define FALCON_BOARD_TEMP_BIAS	15
+
+/* SFC4000 datasheet says: 'The maximum permitted junction temperature
+ * is 125°C; the thermal design of the environment for the SFC4000
+ * should aim to keep this well below 100°C.' */
+#define FALCON_JUNC_TEMP_MAX	90
+
 /*****************************************************************************
  * Support for LM87 sensor chip used on several boards
  */
···
 static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
 
 static const u8 sfe4002_lm87_regs[] = {
-	LM87_IN_LIMITS(0, 0x83, 0x91),		/* 2.5V:  1.8V +/- 5% */
-	LM87_IN_LIMITS(1, 0x51, 0x5a),		/* Vccp1: 1.2V +/- 5% */
-	LM87_IN_LIMITS(2, 0xb6, 0xca),		/* 3.3V:  3.3V +/- 5% */
-	LM87_IN_LIMITS(3, 0xb0, 0xc9),		/* 5V:    4.6-5.2V */
-	LM87_IN_LIMITS(4, 0xb0, 0xe0),		/* 12V:   11-14V */
-	LM87_IN_LIMITS(5, 0x44, 0x4b),		/* Vccp2: 1.0V +/- 5% */
-	LM87_AIN_LIMITS(0, 0xa0, 0xb2),		/* AIN1:  1.66V +/- 5% */
-	LM87_AIN_LIMITS(1, 0x91, 0xa1),		/* AIN2:  1.5V +/- 5% */
-	LM87_TEMP_INT_LIMITS(10, 60),		/* board */
-	LM87_TEMP_EXT1_LIMITS(10, 70),		/* Falcon */
+	LM87_IN_LIMITS(0, 0x7c, 0x99),		/* 2.5V:  1.8V +/- 10% */
+	LM87_IN_LIMITS(1, 0x4c, 0x5e),		/* Vccp1: 1.2V +/- 10% */
+	LM87_IN_LIMITS(2, 0xac, 0xd4),		/* 3.3V:  3.3V +/- 10% */
+	LM87_IN_LIMITS(3, 0xac, 0xd4),		/* 5V:    5.0V +/- 10% */
+	LM87_IN_LIMITS(4, 0xac, 0xe0),		/* 12V:   10.8-14V */
+	LM87_IN_LIMITS(5, 0x3f, 0x4f),		/* Vccp2: 1.0V +/- 10% */
+	LM87_AIN_LIMITS(0, 0x98, 0xbb),		/* AIN1:  1.66V +/- 10% */
+	LM87_AIN_LIMITS(1, 0x8a, 0xa9),		/* AIN2:  1.5V +/- 10% */
+	LM87_TEMP_INT_LIMITS(0, 80 + FALCON_BOARD_TEMP_BIAS),
+	LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
 	0
 };
 
···
 static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */
 
 static const u8 sfn4112f_lm87_regs[] = {
-	LM87_IN_LIMITS(0, 0x83, 0x91),		/* 2.5V:  1.8V +/- 5% */
-	LM87_IN_LIMITS(1, 0x51, 0x5a),		/* Vccp1: 1.2V +/- 5% */
-	LM87_IN_LIMITS(2, 0xb6, 0xca),		/* 3.3V:  3.3V +/- 5% */
-	LM87_IN_LIMITS(4, 0xb0, 0xe0),		/* 12V:   11-14V */
-	LM87_IN_LIMITS(5, 0x44, 0x4b),		/* Vccp2: 1.0V +/- 5% */
-	LM87_AIN_LIMITS(1, 0x91, 0xa1),		/* AIN2:  1.5V +/- 5% */
-	LM87_TEMP_INT_LIMITS(10, 60),		/* board */
-	LM87_TEMP_EXT1_LIMITS(10, 70),		/* Falcon */
+	LM87_IN_LIMITS(0, 0x7c, 0x99),		/* 2.5V:  1.8V +/- 10% */
+	LM87_IN_LIMITS(1, 0x4c, 0x5e),		/* Vccp1: 1.2V +/- 10% */
+	LM87_IN_LIMITS(2, 0xac, 0xd4),		/* 3.3V:  3.3V +/- 10% */
+	LM87_IN_LIMITS(4, 0xac, 0xe0),		/* 12V:   10.8-14V */
+	LM87_IN_LIMITS(5, 0x3f, 0x4f),		/* Vccp2: 1.0V +/- 10% */
+	LM87_AIN_LIMITS(1, 0x8a, 0xa9),		/* AIN2:  1.5V +/- 10% */
+	LM87_TEMP_INT_LIMITS(0, 60 + FALCON_BOARD_TEMP_BIAS),
+	LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
 	0
 };
 

drivers/net/sfc/mcdi.c

···
 	efx_dword_t reg;
 
 	/* Check for a reboot atomically with respect to efx_mcdi_copyout() */
-	rc = efx_mcdi_poll_reboot(efx);
+	rc = -efx_mcdi_poll_reboot(efx);
 	if (rc)
 		goto out;
 

drivers/net/sfc/qt202x_phy.c

···
 
 	falcon_board(efx)->type->init_phy(efx);
 
-	return rc;
+	return 0;
 
  fail:
 	EFX_ERR(efx, "PHY reset timed out\n");

drivers/net/tc35815.c

···
 		/* Transmit complete. */
 		lp->lstats.tx_ints++;
 		tc35815_txdone(dev);
-		netif_wake_queue(dev);
 		if (ret < 0)
 			ret = 0;
 	}

drivers/net/usb/cdc_ether.c

···
 			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
 	.driver_info = (unsigned long) &mbm_info,
 }, {
+	/* Ericsson C3607w ver 2 */
+	USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x190b, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+	.driver_info = (unsigned long) &mbm_info,
+}, {
 	/* Toshiba F3507g */
 	USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM,
 			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),

drivers/net/via-velocity.c

···
 /**
  *	tx_srv		-	transmit interrupt service
  *	@vptr; Velocity
- *	@status:
  *
  *	Scan the queues looking for transmitted packets that
  *	we can complete and clean up. Update any statistics as
  *	necessary/
  */
-static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
+static int velocity_tx_srv(struct velocity_info *vptr)
 {
 	struct tx_desc *td;
 	int qnum;
···
 /**
  *	velocity_rx_srv		-	service RX interrupt
  *	@vptr: velocity
- *	@status: adapter status (unused)
  *
  *	Walk the receive ring of the velocity adapter and remove
  *	any received packets from the receive queue. Hand the ring
  *	slots back to the adapter for reuse.
  */
-static int velocity_rx_srv(struct velocity_info *vptr, int status,
-		int budget_left)
+static int velocity_rx_srv(struct velocity_info *vptr, int budget_left)
 {
 	struct net_device_stats *stats = &vptr->dev->stats;
 	int rd_curr = vptr->rx.curr;
···
 	struct velocity_info *vptr = container_of(napi,
 			struct velocity_info, napi);
 	unsigned int rx_done;
-	u32 isr_status;
+	unsigned long flags;
 
-	spin_lock(&vptr->lock);
-	isr_status = mac_read_isr(vptr->mac_regs);
-
-	/* Ack the interrupt */
-	mac_write_isr(vptr->mac_regs, isr_status);
-	if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
-		velocity_error(vptr, isr_status);
-
+	spin_lock_irqsave(&vptr->lock, flags);
 	/*
 	 * Do rx and tx twice for performance (taken from the VIA
 	 * out-of-tree driver).
 	 */
-	rx_done = velocity_rx_srv(vptr, isr_status, budget / 2);
-	velocity_tx_srv(vptr, isr_status);
-	rx_done += velocity_rx_srv(vptr, isr_status, budget - rx_done);
-	velocity_tx_srv(vptr, isr_status);
-
-	spin_unlock(&vptr->lock);
+	rx_done = velocity_rx_srv(vptr, budget / 2);
+	velocity_tx_srv(vptr);
+	rx_done += velocity_rx_srv(vptr, budget - rx_done);
+	velocity_tx_srv(vptr);
 
 	/* If budget not fully consumed, exit the polling mode */
 	if (rx_done < budget) {
 		napi_complete(napi);
 		mac_enable_int(vptr->mac_regs);
 	}
+	spin_unlock_irqrestore(&vptr->lock, flags);
 
 	return rx_done;
 }
···
 		return IRQ_NONE;
 	}
 
+	/* Ack the interrupt */
+	mac_write_isr(vptr->mac_regs, isr_status);
+
 	if (likely(napi_schedule_prep(&vptr->napi))) {
 		mac_disable_int(vptr->mac_regs);
 		__napi_schedule(&vptr->napi);
 	}
+
+	if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
+		velocity_error(vptr, isr_status);
+
 	spin_unlock(&vptr->lock);
 
 	return IRQ_HANDLED;
···
 	velocity_init_registers(vptr, VELOCITY_INIT_WOL);
 	mac_disable_int(vptr->mac_regs);
 
-	velocity_tx_srv(vptr, 0);
+	velocity_tx_srv(vptr);
 
 	for (i = 0; i < vptr->tx.numq; i++) {
 		if (vptr->tx.used[i])
···
 {
 	struct velocity_info *vptr = netdev_priv(dev);
 	int max_us = 0x3f * 64;
+	unsigned long flags;
 
 	/* 6 bits of  */
 	if (ecmd->tx_coalesce_usecs > max_us)
···
 			ecmd->tx_coalesce_usecs);
 
 	/* Setup the interrupt suppression and queue timers */
+	spin_lock_irqsave(&vptr->lock, flags);
 	mac_disable_int(vptr->mac_regs);
 	setup_adaptive_interrupts(vptr);
 	setup_queue_timers(vptr);
···
 	mac_write_int_mask(vptr->int_mask, vptr->mac_regs);
 	mac_clear_isr(vptr->mac_regs);
 	mac_enable_int(vptr->mac_regs);
+	spin_unlock_irqrestore(&vptr->lock, flags);
 
 	return 0;
 }

drivers/net/wireless/ath/ath9k/xmit.c

···
 		bf->bf_frmlen -= padsize;
 	}
 
-	if (conf_is_ht(&hw->conf) && !is_pae(skb))
+	if (conf_is_ht(&hw->conf))
 		bf->bf_state.bf_type |= BUF_HT;
 
 	bf->bf_flags = setup_tx_flags(sc, skb, txctl->txq);
···
 			goto tx_done;
 		}
 
-		if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+		if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && !is_pae(skb)) {
 			/*
 			 * Try aggregation if it's a unicast data frame
 			 * and the destination is HT capable.

drivers/net/wireless/b43/b43.h

···
 #define B43_MMIO_TSF_2			0x636	/* core rev < 3 only */
 #define B43_MMIO_TSF_3			0x638	/* core rev < 3 only */
 #define B43_MMIO_RNG			0x65A
+#define B43_MMIO_IFSSLOT		0x684	/* Interframe slot time */
 #define B43_MMIO_IFSCTL			0x688 /* Interframe space control */
 #define  B43_MMIO_IFSCTL_USE_EDCF	0x0004
 #define B43_MMIO_POWERUP_DELAY		0x6A8

drivers/net/wireless/b43/main.c

···
 static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
 {
 	/* slot_time is in usec. */
-	if (dev->phy.type != B43_PHYTYPE_G)
+	/* This test used to exit for all but a G PHY. */
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
 		return;
-	b43_write16(dev, 0x684, 510 + slot_time);
-	b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
+	b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time);
+	/* Shared memory location 0x0010 is the slot time and should be
+	 * set to slot_time; however, this register is initially 0 and changing
+	 * the value adversely affects the transmit rate for BCM4311
+	 * devices. Until this behavior is unterstood, delete this step
+	 *
+	 * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
+	 */
 }
 
 static void b43_short_slot_timing_enable(struct b43_wldev *dev)

drivers/net/wireless/iwlwifi/iwl-4965.c

···
 			IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
 					   "%d index %d\n", scd_ssn , index);
 			freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-			priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+			iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
 			if (priv->mac80211_registered &&
 			    (iwl_queue_space(&txq->q) > txq->q.low_mark) &&

drivers/net/wireless/iwlwifi/iwl-5000.c

···
 					scd_ssn , index, txq_id, txq->swq_id);
 
 			freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-			priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+			iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
 			if (priv->mac80211_registered &&
 			    (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
···
 				   tx_resp->failure_frame);
 
 		freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-		if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
-			priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+		iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
 		if (priv->mac80211_registered &&
 		    (iwl_queue_space(&txq->q) > txq->q.low_mark))
 			iwl_wake_queue(priv, txq_id);
 	}
 
-	if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
-		iwl_txq_check_empty(priv, sta_id, tid, txq_id);
+	iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 
 	if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
 		IWL_ERR(priv, "TODO:  Implement Tx ABORT REQUIRED!!!\n");

drivers/net/wireless/iwlwifi/iwl-core.c

···
 			priv->staging_rxon.flags = 0;
 
 		iwl_set_rxon_channel(priv, conf->channel);
+		iwl_set_rxon_ht(priv, ht_conf);
 
 		iwl_set_flags_for_band(priv, conf->channel->band);
 		spin_unlock_irqrestore(&priv->lock, flags);

drivers/net/wireless/iwlwifi/iwl-core.h

···
 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 			 struct iwl_tx_queue *txq);
 int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
+void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+			    int sta_id, int tid, int freed);
 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 		      int slots_num, u32 txq_id);
 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);

drivers/net/wireless/iwlwifi/iwl-rx.c

···
 	if (ieee80211_is_mgmt(fc) ||
 	    ieee80211_has_protected(fc) ||
 	    ieee80211_has_morefrags(fc) ||
-	    le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)
+	    le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG ||
+	    (ieee80211_is_data_qos(fc) &&
+	     *ieee80211_get_qos_ctl(hdr) &
+	     IEEE80211_QOS_CONTROL_A_MSDU_PRESENT))
 		ret = skb_linearize(skb);
 	else
 		ret = __pskb_pull_tail(skb, min_t(u16, IWL_LINK_HDR_MAX, len)) ?

drivers/net/wireless/iwlwifi/iwl-tx.c

···
 EXPORT_SYMBOL(iwl_txq_update_write_ptr);
 
 
+void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+			    int sta_id, int tid, int freed)
+{
+	if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
+		priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+	else {
+		IWL_ERR(priv, "free more than tfds_in_queue (%u:%d)\n",
+			priv->stations[sta_id].tid[tid].tfds_in_queue,
+			freed);
+		priv->stations[sta_id].tid[tid].tfds_in_queue = 0;
+	}
+}
+EXPORT_SYMBOL(iwl_free_tfds_in_queue);
+
 /**
  * iwl_tx_queue_free - Deallocate DMA queue.
  * @txq: Transmit queue to deallocate.
···
 	struct iwl_queue *q = &txq->q;
 	struct iwl_tx_info *tx_info;
 	int nfreed = 0;
+	struct ieee80211_hdr *hdr;
 
 	if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
 		IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
···
 
 		tx_info = &txq->txb[txq->q.read_ptr];
 		iwl_tx_status(priv, tx_info->skb[0]);
+
+		hdr = (struct ieee80211_hdr *)tx_info->skb[0]->data;
+		if (hdr && ieee80211_is_data_qos(hdr->frame_control))
+			nfreed++;
 		tx_info->skb[0] = NULL;
 
 		if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl)
 			priv->cfg->ops->lib->txq_inval_byte_cnt_tbl(priv, txq);
 
 		priv->cfg->ops->lib->txq_free_tfd(priv, txq);
-		nfreed++;
 	}
 	return nfreed;
 }
···
 	if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
 		/* calculate mac80211 ampdu sw queue to wake */
 		int freed = iwl_tx_queue_reclaim(priv, scd_flow, index);
-		priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+		iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
 		if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
 		    priv->mac80211_registered &&

drivers/net/wireless/iwmc3200wifi/rx.c

···
 	}
 
 	bss->bss = kzalloc(bss_len, GFP_KERNEL);
-	if (!bss) {
+	if (!bss->bss) {
 		kfree(bss);
 		IWM_ERR(iwm, "Couldn't allocate bss\n");
 		return -ENOMEM;

drivers/net/wireless/rtl818x/rtl8187_dev.c

···
 	/* Sitecom */
 	{USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
 	{USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
+	{USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
 	/* Sphairon Access Systems GmbH */
 	{USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
 	/* Dick Smith Electronics */

drivers/of/Kconfig

···
+config OF_FLATTREE
+	bool
+	depends on OF
+
+config OF_DYNAMIC
+	def_bool y
+	depends on OF && PPC_OF
+
 config OF_DEVICE
 	def_bool y
 	depends on OF && (SPARC || PPC_OF || MICROBLAZE)

drivers/of/Makefile

···
 obj-y = base.o
+obj-$(CONFIG_OF_FLATTREE) += fdt.o
 obj-$(CONFIG_OF_DEVICE) += device.o platform.o
 obj-$(CONFIG_OF_GPIO)   += gpio.o
 obj-$(CONFIG_OF_I2C)	+= of_i2c.o

drivers/of/base.c

···
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/spinlock.h>
+#include <linux/proc_fs.h>
 
 struct device_node *allnodes;
+struct device_node *of_chosen;
 
 /* use when traversing tree through the allnext, child, sibling,
  * or parent members of struct device_node.
···
 			np = np->parent;
 		ip = of_get_property(np, "#address-cells", NULL);
 		if (ip)
-			return *ip;
+			return be32_to_cpup(ip);
 	} while (np->parent);
 	/* No #address-cells property for the root node */
 	return OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
···
 			np = np->parent;
 		ip = of_get_property(np, "#size-cells", NULL);
 		if (ip)
-			return *ip;
+			return be32_to_cpup(ip);
 	} while (np->parent);
 	/* No #size-cells property for the root node */
 	return OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
 }
 EXPORT_SYMBOL(of_n_size_cells);
+
+#if !defined(CONFIG_SPARC)   /* SPARC doesn't do ref counting (yet) */
+/**
+ *	of_node_get - Increment refcount of a node
+ *	@node:	Node to inc refcount, NULL is supported to
+ *		simplify writing of callers
+ *
+ *	Returns node.
+ */
+struct device_node *of_node_get(struct device_node *node)
+{
+	if (node)
+		kref_get(&node->kref);
+	return node;
+}
+EXPORT_SYMBOL(of_node_get);
+
+static inline struct device_node *kref_to_device_node(struct kref *kref)
+{
+	return container_of(kref, struct device_node, kref);
+}
+
+/**
+ *	of_node_release - release a dynamically allocated node
+ *	@kref:  kref element of the node to be released
+ *
+ *	In of_node_put() this function is passed to kref_put()
+ *	as the destructor.
+ */
+static void of_node_release(struct kref *kref)
+{
+	struct device_node *node = kref_to_device_node(kref);
+	struct property *prop = node->properties;
+
+	/* We should never be releasing nodes that haven't been detached. */
+	if (!of_node_check_flag(node, OF_DETACHED)) {
+		pr_err("ERROR: Bad of_node_put() on %s\n", node->full_name);
+		dump_stack();
+		kref_init(&node->kref);
+		return;
+	}
+
+	if (!of_node_check_flag(node, OF_DYNAMIC))
+		return;
+
+	while (prop) {
+		struct property *next = prop->next;
+		kfree(prop->name);
+		kfree(prop->value);
+		kfree(prop);
+		prop = next;
+
+		if (!prop) {
+			prop = node->deadprops;
+			node->deadprops = NULL;
+		}
+	}
+	kfree(node->full_name);
+	kfree(node->data);
+	kfree(node);
+}
+
+/**
+ *	of_node_put - Decrement refcount of a node
+ *	@node:	Node to dec refcount, NULL is supported to
+ *		simplify writing of callers
+ *
+ */
+void of_node_put(struct device_node *node)
+{
+	if (node)
+		kref_put(&node->kref, of_node_release);
+}
+EXPORT_SYMBOL(of_node_put);
+#endif /* !CONFIG_SPARC */
 
 struct property *of_find_property(const struct device_node *np,
 				  const char *name,
···
 	return 0;
 }
 EXPORT_SYMBOL(of_device_is_compatible);
+
+/**
+ * of_machine_is_compatible - Test root of device tree for a given compatible value
+ * @compat: compatible string to look for in root node's compatible property.
+ *
+ * Returns true if the root node has the given value in its
+ * compatible property.
+ */
+int of_machine_is_compatible(const char *compat)
+{
+	struct device_node *root;
+	int rc = 0;
+
+	root = of_find_node_by_path("/");
+	if (root) {
+		rc = of_device_is_compatible(root, compat);
+		of_node_put(root);
+	}
+	return rc;
+}
+EXPORT_SYMBOL(of_machine_is_compatible);
 
 /**
  *  of_device_is_available - check if a device is available for use
···
 EXPORT_SYMBOL_GPL(of_modalias_node);
 
 /**
+ * of_find_node_by_phandle - Find a node given a phandle
+ * @handle:	phandle of the node to find
+ *
+ * Returns a node pointer with refcount incremented, use
+ * of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_phandle(phandle handle)
+{
+	struct device_node *np;
+
+	read_lock(&devtree_lock);
+	for (np = allnodes; np; np = np->allnext)
+		if (np->phandle == handle)
+			break;
+	of_node_get(np);
+	read_unlock(&devtree_lock);
+	return np;
+}
+EXPORT_SYMBOL(of_find_node_by_phandle);
+
+/**
  * of_parse_phandle - Resolve a phandle property to a device_node pointer
  * @np: Pointer to device node holding phandle property
  * @phandle_name: Name of property holding a phandle value
···
 				const void **out_args)
 {
 	int ret = -EINVAL;
-	const u32 *list;
-	const u32 *list_end;
+	const __be32 *list;
+	const __be32 *list_end;
 	int size;
 	int cur_index = 0;
 	struct device_node *node = NULL;
···
 	list_end = list + size / sizeof(*list);
 
 	while (list < list_end) {
-		const u32 *cells;
+		const __be32 *cells;
 		const phandle *phandle;
 
 		phandle = list++;
···
 			goto err1;
 		}
 
-		list += *cells;
+		list += be32_to_cpup(cells);
 		if (list > list_end) {
 			pr_debug("%s: insufficient arguments length\n",
 				 np->full_name);
···
 	return ret;
 }
 EXPORT_SYMBOL(of_parse_phandles_with_args);
+
+/**
+ * prom_add_property - Add a property to a node
+ */
+int prom_add_property(struct device_node *np, struct property *prop)
+{
+	struct property **next;
+	unsigned long flags;
+
+	prop->next = NULL;
+	write_lock_irqsave(&devtree_lock, flags);
+	next = &np->properties;
+	while (*next) {
+		if (strcmp(prop->name, (*next)->name) == 0) {
+			/* duplicate ! don't insert it */
+			write_unlock_irqrestore(&devtree_lock, flags);
+			return -1;
+		}
+		next = &(*next)->next;
+	}
+	*next = prop;
+	write_unlock_irqrestore(&devtree_lock, flags);
+
+#ifdef CONFIG_PROC_DEVICETREE
+	/* try to add to proc as well if it was initialized */
+	if (np->pde)
+		proc_device_tree_add_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+	return 0;
+}
+
+/**
+ * prom_remove_property - Remove a property from a node.
+ *
+ * Note that we don't actually remove it, since we have given out
+ * who-knows-how-many pointers to the data using get-property.
+ * Instead we just move the property to the "dead properties"
+ * list, so it won't be found any more.
+ */
+int prom_remove_property(struct device_node *np, struct property *prop)
+{
+	struct property **next;
+	unsigned long flags;
+	int found = 0;
+
+	write_lock_irqsave(&devtree_lock, flags);
+	next = &np->properties;
+	while (*next) {
+		if (*next == prop) {
+			/* found the node */
+			*next = prop->next;
+			prop->next = np->deadprops;
+			np->deadprops = prop;
+			found = 1;
+			break;
+		}
+		next = &(*next)->next;
+	}
+	write_unlock_irqrestore(&devtree_lock, flags);
+
+	if (!found)
+		return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+	/* try to remove the proc node as well */
+	if (np->pde)
+		proc_device_tree_remove_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+	return 0;
+}
+
+/*
+ * prom_update_property - Update a property in a node.
+ *
+ * Note that we don't actually remove it, since we have given out
+ * who-knows-how-many pointers to the data using get-property.
+ * Instead we just move the property to the "dead properties" list,
+ * and add the new property to the property list
+ */
+int prom_update_property(struct device_node *np,
+			 struct property *newprop,
+			 struct property *oldprop)
+{
+	struct property **next;
+	unsigned long flags;
+	int found = 0;
+
+	write_lock_irqsave(&devtree_lock, flags);
+	next = &np->properties;
+	while (*next) {
+		if (*next == oldprop) {
+			/* found the node */
+			newprop->next = oldprop->next;
+			*next = newprop;
+			oldprop->next = np->deadprops;
+			np->deadprops = oldprop;
+			found = 1;
+			break;
+		}
+		next = &(*next)->next;
+	}
+	write_unlock_irqrestore(&devtree_lock, flags);
+
+	if (!found)
+		return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+	/* try to add to proc as well if it was initialized */
+	if (np->pde)
+		proc_device_tree_update_prop(np->pde, newprop, oldprop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+	return 0;
+}
+
+#if defined(CONFIG_OF_DYNAMIC)
+/*
+ * Support for dynamic device trees.
+ *
+ * On some platforms, the device tree can be manipulated at runtime.
+ * The routines in this section support adding, removing and changing
+ * device tree nodes.
+ */
+
+/**
+ * of_attach_node - Plug a device node into the tree and global list.
+ */
+void of_attach_node(struct device_node *np)
+{
+	unsigned long flags;
+
+	write_lock_irqsave(&devtree_lock, flags);
+	np->sibling = np->parent->child;
+	np->allnext = allnodes;
+	np->parent->child = np;
+	allnodes = np;
+	write_unlock_irqrestore(&devtree_lock, flags);
+}
+
+/**
+ * of_detach_node - "Unplug" a node from the device tree.
+ *
+ * The caller must hold a reference to the node.  The memory associated with
+ * the node is not freed until its refcount goes to zero.
+ */
+void of_detach_node(struct device_node *np)
+{
+	struct device_node *parent;
+	unsigned long flags;
+
+	write_lock_irqsave(&devtree_lock, flags);
+
+	parent = np->parent;
+	if (!parent)
+		goto out_unlock;
+
+	if (allnodes == np)
+		allnodes = np->allnext;
+	else {
+		struct device_node *prev;
+		for (prev = allnodes;
+		     prev->allnext != np;
+		     prev = prev->allnext)
+			;
+		prev->allnext = np->allnext;
+	}
+
+	if (parent->child == np)
+		parent->child = np->sibling;
+	else {
+		struct device_node *prevsib;
+		for (prevsib = np->parent->child;
+		     prevsib->sibling != np;
+		     prevsib = prevsib->sibling)
+			;
+		prevsib->sibling = np->sibling;
+	}
+
+	of_node_set_flag(np, OF_DETACHED);
+
+out_unlock:
+	write_unlock_irqrestore(&devtree_lock, flags);
+}
+#endif /* defined(CONFIG_OF_DYNAMIC) */
+

drivers/of/fdt.c

···
+/*
+ * Functions for working with the Flattened Device Tree data format
+ *
+ * Copyright 2009 Benjamin Herrenschmidt, IBM Corp
+ * [e-mail]
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/initrd.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+
+#ifdef CONFIG_PPC
+#include <asm/machdep.h>
+#endif /* CONFIG_PPC */
+
+#include <asm/page.h>
+
+int __initdata dt_root_addr_cells;
+int __initdata dt_root_size_cells;
+
+struct boot_param_header *initial_boot_params;
+
+char *find_flat_dt_string(u32 offset)
+{
+	return ((char *)initial_boot_params) +
+		be32_to_cpu(initial_boot_params->off_dt_strings) + offset;
+}
+
+/**
+ * of_scan_flat_dt - scan flattened tree blob and call callback on each.
+ * @it: callback function
+ * @data: context data pointer
+ *
+ * This function is used to scan the flattened device-tree, it is
+ * used to extract the memory information at boot before we can
+ * unflatten the tree
+ */
+int __init of_scan_flat_dt(int (*it)(unsigned long node,
+				     const char *uname, int depth,
+				     void *data),
+			   void *data)
+{
+	unsigned long p = ((unsigned long)initial_boot_params) +
+		be32_to_cpu(initial_boot_params->off_dt_struct);
+	int rc = 0;
+	int depth = -1;
+
+	do {
+		u32 tag = be32_to_cpup((__be32 *)p);
+		char *pathp;
+
+		p += 4;
+		if (tag == OF_DT_END_NODE) {
+			depth--;
+			continue;
+		}
+		if (tag == OF_DT_NOP)
+			continue;
+		if (tag == OF_DT_END)
+			break;
+		if (tag == OF_DT_PROP) {
+			u32 sz = be32_to_cpup((__be32 *)p);
+			p += 8;
+			if (be32_to_cpu(initial_boot_params->version) < 0x10)
+				p = _ALIGN(p, sz >= 8 ? 8 : 4);
+			p += sz;
+			p = _ALIGN(p, 4);
+			continue;
+		}
+		if (tag != OF_DT_BEGIN_NODE) {
+			pr_err("Invalid tag %x in flat device tree!\n", tag);
+			return -EINVAL;
+		}
+		depth++;
+		pathp = (char *)p;
+		p = _ALIGN(p + strlen(pathp) + 1, 4);
+		if ((*pathp) == '/') {
+			char *lp, *np;
+			for (lp = NULL, np = pathp; *np; np++)
+				if ((*np) == '/')
+					lp = np+1;
+			if (lp != NULL)
+				pathp = lp;
+		}
+		rc = it(p, pathp, depth, data);
+		if (rc != 0)
+			break;
+	} while (1);
+
+	return rc;
+}
+
+/**
+ * of_get_flat_dt_root - find the root node in the flat blob
+ */
+unsigned long __init of_get_flat_dt_root(void)
+{
+	unsigned long p = ((unsigned long)initial_boot_params) +
+		be32_to_cpu(initial_boot_params->off_dt_struct);
+
+	while (be32_to_cpup((__be32 *)p) == OF_DT_NOP)
+		p += 4;
+	BUG_ON(be32_to_cpup((__be32 *)p) != OF_DT_BEGIN_NODE);
+	p += 4;
+	return _ALIGN(p + strlen((char *)p) + 1, 4);
+}
+
+/**
+ * of_get_flat_dt_prop - Given a node in the flat blob, return the property ptr
+ *
+ * This function can be used within scan_flattened_dt callback to get
+ * access to properties
+ */
+void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
+				 unsigned long *size)
+{
+	unsigned long p = node;
+
+	do {
+		u32 tag = be32_to_cpup((__be32 *)p);
+		u32 sz, noff;
+		const char *nstr;
+
+		p += 4;
+		if (tag == OF_DT_NOP)
+			continue;
+		if (tag != OF_DT_PROP)
+			return NULL;
+
+		sz = be32_to_cpup((__be32 *)p);
+		noff = be32_to_cpup((__be32 *)(p + 4));
+		p += 8;
+		if (be32_to_cpu(initial_boot_params->version) < 0x10)
+			p = _ALIGN(p, sz >= 8 ? 8 : 4);
+
+		nstr = find_flat_dt_string(noff);
+		if (nstr == NULL) {
+			pr_warning("Can't find property index name !\n");
+			return NULL;
+		}
+		if (strcmp(name, nstr) == 0) {
+			if (size)
+				*size = sz;
+			return (void *)p;
+		}
+		p += sz;
+		p = _ALIGN(p, 4);
+	} while (1);
+}
+
+/**
+ * of_flat_dt_is_compatible - Return true if given node has compat in compatible list
+ * @node: node to test
+ * @compat: compatible string to compare with compatible list.
+ */
+int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
+{
+	const char *cp;
+	unsigned long cplen, l;
+
+	cp = of_get_flat_dt_prop(node, "compatible", &cplen);
+	if (cp == NULL)
+		return 0;
+	while (cplen > 0) {
+		if (strncasecmp(cp, compat, strlen(compat)) == 0)
+			return 1;
+		l = strlen(cp) + 1;
+		cp += l;
+		cplen -= l;
+	}
+
+	return 0;
+}
+
+static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
+				       unsigned long align)
+{
+	void *res;
+
+	*mem = _ALIGN(*mem, align);
+	res = (void *)*mem;
+	*mem += size;
+
+	return res;
+}
+
+/**
+ * unflatten_dt_node - Alloc and populate a device_node from the flat tree
+ * @p: pointer to node in flat tree
+ * @dad: Parent struct device_node
+ * @allnextpp: pointer to ->allnext from last allocated device_node
+ * @fpsize: Size of the node path up at the current depth.
+ */
+unsigned long __init unflatten_dt_node(unsigned long mem,
+					unsigned long *p,
+					struct device_node *dad,
+					struct device_node ***allnextpp,
+					unsigned long fpsize)
+{
+	struct device_node *np;
+	struct property *pp, **prev_pp = NULL;
+	char *pathp;
+	u32 tag;
+	unsigned int l, allocl;
+	int has_name = 0;
+	int new_format = 0;
+
+	tag = be32_to_cpup((__be32 *)(*p));
+	if (tag != OF_DT_BEGIN_NODE) {
+		pr_err("Weird tag at start of node: %x\n", tag);
+		return mem;
+	}
+	*p += 4;
+	pathp = (char *)*p;
+	l = allocl = strlen(pathp) + 1;
+	*p = _ALIGN(*p + l, 4);
+
+	/* version 0x10 has a more compact unit name here instead of the full
+	 * path. we accumulate the full path size using "fpsize", we'll rebuild
+	 * it later. We detect this because the first character of the name is
+	 * not '/'.
+	 */
+	if ((*pathp) != '/') {
+		new_format = 1;
+		if (fpsize == 0) {
+			/* root node: special case. fpsize accounts for path
+			 * plus terminating zero. root node only has '/', so
+			 * fpsize should be 2, but we want to avoid the first
+			 * level nodes to have two '/' so we use fpsize 1 here
+			 */
+			fpsize = 1;
+			allocl = 2;
+		} else {
+			/* account for '/' and path size minus terminal 0
+			 * already in 'l'
+			 */
+			fpsize += l;
+			allocl = fpsize;
+		}
+	}
+
+	np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
+				__alignof__(struct device_node));
+	if (allnextpp) {
+		memset(np, 0, sizeof(*np));
+		np->full_name = ((char *)np) + sizeof(struct device_node);
+		if (new_format) {
+			char *fn = np->full_name;
+			/* rebuild full path for new format */
+			if (dad && dad->parent) {
+				strcpy(fn, dad->full_name);
+#ifdef DEBUG
+				if ((strlen(fn) + l + 1) != allocl) {
+					pr_debug("%s: p: %d, l: %d, a: %d\n",
+						pathp, (int)strlen(fn),
+						l, allocl);
+				}
+#endif
+				fn += strlen(fn);
+			}
+			*(fn++) = '/';
+			memcpy(fn, pathp, l);
+		} else
+			memcpy(np->full_name, pathp, l);
+		prev_pp = &np->properties;
+		**allnextpp = np;
+		*allnextpp = &np->allnext;
+		if (dad != NULL) {
+			np->parent = dad;
+			/* we temporarily use the next field as `last_child'*/
+			if (dad->next == NULL)
+				dad->child = np;
+			else
+				dad->next->sibling = np;
+			dad->next = np;
+		}
+		kref_init(&np->kref);
+	}
+	while (1) {
+		u32 sz, noff;
+		char *pname;
+
+		tag = be32_to_cpup((__be32 *)(*p));
+		if (tag == OF_DT_NOP) {
+			*p += 4;
+			continue;
+		}
+		if (tag != OF_DT_PROP)
+			break;
+		*p += 4;
+		sz = be32_to_cpup((__be32 *)(*p));
+		noff = be32_to_cpup((__be32 *)((*p) + 4));
+		*p += 8;
+		if (be32_to_cpu(initial_boot_params->version) < 0x10)
+			*p = _ALIGN(*p, sz >= 8 ? 8 : 4);
+
+		pname = find_flat_dt_string(noff);
+		if (pname == NULL) {
+			pr_info("Can't find property name in list !\n");
+			break;
+		}
+		if (strcmp(pname, "name") == 0)
+			has_name = 1;
+		l = strlen(pname) + 1;
+		pp = unflatten_dt_alloc(&mem, sizeof(struct property),
+					__alignof__(struct property));
+		if (allnextpp) {
+			/* We accept flattened tree phandles either in
+			 * ePAPR-style "phandle" properties, or the
+			 * legacy "linux,phandle" properties.  If both
+			 * appear and have different values, things
+			 * will get weird.  Don't do that. */
+			if ((strcmp(pname, "phandle") == 0) ||
+			    (strcmp(pname, "linux,phandle") == 0)) {
+				if (np->phandle == 0)
+					np->phandle = *((u32 *)*p);
+			}
+			/* And we process the "ibm,phandle" property
+			 * used in pSeries dynamic device tree
+			 * stuff */
+			if (strcmp(pname, "ibm,phandle") == 0)
+				np->phandle = *((u32 *)*p);
+			pp->name = pname;
+			pp->length = sz;
+			pp->value = (void *)*p;
+			*prev_pp = pp;
+			prev_pp = &pp->next;
+		}
+		*p = _ALIGN((*p) + sz, 4);
+	}
+	/* with version 0x10 we may not have the name property, recreate
+	 * it here from the unit name if absent
+	 */
+	if (!has_name) {
+		char *p1 = pathp, *ps = pathp, *pa = NULL;
+		int sz;
+
+		while (*p1) {
+			if ((*p1) == '@')
+				pa = p1;
+			if ((*p1) == '/')
+				ps = p1 + 1;
+			p1++;
+		}
+		if (pa < ps)
+			pa = p1;
+		sz = (pa - ps) + 1;
+		pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
+					__alignof__(struct property));
+		if (allnextpp) {
+			pp->name = "name";
+			pp->length = sz;
+			pp->value = pp + 1;
+			*prev_pp = pp;
+			prev_pp = &pp->next;
+			memcpy(pp->value, ps, sz - 1);
+			((char *)pp->value)[sz - 1] = 0;
+			pr_debug("fixed up name for %s -> %s\n", pathp,
+				(char *)pp->value);
+		}
+	}
+	if (allnextpp) {
+		*prev_pp = NULL;
+		np->name = of_get_property(np, "name", NULL);
+		np->type = of_get_property(np, "device_type", NULL);
+
+		if (!np->name)
+			np->name = "<NULL>";
+		if (!np->type)
+			np->type = "<NULL>";
+	}
+	while (tag == OF_DT_BEGIN_NODE) {
+		mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
+		tag = be32_to_cpup((__be32 *)(*p));
+	}
+	if (tag != OF_DT_END_NODE) {
+		pr_err("Weird tag at end of node: %x\n", tag);
+		return mem;
+	}
+	*p += 4;
+	return mem;
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+/**
+ * early_init_dt_check_for_initrd - Decode initrd location from flat tree
+ * @node: reference to node containing initrd location ('chosen')
+ */
+void __init early_init_dt_check_for_initrd(unsigned long node)
+{
+	unsigned long start, end, len;
+	__be32 *prop;
+
+	pr_debug("Looking for initrd properties... ");
+
+	prop = of_get_flat_dt_prop(node, "linux,initrd-start", &len);
+	if (!prop)
+		return;
+	start = of_read_ulong(prop, len/4);
+
+	prop = of_get_flat_dt_prop(node, "linux,initrd-end", &len);
+	if (!prop)
+		return;
+	end = of_read_ulong(prop, len/4);
+
+	early_init_dt_setup_initrd_arch(start, end);
+	pr_debug("initrd_start=0x%lx  initrd_end=0x%lx\n", start, end);
+}
+#else
+inline void early_init_dt_check_for_initrd(unsigned long node)
+{
+}
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+/**
+ * early_init_dt_scan_root - fetch the top level address and size cells
+ */
+int __init early_init_dt_scan_root(unsigned long node, const char *uname,
+				   int depth, void *data)
+{
+	__be32 *prop;
+
+	if (depth != 0)
+		return 0;
+
+	dt_root_size_cells = OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
+	dt_root_addr_cells = OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
+
+	prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
+	if (prop)
+		dt_root_size_cells = be32_to_cpup(prop);
+	pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
+
+	prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
+	if (prop)
+		dt_root_addr_cells = be32_to_cpup(prop);
+	pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
+
+	/* break now */
+	return 1;
+}
+
+u64 __init dt_mem_next_cell(int s, __be32 **cellp)
+{
+	__be32 *p = *cellp;
+
+	*cellp = p + s;
+	return of_read_number(p, s);
+}
+
+/**
+ * early_init_dt_scan_memory - Look for an parse memory nodes
+ */
+int __init early_init_dt_scan_memory(unsigned long node, const char *uname,
+				     int depth, void *data)
+{
+	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+	__be32 *reg, *endp;
+	unsigned long l;
+
+	/* We are scanning "memory" nodes only */
+	if (type == NULL) {
+		/*
+		 * The longtrail doesn't have a device_type on the
+		 * /memory node, so look for the node called /memory@0.
+		 */
+		if (depth != 1 || strcmp(uname, "memory@0") != 0)
+			return 0;
+	} else if (strcmp(type, "memory") != 0)
+		return 0;
+
+	reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l);
+	if (reg == NULL)
+		reg = of_get_flat_dt_prop(node, "reg", &l);
+	if (reg == NULL)
+		return 0;
+
+	endp = reg + (l / sizeof(__be32));
+
+	pr_debug("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
+	    uname, l, reg[0], reg[1], reg[2], reg[3]);
+
+	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
+		u64 base, size;
+
+		base = dt_mem_next_cell(dt_root_addr_cells, &reg);
+		size = dt_mem_next_cell(dt_root_size_cells, &reg);
+
+		if (size == 0)
+			continue;
+		pr_debug(" - %llx ,  %llx\n", (unsigned long long)base,
+		    (unsigned long long)size);
+
+		early_init_dt_add_memory_arch(base, size);
+	}
+
+	return 0;
+}
+
+int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
+				     int depth, void *data)
+{
+	unsigned long l;
+	char *p;
+
+	pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+	if (depth != 1 ||
+	    (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
+		return 0;
+
+	early_init_dt_check_for_initrd(node);
+
+	/* Retreive command line */
+	p = of_get_flat_dt_prop(node, "bootargs", &l);
+	if (p != NULL && l > 0)
+		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
+
+#ifdef CONFIG_CMDLINE
+#ifndef CONFIG_CMDLINE_FORCE
+	if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
+#endif
+		strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif /* CONFIG_CMDLINE */
+
+	early_init_dt_scan_chosen_arch(node);
+
+	pr_debug("Command line is: %s\n", cmd_line);
+
+	/* break now */
+	return 1;
+}
+
+/**
+ * unflatten_device_tree - create tree of device_nodes from flat blob
+ *
+ * unflattens the device-tree passed by the firmware, creating the
+ * tree of struct device_node. It also fills the "name" and "type"
+ * pointers of the nodes so the normal device-tree walking functions
+ * can be used.
+ */
+void __init unflatten_device_tree(void)
+{
+	unsigned long start, mem, size;
+	struct device_node **allnextp = &allnodes;
+
+	pr_debug(" -> unflatten_device_tree()\n");
+
+	/* First pass, scan for size */
+	start = ((unsigned long)initial_boot_params) +
+		be32_to_cpu(initial_boot_params->off_dt_struct);
+	size = unflatten_dt_node(0, &start, NULL, NULL, 0);
+	size = (size | 3) + 1;
+
+	pr_debug("  size is %lx, allocating...\n", size);
+
+	/* Allocate memory for the expanded device tree */
+	mem = early_init_dt_alloc_memory_arch(size + 4,
+			__alignof__(struct device_node));
+	mem = (unsigned long) __va(mem);
+
+	((__be32 *)mem)[size / 4] = cpu_to_be32(0xdeadbeef);
+
+	pr_debug("  unflattening %lx...\n", mem);
+
+	/* Second pass, do actual unflattening */
+	start = ((unsigned long)initial_boot_params) +
+		be32_to_cpu(initial_boot_params->off_dt_struct);
+	unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
+	if (be32_to_cpup((__be32 *)start) != OF_DT_END)
+		pr_warning("Weird tag at end of tree: %08x\n", *((u32 *)start));
+	if (be32_to_cpu(((__be32 *)mem)[size / 4]) != 0xdeadbeef)
+		pr_warning("End of tree marker overwritten: %08x\n",
+			   be32_to_cpu(((__be32 *)mem)[size / 4]));
+	*allnextp = NULL;
+
+	/* Get pointer to OF "/chosen" node for use everywhere */
+	of_chosen = of_find_node_by_path("/chosen");
+	if (of_chosen == NULL)
+		of_chosen = of_find_node_by_path("/chosen@0");
+
+	pr_debug(" <- unflatten_device_tree()\n");
+}

drivers/of/gpio.c

···
 	struct of_gpio_chip *of_gc = NULL;
 	int size;
 	const void *gpio_spec;
-	const u32 *gpio_cells;
+	const __be32 *gpio_cells;
 
 	ret = of_parse_phandles_with_args(np, "gpios", "#gpio-cells", index,
 					  &gc, &gpio_spec);
···
 
 	gpio_cells = of_get_property(gc, "#gpio-cells", &size);
 	if (!gpio_cells || size != sizeof(*gpio_cells) ||
-			*gpio_cells != of_gc->gpio_cells) {
+			be32_to_cpup(gpio_cells) != of_gc->gpio_cells) {
 		pr_debug("%s: wrong #gpio-cells for %s\n",
 			 np->full_name, gc->full_name);
 		ret = -EINVAL;
···
 int of_gpio_simple_xlate(struct of_gpio_chip *of_gc, struct device_node *np,
 			 const void *gpio_spec, enum of_gpio_flags *flags)
 {
-	const u32 *gpio = gpio_spec;
+	const __be32 *gpio = gpio_spec;
+	const u32 n = be32_to_cpup(gpio);
 
 	/*
 	 * We're discouraging gpio_cells < 2, since that way you'll have to
···
 		return -EINVAL;
 	}
 
-	if (*gpio > of_gc->gc.ngpio)
+	if (n > of_gc->gc.ngpio)
 		return -EINVAL;
 
 	if (flags)
-		*flags = gpio[1];
+		*flags = be32_to_cpu(gpio[1]);
 
-	return *gpio;
+	return n;
 }
 EXPORT_SYMBOL(of_gpio_simple_xlate);
 

drivers/of/of_i2c.c

···
 	for_each_child_of_node(adap_node, node) {
 		struct i2c_board_info info = {};
 		struct dev_archdata dev_ad = {};
-		const u32 *addr;
+		const __be32 *addr;
 		int len;
 
 		if (of_modalias_node(node, info.type, sizeof(info.type)) < 0)
···
 
 		info.irq = irq_of_parse_and_map(node, 0);
 
-		info.addr = *addr;
+		info.addr = be32_to_cpup(addr);
 
 		dev_archdata_set_node(&dev_ad, node);
 		info.archdata = &dev_ad;

drivers/of/of_mdio.c

···
 
 	/* Loop over the child nodes and register a phy_device for each one */
 	for_each_child_of_node(np, child) {
-		const u32 *addr;
+		const __be32 *addr;
 		int len;
 
 		/* A PHY must have a reg property in the range [0-31] */
···
 				mdio->irq[*addr] = PHY_POLL;
 		}
 
-		phy = get_phy_device(mdio, *addr);
+		phy = get_phy_device(mdio, be32_to_cpup(addr));
 		if (!phy) {
 			dev_err(&mdio->dev, "error probing PHY at address %i\n",
 				*addr);
···
 	struct device_node *net_np;
 	char bus_id[MII_BUS_ID_SIZE + 3];
 	struct phy_device *phy;
-	const u32 *phy_id;
+	const __be32 *phy_id;
 	int sz;
 
 	if (!dev->dev.parent)
···
 	if (!phy_id || sz < sizeof(*phy_id))
 		return NULL;
 
-	sprintf(bus_id, PHY_ID_FMT, "0", phy_id[0]);
+	sprintf(bus_id, PHY_ID_FMT, "0", be32_to_cpu(phy_id[0]));
 
 	phy = phy_connect(dev, bus_id, hndlr, 0, iface);
 	return IS_ERR(phy) ? NULL : phy;

drivers/of/of_spi.c

···
 {
 	struct spi_device *spi;
 	struct device_node *nc;
-	const u32 *prop;
+	const __be32 *prop;
 	int rc;
 	int len;
 
···
 			spi_dev_put(spi);
 			continue;
 		}
-		spi->chip_select = *prop;
+		spi->chip_select = be32_to_cpup(prop);
 
 		/* Mode (clock phase/polarity/etc.) */
 		if (of_find_property(nc, "spi-cpha", NULL))
···
 			spi_dev_put(spi);
 			continue;
 		}
-		spi->max_speed_hz = *prop;
+		spi->max_speed_hz = be32_to_cpup(prop);
 
 		/* IRQ */
 		spi->irq = irq_of_parse_and_map(nc, 0);

drivers/pci/hotplug/acpiphp_glue.c

···
 			-ret_val);
 		goto acpiphp_bus_add_out;
 	}
-	/*
-	 * try to start anyway.  We could have failed to add
-	 * simply because this bus had previously been added
-	 * on another add.  Don't bother with the return value
-	 * we just keep going.
-	 */
 	ret_val = acpi_bus_start(device);
 
 acpiphp_bus_add_out:

drivers/platform/x86/acer-wmi.c

···
 	acer_backlight_device = bd;
 
 	bd->props.power = FB_BLANK_UNBLANK;
-	bd->props.brightness = max_brightness;
+	bd->props.brightness = read_brightness(bd);
 	bd->props.max_brightness = max_brightness;
 	backlight_update_status(bd);
 	return 0;

drivers/platform/x86/thinkpad_acpi.c

···
 	case TPACPI_THERMAL_ACPI_TMP07:
 	case TPACPI_THERMAL_ACPI_UPDT:
 		sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
-				   &thermal_temp_input16_group);
+				   &thermal_temp_input8_group);
 		break;
 	case TPACPI_THERMAL_NONE:
 	default:

drivers/sbus/char/openprom.c

···
 
 	ph = 0;
 	if (dp)
-		ph = dp->node;
+		ph = dp->phandle;
 
 	data->current_node = dp;
 	*((int *) op->oprom_array) = ph;
···
 
 		dp = pci_device_to_OF_node(pdev);
 		data->current_node = dp;
-		*((int *)op->oprom_array) = dp->node;
+		*((int *)op->oprom_array) = dp->phandle;
 		op->oprom_size = sizeof(int);
 		err = copyout(argp, op, bufsize + sizeof(int));
 
···
 
 	dp = of_find_node_by_path(op->oprom_array);
 	if (dp)
-		ph = dp->node;
+		ph = dp->phandle;
 	data->current_node = dp;
 	*((int *)op->oprom_array) = ph;
 	op->oprom_size = sizeof(int);
···
 		}
 	}
 	if (dp)
-		nd = dp->node;
+		nd = dp->phandle;
 	if (copy_to_user(argp, &nd, sizeof(phandle)))
 		return -EFAULT;
 
···
 	case OPIOCGETOPTNODE:
 		BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
 
-		if (copy_to_user(argp, &options_node->node, sizeof(phandle)))
+		if (copy_to_user(argp, &options_node->phandle, sizeof(phandle)))
 			return -EFAULT;
 
 		return 0;

drivers/scsi/arm/fas216.c

···
 		if (info->scsi.phase == PHASE_IDLE)
 			fas216_kick(info);
 
-		mod_timer(&info->eh_timer, 30 * HZ);
+		mod_timer(&info->eh_timer, jiffies + 30 * HZ);
 		spin_unlock_irqrestore(&info->host_lock, flags);
 
 		/*

drivers/scsi/fcoe/fcoe.c

···
 	fcoe_interface_cleanup(fcoe);
 	rtnl_unlock();
 	fcoe_if_destroy(fcoe->ctlr.lp);
+	module_put(THIS_MODULE);
+
 out_putdev:
 	dev_put(netdev);
 out_nodev:
···
 	}
 #endif
 
+	if (!try_module_get(THIS_MODULE)) {
+		rc = -EINVAL;
+		goto out_nomod;
+	}
+
 	rtnl_lock();
 	netdev = fcoe_if_to_netdev(buffer);
 	if (!netdev) {
···
 	if (!fcoe_link_ok(lport))
 		fcoe_ctlr_link_up(&fcoe->ctlr);
 
-	rc = 0;
-out_free:
 	/*
 	 * Release from init in fcoe_interface_create(), on success lport
 	 * should be holding a reference taken in fcoe_if_create().
 	 */
 	fcoe_interface_put(fcoe);
+	dev_put(netdev);
+	rtnl_unlock();
+	mutex_unlock(&fcoe_config_mutex);
+
+	return 0;
+out_free:
+	fcoe_interface_put(fcoe);
 out_putdev:
 	dev_put(netdev);
 out_nodev:
 	rtnl_unlock();
+	module_put(THIS_MODULE);
+out_nomod:
 	mutex_unlock(&fcoe_config_mutex);
 	return rc;
 }

drivers/scsi/fcoe/libfcoe.c

···
 			next_timer = fip->ctlr_ka_time;
 
 		if (time_after_eq(jiffies, fip->port_ka_time)) {
-			fip->port_ka_time += jiffies +
+			fip->port_ka_time = jiffies +
 				msecs_to_jiffies(FIP_VN_KA_PERIOD);
 			fip->send_port_ka = 1;
 		}

drivers/scsi/libfc/fc_exch.c

···
 	fc_exch_setup_hdr(ep, fp, ep->f_ctl);
 	sp->cnt++;
 
-	if (ep->xid <= lport->lro_xid)
+	if (ep->xid <= lport->lro_xid && fh->fh_r_ctl == FC_RCTL_DD_UNSOL_CMD)
 		fc_fcp_ddp_setup(fr_fsp(fp), ep->xid);
 
 	if (unlikely(lport->tt.frame_send(lport, fp)))

drivers/scsi/libfc/fc_fcp.c

···
 {
 	struct fc_lport *lport;
 
-	if (!fsp)
-		return;
-
 	lport = fsp->lp;
 	if ((fsp->req_flags & FC_SRB_READ) &&
 	    (lport->lro_enabled) && (lport->tt.ddp_setup)) {

drivers/scsi/libfc/fc_lport.c

···
 	u32 did;
 
 	job->reply->reply_payload_rcv_len = 0;
-	rsp->resid_len = job->reply_payload.payload_len;
+	if (rsp)
+		rsp->resid_len = job->reply_payload.payload_len;
 
 	mutex_lock(&lport->lp_mutex);
 

drivers/scsi/libfc/fc_rport.c

···
 
 		tov = ntohl(plp->fl_csp.sp_e_d_tov);
 		if (ntohs(plp->fl_csp.sp_features) & FC_SP_FT_EDTR)
-			tov /= 1000;
+			tov /= 1000000;
 		if (tov > rdata->e_d_tov)
 			rdata->e_d_tov = tov;
 		csp_seq = ntohs(plp->fl_csp.sp_tot_seq);

drivers/scsi/libiscsi_tcp.c

···
 		if (r2t == NULL) {
 			if (kfifo_out(&tcp_task->r2tqueue,
 			    (void *)&tcp_task->r2t, sizeof(void *)) !=
-			    sizeof(void *)) {
-				WARN_ONCE(1, "unexpected fifo state");
+			    sizeof(void *))
 				r2t = NULL;
-			}
-
-			r2t = tcp_task->r2t;
+			else
+				r2t = tcp_task->r2t;
 		}
 		spin_unlock_bh(&session->lock);
 	}

drivers/scsi/megaraid/megaraid_sas.c

···
 	    compat_alloc_user_space(sizeof(struct megasas_iocpacket));
 	int i;
 	int error = 0;
+	compat_uptr_t ptr;
 
 	if (clear_user(ioc, sizeof(*ioc)))
 		return -EFAULT;
···
 	    copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
 		return -EFAULT;
 
-	for (i = 0; i < MAX_IOCTL_SGE; i++) {
-		compat_uptr_t ptr;
+	/*
+	 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
+	 * sense_len is not null, so prepare the 64bit value under
+	 * the same condition.
+	 */
+	if (ioc->sense_len) {
+		void __user **sense_ioc_ptr =
+			(void __user **)(ioc->frame.raw + ioc->sense_off);
+		compat_uptr_t *sense_cioc_ptr =
+			(compat_uptr_t *)(cioc->frame.raw + cioc->sense_off);
+		if (get_user(ptr, sense_cioc_ptr) ||
+		    put_user(compat_ptr(ptr), sense_ioc_ptr))
+			return -EFAULT;
+	}
 
+	for (i = 0; i < MAX_IOCTL_SGE; i++) {
 		if (get_user(ptr, &cioc->sgl[i].iov_base) ||
 		    put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
 		    copy_in_user(&ioc->sgl[i].iov_len,

drivers/serial/8250.c

···
 
 #define PASS_LIMIT	256
 
+#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+
+
 /*
  * We default to IRQ0 for the "no irq" hack.   Some
  * machine types want others as well - they're free
···
 	up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
 	spin_unlock_irqrestore(&up->port.lock, flags);
 
-	return lsr & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
+	return (lsr & BOTH_EMPTY) == BOTH_EMPTY ? TIOCSER_TEMT : 0;
 }
 
 static unsigned int serial8250_get_mctrl(struct uart_port *port)
···
 	serial_out(up, UART_LCR, up->lcr);
 	spin_unlock_irqrestore(&up->port.lock, flags);
 }
-
-#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
 
 /*
  *	Wait for transmitter & holding register to empty

drivers/serial/pmac_zilog.c

···
 	/*
 	 * XServe's default to 57600 bps
 	 */
-	if (machine_is_compatible("RackMac1,1")
-	    || machine_is_compatible("RackMac1,2")
-	    || machine_is_compatible("MacRISC4"))
+	if (of_machine_is_compatible("RackMac1,1")
+	    || of_machine_is_compatible("RackMac1,2")
+	    || of_machine_is_compatible("MacRISC4"))
 	 	baud = 57600;
 
 	/*

drivers/spi/Kconfig

···
 	  inexpensive battery powered microcontroller evaluation board.
 	  This same cable can be used to flash new firmware.
 
+config SPI_COLDFIRE_QSPI
+	tristate "Freescale Coldfire QSPI controller"
+	depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
+	help
+	  This enables support for the Coldfire QSPI controller in master
+	  mode.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called coldfire_qspi.
+
+config SPI_DAVINCI
+	tristate "SPI controller driver for DaVinci/DA8xx SoC's"
+	depends on SPI_MASTER && ARCH_DAVINCI
+	select SPI_BITBANG
+	help
+	  SPI master controller for DaVinci and DA8xx SPI modules.
+
 config SPI_GPIO
 	tristate "GPIO-based bitbanging SPI Master"
 	depends on GENERIC_GPIO
···
 #
 
 config SPI_DESIGNWARE
-	bool "DesignWare SPI controller core support"
+	tristate "DesignWare SPI controller core support"
 	depends on SPI_MASTER
 	help
 	  general driver for SPI controller core from DesignWare
···
 config SPI_DW_PCI
 	tristate "PCI interface driver for DW SPI core"
 	depends on SPI_DESIGNWARE && PCI
+
+config SPI_DW_MMIO
+	tristate "Memory-mapped io interface driver for DW SPI core"
+	depends on SPI_DESIGNWARE && HAVE_CLK
 
 #
 # There are lots of SPI device types, with sensors and memory

drivers/spi/Makefile

···
 obj-$(CONFIG_SPI_BITBANG)		+= spi_bitbang.o
 obj-$(CONFIG_SPI_AU1550)		+= au1550_spi.o
 obj-$(CONFIG_SPI_BUTTERFLY)		+= spi_butterfly.o
+obj-$(CONFIG_SPI_COLDFIRE_QSPI)		+= coldfire_qspi.o
+obj-$(CONFIG_SPI_DAVINCI)		+= davinci_spi.o
 obj-$(CONFIG_SPI_DESIGNWARE)		+= dw_spi.o
 obj-$(CONFIG_SPI_DW_PCI)		+= dw_spi_pci.o
+obj-$(CONFIG_SPI_DW_MMIO)		+= dw_spi_mmio.o
 obj-$(CONFIG_SPI_GPIO)			+= spi_gpio.o
 obj-$(CONFIG_SPI_IMX)			+= spi_imx.o
 obj-$(CONFIG_SPI_LM70_LLP)		+= spi_lm70llp.o

drivers/spi/coldfire_qspi.c

···
+/*
+ * Freescale/Motorola Coldfire Queued SPI driver
+ *
+ * Copyright 2010 Steven King <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA
+ *
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/spi/spi.h>
+
+#include <asm/coldfire.h>
+#include <asm/mcfqspi.h>
+
+#define	DRIVER_NAME "mcfqspi"
+
+#define	MCFQSPI_BUSCLK			(MCF_BUSCLK / 2)
+
+#define	MCFQSPI_QMR			0x00
+#define		MCFQSPI_QMR_MSTR	0x8000
+#define		MCFQSPI_QMR_CPOL	0x0200
+#define		MCFQSPI_QMR_CPHA	0x0100
+#define	MCFQSPI_QDLYR			0x04
+#define		MCFQSPI_QDLYR_SPE	0x8000
+#define	MCFQSPI_QWR			0x08
+#define		MCFQSPI_QWR_HALT	0x8000
+#define		MCFQSPI_QWR_WREN	0x4000
+#define		MCFQSPI_QWR_CSIV	0x1000
+#define	MCFQSPI_QIR			0x0C
+#define		MCFQSPI_QIR_WCEFB	0x8000
+#define		MCFQSPI_QIR_ABRTB	0x4000
+#define		MCFQSPI_QIR_ABRTL	0x1000
+#define		MCFQSPI_QIR_WCEFE	0x0800
+#define		MCFQSPI_QIR_ABRTE	0x0400
+#define		MCFQSPI_QIR_SPIFE	0x0100
+#define		MCFQSPI_QIR_WCEF	0x0008
+#define		MCFQSPI_QIR_ABRT	0x0004
+#define		MCFQSPI_QIR_SPIF	0x0001
+#define	MCFQSPI_QAR			0x010
+#define		MCFQSPI_QAR_TXBUF	0x00
+#define		MCFQSPI_QAR_RXBUF	0x10
+#define		MCFQSPI_QAR_CMDBUF	0x20
+#define	MCFQSPI_QDR			0x014
+#define	MCFQSPI_QCR			0x014
+#define		MCFQSPI_QCR_CONT	0x8000
+#define		MCFQSPI_QCR_BITSE	0x4000
+#define		MCFQSPI_QCR_DT		0x2000
+
+struct mcfqspi {
+	void __iomem *iobase;
+	int irq;
+	struct clk *clk;
+	struct mcfqspi_cs_control *cs_control;
+
+	wait_queue_head_t waitq;
+
+	struct work_struct work;
+	struct workqueue_struct *workq;
+	spinlock_t lock;
+	struct list_head msgq;
+};
+
+static void mcfqspi_wr_qmr(struct mcfqspi *mcfqspi, u16 val)
+{
+	writew(val, mcfqspi->iobase + MCFQSPI_QMR);
+}
+
+static void mcfqspi_wr_qdlyr(struct mcfqspi *mcfqspi, u16 val)
+{
+	writew(val, mcfqspi->iobase + MCFQSPI_QDLYR);
+}
+
+static u16 mcfqspi_rd_qdlyr(struct mcfqspi *mcfqspi)
+{
+	return readw(mcfqspi->iobase + MCFQSPI_QDLYR);
+}
+
+static void mcfqspi_wr_qwr(struct mcfqspi *mcfqspi, u16 val)
+{
+	writew(val, mcfqspi->iobase + MCFQSPI_QWR);
+}
+
+static void mcfqspi_wr_qir(struct mcfqspi *mcfqspi, u16 val)
+{
+	writew(val, mcfqspi->iobase + MCFQSPI_QIR);
+}
+
+static void mcfqspi_wr_qar(struct mcfqspi *mcfqspi, u16 val)
+{
+	writew(val, mcfqspi->iobase + MCFQSPI_QAR);
+}
+
+static void mcfqspi_wr_qdr(struct mcfqspi *mcfqspi, u16 val)
+{
+	writew(val, mcfqspi->iobase + MCFQSPI_QDR);
+}
+
+static u16 mcfqspi_rd_qdr(struct mcfqspi *mcfqspi)
+{
+	return readw(mcfqspi->iobase + MCFQSPI_QDR);
+}
+
+static void mcfqspi_cs_select(struct mcfqspi *mcfqspi, u8 chip_select,
+			    bool cs_high)
+{
+	mcfqspi->cs_control->select(mcfqspi->cs_control, chip_select, cs_high);
+}
+
+static void mcfqspi_cs_deselect(struct mcfqspi *mcfqspi, u8 chip_select,
+				bool cs_high)
+{
+	mcfqspi->cs_control->deselect(mcfqspi->cs_control, chip_select, cs_high);
+}
+
+static int mcfqspi_cs_setup(struct mcfqspi *mcfqspi)
+{
+	return (mcfqspi->cs_control && mcfqspi->cs_control->setup) ?
+		mcfqspi->cs_control->setup(mcfqspi->cs_control) : 0;
+}
+
+static void mcfqspi_cs_teardown(struct mcfqspi *mcfqspi)
+{
+	if (mcfqspi->cs_control && mcfqspi->cs_control->teardown)
+		mcfqspi->cs_control->teardown(mcfqspi->cs_control);
+}
+
+static u8 mcfqspi_qmr_baud(u32 speed_hz)
+{
+	return clamp((MCFQSPI_BUSCLK + speed_hz - 1) / speed_hz, 2u, 255u);
+}
+
+static bool mcfqspi_qdlyr_spe(struct mcfqspi *mcfqspi)
+{
+	return mcfqspi_rd_qdlyr(mcfqspi) & MCFQSPI_QDLYR_SPE;
+}
+
+static irqreturn_t mcfqspi_irq_handler(int this_irq, void *dev_id)
+{
+	struct mcfqspi *mcfqspi = dev_id;
+
+	/* clear interrupt */
+	mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE | MCFQSPI_QIR_SPIF);
+	wake_up(&mcfqspi->waitq);
+
+	return IRQ_HANDLED;
+}
+
+static void mcfqspi_transfer_msg8(struct mcfqspi *mcfqspi, unsigned count,
+				  const u8 *txbuf, u8 *rxbuf)
+{
+	unsigned i, n, offset = 0;
+
+	n = min(count, 16u);
+
+	mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_CMDBUF);
+	for (i = 0; i < n; ++i)
+		mcfqspi_wr_qdr(mcfqspi, MCFQSPI_QCR_BITSE);
+
+	mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_TXBUF);
+	if (txbuf)
+		for (i = 0; i < n; ++i)
+			mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+	else
+		for (i = 0; i < count; ++i)
+			mcfqspi_wr_qdr(mcfqspi, 0);
+
+	count -= n;
+	if (count) {
+		u16 qwr = 0xf08;
+		mcfqspi_wr_qwr(mcfqspi, 0x700);
+		mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+
+		do {
+			wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+			mcfqspi_wr_qwr(mcfqspi, qwr);
+			mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+			if (rxbuf) {
+				mcfqspi_wr_qar(mcfqspi,
+					       MCFQSPI_QAR_RXBUF + offset);
+				for (i = 0; i < 8; ++i)
+					*rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+			}
+			n = min(count, 8u);
+			if (txbuf) {
+				mcfqspi_wr_qar(mcfqspi,
+					       MCFQSPI_QAR_TXBUF + offset);
+				for (i = 0; i < n; ++i)
+					mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+			}
+			qwr = (offset ? 0x808 : 0) + ((n - 1) << 8);
+			offset ^= 8;
+			count -= n;
+		} while (count);
+		wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+		mcfqspi_wr_qwr(mcfqspi, qwr);
+		mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+		if (rxbuf) {
+			mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+			for (i = 0; i < 8; ++i)
+				*rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+			offset ^= 8;
+		}
+	} else {
+		mcfqspi_wr_qwr(mcfqspi, (n - 1) << 8);
+		mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+	}
+	wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+	if (rxbuf) {
+		mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+		for (i = 0; i < n; ++i)
+			*rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+	}
+}
+
+static void mcfqspi_transfer_msg16(struct mcfqspi *mcfqspi, unsigned count,
+				   const u16 *txbuf, u16 *rxbuf)
+{
+	unsigned i, n, offset = 0;
+
+	n = min(count, 16u);
+
+	mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_CMDBUF);
+	for (i = 0; i < n; ++i)
+		mcfqspi_wr_qdr(mcfqspi, MCFQSPI_QCR_BITSE);
+
+	mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_TXBUF);
+	if (txbuf)
+		for (i = 0; i < n; ++i)
+			mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+	else
+		for (i = 0; i < count; ++i)
+			mcfqspi_wr_qdr(mcfqspi, 0);
+
+	count -= n;
+	if (count) {
+		u16 qwr = 0xf08;
+		mcfqspi_wr_qwr(mcfqspi, 0x700);
+		mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+
+		do {
+			wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+			mcfqspi_wr_qwr(mcfqspi, qwr);
+			mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+			if (rxbuf) {
+				mcfqspi_wr_qar(mcfqspi,
+					       MCFQSPI_QAR_RXBUF + offset);
+				for (i = 0; i < 8; ++i)
+					*rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+			}
+			n = min(count, 8u);
+			if (txbuf) {
+				mcfqspi_wr_qar(mcfqspi,
+					       MCFQSPI_QAR_TXBUF + offset);
+				for (i = 0; i < n; ++i)
+					mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+			}
+			qwr = (offset ? 0x808 : 0x000) + ((n - 1) << 8);
+			offset ^= 8;
+			count -= n;
+		} while (count);
+		wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+		mcfqspi_wr_qwr(mcfqspi, qwr);
+		mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+		if (rxbuf) {
+			mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+			for (i = 0; i < 8; ++i)
+				*rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+			offset ^= 8;
+		}
+	} else {
+		mcfqspi_wr_qwr(mcfqspi, (n - 1) << 8);
+		mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+	}
+	wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+	if (rxbuf) {
+		mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+		for (i = 0; i < n; ++i)
+			*rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+	}
+}
+
+static void mcfqspi_work(struct work_struct *work)
+{
+	struct mcfqspi *mcfqspi = container_of(work, struct mcfqspi, work);
+	unsigned long flags;
+
+	spin_lock_irqsave(&mcfqspi->lock, flags);
+	while (!list_empty(&mcfqspi->msgq)) {
+		struct spi_message *msg;
+		struct spi_device *spi;
+		struct spi_transfer *xfer;
+		int status = 0;
+
+		msg = container_of(mcfqspi->msgq.next, struct spi_message,
+				   queue);
+
+		list_del_init(&mcfqspi->msgq);
+		spin_unlock_irqrestore(&mcfqspi->lock, flags);
+
+		spi = msg->spi;
+
+		list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+			bool cs_high = spi->mode & SPI_CS_HIGH;
+			u16 qmr = MCFQSPI_QMR_MSTR;
+
+			if (xfer->bits_per_word)
+				qmr |= xfer->bits_per_word << 10;
+			else
+				qmr |= spi->bits_per_word << 10;
+			if (spi->mode & SPI_CPHA)
+				qmr |= MCFQSPI_QMR_CPHA;
+			if (spi->mode & SPI_CPOL)
+				qmr |= MCFQSPI_QMR_CPOL;
+			if (xfer->speed_hz)
+				qmr |= mcfqspi_qmr_baud(xfer->speed_hz);
+			else
+				qmr |= mcfqspi_qmr_baud(spi->max_speed_hz);
+			mcfqspi_wr_qmr(mcfqspi, qmr);
+
+			mcfqspi_cs_select(mcfqspi, spi->chip_select, cs_high);
+
+			mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE);
+			if ((xfer->bits_per_word ? xfer->bits_per_word :
+						spi->bits_per_word) == 8)
+				mcfqspi_transfer_msg8(mcfqspi, xfer->len,
+						      xfer->tx_buf,
+						      xfer->rx_buf);
+			else
+				mcfqspi_transfer_msg16(mcfqspi, xfer->len / 2,
+						       xfer->tx_buf,
+						       xfer->rx_buf);
+			mcfqspi_wr_qir(mcfqspi, 0);
+
+			if (xfer->delay_usecs)
+				udelay(xfer->delay_usecs);
+			if (xfer->cs_change) {
+				if (!list_is_last(&xfer->transfer_list,
+						  &msg->transfers))
+					mcfqspi_cs_deselect(mcfqspi,
+							    spi->chip_select,
+							    cs_high);
+			} else {
+				if (list_is_last(&xfer->transfer_list,
+						 &msg->transfers))
+					mcfqspi_cs_deselect(mcfqspi,
+							    spi->chip_select,
+							    cs_high);
+			}
+			msg->actual_length += xfer->len;
+		}
+		msg->status = status;
+		msg->complete(msg->context);
+
+		spin_lock_irqsave(&mcfqspi->lock, flags);
+	}
+	spin_unlock_irqrestore(&mcfqspi->lock, flags);
+}
+
+static int mcfqspi_transfer(struct spi_device *spi, struct spi_message *msg)
+{
+	struct mcfqspi *mcfqspi;
+	struct spi_transfer *xfer;
+	unsigned long flags;
+
+	mcfqspi = spi_master_get_devdata(spi->master);
+
+	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+		if (xfer->bits_per_word && ((xfer->bits_per_word < 8)
+					|| (xfer->bits_per_word > 16))) {
+			dev_dbg(&spi->dev,
+				"%d bits per word is not supported\n",
+				xfer->bits_per_word);
+			goto fail;
+		}
+		if (xfer->speed_hz) {
+			u32 real_speed = MCFQSPI_BUSCLK /
+				mcfqspi_qmr_baud(xfer->speed_hz);
+			if (real_speed != xfer->speed_hz)
+				dev_dbg(&spi->dev,
+					"using speed %d instead of %d\n",
+					real_speed, xfer->speed_hz);
+		}
+	}
+	msg->status = -EINPROGRESS;
+	msg->actual_length = 0;
+
+	spin_lock_irqsave(&mcfqspi->lock, flags);
+	list_add_tail(&msg->queue, &mcfqspi->msgq);
+	queue_work(mcfqspi->workq, &mcfqspi->work);
+	spin_unlock_irqrestore(&mcfqspi->lock, flags);
+
+	return 0;
+fail:
+	msg->status = -EINVAL;
+	return -EINVAL;
+}
+
+static int mcfqspi_setup(struct spi_device *spi)
+{
+	if ((spi->bits_per_word < 8) || (spi->bits_per_word > 16)) {
+		dev_dbg(&spi->dev, "%d bits per word is not supported\n",
+			spi->bits_per_word);
+		return -EINVAL;
+	}
+	if (spi->chip_select >= spi->master->num_chipselect) {
+		dev_dbg(&spi->dev, "%d chip select is out of range\n",
+			spi->chip_select);
+		return -EINVAL;
+	}
+
+	mcfqspi_cs_deselect(spi_master_get_devdata(spi->master),
+			    spi->chip_select, spi->mode & SPI_CS_HIGH);
+
+	dev_dbg(&spi->dev,
+			"bits per word %d, chip select %d, speed %d KHz\n",
+			spi->bits_per_word, spi->chip_select,
+			(MCFQSPI_BUSCLK / mcfqspi_qmr_baud(spi->max_speed_hz))
+			/ 1000);
+
+	return 0;
+}
+
+static int __devinit mcfqspi_probe(struct platform_device *pdev)
+{
+	struct spi_master *master;
+	struct mcfqspi *mcfqspi;
+	struct resource *res;
+	struct mcfqspi_platform_data *pdata;
+	int status;
+
+	master = spi_alloc_master(&pdev->dev, sizeof(*mcfqspi));
+	if (master == NULL) {
+		dev_dbg(&pdev->dev, "spi_alloc_master failed\n");
+		return -ENOMEM;
+	}
+
+	mcfqspi = spi_master_get_devdata(master);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_dbg(&pdev->dev, "platform_get_resource failed\n");
+		status = -ENXIO;
+		goto fail0;
+	}
+
+	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
+		dev_dbg(&pdev->dev, "request_mem_region failed\n");
+		status = -EBUSY;
+		goto fail0;
+	}
+
+	mcfqspi->iobase = ioremap(res->start, resource_size(res));
+	if (!mcfqspi->iobase) {
+		dev_dbg(&pdev->dev, "ioremap failed\n");
+		status = -ENOMEM;
+		goto fail1;
+	}
+
+	mcfqspi->irq = platform_get_irq(pdev, 0);
+	if (mcfqspi->irq < 0) {
+		dev_dbg(&pdev->dev, "platform_get_irq failed\n");
+		status = -ENXIO;
+		goto fail2;
+	}
+
+	status = request_irq(mcfqspi->irq, mcfqspi_irq_handler, IRQF_DISABLED,
+			     pdev->name, mcfqspi);
+	if (status) {
+		dev_dbg(&pdev->dev, "request_irq failed\n");
+		goto fail2;
+	}
+
+	mcfqspi->clk = clk_get(&pdev->dev, "qspi_clk");
+	if (IS_ERR(mcfqspi->clk)) {
+		dev_dbg(&pdev->dev, "clk_get failed\n");
+		status = PTR_ERR(mcfqspi->clk);
+		goto fail3;
+	}
+	clk_enable(mcfqspi->clk);
+
+	mcfqspi->workq = create_singlethread_workqueue(dev_name(master->dev.parent));
+	if (!mcfqspi->workq) {
+		dev_dbg(&pdev->dev, "create_workqueue failed\n");
+		status = -ENOMEM;
+		goto fail4;
+	}
+	INIT_WORK(&mcfqspi->work, mcfqspi_work);
+	spin_lock_init(&mcfqspi->lock);
+	INIT_LIST_HEAD(&mcfqspi->msgq);
+	init_waitqueue_head(&mcfqspi->waitq);
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_dbg(&pdev->dev, "platform data is missing\n");
+		goto fail5;
+	}
+	master->bus_num = pdata->bus_num;
+	master->num_chipselect = pdata->num_chipselect;
+
+	mcfqspi->cs_control = pdata->cs_control;
+	status = mcfqspi_cs_setup(mcfqspi);
+	if (status) {
+		dev_dbg(&pdev->dev, "error initializing cs_control\n");
+		goto fail5;
+	}
+
+	master->mode_bits = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA;
+	master->setup = mcfqspi_setup;
+	master->transfer = mcfqspi_transfer;
+
+	platform_set_drvdata(pdev, master);
+
+	status = spi_register_master(master);
+	if (status) {
+		dev_dbg(&pdev->dev, "spi_register_master failed\n");
+		goto fail6;
+	}
+	dev_info(&pdev->dev, "Coldfire QSPI bus driver\n");
+
+	return 0;
+
+fail6:
+	mcfqspi_cs_teardown(mcfqspi);
+fail5:
+	destroy_workqueue(mcfqspi->workq);
+fail4:
+	clk_disable(mcfqspi->clk);
+	clk_put(mcfqspi->clk);
+fail3:
+	free_irq(mcfqspi->irq, mcfqspi);
+fail2:
+	iounmap(mcfqspi->iobase);
+fail1:
+	release_mem_region(res->start, resource_size(res));
+fail0:
+	spi_master_put(master);
+
+	dev_dbg(&pdev->dev, "Coldfire QSPI probe failed\n");
+
+	return status;
+}
+
+static int __devexit mcfqspi_remove(struct platform_device *pdev)
+{
+	struct spi_master *master = platform_get_drvdata(pdev);
+	struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	/* disable the hardware (set the baud rate to 0) */
+	mcfqspi_wr_qmr(mcfqspi, MCFQSPI_QMR_MSTR);
+
+	platform_set_drvdata(pdev, NULL);
+	mcfqspi_cs_teardown(mcfqspi);
+	destroy_workqueue(mcfqspi->workq);
+	clk_disable(mcfqspi->clk);
+	clk_put(mcfqspi->clk);
+	free_irq(mcfqspi->irq, mcfqspi);
+	iounmap(mcfqspi->iobase);
+	release_mem_region(res->start, resource_size(res));
+	spi_unregister_master(master);
+	spi_master_put(master);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int mcfqspi_suspend(struct device *dev)
+{
+	struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
+
+	clk_disable(mcfqspi->clk);
+
+	return 0;
+}
+
+static int mcfqspi_resume(struct device *dev)
+{
+	struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
+
+	clk_enable(mcfqspi->clk);
+
+	return 0;
+}
+
+static struct dev_pm_ops mcfqspi_dev_pm_ops = {
+	.suspend	= mcfqspi_suspend,
+	.resume		= mcfqspi_resume,
+};
+
+#define	MCFQSPI_DEV_PM_OPS	(&mcfqspi_dev_pm_ops)
+#else
+#define	MCFQSPI_DEV_PM_OPS	NULL
+#endif
+
+static struct platform_driver mcfqspi_driver = {
+	.driver.name	= DRIVER_NAME,
+	.driver.owner	= THIS_MODULE,
+	.driver.pm	= MCFQSPI_DEV_PM_OPS,
+	.remove		= __devexit_p(mcfqspi_remove),
+};
+
+static int __init mcfqspi_init(void)
+{
+	return platform_driver_probe(&mcfqspi_driver, mcfqspi_probe);
+}
+module_init(mcfqspi_init);
+
+static void __exit mcfqspi_exit(void)
+{
+	platform_driver_unregister(&mcfqspi_driver);
+}
+module_exit(mcfqspi_exit);
+
+MODULE_AUTHOR("Steven King <[e-mail]>");
+MODULE_DESCRIPTION("Coldfire QSPI Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);

drivers/spi/davinci_spi.c

···
+/*
+ * Copyright (C) 2009 Texas Instruments.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
+
+#include <mach/spi.h>
+#include <mach/edma.h>
+
+#define SPI_NO_RESOURCE		((resource_size_t)-1)
+
+#define SPI_MAX_CHIPSELECT	2
+
+#define CS_DEFAULT	0xFF
+
+#define SPI_BUFSIZ	(SMP_CACHE_BYTES + 1)
+#define DAVINCI_DMA_DATA_TYPE_S8	0x01
+#define DAVINCI_DMA_DATA_TYPE_S16	0x02
+#define DAVINCI_DMA_DATA_TYPE_S32	0x04
+
+#define SPIFMT_PHASE_MASK	BIT(16)
+#define SPIFMT_POLARITY_MASK	BIT(17)
+#define SPIFMT_DISTIMER_MASK	BIT(18)
+#define SPIFMT_SHIFTDIR_MASK	BIT(20)
+#define SPIFMT_WAITENA_MASK	BIT(21)
+#define SPIFMT_PARITYENA_MASK	BIT(22)
+#define SPIFMT_ODD_PARITY_MASK	BIT(23)
+#define SPIFMT_WDELAY_MASK	0x3f000000u
+#define SPIFMT_WDELAY_SHIFT	24
+#define SPIFMT_CHARLEN_MASK	0x0000001Fu
+
+/* SPIGCR1 */
+#define SPIGCR1_SPIENA_MASK	0x01000000u
+
+/* SPIPC0 */
+#define SPIPC0_DIFUN_MASK	BIT(11)		/* MISO */
+#define SPIPC0_DOFUN_MASK	BIT(10)		/* MOSI */
+#define SPIPC0_CLKFUN_MASK	BIT(9)		/* CLK */
+#define SPIPC0_SPIENA_MASK	BIT(8)		/* nREADY */
+#define SPIPC0_EN1FUN_MASK	BIT(1)
+#define SPIPC0_EN0FUN_MASK	BIT(0)
+
+#define SPIINT_MASKALL		0x0101035F
+#define SPI_INTLVL_1		0x000001FFu
+#define SPI_INTLVL_0		0x00000000u
+
+/* SPIDAT1 */
+#define SPIDAT1_CSHOLD_SHIFT	28
+#define SPIDAT1_CSNR_SHIFT	16
+#define SPIGCR1_CLKMOD_MASK	BIT(1)
+#define SPIGCR1_MASTER_MASK     BIT(0)
+#define SPIGCR1_LOOPBACK_MASK	BIT(16)
+
+/* SPIBUF */
+#define SPIBUF_TXFULL_MASK	BIT(29)
+#define SPIBUF_RXEMPTY_MASK	BIT(31)
+
+/* Error Masks */
+#define SPIFLG_DLEN_ERR_MASK		BIT(0)
+#define SPIFLG_TIMEOUT_MASK		BIT(1)
+#define SPIFLG_PARERR_MASK		BIT(2)
+#define SPIFLG_DESYNC_MASK		BIT(3)
+#define SPIFLG_BITERR_MASK		BIT(4)
+#define SPIFLG_OVRRUN_MASK		BIT(6)
+#define SPIFLG_RX_INTR_MASK		BIT(8)
+#define SPIFLG_TX_INTR_MASK		BIT(9)
+#define SPIFLG_BUF_INIT_ACTIVE_MASK	BIT(24)
+#define SPIFLG_MASK			(SPIFLG_DLEN_ERR_MASK \
+				| SPIFLG_TIMEOUT_MASK | SPIFLG_PARERR_MASK \
+				| SPIFLG_DESYNC_MASK | SPIFLG_BITERR_MASK \
+				| SPIFLG_OVRRUN_MASK | SPIFLG_RX_INTR_MASK \
+				| SPIFLG_TX_INTR_MASK \
+				| SPIFLG_BUF_INIT_ACTIVE_MASK)
+
+#define SPIINT_DLEN_ERR_INTR	BIT(0)
+#define SPIINT_TIMEOUT_INTR	BIT(1)
+#define SPIINT_PARERR_INTR	BIT(2)
+#define SPIINT_DESYNC_INTR	BIT(3)
+#define SPIINT_BITERR_INTR	BIT(4)
+#define SPIINT_OVRRUN_INTR	BIT(6)
+#define SPIINT_RX_INTR		BIT(8)
+#define SPIINT_TX_INTR		BIT(9)
+#define SPIINT_DMA_REQ_EN	BIT(16)
+#define SPIINT_ENABLE_HIGHZ	BIT(24)
+
+#define SPI_T2CDELAY_SHIFT	16
+#define SPI_C2TDELAY_SHIFT	24
+
+/* SPI Controller registers */
+#define SPIGCR0		0x00
+#define SPIGCR1		0x04
+#define SPIINT		0x08
+#define SPILVL		0x0c
+#define SPIFLG		0x10
+#define SPIPC0		0x14
+#define SPIPC1		0x18
+#define SPIPC2		0x1c
+#define SPIPC3		0x20
+#define SPIPC4		0x24
+#define SPIPC5		0x28
+#define SPIPC6		0x2c
+#define SPIPC7		0x30
+#define SPIPC8		0x34
+#define SPIDAT0		0x38
+#define SPIDAT1		0x3c
+#define SPIBUF		0x40
+#define SPIEMU		0x44
+#define SPIDELAY	0x48
+#define SPIDEF		0x4c
+#define SPIFMT0		0x50
+#define SPIFMT1		0x54
+#define SPIFMT2		0x58
+#define SPIFMT3		0x5c
+#define TGINTVEC0	0x60
+#define TGINTVEC1	0x64
+
+struct davinci_spi_slave {
+	u32	cmd_to_write;
+	u32	clk_ctrl_to_write;
+	u32	bytes_per_word;
+	u8	active_cs;
+};
+
+/* We have 2 DMA channels per CS, one for RX and one for TX */
+struct davinci_spi_dma {
+	int			dma_tx_channel;
+	int			dma_rx_channel;
+	int			dma_tx_sync_dev;
+	int			dma_rx_sync_dev;
+	enum dma_event_q	eventq;
+
+	struct completion	dma_tx_completion;
+	struct completion	dma_rx_completion;
+};
+
+/* SPI Controller driver's private data. */
+struct davinci_spi {
+	struct spi_bitbang	bitbang;
+	struct clk		*clk;
+
+	u8			version;
+	resource_size_t		pbase;
+	void __iomem		*base;
+	size_t			region_size;
+	u32			irq;
+	struct completion	done;
+
+	const void		*tx;
+	void			*rx;
+	u8			*tmp_buf;
+	int			count;
+	struct davinci_spi_dma	*dma_channels;
+	struct			davinci_spi_platform_data *pdata;
+
+	void			(*get_rx)(u32 rx_data, struct davinci_spi *);
+	u32			(*get_tx)(struct davinci_spi *);
+
+	struct davinci_spi_slave slave[SPI_MAX_CHIPSELECT];
+};
+
+static unsigned use_dma;
+
+static void davinci_spi_rx_buf_u8(u32 data, struct davinci_spi *davinci_spi)
+{
+	u8 *rx = davinci_spi->rx;
+
+	*rx++ = (u8)data;
+	davinci_spi->rx = rx;
+}
+
+static void davinci_spi_rx_buf_u16(u32 data, struct davinci_spi *davinci_spi)
+{
+	u16 *rx = davinci_spi->rx;
+
+	*rx++ = (u16)data;
+	davinci_spi->rx = rx;
+}
+
+static u32 davinci_spi_tx_buf_u8(struct davinci_spi *davinci_spi)
+{
+	u32 data;
+	const u8 *tx = davinci_spi->tx;
+
+	data = *tx++;
+	davinci_spi->tx = tx;
+	return data;
+}
+
+static u32 davinci_spi_tx_buf_u16(struct davinci_spi *davinci_spi)
+{
+	u32 data;
+	const u16 *tx = davinci_spi->tx;
+
+	data = *tx++;
+	davinci_spi->tx = tx;
+	return data;
+}
+
+static inline void set_io_bits(void __iomem *addr, u32 bits)
+{
+	u32 v = ioread32(addr);
+
+	v |= bits;
+	iowrite32(v, addr);
+}
+
+static inline void clear_io_bits(void __iomem *addr, u32 bits)
+{
+	u32 v = ioread32(addr);
+
+	v &= ~bits;
+	iowrite32(v, addr);
+}
+
+static inline void set_fmt_bits(void __iomem *addr, u32 bits, int cs_num)
+{
+	set_io_bits(addr + SPIFMT0 + (0x4 * cs_num), bits);
+}
+
+static inline void clear_fmt_bits(void __iomem *addr, u32 bits, int cs_num)
+{
+	clear_io_bits(addr + SPIFMT0 + (0x4 * cs_num), bits);
+}
+
+static void davinci_spi_set_dma_req(const struct spi_device *spi, int enable)
+{
+	struct davinci_spi *davinci_spi = spi_master_get_devdata(spi->master);
+
+	if (enable)
+		set_io_bits(davinci_spi->base + SPIINT, SPIINT_DMA_REQ_EN);
+	else
+		clear_io_bits(davinci_spi->base + SPIINT, SPIINT_DMA_REQ_EN);
+}
+
+/*
+ * Interface to control the chip select signal
+ */
+static void davinci_spi_chipselect(struct spi_device *spi, int value)
+{
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_platform_data *pdata;
+	u32 data1_reg_val = 0;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	pdata = davinci_spi->pdata;
+
+	/*
+	 * Board specific chip select logic decides the polarity and cs
+	 * line for the controller
+	 */
+	if (value == BITBANG_CS_INACTIVE) {
+		set_io_bits(davinci_spi->base + SPIDEF, CS_DEFAULT);
+
+		data1_reg_val |= CS_DEFAULT << SPIDAT1_CSNR_SHIFT;
+		iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1);
+
+		while ((ioread32(davinci_spi->base + SPIBUF)
+					& SPIBUF_RXEMPTY_MASK) == 0)
+			cpu_relax();
+	}
+}
+
+/**
+ * davinci_spi_setup_transfer - This functions will determine transfer method
+ * @spi: spi device on which data transfer to be done
+ * @t: spi transfer in which transfer info is filled
+ *
+ * This function determines data transfer method (8/16/32 bit transfer).
+ * It will also set the SPI Clock Control register according to
+ * SPI slave device freq.
+ */
+static int davinci_spi_setup_transfer(struct spi_device *spi,
+		struct spi_transfer *t)
+{
+
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_platform_data *pdata;
+	u8 bits_per_word = 0;
+	u32 hz = 0, prescale;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	pdata = davinci_spi->pdata;
+
+	if (t) {
+		bits_per_word = t->bits_per_word;
+		hz = t->speed_hz;
+	}
+
+	/* if bits_per_word is not set then set it default */
+	if (!bits_per_word)
+		bits_per_word = spi->bits_per_word;
+
+	/*
+	 * Assign function pointer to appropriate transfer method
+	 * 8bit, 16bit or 32bit transfer
+	 */
+	if (bits_per_word <= 8 && bits_per_word >= 2) {
+		davinci_spi->get_rx = davinci_spi_rx_buf_u8;
+		davinci_spi->get_tx = davinci_spi_tx_buf_u8;
+		davinci_spi->slave[spi->chip_select].bytes_per_word = 1;
+	} else if (bits_per_word <= 16 && bits_per_word >= 2) {
+		davinci_spi->get_rx = davinci_spi_rx_buf_u16;
+		davinci_spi->get_tx = davinci_spi_tx_buf_u16;
+		davinci_spi->slave[spi->chip_select].bytes_per_word = 2;
+	} else
+		return -EINVAL;
+
+	if (!hz)
+		hz = spi->max_speed_hz;
+
+	clear_fmt_bits(davinci_spi->base, SPIFMT_CHARLEN_MASK,
+			spi->chip_select);
+	set_fmt_bits(davinci_spi->base, bits_per_word & 0x1f,
+			spi->chip_select);
+
+	prescale = ((clk_get_rate(davinci_spi->clk) / hz) - 1) & 0xff;
+
+	clear_fmt_bits(davinci_spi->base, 0x0000ff00, spi->chip_select);
+	set_fmt_bits(davinci_spi->base, prescale << 8, spi->chip_select);
+
+	return 0;
+}
+
+static void davinci_spi_dma_rx_callback(unsigned lch, u16 ch_status, void *data)
+{
+	struct spi_device *spi = (struct spi_device *)data;
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_dma *davinci_spi_dma;
+	struct davinci_spi_platform_data *pdata;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	davinci_spi_dma = &(davinci_spi->dma_channels[spi->chip_select]);
+	pdata = davinci_spi->pdata;
+
+	if (ch_status == DMA_COMPLETE)
+		edma_stop(davinci_spi_dma->dma_rx_channel);
+	else
+		edma_clean_channel(davinci_spi_dma->dma_rx_channel);
+
+	complete(&davinci_spi_dma->dma_rx_completion);
+	/* We must disable the DMA RX request */
+	davinci_spi_set_dma_req(spi, 0);
+}
+
+static void davinci_spi_dma_tx_callback(unsigned lch, u16 ch_status, void *data)
+{
+	struct spi_device *spi = (struct spi_device *)data;
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_dma *davinci_spi_dma;
+	struct davinci_spi_platform_data *pdata;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	davinci_spi_dma = &(davinci_spi->dma_channels[spi->chip_select]);
+	pdata = davinci_spi->pdata;
+
+	if (ch_status == DMA_COMPLETE)
+		edma_stop(davinci_spi_dma->dma_tx_channel);
+	else
+		edma_clean_channel(davinci_spi_dma->dma_tx_channel);
+
+	complete(&davinci_spi_dma->dma_tx_completion);
+	/* We must disable the DMA TX request */
+	davinci_spi_set_dma_req(spi, 0);
+}
+
+static int davinci_spi_request_dma(struct spi_device *spi)
+{
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_dma *davinci_spi_dma;
+	struct davinci_spi_platform_data *pdata;
+	struct device *sdev;
+	int r;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+	pdata = davinci_spi->pdata;
+	sdev = davinci_spi->bitbang.master->dev.parent;
+
+	r = edma_alloc_channel(davinci_spi_dma->dma_rx_sync_dev,
+				davinci_spi_dma_rx_callback, spi,
+				davinci_spi_dma->eventq);
+	if (r < 0) {
+		dev_dbg(sdev, "Unable to request DMA channel for SPI RX\n");
+		return -EAGAIN;
+	}
+	davinci_spi_dma->dma_rx_channel = r;
+	r = edma_alloc_channel(davinci_spi_dma->dma_tx_sync_dev,
+				davinci_spi_dma_tx_callback, spi,
+				davinci_spi_dma->eventq);
+	if (r < 0) {
+		edma_free_channel(davinci_spi_dma->dma_rx_channel);
+		davinci_spi_dma->dma_rx_channel = -1;
+		dev_dbg(sdev, "Unable to request DMA channel for SPI TX\n");
+		return -EAGAIN;
+	}
+	davinci_spi_dma->dma_tx_channel = r;
+
+	return 0;
+}
+
+/**
+ * davinci_spi_setup - This functions will set default transfer method
+ * @spi: spi device on which data transfer to be done
+ *
+ * This functions sets the default transfer method.
+ */
+
+static int davinci_spi_setup(struct spi_device *spi)
+{
+	int retval;
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_dma *davinci_spi_dma;
+	struct device *sdev;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	sdev = davinci_spi->bitbang.master->dev.parent;
+
+	/* if bits per word length is zero then set it default 8 */
+	if (!spi->bits_per_word)
+		spi->bits_per_word = 8;
+
+	davinci_spi->slave[spi->chip_select].cmd_to_write = 0;
+
+	if (use_dma && davinci_spi->dma_channels) {
+		davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+		if ((davinci_spi_dma->dma_rx_channel == -1)
+				|| (davinci_spi_dma->dma_tx_channel == -1)) {
+			retval = davinci_spi_request_dma(spi);
+			if (retval < 0)
+				return retval;
+		}
+	}
+
+	/*
+	 * SPI in DaVinci and DA8xx operate between
+	 * 600 KHz and 50 MHz
+	 */
+	if (spi->max_speed_hz < 600000 || spi->max_speed_hz > 50000000) {
+		dev_dbg(sdev, "Operating frequency is not in acceptable "
+				"range\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Set up SPIFMTn register, unique to this chipselect.
+	 *
+	 * NOTE: we could do all of these with one write.  Also, some
+	 * of the "version 2" features are found in chips that don't
+	 * support all of them...
+	 */
+	if (spi->mode & SPI_LSB_FIRST)
+		set_fmt_bits(davinci_spi->base, SPIFMT_SHIFTDIR_MASK,
+				spi->chip_select);
+	else
+		clear_fmt_bits(davinci_spi->base, SPIFMT_SHIFTDIR_MASK,
+				spi->chip_select);
+
+	if (spi->mode & SPI_CPOL)
+		set_fmt_bits(davinci_spi->base, SPIFMT_POLARITY_MASK,
+				spi->chip_select);
+	else
+		clear_fmt_bits(davinci_spi->base, SPIFMT_POLARITY_MASK,
+				spi->chip_select);
+
+	if (!(spi->mode & SPI_CPHA))
+		set_fmt_bits(davinci_spi->base, SPIFMT_PHASE_MASK,
+				spi->chip_select);
+	else
+		clear_fmt_bits(davinci_spi->base, SPIFMT_PHASE_MASK,
+				spi->chip_select);
+
+	/*
+	 * Version 1 hardware supports two basic SPI modes:
+	 *  - Standard SPI mode uses 4 pins, with chipselect
+	 *  - 3 pin SPI is a 4 pin variant without CS (SPI_NO_CS)
+	 *	(distinct from SPI_3WIRE, with just one data wire;
+	 *	or similar variants without MOSI or without MISO)
+	 *
+	 * Version 2 hardware supports an optional handshaking signal,
+	 * so it can support two more modes:
+	 *  - 5 pin SPI variant is standard SPI plus SPI_READY
+	 *  - 4 pin with enable is (SPI_READY | SPI_NO_CS)
+	 */
+
+	if (davinci_spi->version == SPI_VERSION_2) {
+		clear_fmt_bits(davinci_spi->base, SPIFMT_WDELAY_MASK,
+				spi->chip_select);
+		set_fmt_bits(davinci_spi->base,
+				(davinci_spi->pdata->wdelay
+						<< SPIFMT_WDELAY_SHIFT)
+					& SPIFMT_WDELAY_MASK,
+				spi->chip_select);
+
+		if (davinci_spi->pdata->odd_parity)
+			set_fmt_bits(davinci_spi->base,
+					SPIFMT_ODD_PARITY_MASK,
+					spi->chip_select);
+		else
+			clear_fmt_bits(davinci_spi->base,
+					SPIFMT_ODD_PARITY_MASK,
+					spi->chip_select);
+
+		if (davinci_spi->pdata->parity_enable)
+			set_fmt_bits(davinci_spi->base,
+					SPIFMT_PARITYENA_MASK,
+					spi->chip_select);
+		else
+			clear_fmt_bits(davinci_spi->base,
+					SPIFMT_PARITYENA_MASK,
+					spi->chip_select);
+
+		if (davinci_spi->pdata->wait_enable)
+			set_fmt_bits(davinci_spi->base,
+					SPIFMT_WAITENA_MASK,
+					spi->chip_select);
+		else
+			clear_fmt_bits(davinci_spi->base,
+					SPIFMT_WAITENA_MASK,
+					spi->chip_select);
+
+		if (davinci_spi->pdata->timer_disable)
+			set_fmt_bits(davinci_spi->base,
+					SPIFMT_DISTIMER_MASK,
+					spi->chip_select);
+		else
+			clear_fmt_bits(davinci_spi->base,
+					SPIFMT_DISTIMER_MASK,
+					spi->chip_select);
+	}
+
+	retval = davinci_spi_setup_transfer(spi, NULL);
+
+	return retval;
+}
+
+static void davinci_spi_cleanup(struct spi_device *spi)
+{
+	struct davinci_spi *davinci_spi = spi_master_get_devdata(spi->master);
+	struct davinci_spi_dma *davinci_spi_dma;
+
+	davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+	if (use_dma && davinci_spi->dma_channels) {
+		davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+		if ((davinci_spi_dma->dma_rx_channel != -1)
+				&& (davinci_spi_dma->dma_tx_channel != -1)) {
+			edma_free_channel(davinci_spi_dma->dma_tx_channel);
+			edma_free_channel(davinci_spi_dma->dma_rx_channel);
+		}
+	}
+}
+
+static int davinci_spi_bufs_prep(struct spi_device *spi,
+				 struct davinci_spi *davinci_spi)
+{
+	int op_mode = 0;
+
+	/*
+	 * REVISIT  unless devices disagree about SPI_LOOP or
+	 * SPI_READY (SPI_NO_CS only allows one device!), this
+	 * should not need to be done before each message...
+	 * optimize for both flags staying cleared.
+	 */
+
+	op_mode = SPIPC0_DIFUN_MASK
+		| SPIPC0_DOFUN_MASK
+		| SPIPC0_CLKFUN_MASK;
+	if (!(spi->mode & SPI_NO_CS))
+		op_mode |= 1 << spi->chip_select;
+	if (spi->mode & SPI_READY)
+		op_mode |= SPIPC0_SPIENA_MASK;
+
+	iowrite32(op_mode, davinci_spi->base + SPIPC0);
+
+	if (spi->mode & SPI_LOOP)
+		set_io_bits(davinci_spi->base + SPIGCR1,
+				SPIGCR1_LOOPBACK_MASK);
+	else
+		clear_io_bits(davinci_spi->base + SPIGCR1,
+				SPIGCR1_LOOPBACK_MASK);
+
+	return 0;
+}
+
+static int davinci_spi_check_error(struct davinci_spi *davinci_spi,
+				   int int_status)
+{
+	struct device *sdev = davinci_spi->bitbang.master->dev.parent;
+
+	if (int_status & SPIFLG_TIMEOUT_MASK) {
+		dev_dbg(sdev, "SPI Time-out Error\n");
+		return -ETIMEDOUT;
+	}
+	if (int_status & SPIFLG_DESYNC_MASK) {
+		dev_dbg(sdev, "SPI Desynchronization Error\n");
+		return -EIO;
+	}
+	if (int_status & SPIFLG_BITERR_MASK) {
+		dev_dbg(sdev, "SPI Bit error\n");
+		return -EIO;
+	}
+
+	if (davinci_spi->version == SPI_VERSION_2) {
+		if (int_status & SPIFLG_DLEN_ERR_MASK) {
+			dev_dbg(sdev, "SPI Data Length Error\n");
+			return -EIO;
+		}
+		if (int_status & SPIFLG_PARERR_MASK) {
+			dev_dbg(sdev, "SPI Parity Error\n");
+			return -EIO;
+		}
+		if (int_status & SPIFLG_OVRRUN_MASK) {
+			dev_dbg(sdev, "SPI Data Overrun error\n");
+			return -EIO;
+		}
+		if (int_status & SPIFLG_TX_INTR_MASK) {
+			dev_dbg(sdev, "SPI TX intr bit set\n");
+			return -EIO;
+		}
+		if (int_status & SPIFLG_BUF_INIT_ACTIVE_MASK) {
+			dev_dbg(sdev, "SPI Buffer Init Active\n");
+			return -EBUSY;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * davinci_spi_bufs - functions which will handle transfer data
+ * @spi: spi device on which data transfer to be done
+ * @t: spi transfer in which transfer info is filled
+ *
+ * This function will put data to be transferred into data register
+ * of SPI controller and then wait until the completion will be marked
+ * by the IRQ Handler.
+ */
+static int davinci_spi_bufs_pio(struct spi_device *spi, struct spi_transfer *t)
+{
+	struct davinci_spi *davinci_spi;
+	int int_status, count, ret;
+	u8 conv, tmp;
+	u32 tx_data, data1_reg_val;
+	u32 buf_val, flg_val;
+	struct davinci_spi_platform_data *pdata;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	pdata = davinci_spi->pdata;
+
+	davinci_spi->tx = t->tx_buf;
+	davinci_spi->rx = t->rx_buf;
+
+	/* convert len to words based on bits_per_word */
+	conv = davinci_spi->slave[spi->chip_select].bytes_per_word;
+	davinci_spi->count = t->len / conv;
+
+	INIT_COMPLETION(davinci_spi->done);
+
+	ret = davinci_spi_bufs_prep(spi, davinci_spi);
+	if (ret)
+		return ret;
+
+	/* Enable SPI */
+	set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
+
+	iowrite32(0 | (pdata->c2tdelay << SPI_C2TDELAY_SHIFT) |
+			(pdata->t2cdelay << SPI_T2CDELAY_SHIFT),
+			davinci_spi->base + SPIDELAY);
+
+	count = davinci_spi->count;
+	data1_reg_val = pdata->cs_hold << SPIDAT1_CSHOLD_SHIFT;
+	tmp = ~(0x1 << spi->chip_select);
+
+	clear_io_bits(davinci_spi->base + SPIDEF, ~tmp);
+
+	data1_reg_val |= tmp << SPIDAT1_CSNR_SHIFT;
+
+	while ((ioread32(davinci_spi->base + SPIBUF)
+				& SPIBUF_RXEMPTY_MASK) == 0)
+		cpu_relax();
+
+	/* Determine the command to execute READ or WRITE */
+	if (t->tx_buf) {
+		clear_io_bits(davinci_spi->base + SPIINT, SPIINT_MASKALL);
+
+		while (1) {
+			tx_data = davinci_spi->get_tx(davinci_spi);
+
+			data1_reg_val &= ~(0xFFFF);
+			data1_reg_val |= (0xFFFF & tx_data);
+
+			buf_val = ioread32(davinci_spi->base + SPIBUF);
+			if ((buf_val & SPIBUF_TXFULL_MASK) == 0) {
+				iowrite32(data1_reg_val,
+						davinci_spi->base + SPIDAT1);
+
+				count--;
+			}
+			while (ioread32(davinci_spi->base + SPIBUF)
+					& SPIBUF_RXEMPTY_MASK)
+				cpu_relax();
+
+			/* getting the returned byte */
+			if (t->rx_buf) {
+				buf_val = ioread32(davinci_spi->base + SPIBUF);
+				davinci_spi->get_rx(buf_val, davinci_spi);
+			}
+			if (count <= 0)
+				break;
+		}
+	} else {
+		if (pdata->poll_mode) {
+			while (1) {
+				/* keeps the serial clock going */
+				if ((ioread32(davinci_spi->base + SPIBUF)
+						& SPIBUF_TXFULL_MASK) == 0)
+					iowrite32(data1_reg_val,
+						davinci_spi->base + SPIDAT1);
+
+				while (ioread32(davinci_spi->base + SPIBUF) &
+						SPIBUF_RXEMPTY_MASK)
+					cpu_relax();
+
+				flg_val = ioread32(davinci_spi->base + SPIFLG);
+				buf_val = ioread32(davinci_spi->base + SPIBUF);
+
+				davinci_spi->get_rx(buf_val, davinci_spi);
+
+				count--;
+				if (count <= 0)
+					break;
+			}
+		} else {	/* Receive in Interrupt mode */
+			int i;
+
+			for (i = 0; i < davinci_spi->count; i++) {
+				set_io_bits(davinci_spi->base + SPIINT,
+						SPIINT_BITERR_INTR
+						| SPIINT_OVRRUN_INTR
+						| SPIINT_RX_INTR);
+
+				iowrite32(data1_reg_val,
+						davinci_spi->base + SPIDAT1);
+
+				while (ioread32(davinci_spi->base + SPIINT) &
+						SPIINT_RX_INTR)
+					cpu_relax();
+			}
+			iowrite32((data1_reg_val & 0x0ffcffff),
+					davinci_spi->base + SPIDAT1);
+		}
+	}
+
+	/*
+	 * Check for bit error, desync error,parity error,timeout error and
+	 * receive overflow errors
+	 */
+	int_status = ioread32(davinci_spi->base + SPIFLG);
+
+	ret = davinci_spi_check_error(davinci_spi, int_status);
+	if (ret != 0)
+		return ret;
+
+	/* SPI Framework maintains the count only in bytes so convert back */
+	davinci_spi->count *= conv;
+
+	return t->len;
+}
+
+#define DAVINCI_DMA_DATA_TYPE_S8	0x01
+#define DAVINCI_DMA_DATA_TYPE_S16	0x02
+#define DAVINCI_DMA_DATA_TYPE_S32	0x04
+
+static int davinci_spi_bufs_dma(struct spi_device *spi, struct spi_transfer *t)
+{
+	struct davinci_spi *davinci_spi;
+	int int_status = 0;
+	int count, temp_count;
+	u8 conv = 1;
+	u8 tmp;
+	u32 data1_reg_val;
+	struct davinci_spi_dma *davinci_spi_dma;
+	int word_len, data_type, ret;
+	unsigned long tx_reg, rx_reg;
+	struct davinci_spi_platform_data *pdata;
+	struct device *sdev;
+
+	davinci_spi = spi_master_get_devdata(spi->master);
+	pdata = davinci_spi->pdata;
+	sdev = davinci_spi->bitbang.master->dev.parent;
+
+	davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+	tx_reg = (unsigned long)davinci_spi->pbase + SPIDAT1;
+	rx_reg = (unsigned long)davinci_spi->pbase + SPIBUF;
+
+	davinci_spi->tx = t->tx_buf;
+	davinci_spi->rx = t->rx_buf;
+
+	/* convert len to words based on bits_per_word */
+	conv = davinci_spi->slave[spi->chip_select].bytes_per_word;
+	davinci_spi->count = t->len / conv;
+
+	INIT_COMPLETION(davinci_spi->done);
+
+	init_completion(&davinci_spi_dma->dma_rx_completion);
+	init_completion(&davinci_spi_dma->dma_tx_completion);
+
+	word_len = conv * 8;
+
+	if (word_len <= 8)
+		data_type = DAVINCI_DMA_DATA_TYPE_S8;
+	else if (word_len <= 16)
+		data_type = DAVINCI_DMA_DATA_TYPE_S16;
+	else if (word_len <= 32)
+		data_type = DAVINCI_DMA_DATA_TYPE_S32;
+	else
+		return -EINVAL;
+
+	ret = davinci_spi_bufs_prep(spi, davinci_spi);
+	if (ret)
+		return ret;
+
+	/* Put delay val if required */
+	iowrite32(0 | (pdata->c2tdelay << SPI_C2TDELAY_SHIFT) |
+			(pdata->t2cdelay << SPI_T2CDELAY_SHIFT),
+			davinci_spi->base + SPIDELAY);
+
+	count = davinci_spi->count;	/* the number of elements */
+	data1_reg_val = pdata->cs_hold << SPIDAT1_CSHOLD_SHIFT;
+
+	/* CS default = 0xFF */
+	tmp = ~(0x1 << spi->chip_select);
+
+	clear_io_bits(davinci_spi->base + SPIDEF, ~tmp);
+
+	data1_reg_val |= tmp << SPIDAT1_CSNR_SHIFT;
+
+	/* disable all interrupts for dma transfers */
+	clear_io_bits(davinci_spi->base + SPIINT, SPIINT_MASKALL);
+	/* Disable SPI to write configuration bits in SPIDAT */
+	clear_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
+	iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1);
+	/* Enable SPI */
+	set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
+
+	while ((ioread32(davinci_spi->base + SPIBUF)
+				& SPIBUF_RXEMPTY_MASK) == 0)
+		cpu_relax();
+
+
+	if (t->tx_buf) {
+		t->tx_dma = dma_map_single(&spi->dev, (void *)t->tx_buf, count,
+				DMA_TO_DEVICE);
+		if (dma_mapping_error(&spi->dev, t->tx_dma)) {
+			dev_dbg(sdev, "Unable to DMA map a %d bytes"
+				" TX buffer\n", count);
+			return -ENOMEM;
+		}
+		temp_count = count;
+	} else {
+		/* We need TX clocking for RX transaction */
+		t->tx_dma = dma_map_single(&spi->dev,
+				(void *)davinci_spi->tmp_buf, count + 1,
+				DMA_TO_DEVICE);
+		if (dma_mapping_error(&spi->dev, t->tx_dma)) {
+			dev_dbg(sdev, "Unable to DMA map a %d bytes"
+				" TX tmp buffer\n", count);
+			return -ENOMEM;
+		}
+		temp_count = count + 1;
+	}
+
+	edma_set_transfer_params(davinci_spi_dma->dma_tx_channel,
+					data_type, temp_count, 1, 0, ASYNC);
+	edma_set_dest(davinci_spi_dma->dma_tx_channel, tx_reg, INCR, W8BIT);
+	edma_set_src(davinci_spi_dma->dma_tx_channel, t->tx_dma, INCR, W8BIT);
+	edma_set_src_index(davinci_spi_dma->dma_tx_channel, data_type, 0);
+	edma_set_dest_index(davinci_spi_dma->dma_tx_channel, 0, 0);
+
+	if (t->rx_buf) {
+		/* initiate transaction */
+		iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1);
+
+		t->rx_dma = dma_map_single(&spi->dev, (void *)t->rx_buf, count,
+				DMA_FROM_DEVICE);
+		if (dma_mapping_error(&spi->dev, t->rx_dma)) {
+			dev_dbg(sdev, "Couldn't DMA map a %d bytes RX buffer\n",
+					count);
+			if (t->tx_buf != NULL)
+				dma_unmap_single(NULL, t->tx_dma,
+						 count, DMA_TO_DEVICE);
+			return -ENOMEM;
+		}
+		edma_set_transfer_params(davinci_spi_dma->dma_rx_channel,
+				data_type, count, 1, 0, ASYNC);
+		edma_set_src(davinci_spi_dma->dma_rx_channel,
+				rx_reg, INCR, W8BIT);
+		edma_set_dest(davinci_spi_dma->dma_rx_channel,
+				t->rx_dma, INCR, W8BIT);
+		edma_set_src_index(davinci_spi_dma->dma_rx_channel, 0, 0);
+		edma_set_dest_index(davinci_spi_dma->dma_rx_channel,
+				data_type, 0);
+	}
+
+	if ((t->tx_buf) || (t->rx_buf))
+		edma_start(davinci_spi_dma->dma_tx_channel);
+
+	if (t->rx_buf)
+		edma_start(davinci_spi_dma->dma_rx_channel);
+
+	if ((t->rx_buf) || (t->tx_buf))
+		davinci_spi_set_dma_req(spi, 1);
+
+	if (t->tx_buf)
+		wait_for_completion_interruptible(
+				&davinci_spi_dma->dma_tx_completion);
+
+	if (t->rx_buf)
+		wait_for_completion_interruptible(
+				&davinci_spi_dma->dma_rx_completion);
+
+	dma_unmap_single(NULL, t->tx_dma, temp_count, DMA_TO_DEVICE);
+
+	if (t->rx_buf)
+		dma_unmap_single(NULL, t->rx_dma, count, DMA_FROM_DEVICE);
+
+	/*
+	 * Check for bit error, desync error,parity error,timeout error and
+	 * receive overflow errors
+	 */
+	int_status = ioread32(davinci_spi->base + SPIFLG);
+
+	ret = davinci_spi_check_error(davinci_spi, int_status);
+	if (ret != 0)
+		return ret;
+
+	/* SPI Framework maintains the count only in bytes so convert back */
+	davinci_spi->count *= conv;
+
+	return t->len;
+}
+
+/**
+ * davinci_spi_irq - IRQ handler for DaVinci SPI
+ * @irq: IRQ number for this SPI Master
+ * @context_data: structure for SPI Master controller davinci_spi
+ */
+static irqreturn_t davinci_spi_irq(s32 irq, void *context_data)
+{
+	struct davinci_spi *davinci_spi = context_data;
+	u32 int_status, rx_data = 0;
+	irqreturn_t ret = IRQ_NONE;
+
+	int_status = ioread32(davinci_spi->base + SPIFLG);
+
+	while ((int_status & SPIFLG_RX_INTR_MASK)) {
+		if (likely(int_status & SPIFLG_RX_INTR_MASK)) {
+			ret = IRQ_HANDLED;
+
+			rx_data = ioread32(davinci_spi->base + SPIBUF);
+			davinci_spi->get_rx(rx_data, davinci_spi);
+
+			/* Disable Receive Interrupt */
+			iowrite32(~(SPIINT_RX_INTR | SPIINT_TX_INTR),
+					davinci_spi->base + SPIINT);
+		} else
+			(void)davinci_spi_check_error(davinci_spi, int_status);
+
+		int_status = ioread32(davinci_spi->base + SPIFLG);
+	}
+
+	return ret;
+}
+
+/**
+ * davinci_spi_probe - probe function for SPI Master Controller
+ * @pdev: platform_device structure which contains plateform specific data
+ */
+static int davinci_spi_probe(struct platform_device *pdev)
+{
+	struct spi_master *master;
+	struct davinci_spi *davinci_spi;
+	struct davinci_spi_platform_data *pdata;
+	struct resource *r, *mem;
+	resource_size_t dma_rx_chan = SPI_NO_RESOURCE;
+	resource_size_t	dma_tx_chan = SPI_NO_RESOURCE;
+	resource_size_t	dma_eventq = SPI_NO_RESOURCE;
+	int i = 0, ret = 0;
+
+	pdata = pdev->dev.platform_data;
+	if (pdata == NULL) {
+		ret = -ENODEV;
+		goto err;
+	}
+
+	master = spi_alloc_master(&pdev->dev, sizeof(struct davinci_spi));
+	if (master == NULL) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	dev_set_drvdata(&pdev->dev, master);
+
+	davinci_spi = spi_master_get_devdata(master);
+	if (davinci_spi == NULL) {
+		ret = -ENOENT;
+		goto free_master;
+	}
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (r == NULL) {
+		ret = -ENOENT;
+		goto free_master;
+	}
+
+	davinci_spi->pbase = r->start;
+	davinci_spi->region_size = resource_size(r);
+	davinci_spi->pdata = pdata;
+
+	mem = request_mem_region(r->start, davinci_spi->region_size,
+					pdev->name);
+	if (mem == NULL) {
+		ret = -EBUSY;
+		goto free_master;
+	}
+
+	davinci_spi->base = (struct davinci_spi_reg __iomem *)
+			ioremap(r->start, davinci_spi->region_size);
+	if (davinci_spi->base == NULL) {
+		ret = -ENOMEM;
+		goto release_region;
+	}
+
+	davinci_spi->irq = platform_get_irq(pdev, 0);
+	if (davinci_spi->irq <= 0) {
+		ret = -EINVAL;
+		goto unmap_io;
+	}
+
+	ret = request_irq(davinci_spi->irq, davinci_spi_irq, IRQF_DISABLED,
+			  dev_name(&pdev->dev), davinci_spi);
+	if (ret)
+		goto unmap_io;
+
+	/* Allocate tmp_buf for tx_buf */
+	davinci_spi->tmp_buf = kzalloc(SPI_BUFSIZ, GFP_KERNEL);
+	if (davinci_spi->tmp_buf == NULL) {
+		ret = -ENOMEM;
+		goto irq_free;
+	}
+
+	davinci_spi->bitbang.master = spi_master_get(master);
+	if (davinci_spi->bitbang.master == NULL) {
+		ret = -ENODEV;
+		goto free_tmp_buf;
+	}
+
+	davinci_spi->clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(davinci_spi->clk)) {
+		ret = -ENODEV;
+		goto put_master;
+	}
+	clk_enable(davinci_spi->clk);
+
+
+	master->bus_num = pdev->id;
+	master->num_chipselect = pdata->num_chipselect;
+	master->setup = davinci_spi_setup;
+	master->cleanup = davinci_spi_cleanup;
+
+	davinci_spi->bitbang.chipselect = davinci_spi_chipselect;
+	davinci_spi->bitbang.setup_transfer = davinci_spi_setup_transfer;
+
+	davinci_spi->version = pdata->version;
+	use_dma = pdata->use_dma;
+
+	davinci_spi->bitbang.flags = SPI_NO_CS | SPI_LSB_FIRST | SPI_LOOP;
+	if (davinci_spi->version == SPI_VERSION_2)
+		davinci_spi->bitbang.flags |= SPI_READY;
+
+	if (use_dma) {
+			r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+			if (r)
+				dma_rx_chan = r->start;
+			r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+			if (r)
+				dma_tx_chan = r->start;
+			r = platform_get_resource(pdev, IORESOURCE_DMA, 2);
+			if (r)
+				dma_eventq = r->start;
+	}
+
+	if (!use_dma ||
+	    dma_rx_chan == SPI_NO_RESOURCE ||
+	    dma_tx_chan == SPI_NO_RESOURCE ||
+	    dma_eventq	== SPI_NO_RESOURCE) {
+		davinci_spi->bitbang.txrx_bufs = davinci_spi_bufs_pio;
+		use_dma = 0;
+	} else {
+		davinci_spi->bitbang.txrx_bufs = davinci_spi_bufs_dma;
+		davinci_spi->dma_channels = kzalloc(master->num_chipselect
+				* sizeof(struct davinci_spi_dma), GFP_KERNEL);
+		if (davinci_spi->dma_channels == NULL) {
+			ret = -ENOMEM;
+			goto free_clk;
+		}
+
+		for (i = 0; i < master->num_chipselect; i++) {
+			davinci_spi->dma_channels[i].dma_rx_channel = -1;
+			davinci_spi->dma_channels[i].dma_rx_sync_dev =
+				dma_rx_chan;
+			davinci_spi->dma_channels[i].dma_tx_channel = -1;
+			davinci_spi->dma_channels[i].dma_tx_sync_dev =
+				dma_tx_chan;
+			davinci_spi->dma_channels[i].eventq = dma_eventq;
+		}
+		dev_info(&pdev->dev, "DaVinci SPI driver in EDMA mode\n"
+				"Using RX channel = %d , TX channel = %d and "
+				"event queue = %d", dma_rx_chan, dma_tx_chan,
+				dma_eventq);
+	}
+
+	davinci_spi->get_rx = davinci_spi_rx_buf_u8;
+	davinci_spi->get_tx = davinci_spi_tx_buf_u8;
+
+	init_completion(&davinci_spi->done);
+
+	/* Reset In/OUT SPI module */
+	iowrite32(0, davinci_spi->base + SPIGCR0);
+	udelay(100);
+	iowrite32(1, davinci_spi->base + SPIGCR0);
+
+	/* Clock internal */
+	if (davinci_spi->pdata->clk_internal)
+		set_io_bits(davinci_spi->base + SPIGCR1,
+				SPIGCR1_CLKMOD_MASK);
+	else
+		clear_io_bits(davinci_spi->base + SPIGCR1,
+				SPIGCR1_CLKMOD_MASK);
+
+	/* master mode default */
+	set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_MASTER_MASK);
+
+	if (davinci_spi->pdata->intr_level)
+		iowrite32(SPI_INTLVL_1, davinci_spi->base + SPILVL);
+	else
+		iowrite32(SPI_INTLVL_0, davinci_spi->base + SPILVL);
+
+	ret = spi_bitbang_start(&davinci_spi->bitbang);
+	if (ret)
+		goto free_clk;
+
+	dev_info(&pdev->dev, "Controller at 0x%p \n", davinci_spi->base);
+
+	if (!pdata->poll_mode)
+		dev_info(&pdev->dev, "Operating in interrupt mode"
+			" using IRQ %d\n", davinci_spi->irq);
+
+	return ret;
+
+free_clk:
+	clk_disable(davinci_spi->clk);
+	clk_put(davinci_spi->clk);
+put_master:
+	spi_master_put(master);
+free_tmp_buf:
+	kfree(davinci_spi->tmp_buf);
+irq_free:
+	free_irq(davinci_spi->irq, davinci_spi);
+unmap_io:
+	iounmap(davinci_spi->base);
+release_region:
+	release_mem_region(davinci_spi->pbase, davinci_spi->region_size);
+free_master:
+	kfree(master);
+err:
+	return ret;
+}
+
+/**
+ * davinci_spi_remove - remove function for SPI Master Controller
+ * @pdev: platform_device structure which contains plateform specific data
+ *
+ * This function will do the reverse action of davinci_spi_probe function
+ * It will free the IRQ and SPI controller's memory region.
+ * It will also call spi_bitbang_stop to destroy the work queue which was
+ * created by spi_bitbang_start.
+ */
+static int __exit davinci_spi_remove(struct platform_device *pdev)
+{
+	struct davinci_spi *davinci_spi;
+	struct spi_master *master;
+
+	master = dev_get_drvdata(&pdev->dev);
+	davinci_spi = spi_master_get_devdata(master);
+
+	spi_bitbang_stop(&davinci_spi->bitbang);
+
+	clk_disable(davinci_spi->clk);
+	clk_put(davinci_spi->clk);
+	spi_master_put(master);
+	kfree(davinci_spi->tmp_buf);
+	free_irq(davinci_spi->irq, davinci_spi);
+	iounmap(davinci_spi->base);
+	release_mem_region(davinci_spi->pbase, davinci_spi->region_size);
+
+	return 0;
+}
+
+static struct platform_driver davinci_spi_driver = {
+	.driver.name = "spi_davinci",
+	.remove = __exit_p(davinci_spi_remove),
+};
+
+static int __init davinci_spi_init(void)
+{
+	return platform_driver_probe(&davinci_spi_driver, davinci_spi_probe);
+}
+module_init(davinci_spi_init);
+
+static void __exit davinci_spi_exit(void)
+{
+	platform_driver_unregister(&davinci_spi_driver);
+}
+module_exit(davinci_spi_exit);
+
+MODULE_DESCRIPTION("TI DaVinci SPI Master Controller Driver");
+MODULE_LICENSE("GPL");

drivers/spi/dw_spi.c

···
 #else
 static inline int mrst_spi_debugfs_init(struct dw_spi *dws)
 {
+	return 0;
 }
 
 static inline void mrst_spi_debugfs_remove(struct dw_spi *dws)
···
 
 static void wait_till_not_busy(struct dw_spi *dws)
 {
-	unsigned long end = jiffies + usecs_to_jiffies(1000);
+	unsigned long end = jiffies + 1 + usecs_to_jiffies(1000);
 
 	while (time_before(jiffies, end)) {
 		if (!(dw_readw(dws, sr) & SR_BUSY))
 			return;
 	}
 	dev_err(&dws->master->dev,
-		"DW SPI: Stutus keeps busy for 1000us after a read/write!\n");
+		"DW SPI: Status keeps busy for 1000us after a read/write!\n");
 }
 
 static void flush(struct dw_spi *dws)
···
 static irqreturn_t interrupt_transfer(struct dw_spi *dws)
 {
 	u16 irq_status, irq_mask = 0x3f;
+	u32 int_level = dws->fifo_len / 2;
+	u32 left;
 
 	irq_status = dw_readw(dws, isr) & irq_mask;
 	/* Error handling */
···
 		return IRQ_HANDLED;
 	}
 
-	/* INT comes from tx */
-	if (dws->tx && (irq_status & SPI_INT_TXEI)) {
-		while (dws->tx < dws->tx_end)
+	if (irq_status & SPI_INT_TXEI) {
+		spi_mask_intr(dws, SPI_INT_TXEI);
+
+		left = (dws->tx_end - dws->tx) / dws->n_bytes;
+		left = (left > int_level) ? int_level : left;
+
+		while (left--)
 			dws->write(dws);
+		dws->read(dws);
 
-		if (dws->tx == dws->tx_end) {
-			spi_mask_intr(dws, SPI_INT_TXEI);
-			transfer_complete(dws);
-		}
-	}
-
-	/* INT comes from rx */
-	if (dws->rx && (irq_status & SPI_INT_RXFI)) {
-		if (dws->read(dws))
+		/* Re-enable the IRQ if there is still data left to tx */
+		if (dws->tx_end > dws->tx)
+			spi_umask_intr(dws, SPI_INT_TXEI);
+		else
 			transfer_complete(dws);
 	}
+
 	return IRQ_HANDLED;
 }
 
···
 /* Must be called inside pump_transfers() */
 static void poll_transfer(struct dw_spi *dws)
 {
-	if (dws->tx) {
-		while (dws->write(dws))
-			dws->read(dws);
-	}
+	while (dws->write(dws))
+		dws->read(dws);
 
-	dws->read(dws);
 	transfer_complete(dws);
 }
 
···
 	u8 bits = 0;
 	u8 imask = 0;
 	u8 cs_change = 0;
+	u16 txint_level = 0;
 	u16 clk_div = 0;
 	u32 speed = 0;
 	u32 cr0 = 0;
···
 	transfer = dws->cur_transfer;
 	chip = dws->cur_chip;
 	spi = message->spi;
+
+	if (unlikely(!chip->clk_div))
+		chip->clk_div = dws->max_freq / chip->speed_hz;
 
 	if (message->state == ERROR_STATE) {
 		message->status = -EIO;
···
 
 			/* clk_div doesn't support odd number */
 			clk_div = dws->max_freq / speed;
-			clk_div = (clk_div >> 1) << 1;
+			clk_div = (clk_div + 1) & 0xfffe;
 
 			chip->speed_hz = speed;
 			chip->clk_div = clk_div;
···
 	}
 	message->state = RUNNING_STATE;
 
+	/*
+	 * Adjust transfer mode if necessary. Requires platform dependent
+	 * chipselect mechanism.
+	 */
+	if (dws->cs_control) {
+		if (dws->rx && dws->tx)
+			chip->tmode = 0x00;
+		else if (dws->rx)
+			chip->tmode = 0x02;
+		else
+			chip->tmode = 0x01;
+
+		cr0 &= ~(0x3 << SPI_MODE_OFFSET);
+		cr0 |= (chip->tmode << SPI_TMOD_OFFSET);
+	}
+
 	/* Check if current transfer is a DMA transaction */
 	dws->dma_mapped = map_dma_buffers(dws);
 
+	/*
+	 * Interrupt mode
+	 * we only need set the TXEI IRQ, as TX/RX always happen syncronizely
+	 */
 	if (!dws->dma_mapped && !chip->poll_mode) {
-		if (dws->rx)
-			imask |= SPI_INT_RXFI;
-		if (dws->tx)
-			imask |= SPI_INT_TXEI;
+		int templen = dws->len / dws->n_bytes;
+		txint_level = dws->fifo_len / 2;
+		txint_level = (templen > txint_level) ? txint_level : templen;
+
+		imask |= SPI_INT_TXEI;
 		dws->transfer_handler = interrupt_transfer;
 	}
 
···
 	 *	2. clk_div is changed
 	 *	3. control value changes
 	 */
-	if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div) {
+	if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div || imask) {
 		spi_enable_chip(dws, 0);
 
 		if (dw_readw(dws, ctrl0) != cr0)
 			dw_writew(dws, ctrl0, cr0);
 
-		/* Set the interrupt mask, for poll mode just diable all int */
-		spi_mask_intr(dws, 0xff);
-		if (!chip->poll_mode)
-			spi_umask_intr(dws, imask);
-
 		spi_set_clk(dws, clk_div ? clk_div : chip->clk_div);
 		spi_chip_sel(dws, spi->chip_select);
-		spi_enable_chip(dws, 1);
 
+		/* Set the interrupt mask, for poll mode just diable all int */
+		spi_mask_intr(dws, 0xff);
+		if (imask)
+			spi_umask_intr(dws, imask);
+		if (txint_level)
+			dw_writew(dws, txfltr, txint_level);
+
+		spi_enable_chip(dws, 1);
 		if (cs_change)
 			dws->prev_chip = chip;
 	}
···
 	}
 	chip->bits_per_word = spi->bits_per_word;
 
+	if (!spi->max_speed_hz) {
+		dev_err(&spi->dev, "No max speed HZ parameter\n");
+		return -EINVAL;
+	}
 	chip->speed_hz = spi->max_speed_hz;
-	if (chip->speed_hz)
-		chip->clk_div = 25000000 / chip->speed_hz;
-	else
-		chip->clk_div = 8;	/* default value */
 
 	chip->tmode = 0; /* Tx & Rx */
 	/* Default SPI mode is SCPOL = 0, SCPH = 0 */
···
 	kfree(chip);
 }
 
-static int __init init_queue(struct dw_spi *dws)
+static int __devinit init_queue(struct dw_spi *dws)
 {
 	INIT_LIST_HEAD(&dws->queue);
 	spin_lock_init(&dws->lock);
···
 	spi_mask_intr(dws, 0xff);
 	spi_enable_chip(dws, 1);
 	flush(dws);
+
+	/*
+	 * Try to detect the FIFO depth if not set by interface driver,
+	 * the depth could be from 2 to 256 from HW spec
+	 */
+	if (!dws->fifo_len) {
+		u32 fifo;
+		for (fifo = 2; fifo <= 257; fifo++) {
+			dw_writew(dws, txfltr, fifo);
+			if (fifo != dw_readw(dws, txfltr))
+				break;
+		}
+
+		dws->fifo_len = (fifo == 257) ? 0 : fifo;
+		dw_writew(dws, txfltr, 0);
+	}
 }
 
 int __devinit dw_spi_add_host(struct dw_spi *dws)
···
 	/* Disconnect from the SPI framework */
 	spi_unregister_master(dws->master);
 }
+EXPORT_SYMBOL(dw_spi_remove_host);
 
 int dw_spi_suspend_host(struct dw_spi *dws)
 {

drivers/spi/dw_spi_mmio.c

···
+/*
+ * dw_spi_mmio.c - Memory-mapped interface driver for DW SPI Core
+ *
+ * Copyright (c) 2010, Octasic semiconductor.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/spi/dw_spi.h>
+#include <linux/spi/spi.h>
+
+#define DRIVER_NAME "dw_spi_mmio"
+
+struct dw_spi_mmio {
+	struct dw_spi  dws;
+	struct clk     *clk;
+};
+
+static int __devinit dw_spi_mmio_probe(struct platform_device *pdev)
+{
+	struct dw_spi_mmio *dwsmmio;
+	struct dw_spi *dws;
+	struct resource *mem, *ioarea;
+	int ret;
+
+	dwsmmio = kzalloc(sizeof(struct dw_spi_mmio), GFP_KERNEL);
+	if (!dwsmmio) {
+		ret = -ENOMEM;
+		goto err_end;
+	}
+
+	dws = &dwsmmio->dws;
+
+	/* Get basic io resource and map it */
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem) {
+		dev_err(&pdev->dev, "no mem resource?\n");
+		ret = -EINVAL;
+		goto err_kfree;
+	}
+
+	ioarea = request_mem_region(mem->start, resource_size(mem),
+			pdev->name);
+	if (!ioarea) {
+		dev_err(&pdev->dev, "SPI region already claimed\n");
+		ret = -EBUSY;
+		goto err_kfree;
+	}
+
+	dws->regs = ioremap_nocache(mem->start, resource_size(mem));
+	if (!dws->regs) {
+		dev_err(&pdev->dev, "SPI region already mapped\n");
+		ret = -ENOMEM;
+		goto err_release_reg;
+	}
+
+	dws->irq = platform_get_irq(pdev, 0);
+	if (dws->irq < 0) {
+		dev_err(&pdev->dev, "no irq resource?\n");
+		ret = dws->irq; /* -ENXIO */
+		goto err_unmap;
+	}
+
+	dwsmmio->clk = clk_get(&pdev->dev, NULL);
+	if (!dwsmmio->clk) {
+		ret = -ENODEV;
+		goto err_irq;
+	}
+	clk_enable(dwsmmio->clk);
+
+	dws->parent_dev = &pdev->dev;
+	dws->bus_num = 0;
+	dws->num_cs = 4;
+	dws->max_freq = clk_get_rate(dwsmmio->clk);
+
+	ret = dw_spi_add_host(dws);
+	if (ret)
+		goto err_clk;
+
+	platform_set_drvdata(pdev, dwsmmio);
+	return 0;
+
+err_clk:
+	clk_disable(dwsmmio->clk);
+	clk_put(dwsmmio->clk);
+	dwsmmio->clk = NULL;
+err_irq:
+	free_irq(dws->irq, dws);
+err_unmap:
+	iounmap(dws->regs);
+err_release_reg:
+	release_mem_region(mem->start, resource_size(mem));
+err_kfree:
+	kfree(dwsmmio);
+err_end:
+	return ret;
+}
+
+static int __devexit dw_spi_mmio_remove(struct platform_device *pdev)
+{
+	struct dw_spi_mmio *dwsmmio = platform_get_drvdata(pdev);
+	struct resource *mem;
+
+	platform_set_drvdata(pdev, NULL);
+
+	clk_disable(dwsmmio->clk);
+	clk_put(dwsmmio->clk);
+	dwsmmio->clk = NULL;
+
+	free_irq(dwsmmio->dws.irq, &dwsmmio->dws);
+	dw_spi_remove_host(&dwsmmio->dws);
+	iounmap(dwsmmio->dws.regs);
+	kfree(dwsmmio);
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	release_mem_region(mem->start, resource_size(mem));
+	return 0;
+}
+
+static struct platform_driver dw_spi_mmio_driver = {
+	.remove		= __devexit_p(dw_spi_mmio_remove),
+	.driver		= {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init dw_spi_mmio_init(void)
+{
+	return platform_driver_probe(&dw_spi_mmio_driver, dw_spi_mmio_probe);
+}
+module_init(dw_spi_mmio_init);
+
+static void __exit dw_spi_mmio_exit(void)
+{
+	platform_driver_unregister(&dw_spi_mmio_driver);
+}
+module_exit(dw_spi_mmio_exit);
+
+MODULE_AUTHOR("Jean-Hugues Deschenes <[e-mail]>");
+MODULE_DESCRIPTION("Memory-mapped I/O interface driver for DW SPI Core");
+MODULE_LICENSE("GPL v2");

drivers/spi/dw_spi_pci.c

···
 	dws->num_cs = 4;
 	dws->max_freq = 25000000;	/* for Moorestwon */
 	dws->irq = pdev->irq;
+	dws->fifo_len = 40;		/* FIFO has 40 words buffer */
 
 	ret = dw_spi_add_host(dws);
 	if (ret)
···
 	struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
 
 	pci_set_drvdata(pdev, NULL);
+	dw_spi_remove_host(&dwpci->dws);
 	iounmap(dwpci->dws.regs);
 	pci_release_region(pdev, 0);
 	kfree(dwpci);

drivers/spi/mpc52xx_psc_spi.c

···
 	return mpc52xx_psc_spi_do_remove(&op->dev);
 }
 
-static struct of_device_id mpc52xx_psc_spi_of_match[] = {
+static const struct of_device_id mpc52xx_psc_spi_of_match[] = {
 	{ .compatible = "fsl,mpc5200-psc-spi", },
 	{ .compatible = "mpc5200-psc-spi", }, /* old */
 	{}

drivers/spi/mpc52xx_spi.c

···
 	return 0;
 }
 
-static struct of_device_id mpc52xx_spi_match[] __devinitdata = {
+static const struct of_device_id mpc52xx_spi_match[] __devinitconst = {
 	{ .compatible = "fsl,mpc5200-spi", },
 	{}
 };

drivers/spi/spi_imx.c

···
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
 	int gpio = spi_imx->chipselect[spi->chip_select];
 
-	pr_debug("%s: mode %d, %u bpw, %d hz\n", __func__,
+	dev_dbg(&spi->dev, "%s: mode %d, %u bpw, %d hz\n", __func__,
 		 spi->mode, spi->bits_per_word, spi->max_speed_hz);
 
 	if (gpio >= 0)

drivers/spi/spi_mpc8xxx.c

···
 
 	if ((mpc8xxx_spi->spibrg / hz) > 64) {
 		cs->hw_mode |= SPMODE_DIV16;
-		pm = mpc8xxx_spi->spibrg / (hz * 64);
+		pm = (mpc8xxx_spi->spibrg - 1) / (hz * 64) + 1;
 
 		WARN_ONCE(pm > 16, "%s: Requested speed is too low: %d Hz. "
 			  "Will use %d Hz instead.\n", dev_name(&spi->dev),
···
 		if (pm > 16)
 			pm = 16;
 	} else
-		pm = mpc8xxx_spi->spibrg / (hz * 4);
+		pm = (mpc8xxx_spi->spibrg - 1) / (hz * 4) + 1;
 	if (pm)
 		pm--;
 
···
 static int __devinit plat_mpc8xxx_spi_probe(struct platform_device *pdev)
 {
 	struct resource *mem;
-	unsigned int irq;
+	int irq;
 	struct spi_master *master;
 
 	if (!pdev->dev.platform_data)
···
 		return -EINVAL;
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq)
+	if (irq <= 0)
 		return -EINVAL;
 
 	master = mpc8xxx_spi_probe(&pdev->dev, mem, irq);

drivers/spi/spi_ppc4xx.c

···
 	return 0;
 }
 
-static struct of_device_id spi_ppc4xx_of_match[] = {
+static const struct of_device_id spi_ppc4xx_of_match[] = {
 	{ .compatible = "ibm,ppc4xx-spi", },
 	{},
 };

drivers/spi/spi_s3c64xx.c

···
 #include <linux/spi/spi.h>
 
 #include <mach/dma.h>
-#include <plat/spi.h>
+#include <plat/s3c64xx-spi.h>
 
 /* Registers and bit-fields */
 
···
 /**
  * struct s3c64xx_spi_driver_data - Runtime info holder for SPI driver.
  * @clk: Pointer to the spi clock.
+ * @src_clk: Pointer to the clock used to generate SPI signals.
  * @master: Pointer to the SPI Protocol master.
  * @workqueue: Work queue for the SPI xfer requests.
  * @cntrlr_info: Platform specific data for the controller this driver manages.
···
 struct s3c64xx_spi_driver_data {
 	void __iomem                    *regs;
 	struct clk                      *clk;
+	struct clk                      *src_clk;
 	struct platform_device          *pdev;
 	struct spi_master               *master;
 	struct workqueue_struct	        *workqueue;
-	struct s3c64xx_spi_cntrlr_info  *cntrlr_info;
+	struct s3c64xx_spi_info  *cntrlr_info;
 	struct spi_device               *tgl_spi;
 	struct work_struct              work;
 	struct list_head                queue;
···
 
 static void flush_fifo(struct s3c64xx_spi_driver_data *sdd)
 {
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 	void __iomem *regs = sdd->regs;
 	unsigned long loops;
 	u32 val;
···
 				struct spi_device *spi,
 				struct spi_transfer *xfer, int dma_mode)
 {
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 	void __iomem *regs = sdd->regs;
 	u32 modecfg, chcfg;
 
···
 		if (sdd->tgl_spi != spi) { /* if last mssg on diff device */
 			/* Deselect the last toggled device */
 			cs = sdd->tgl_spi->controller_data;
-			cs->set_level(spi->mode & SPI_CS_HIGH ? 0 : 1);
+			cs->set_level(cs->line,
+					spi->mode & SPI_CS_HIGH ? 0 : 1);
 		}
 		sdd->tgl_spi = NULL;
 	}
 
 	cs = spi->controller_data;
-	cs->set_level(spi->mode & SPI_CS_HIGH ? 1 : 0);
+	cs->set_level(cs->line, spi->mode & SPI_CS_HIGH ? 1 : 0);
 }
 
 static int wait_for_xfer(struct s3c64xx_spi_driver_data *sdd,
 				struct spi_transfer *xfer, int dma_mode)
 {
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 	void __iomem *regs = sdd->regs;
 	unsigned long val;
 	int ms;
···
 	if (sdd->tgl_spi == spi)
 		sdd->tgl_spi = NULL;
 
-	cs->set_level(spi->mode & SPI_CS_HIGH ? 0 : 1);
+	cs->set_level(cs->line, spi->mode & SPI_CS_HIGH ? 0 : 1);
 }
 
 static void s3c64xx_spi_config(struct s3c64xx_spi_driver_data *sdd)
 {
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
 	void __iomem *regs = sdd->regs;
 	u32 val;
 
···
 	/* Configure Clock */
 	val = readl(regs + S3C64XX_SPI_CLK_CFG);
 	val &= ~S3C64XX_SPI_PSR_MASK;
-	val |= ((clk_get_rate(sci->src_clk) / sdd->cur_speed / 2 - 1)
+	val |= ((clk_get_rate(sdd->src_clk) / sdd->cur_speed / 2 - 1)
 			& S3C64XX_SPI_PSR_MASK);
 	writel(val, regs + S3C64XX_SPI_CLK_CFG);
 
···
 static void handle_msg(struct s3c64xx_spi_driver_data *sdd,
 					struct spi_message *msg)
 {
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 	struct spi_device *spi = msg->spi;
 	struct s3c64xx_spi_csinfo *cs = spi->controller_data;
 	struct spi_transfer *xfer;
···
 		S3C64XX_SPI_DEACT(sdd);
 
 		if (status) {
-			dev_err(&spi->dev, "I/O Error: \
-				rx-%d tx-%d res:rx-%c tx-%c len-%d\n",
+			dev_err(&spi->dev, "I/O Error: "
+				"rx-%d tx-%d res:rx-%c tx-%c len-%d\n",
 				xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0,
 				(sdd->state & RXBUSY) ? 'f' : 'p',
 				(sdd->state & TXBUSY) ? 'f' : 'p',
···
 {
 	struct s3c64xx_spi_csinfo *cs = spi->controller_data;
 	struct s3c64xx_spi_driver_data *sdd;
-	struct s3c64xx_spi_cntrlr_info *sci;
+	struct s3c64xx_spi_info *sci;
 	struct spi_message *msg;
 	u32 psr, speed;
 	unsigned long flags;
···
 	}
 
 	/* Check if we can provide the requested rate */
-	speed = clk_get_rate(sci->src_clk) / 2 / (0 + 1); /* Max possible */
+	speed = clk_get_rate(sdd->src_clk) / 2 / (0 + 1); /* Max possible */
 
 	if (spi->max_speed_hz > speed)
 		spi->max_speed_hz = speed;
 
-	psr = clk_get_rate(sci->src_clk) / 2 / spi->max_speed_hz - 1;
+	psr = clk_get_rate(sdd->src_clk) / 2 / spi->max_speed_hz - 1;
 	psr &= S3C64XX_SPI_PSR_MASK;
 	if (psr == S3C64XX_SPI_PSR_MASK)
 		psr--;
 
-	speed = clk_get_rate(sci->src_clk) / 2 / (psr + 1);
+	speed = clk_get_rate(sdd->src_clk) / 2 / (psr + 1);
 	if (spi->max_speed_hz < speed) {
 		if (psr+1 < S3C64XX_SPI_PSR_MASK) {
 			psr++;
···
 		}
 	}
 
-	speed = clk_get_rate(sci->src_clk) / 2 / (psr + 1);
+	speed = clk_get_rate(sdd->src_clk) / 2 / (psr + 1);
 	if (spi->max_speed_hz >= speed)
 		spi->max_speed_hz = speed;
 	else
···
 
 static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd, int channel)
 {
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 	void __iomem *regs = sdd->regs;
 	unsigned int val;
 
···
 {
 	struct resource	*mem_res, *dmatx_res, *dmarx_res;
 	struct s3c64xx_spi_driver_data *sdd;
-	struct s3c64xx_spi_cntrlr_info *sci;
+	struct s3c64xx_spi_info *sci;
 	struct spi_master *master;
 	int ret;
 
···
 		goto err4;
 	}
 
-	if (sci->src_clk_nr == S3C64XX_SPI_SRCCLK_PCLK)
-		sci->src_clk = sdd->clk;
-	else
-		sci->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
-	if (IS_ERR(sci->src_clk)) {
+	sdd->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
+	if (IS_ERR(sdd->src_clk)) {
 		dev_err(&pdev->dev,
 			"Unable to acquire clock '%s'\n", sci->src_clk_name);
-		ret = PTR_ERR(sci->src_clk);
+		ret = PTR_ERR(sdd->src_clk);
 		goto err5;
 	}
 
-	if (sci->src_clk != sdd->clk && clk_enable(sci->src_clk)) {
+	if (clk_enable(sdd->src_clk)) {
 		dev_err(&pdev->dev, "Couldn't enable clock '%s'\n",
 							sci->src_clk_name);
 		ret = -EBUSY;
···
 		goto err8;
 	}
 
-	dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d \
-					with %d Slaves attached\n",
+	dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d "
+					"with %d Slaves attached\n",
 					pdev->id, master->num_chipselect);
-	dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\
-					\tDMA=[Rx-%d, Tx-%d]\n",
+	dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\tDMA=[Rx-%d, Tx-%d]\n",
 					mem_res->end, mem_res->start,
 					sdd->rx_dmach, sdd->tx_dmach);
 
···
 err8:
 	destroy_workqueue(sdd->workqueue);
 err7:
-	if (sci->src_clk != sdd->clk)
-		clk_disable(sci->src_clk);
+	clk_disable(sdd->src_clk);
 err6:
-	if (sci->src_clk != sdd->clk)
-		clk_put(sci->src_clk);
+	clk_put(sdd->src_clk);
 err5:
 	clk_disable(sdd->clk);
 err4:
···
 {
 	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
 	struct resource	*mem_res;
 	unsigned long flags;
 
···
 
 	destroy_workqueue(sdd->workqueue);
 
-	if (sci->src_clk != sdd->clk)
-		clk_disable(sci->src_clk);
-
-	if (sci->src_clk != sdd->clk)
-		clk_put(sci->src_clk);
+	clk_disable(sdd->src_clk);
+	clk_put(sdd->src_clk);
 
 	clk_disable(sdd->clk);
 	clk_put(sdd->clk);
···
 	iounmap((void *) sdd->regs);
 
 	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(mem_res->start, resource_size(mem_res));
+	if (mem_res != NULL)
+		release_mem_region(mem_res->start, resource_size(mem_res));
 
 	platform_set_drvdata(pdev, NULL);
 	spi_master_put(master);
···
 {
 	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
-	struct s3c64xx_spi_csinfo *cs;
 	unsigned long flags;
 
 	spin_lock_irqsave(&sdd->lock, flags);
···
 		msleep(10);
 
 	/* Disable the clock */
-	if (sci->src_clk != sdd->clk)
-		clk_disable(sci->src_clk);
-
+	clk_disable(sdd->src_clk);
 	clk_disable(sdd->clk);
 
 	sdd->cur_speed = 0; /* Output Clock is stopped */
···
 {
 	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
-	struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 	unsigned long flags;
 
 	sci->cfg_gpio(pdev);
 
 	/* Enable the clock */
-	if (sci->src_clk != sdd->clk)
-		clk_enable(sci->src_clk);
-
+	clk_enable(sdd->src_clk);
 	clk_enable(sdd->clk);
 
 	s3c64xx_spi_hwinit(sdd, pdev->id);

drivers/spi/spi_sh_msiof.c

···
 #include <linux/bitmap.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/err.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
 #include <linux/spi/sh_msiof.h>
 
-#include <asm/spi.h>
 #include <asm/unaligned.h>
 
 struct sh_msiof_spi_priv {

drivers/spi/spi_stmp.c

···
 			break;						\
 		}							\
 		cpu_relax();						\
-	} while (time_before(end_jiffies, jiffies));			\
+	} while (time_before(jiffies, end_jiffies));			\
 	succeeded;							\
 	})
 

drivers/spi/xilinx_spi.c

···
 	void (*rx_fn) (struct xilinx_spi *);
 };
 
+static void xspi_write32(u32 val, void __iomem *addr)
+{
+	iowrite32(val, addr);
+}
+
+static unsigned int xspi_read32(void __iomem *addr)
+{
+	return ioread32(addr);
+}
+
+static void xspi_write32_be(u32 val, void __iomem *addr)
+{
+	iowrite32be(val, addr);
+}
+
+static unsigned int xspi_read32_be(void __iomem *addr)
+{
+	return ioread32be(addr);
+}
+
 static void xspi_tx8(struct xilinx_spi *xspi)
 {
 	xspi->write_fn(*xspi->tx_ptr, xspi->regs + XSPI_TXD_OFFSET);
···
 	xspi->mem = *mem;
 	xspi->irq = irq;
 	if (pdata->little_endian) {
-		xspi->read_fn = ioread32;
-		xspi->write_fn = iowrite32;
+		xspi->read_fn = xspi_read32;
+		xspi->write_fn = xspi_write32;
 	} else {
-		xspi->read_fn = ioread32be;
-		xspi->write_fn = iowrite32be;
+		xspi->read_fn = xspi_read32_be;
+		xspi->write_fn = xspi_write32_be;
 	}
 	xspi->bits_per_word = pdata->bits_per_word;
 	if (xspi->bits_per_word == 8) {

drivers/spi/xilinx_spi_of.c

···
 	return xilinx_spi_remove(op);
 }
 
-static struct of_device_id xilinx_spi_of_match[] = {
+static const struct of_device_id xilinx_spi_of_match[] = {
 	{ .compatible = "xlnx,xps-spi-2.00.a", },
 	{ .compatible = "xlnx,xps-spi-2.00.b", },
 	{}

drivers/ssb/main.c

···
 #endif
 			break;
 		case SSB_BUSTYPE_SDIO:
-#ifdef CONFIG_SSB_SDIO
-			sdev->irq = bus->host_sdio->dev.irq;
+#ifdef CONFIG_SSB_SDIOHOST
 			dev->parent = &bus->host_sdio->dev;
 #endif
 			break;

drivers/usb/core/devio.c

···
 	void __user *addr = as->userurb;
 	unsigned int i;
 
-	if (as->userbuffer)
+	if (as->userbuffer && urb->actual_length)
 		if (copy_to_user(as->userbuffer, urb->transfer_buffer,
-				 urb->transfer_buffer_length))
+				 urb->actual_length))
 			goto err_out;
 	if (put_user(as->status, &userurb->status))
 		goto err_out;
···
 		}
 	}
 
-	free_async(as);
-
 	if (put_user(addr, (void __user * __user *)arg))
 		return -EFAULT;
 	return 0;
 
 err_out:
-	free_async(as);
 	return -EFAULT;
 }
 
···
 static int proc_reapurb(struct dev_state *ps, void __user *arg)
 {
 	struct async *as = reap_as(ps);
-	if (as)
-		return processcompl(as, (void __user * __user *)arg);
+	if (as) {
+		int retval = processcompl(as, (void __user * __user *)arg);
+		free_async(as);
+		return retval;
+	}
 	if (signal_pending(current))
 		return -EINTR;
 	return -EIO;
···
 
 static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
 {
+	int retval;
 	struct async *as;
 
-	if (!(as = async_getcompleted(ps)))
-		return -EAGAIN;
-	return processcompl(as, (void __user * __user *)arg);
+	as = async_getcompleted(ps);
+	retval = -EAGAIN;
+	if (as) {
+		retval = processcompl(as, (void __user * __user *)arg);
+		free_async(as);
+	}
+	return retval;
 }
 
 #ifdef CONFIG_COMPAT
···
 	void __user *addr = as->userurb;
 	unsigned int i;
 
-	if (as->userbuffer)
+	if (as->userbuffer && urb->actual_length)
 		if (copy_to_user(as->userbuffer, urb->transfer_buffer,
-				 urb->transfer_buffer_length))
+				 urb->actual_length))
 			return -EFAULT;
 	if (put_user(as->status, &userurb->status))
 		return -EFAULT;
···
 		}
 	}
 
-	free_async(as);
 	if (put_user(ptr_to_compat(addr), (u32 __user *)arg))
 		return -EFAULT;
 	return 0;
···
 static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
 {
 	struct async *as = reap_as(ps);
-	if (as)
-		return processcompl_compat(as, (void __user * __user *)arg);
+	if (as) {
+		int retval = processcompl_compat(as, (void __user * __user *)arg);
+		free_async(as);
+		return retval;
+	}
 	if (signal_pending(current))
 		return -EINTR;
 	return -EIO;
···
 
 static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg)
 {
+	int retval;
 	struct async *as;
 
-	if (!(as = async_getcompleted(ps)))
-		return -EAGAIN;
-	return processcompl_compat(as, (void __user * __user *)arg);
+	retval = -EAGAIN;
+	as = async_getcompleted(ps);
+	if (as) {
+		retval = processcompl_compat(as, (void __user * __user *)arg);
+		free_async(as);
+	}
+	return retval;
 }
 
 

drivers/usb/gadget/f_eem.c

···
 	 * b15:		bmType (0 == data)
 	 */
 	len = skb->len;
-	put_unaligned_le16((len & 0x3FFF) | BIT(14), skb_push(skb, 2));
+	put_unaligned_le16(len & 0x3FFF, skb_push(skb, 2));
 
 	/* add a zero-length EEM packet, if needed */
 	if (padlen)
···
 			}
 
 			/* validate CRC */
-			crc = get_unaligned_le32(skb->data + len - ETH_FCS_LEN);
 			if (header & BIT(14)) {
 				crc = get_unaligned_le32(skb->data + len
 							- ETH_FCS_LEN);

drivers/usb/gadget/multi.c

···
 #if defined USB_ETH_RNDIS
 #  undef USB_ETH_RNDIS
 #endif
-#ifdef CONFIG_USB_ETH_RNDIS
+#ifdef CONFIG_USB_G_MULTI_RNDIS
 #  define USB_ETH_RNDIS y
 #endif
 

drivers/usb/gadget/r8a66597-udc.c

···
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/err.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>

drivers/usb/gadget/s3c-hsotg.c

···
 	hsotg->gadget.dev.driver = NULL;
 	return ret;
 }
+EXPORT_SYMBOL(usb_gadget_register_driver);
 
 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 {

drivers/usb/host/ehci-hub.c

···
 			if (hostpc_reg) {
 				u32	t3;
 
+				spin_unlock_irq(&ehci->lock);
 				msleep(5);/* 5ms for HCD enter low pwr mode */
+				spin_lock_irq(&ehci->lock);
 				t3 = ehci_readl(ehci, hostpc_reg);
 				ehci_writel(ehci, t3 | HOSTPC_PHCD, hostpc_reg);
 				t3 = ehci_readl(ehci, hostpc_reg);
···
 			if ((temp & PORT_PE) == 0
 					|| (temp & PORT_RESET) != 0)
 				goto error;
-			ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
+
 			/* After above check the port must be connected.
 			 * Set appropriate bit thus could put phy into low power
 			 * mode if we have hostpc feature
 			 */
+			temp &= ~PORT_WKCONN_E;
+			temp |= PORT_WKDISC_E | PORT_WKOC_E;
+			ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
 			if (hostpc_reg) {
-				temp &= ~PORT_WKCONN_E;
-				temp |= (PORT_WKDISC_E | PORT_WKOC_E);
-				ehci_writel(ehci, temp | PORT_SUSPEND,
-							status_reg);
+				spin_unlock_irqrestore(&ehci->lock, flags);
 				msleep(5);/* 5ms for HCD enter low pwr mode */
+				spin_lock_irqsave(&ehci->lock, flags);
 				temp1 = ehci_readl(ehci, hostpc_reg);
 				ehci_writel(ehci, temp1 | HOSTPC_PHCD,
 					hostpc_reg);

drivers/usb/host/fhci-tds.c

···
 		if (ep->td_base)
 			cpm_muram_free(cpm_muram_offset(ep->td_base));
 
-		if (ep->conf_frame_Q) {
+		if (kfifo_initialized(&ep->conf_frame_Q)) {
 			size = cq_howmany(&ep->conf_frame_Q);
 			for (; size; size--) {
 				struct packet *pkt = cq_get(&ep->conf_frame_Q);
···
 			cq_delete(&ep->conf_frame_Q);
 		}
 
-		if (ep->empty_frame_Q) {
+		if (kfifo_initialized(&ep->empty_frame_Q)) {
 			size = cq_howmany(&ep->empty_frame_Q);
 			for (; size; size--) {
 				struct packet *pkt = cq_get(&ep->empty_frame_Q);
···
 			cq_delete(&ep->empty_frame_Q);
 		}
 
-		if (ep->dummy_packets_Q) {
+		if (kfifo_initialized(&ep->dummy_packets_Q)) {
 			size = cq_howmany(&ep->dummy_packets_Q);
 			for (; size; size--) {
 				u8 *buff = cq_get(&ep->dummy_packets_Q);

drivers/usb/misc/sisusbvga/sisusb.c

···
 	{ USB_DEVICE(0x0711, 0x0902) },
 	{ USB_DEVICE(0x0711, 0x0903) },
 	{ USB_DEVICE(0x0711, 0x0918) },
+	{ USB_DEVICE(0x0711, 0x0920) },
 	{ USB_DEVICE(0x182d, 0x021c) },
 	{ USB_DEVICE(0x182d, 0x0269) },
 	{ }

drivers/usb/otg/Kconfig

···
 config USB_ULPI
 	bool "Generic ULPI Transceiver Driver"
 	depends on ARM
+	select USB_OTG_UTILS
 	help
 	  Enable this to support ULPI connected USB OTG transceivers which
 	  are likely found on embedded boards.

drivers/usb/serial/ftdi_sio.c

···
  * Version Information
  */
 #define DRIVER_VERSION "v1.5.0"
-#define DRIVER_AUTHOR "Greg Kroah-Hartman <[e-mail]>, Bill Ryder <[e-mail]>, Kuba Ober <[e-mail]>"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <[e-mail]>, Bill Ryder <[e-mail]>, Kuba Ober <[e-mail]>, Andreas Mohr"
 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
 
 static int debug;
···
 
 
 
+/*
+ * Device ID not listed? Test via module params product/vendor or
+ * /sys/bus/usb/ftdi_sio/new_id, then send patch/report!
+ */
 static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
···
 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
 	/*
-	 * Due to many user requests for multiple ELV devices we enable
-	 * them by default.
+	 * ELV devices:
 	 */
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
···
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
 	{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
 	{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
···
 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
+	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
 	{ USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },

drivers/usb/serial/ftdi_sio_ids.h

···
 /* www.candapter.com Ewert Energy Systems CANdapter device */
 #define FTDI_CANDAPTER_PID 0x9F80 /* Product Id */
 
+#define FTDI_NXTCAM_PID		0xABB8 /* NXTCam for Mindstorms NXT */
+
 /* OOCDlink by Joern Kaipf <[e-mail]>
  * (http://www.joernonline.de/dw/doku.php?id=start&idx=projects:oocdlink) */
 #define FTDI_OOCDLINK_PID	0xbaf8	/* Amontec JTAGkey */
···
 /*
  * ELV USB devices submitted by Christian Abt of ELV (www.elv.de).
  * All of these devices use FTDI's vendor ID (0x0403).
+ * Further IDs taken from ELV Windows .inf file.
  *
  * The previously included PID for the UO 100 module was incorrect.
  * In fact, that PID was for ELV's UR 100 USB-RS232 converter (0xFB58).
  *
  * Armin Laeuger originally sent the PID for the UM 100 module.
  */
+#define FTDI_ELV_USR_PID	0xE000	/* ELV Universal-Sound-Recorder */
+#define FTDI_ELV_MSM1_PID	0xE001	/* ELV Mini-Sound-Modul */
+#define FTDI_ELV_KL100_PID	0xE002	/* ELV Kfz-Leistungsmesser KL 100 */
+#define FTDI_ELV_WS550_PID	0xE004	/* WS 550 */
+#define FTDI_ELV_EC3000_PID	0xE006	/* ENERGY CONTROL 3000 USB */
+#define FTDI_ELV_WS888_PID	0xE008	/* WS 888 */
+#define FTDI_ELV_TWS550_PID	0xE009	/* Technoline WS 550 */
+#define FTDI_ELV_FEM_PID	0xE00A	/* Funk Energie Monitor */
 #define FTDI_ELV_FHZ1300PC_PID	0xE0E8	/* FHZ 1300 PC */
 #define FTDI_ELV_WS500_PID	0xE0E9	/* PC-Wetterstation (WS 500) */
 #define FTDI_ELV_HS485_PID	0xE0EA	/* USB to RS-485 adapter */
+#define FTDI_ELV_UMS100_PID	0xE0EB	/* ELV USB Master-Slave Schaltsteckdose UMS 100 */
+#define FTDI_ELV_TFD128_PID	0xE0EC	/* ELV Temperatur-Feuchte-Datenlogger TFD 128 */
+#define FTDI_ELV_FM3RX_PID	0xE0ED	/* ELV Messwertuebertragung FM3 RX */
+#define FTDI_ELV_WS777_PID	0xE0EE	/* Conrad WS 777 */
 #define FTDI_ELV_EM1010PC_PID	0xE0EF	/* Engery monitor EM 1010 PC */
 #define FTDI_ELV_CSI8_PID	0xE0F0	/* Computer-Schalt-Interface (CSI 8) */
 #define FTDI_ELV_EM1000DL_PID	0xE0F1	/* PC-Datenlogger fuer Energiemonitor (EM 1000 DL) */
 #define FTDI_ELV_PCK100_PID	0xE0F2	/* PC-Kabeltester (PCK 100) */
 #define FTDI_ELV_RFP500_PID	0xE0F3	/* HF-Leistungsmesser (RFP 500) */
 #define FTDI_ELV_FS20SIG_PID	0xE0F4	/* Signalgeber (FS 20 SIG) */
+#define FTDI_ELV_UTP8_PID	0xE0F5	/* ELV UTP 8 */
 #define FTDI_ELV_WS300PC_PID	0xE0F6	/* PC-Wetterstation (WS 300 PC) */
+#define FTDI_ELV_WS444PC_PID	0xE0F7	/* Conrad WS 444 PC */
 #define FTDI_PHI_FISCO_PID      0xE40B  /* PHI Fisco USB to Serial cable */
 #define FTDI_ELV_UAD8_PID	0xF068	/* USB-AD-Wandler (UAD 8) */
 #define FTDI_ELV_UDA7_PID	0xF069	/* USB-DA-Wandler (UDA 7) */
···
 #define PAPOUCH_VID			0x5050	/* Vendor ID */
 #define PAPOUCH_TMU_PID			0x0400	/* TMU USB Thermometer */
 #define PAPOUCH_QUIDO4x4_PID		0x0900	/* Quido 4/4 Module */
+#define PAPOUCH_AD4USB_PID		0x8003	/* AD4USB Measurement Module */
 
 /*
  * Marvell SheevaPlug

drivers/usb/serial/sierra.c

···
 	{ USB_DEVICE(0x1199, 0x68A3), 	/* Sierra Wireless Direct IP modems */
 	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
 	},
+       { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */
 
 	{ }
 };

drivers/usb/storage/unusual_devs.h

···
 UNUSUAL_DEV(  0x07af, 0x0004, 0x0100, 0x0133,
 		"Microtech",
 		"USB-SCSI-DB25",
-		US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init,
+		US_SC_DEVICE, US_PR_DEVICE, usb_stor_euscsi_init,
 		US_FL_SCM_MULT_TARG ), 
 
 UNUSUAL_DEV(  0x07af, 0x0005, 0x0100, 0x0100,

drivers/video/aty/aty128fb.c

···
 			 * PowerMac2,2 summer 2000 iMacs
 			 * PowerMac4,1 january 2001 iMacs "flower power"
 			 */
-			if (machine_is_compatible("PowerMac2,1") ||
-			    machine_is_compatible("PowerMac2,2") ||
-			    machine_is_compatible("PowerMac4,1"))
+			if (of_machine_is_compatible("PowerMac2,1") ||
+			    of_machine_is_compatible("PowerMac2,2") ||
+			    of_machine_is_compatible("PowerMac4,1"))
 				default_vmode = VMODE_1024_768_75;
 
 			/* iBook SE */
-			if (machine_is_compatible("PowerBook2,2"))
+			if (of_machine_is_compatible("PowerBook2,2"))
 				default_vmode = VMODE_800_600_60;
 
 			/* PowerBook Firewire (Pismo), iBook Dual USB */
-			if (machine_is_compatible("PowerBook3,1") ||
-			    machine_is_compatible("PowerBook4,1"))
+			if (of_machine_is_compatible("PowerBook3,1") ||
+			    of_machine_is_compatible("PowerBook4,1"))
 				default_vmode = VMODE_1024_768_60;
 
 			/* PowerBook Titanium */
-			if (machine_is_compatible("PowerBook3,2"))
+			if (of_machine_is_compatible("PowerBook3,2"))
 				default_vmode = VMODE_1152_768_60;
 	
 			if (default_cmode > 16) 

drivers/video/aty/atyfb_base.c

···
 	 * The Apple iBook1 uses non-standard memory frequencies.
 	 * We detect it and set the frequency manually.
 	 */
-	if (machine_is_compatible("PowerBook2,1")) {
+	if (of_machine_is_compatible("PowerBook2,1")) {
 		par->pll_limits.mclk = 70;
 		par->pll_limits.xclk = 53;
 	}
···
 		      FBINFO_HWACCEL_YPAN;
 
 #ifdef CONFIG_PMAC_BACKLIGHT
-	if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
+	if (M64_HAS(G3_PB_1_1) && of_machine_is_compatible("PowerBook1,1")) {
 		/*
 		 * these bits let the 101 powerbook
 		 * wake up from sleep -- paulus
···
 				if (M64_HAS(G3_PB_1024x768))
 					/* G3 PowerBook with 1024x768 LCD */
 					default_vmode = VMODE_1024_768_60;
-				else if (machine_is_compatible("iMac"))
+				else if (of_machine_is_compatible("iMac"))
 					default_vmode = VMODE_1024_768_75;
-				else if (machine_is_compatible("PowerBook2,1"))
+				else if (of_machine_is_compatible("PowerBook2,1"))
 					/* iBook with 800x600 LCD */
 					default_vmode = VMODE_800_600_60;
 				else
···
 	}
 
 	dp = pci_device_to_OF_node(pdev);
-	if (node == dp->node) {
+	if (node == dp->phandle) {
 		struct fb_var_screeninfo *var = &default_var;
 		unsigned int N, P, Q, M, T, R;
 		u32 v_total, h_total;

drivers/video/aty/radeon_backlight.c

···
 
 #ifdef CONFIG_PMAC_BACKLIGHT
 	pdata->negative = pdata->negative ||
-		machine_is_compatible("PowerBook4,3") ||
-		machine_is_compatible("PowerBook6,3") ||
-		machine_is_compatible("PowerBook6,5");
+		of_machine_is_compatible("PowerBook4,3") ||
+		of_machine_is_compatible("PowerBook6,3") ||
+		of_machine_is_compatible("PowerBook6,5");
 #endif
 
 	rinfo->info->bl_dev = bd;

drivers/video/efifb.c

···
 	return 0;
 }
 
+static void efifb_destroy(struct fb_info *info)
+{
+	if (info->screen_base)
+		iounmap(info->screen_base);
+	release_mem_region(info->aperture_base, info->aperture_size);
+	framebuffer_release(info);
+}
+
 static struct fb_ops efifb_ops = {
 	.owner		= THIS_MODULE,
+	.fb_destroy	= efifb_destroy,
 	.fb_setcolreg	= efifb_setcolreg,
 	.fb_fillrect	= cfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
···
 	info->par = NULL;
 
 	info->aperture_base = efifb_fix.smem_start;
-	info->aperture_size = size_total;
+	info->aperture_size = size_remap;
 
 	info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
 	if (!info->screen_base) {

drivers/virtio/virtio_balloon.c

···
 struct virtio_balloon
 {
 	struct virtio_device *vdev;
-	struct virtqueue *inflate_vq, *deflate_vq;
+	struct virtqueue *inflate_vq, *deflate_vq, *stats_vq;
 
 	/* Where the ballooning thread waits for config to change. */
 	wait_queue_head_t config_change;
···
 	/* The array of pfns we tell the Host about. */
 	unsigned int num_pfns;
 	u32 pfns[256];
+
+	/* Memory statistics */
+	int need_stats_update;
+	struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
 };
 
 static struct virtio_device_id id_table[] = {
···
 	}
 }
 
+static inline void update_stat(struct virtio_balloon *vb, int idx,
+			       u16 tag, u64 val)
+{
+	BUG_ON(idx >= VIRTIO_BALLOON_S_NR);
+	vb->stats[idx].tag = tag;
+	vb->stats[idx].val = val;
+}
+
+#define pages_to_bytes(x) ((u64)(x) << PAGE_SHIFT)
+
+static void update_balloon_stats(struct virtio_balloon *vb)
+{
+	unsigned long events[NR_VM_EVENT_ITEMS];
+	struct sysinfo i;
+	int idx = 0;
+
+	all_vm_events(events);
+	si_meminfo(&i);
+
+	update_stat(vb, idx++, VIRTIO_BALLOON_S_SWAP_IN,
+				pages_to_bytes(events[PSWPIN]));
+	update_stat(vb, idx++, VIRTIO_BALLOON_S_SWAP_OUT,
+				pages_to_bytes(events[PSWPOUT]));
+	update_stat(vb, idx++, VIRTIO_BALLOON_S_MAJFLT, events[PGMAJFAULT]);
+	update_stat(vb, idx++, VIRTIO_BALLOON_S_MINFLT, events[PGFAULT]);
+	update_stat(vb, idx++, VIRTIO_BALLOON_S_MEMFREE,
+				pages_to_bytes(i.freeram));
+	update_stat(vb, idx++, VIRTIO_BALLOON_S_MEMTOT,
+				pages_to_bytes(i.totalram));
+}
+
+/*
+ * While most virtqueues communicate guest-initiated requests to the hypervisor,
+ * the stats queue operates in reverse.  The driver initializes the virtqueue
+ * with a single buffer.  From that point forward, all conversations consist of
+ * a hypervisor request (a call to this function) which directs us to refill
+ * the virtqueue with a fresh stats buffer.  Since stats collection can sleep,
+ * we notify our kthread which does the actual work via stats_handle_request().
+ */
+static void stats_request(struct virtqueue *vq)
+{
+	struct virtio_balloon *vb;
+	unsigned int len;
+
+	vb = vq->vq_ops->get_buf(vq, &len);
+	if (!vb)
+		return;
+	vb->need_stats_update = 1;
+	wake_up(&vb->config_change);
+}
+
+static void stats_handle_request(struct virtio_balloon *vb)
+{
+	struct virtqueue *vq;
+	struct scatterlist sg;
+
+	vb->need_stats_update = 0;
+	update_balloon_stats(vb);
+
+	vq = vb->stats_vq;
+	sg_init_one(&sg, vb->stats, sizeof(vb->stats));
+	if (vq->vq_ops->add_buf(vq, &sg, 1, 0, vb) < 0)
+		BUG();
+	vq->vq_ops->kick(vq);
+}
+
 static void virtballoon_changed(struct virtio_device *vdev)
 {
 	struct virtio_balloon *vb = vdev->priv;
···
 		try_to_freeze();
 		wait_event_interruptible(vb->config_change,
 					 (diff = towards_target(vb)) != 0
+					 || vb->need_stats_update
 					 || kthread_should_stop()
 					 || freezing(current));
+		if (vb->need_stats_update)
+			stats_handle_request(vb);
 		if (diff > 0)
 			fill_balloon(vb, diff);
 		else if (diff < 0)
···
 static int virtballoon_probe(struct virtio_device *vdev)
 {
 	struct virtio_balloon *vb;
-	struct virtqueue *vqs[2];
-	vq_callback_t *callbacks[] = { balloon_ack, balloon_ack };
-	const char *names[] = { "inflate", "deflate" };
-	int err;
+	struct virtqueue *vqs[3];
+	vq_callback_t *callbacks[] = { balloon_ack, balloon_ack, stats_request };
+	const char *names[] = { "inflate", "deflate", "stats" };
+	int err, nvqs;
 
 	vdev->priv = vb = kmalloc(sizeof(*vb), GFP_KERNEL);
 	if (!vb) {
···
 	vb->num_pages = 0;
 	init_waitqueue_head(&vb->config_change);
 	vb->vdev = vdev;
+	vb->need_stats_update = 0;
 
-	/* We expect two virtqueues. */
-	err = vdev->config->find_vqs(vdev, 2, vqs, callbacks, names);
+	/* We expect two virtqueues: inflate and deflate,
+	 * and optionally stat. */
+	nvqs = virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ) ? 3 : 2;
+	err = vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names);
 	if (err)
 		goto out_free_vb;
 
 	vb->inflate_vq = vqs[0];
 	vb->deflate_vq = vqs[1];
+	if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ)) {
+		struct scatterlist sg;
+		vb->stats_vq = vqs[2];
+
+		/*
+		 * Prime this virtqueue with one buffer so the hypervisor can
+		 * use it to signal us later.
+		 */
+		sg_init_one(&sg, vb->stats, sizeof vb->stats);
+		if (vb->stats_vq->vq_ops->add_buf(vb->stats_vq,
+						  &sg, 1, 0, vb) < 0)
+			BUG();
+		vb->stats_vq->vq_ops->kick(vb->stats_vq);
+	}
 
 	vb->thread = kthread_run(balloon, vb, "vballoon");
 	if (IS_ERR(vb->thread)) {
···
 	kfree(vb);
 }
 
-static unsigned int features[] = { VIRTIO_BALLOON_F_MUST_TELL_HOST };
+static unsigned int features[] = {
+	VIRTIO_BALLOON_F_MUST_TELL_HOST,
+	VIRTIO_BALLOON_F_STATS_VQ,
+};
 
 static struct virtio_driver virtio_balloon_driver = {
 	.feature_table = features,

drivers/virtio/virtio_pci.c

···
 	.name		= "virtio-pci",
 	.id_table	= virtio_pci_id_table,
 	.probe		= virtio_pci_probe,
-	.remove		= virtio_pci_remove,
+	.remove		= __devexit_p(virtio_pci_remove),
 #ifdef CONFIG_PM
 	.suspend	= virtio_pci_suspend,
 	.resume		= virtio_pci_resume,

drivers/virtio/virtio_ring.c

···
 #include <linux/virtio_config.h>
 #include <linux/device.h>
 
+/* virtio guest is communicating with a virtual "device" that actually runs on
+ * a host processor.  Memory barriers are used to control SMP effects. */
+#ifdef CONFIG_SMP
+/* Where possible, use SMP barriers which are more lightweight than mandatory
+ * barriers, because mandatory barriers control MMIO effects on accesses
+ * through relaxed memory I/O windows (which virtio does not use). */
+#define virtio_mb() smp_mb()
+#define virtio_rmb() smp_rmb()
+#define virtio_wmb() smp_wmb()
+#else
+/* We must force memory ordering even if guest is UP since host could be
+ * running on another CPU, but SMP barriers are defined to barrier() in that
+ * configuration. So fall back to mandatory barriers instead. */
+#define virtio_mb() mb()
+#define virtio_rmb() rmb()
+#define virtio_wmb() wmb()
+#endif
+
 #ifdef DEBUG
 /* For development, we want to crash whenever the ring is screwed. */
 #define BAD_RING(_vq, fmt, args...)				\
···
 			panic("%s:in_use = %i\n",		\
 			      (_vq)->vq.name, (_vq)->in_use);	\
 		(_vq)->in_use = __LINE__;			\
-		mb();						\
 	} while (0)
 #define END_USE(_vq) \
-	do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0)
+	do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; } while(0)
 #else
 #define BAD_RING(_vq, fmt, args...)				\
 	do {							\
···
 	START_USE(vq);
 	/* Descriptors and available array need to be set before we expose the
 	 * new available array entries. */
-	wmb();
+	virtio_wmb();
 
 	vq->vring.avail->idx += vq->num_added;
 	vq->num_added = 0;
 
 	/* Need to update avail index before checking if we should notify */
-	mb();
+	virtio_mb();
 
 	if (!(vq->vring.used->flags & VRING_USED_F_NO_NOTIFY))
 		/* Prod other side to tell it about changes. */
···
 	}
 
 	/* Only get used array entries after they have been exposed by host. */
-	rmb();
+	virtio_rmb();
 
 	i = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].id;
 	*len = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].len;
···
 	/* We optimistically turn back on interrupts, then check if there was
 	 * more to do. */
 	vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT;
-	mb();
+	virtio_mb();
 	if (unlikely(more_used(vq))) {
 		END_USE(vq);
 		return false;
···
 
 	END_USE(vq);
 	return true;
+}
+
+static void *vring_detach_unused_buf(struct virtqueue *_vq)
+{
+	struct vring_virtqueue *vq = to_vvq(_vq);
+	unsigned int i;
+	void *buf;
+
+	START_USE(vq);
+
+	for (i = 0; i < vq->vring.num; i++) {
+		if (!vq->data[i])
+			continue;
+		/* detach_buf clears data, so grab it now. */
+		buf = vq->data[i];
+		detach_buf(vq, i);
+		END_USE(vq);
+		return buf;
+	}
+	/* That should have freed everything. */
+	BUG_ON(vq->num_free != vq->vring.num);
+
+	END_USE(vq);
+	return NULL;
 }
 
 irqreturn_t vring_interrupt(int irq, void *_vq)
···
 	.kick = vring_kick,
 	.disable_cb = vring_disable_cb,
 	.enable_cb = vring_enable_cb,
+	.detach_unused_buf = vring_detach_unused_buf,
 };
 
 struct virtqueue *vring_new_virtqueue(unsigned int num,
···
 	/* Put everything in free lists. */
 	vq->num_free = num;
 	vq->free_head = 0;
-	for (i = 0; i < num-1; i++)
+	for (i = 0; i < num-1; i++) {
 		vq->vring.desc[i].next = i+1;
+		vq->data[i] = NULL;
+	}
+	vq->data[i] = NULL;
 
 	return &vq->vq;
 }

drivers/watchdog/bfin_wdt.c

···
 /*
  * Blackfin On-Chip Watchdog Driver
- *  Supports BF53[123]/BF53[467]/BF54[2489]/BF561
  *
  * Originally based on softdog.c
- * Copyright 2006-2007 Analog Devices Inc.
+ * Copyright 2006-2010 Analog Devices Inc.
  * Copyright 2006-2007 Michele d'Amico
  * Copyright 1996 Alan Cox <[e-mail]>
  *
···
  */
 static int bfin_wdt_set_timeout(unsigned long t)
 {
-	u32 cnt;
+	u32 cnt, max_t, sclk;
 	unsigned long flags;
 
-	stampit();
+	sclk = get_sclk();
+	max_t = -1 / sclk;
+	cnt = t * sclk;
+	stamp("maxtimeout=%us newtimeout=%lus (cnt=%#x)", max_t, t, cnt);
 
-	cnt = t * get_sclk();
-	if (cnt < get_sclk()) {
+	if (t > max_t) {
 		printk(KERN_WARNING PFX "timeout value is too large\n");
 		return -EINVAL;
 	}

fs/cachefiles/namei.c

···
 	dir = dget_parent(object->dentry);
 
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
-	ret = cachefiles_bury_object(cache, dir, object->dentry);
+
+	/* we need to check that our parent is _still_ our parent - it may have
+	 * been renamed */
+	if (dir == object->dentry->d_parent) {
+		ret = cachefiles_bury_object(cache, dir, object->dentry);
+	} else {
+		/* it got moved, presumably by cachefilesd culling it, so it's
+		 * no longer in the key path and we can ignore it */
+		mutex_unlock(&dir->d_inode->i_mutex);
+		ret = 0;
+	}
 
 	dput(dir);
 	_leave(" = %d", ret);

fs/exec.c

···
 	 * will align it up.
 	 */
 	rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK;
-	rlim_stack = min(rlim_stack, stack_size);
 #ifdef CONFIG_STACK_GROWSUP
 	if (stack_size + stack_expand > rlim_stack)
 		stack_base = vma->vm_start + rlim_stack;

fs/namei.c

···
 }
 
 /*
+ * This is a temporary kludge to deal with "automount" symlinks; proper
+ * solution is to trigger them on follow_mount(), so that do_lookup()
+ * would DTRT.  To be killed before 2.6.34-final.
+ */
+static inline int follow_on_final(struct inode *inode, unsigned lookup_flags)
+{
+	return inode && unlikely(inode->i_op->follow_link) &&
+		((lookup_flags & LOOKUP_FOLLOW) || S_ISDIR(inode->i_mode));
+}
+
+/*
  * Name resolution.
  * This is the basic name resolution function, turning a pathname into
  * the final dentry. We expect 'base' to be positive and a directory.
···
 		if (err)
 			break;
 		inode = next.dentry->d_inode;
-		if ((lookup_flags & LOOKUP_FOLLOW)
-		    && inode && inode->i_op->follow_link) {
+		if (follow_on_final(inode, lookup_flags)) {
 			err = do_follow_link(&next, nd);
 			if (err)
 				goto return_err;

fs/nfsd/vfs.c

···
 			    flags, current_cred());
 	if (IS_ERR(*filp))
 		host_err = PTR_ERR(*filp);
-	host_err = ima_file_check(*filp, access);
+	else
+		host_err = ima_file_check(*filp, access);
 out_nfserr:
 	err = nfserrno(host_err);
 out:

fs/proc/base.c

···
 {
 	struct pid_namespace *ns = dentry->d_sb->s_fs_info;
 	pid_t tgid = task_tgid_nr_ns(current, ns);
-	char tmp[PROC_NUMBUF];
-	if (!tgid)
-		return ERR_PTR(-ENOENT);
-	sprintf(tmp, "%d", task_tgid_nr_ns(current, ns));
-	return ERR_PTR(vfs_follow_link(nd,tmp));
+	char *name = ERR_PTR(-ENOENT);
+	if (tgid) {
+		name = __getname();
+		if (!name)
+			name = ERR_PTR(-ENOMEM);
+		else
+			sprintf(name, "%d", tgid);
+	}
+	nd_set_link(nd, name);
+	return NULL;
+}
+
+static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd,
+				void *cookie)
+{
+	char *s = nd_get_link(nd);
+	if (!IS_ERR(s))
+		__putname(s);
 }
 
 static const struct inode_operations proc_self_inode_operations = {
 	.readlink	= proc_self_readlink,
 	.follow_link	= proc_self_follow_link,
+	.put_link	= proc_self_put_link,
 };
 
 /*

fs/proc/proc_devtree.c

···
 #include <linux/seq_file.h>
 #include <linux/stat.h>
 #include <linux/string.h>
+#include <linux/of.h>
+#include <linux/module.h>
 #include <asm/prom.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
-#ifndef HAVE_ARCH_DEVTREE_FIXUPS
 static inline void set_node_proc_entry(struct device_node *np,
 				       struct proc_dir_entry *de)
 {
-}
+#ifdef HAVE_ARCH_DEVTREE_FIXUPS
+	np->pde = de;
 #endif
+}
 
 static struct proc_dir_entry *proc_device_tree;
 

fs/sysfs/inode.c

···
 		if (!sd_attrs)
 			return -ENOMEM;
 		sd->s_iattr = sd_attrs;
-	} else {
-		/* attributes were changed at least once in past */
-		iattrs = &sd_attrs->ia_iattr;
+	}
+	/* attributes were changed at least once in past */
+	iattrs = &sd_attrs->ia_iattr;
 
-		if (ia_valid & ATTR_UID)
-			iattrs->ia_uid = iattr->ia_uid;
-		if (ia_valid & ATTR_GID)
-			iattrs->ia_gid = iattr->ia_gid;
-		if (ia_valid & ATTR_ATIME)
-			iattrs->ia_atime = iattr->ia_atime;
-		if (ia_valid & ATTR_MTIME)
-			iattrs->ia_mtime = iattr->ia_mtime;
-		if (ia_valid & ATTR_CTIME)
-			iattrs->ia_ctime = iattr->ia_ctime;
-		if (ia_valid & ATTR_MODE) {
-			umode_t mode = iattr->ia_mode;
-			iattrs->ia_mode = sd->s_mode = mode;
-		}
+	if (ia_valid & ATTR_UID)
+		iattrs->ia_uid = iattr->ia_uid;
+	if (ia_valid & ATTR_GID)
+		iattrs->ia_gid = iattr->ia_gid;
+	if (ia_valid & ATTR_ATIME)
+		iattrs->ia_atime = iattr->ia_atime;
+	if (ia_valid & ATTR_MTIME)
+		iattrs->ia_mtime = iattr->ia_mtime;
+	if (ia_valid & ATTR_CTIME)
+		iattrs->ia_ctime = iattr->ia_ctime;
+	if (ia_valid & ATTR_MODE) {
+		umode_t mode = iattr->ia_mode;
+		iattrs->ia_mode = sd->s_mode = mode;
 	}
 	return 0;
 }

include/linux/amba/bus.h

···
 /*
- *  linux/include/asm-arm/hardware/amba.h
+ *  linux/include/amba/bus.h
+ *
+ *  This device type deals with ARM PrimeCells and anything else that
+ *  presents a proper CID (0xB105F00D) at the end of the I/O register
+ *  region or that is derived from a PrimeCell.
  *
  *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
  *

include/linux/blkdev.h

···
 #define QUEUE_FLAG_NONROT      14	/* non-rotational device (SSD) */
 #define QUEUE_FLAG_VIRT        QUEUE_FLAG_NONROT /* paravirt device */
 #define QUEUE_FLAG_IO_STAT     15	/* do IO stats */
-#define QUEUE_FLAG_CQ	       16	/* hardware does queuing */
-#define QUEUE_FLAG_DISCARD     17	/* supports DISCARD */
+#define QUEUE_FLAG_DISCARD     16	/* supports DISCARD */
 
 #define QUEUE_FLAG_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
 				 (1 << QUEUE_FLAG_CLUSTER) |		\
···
 
 #define blk_queue_plugged(q)	test_bit(QUEUE_FLAG_PLUGGED, &(q)->queue_flags)
 #define blk_queue_tagged(q)	test_bit(QUEUE_FLAG_QUEUED, &(q)->queue_flags)
-#define blk_queue_queuing(q)	test_bit(QUEUE_FLAG_CQ, &(q)->queue_flags)
 #define blk_queue_stopped(q)	test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
 #define blk_queue_nomerges(q)	test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
 #define blk_queue_nonrot(q)	test_bit(QUEUE_FLAG_NONROT, &(q)->queue_flags)

include/linux/fs.h

···
 	uid_t			i_uid;
 	gid_t			i_gid;
 	dev_t			i_rdev;
+	unsigned int		i_blkbits;
 	u64			i_version;
 	loff_t			i_size;
 #ifdef __NEED_I_SIZE_ORDERED
···
 	struct timespec		i_mtime;
 	struct timespec		i_ctime;
 	blkcnt_t		i_blocks;
-	unsigned int		i_blkbits;
 	unsigned short          i_bytes;
 	umode_t			i_mode;
 	spinlock_t		i_lock;	/* i_blocks, i_bytes, maybe i_size */

include/linux/hid.h

···
 	void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
 
 	/* handler for raw output data, used by hidraw */
-	int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t);
+	int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t, unsigned char);
 
 	/* debugging support via debugfs */
 	unsigned short debug;
···
 
 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
 /* We ignore a few input applications that are not widely used */
-#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || (a == 0x000d0002))
+#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006)))
 
 /* HID core API */
 
···
 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
 void hid_output_report(struct hid_report *report, __u8 *data);
 struct hid_device *hid_allocate_device(void);
+struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
 int hid_check_keys_pressed(struct hid_device *hid);
 int hid_connect(struct hid_device *hid, unsigned int connect_mask);

include/linux/input.h

···
 #define KEY_DISPLAY_OFF		245	/* display device to off state */
 
 #define KEY_WIMAX		246
+#define KEY_RFKILL		247	/* Key that controls all radios */
 
 /* Range 248 - 255 is reserved for special needs of AT keyboard driver */
 
···
 #define KEY_NUMERIC_POUND	0x20b
 
 #define KEY_CAMERA_FOCUS	0x210
+
+#define BTN_TRIGGER_HAPPY		0x2c0
+#define BTN_TRIGGER_HAPPY1		0x2c0
+#define BTN_TRIGGER_HAPPY2		0x2c1
+#define BTN_TRIGGER_HAPPY3		0x2c2
+#define BTN_TRIGGER_HAPPY4		0x2c3
+#define BTN_TRIGGER_HAPPY5		0x2c4
+#define BTN_TRIGGER_HAPPY6		0x2c5
+#define BTN_TRIGGER_HAPPY7		0x2c6
+#define BTN_TRIGGER_HAPPY8		0x2c7
+#define BTN_TRIGGER_HAPPY9		0x2c8
+#define BTN_TRIGGER_HAPPY10		0x2c9
+#define BTN_TRIGGER_HAPPY11		0x2ca
+#define BTN_TRIGGER_HAPPY12		0x2cb
+#define BTN_TRIGGER_HAPPY13		0x2cc
+#define BTN_TRIGGER_HAPPY14		0x2cd
+#define BTN_TRIGGER_HAPPY15		0x2ce
+#define BTN_TRIGGER_HAPPY16		0x2cf
+#define BTN_TRIGGER_HAPPY17		0x2d0
+#define BTN_TRIGGER_HAPPY18		0x2d1
+#define BTN_TRIGGER_HAPPY19		0x2d2
+#define BTN_TRIGGER_HAPPY20		0x2d3
+#define BTN_TRIGGER_HAPPY21		0x2d4
+#define BTN_TRIGGER_HAPPY22		0x2d5
+#define BTN_TRIGGER_HAPPY23		0x2d6
+#define BTN_TRIGGER_HAPPY24		0x2d7
+#define BTN_TRIGGER_HAPPY25		0x2d8
+#define BTN_TRIGGER_HAPPY26		0x2d9
+#define BTN_TRIGGER_HAPPY27		0x2da
+#define BTN_TRIGGER_HAPPY28		0x2db
+#define BTN_TRIGGER_HAPPY29		0x2dc
+#define BTN_TRIGGER_HAPPY30		0x2dd
+#define BTN_TRIGGER_HAPPY31		0x2de
+#define BTN_TRIGGER_HAPPY32		0x2df
+#define BTN_TRIGGER_HAPPY33		0x2e0
+#define BTN_TRIGGER_HAPPY34		0x2e1
+#define BTN_TRIGGER_HAPPY35		0x2e2
+#define BTN_TRIGGER_HAPPY36		0x2e3
+#define BTN_TRIGGER_HAPPY37		0x2e4
+#define BTN_TRIGGER_HAPPY38		0x2e5
+#define BTN_TRIGGER_HAPPY39		0x2e6
+#define BTN_TRIGGER_HAPPY40		0x2e7
 
 /* We avoid low common keys in module aliases so they don't get huge. */
 #define KEY_MIN_INTERESTING	KEY_MUTE

include/linux/kfifo.h

···
  */
 static inline bool kfifo_initialized(struct kfifo *fifo)
 {
-	return fifo->buffer != 0;
+	return fifo->buffer != NULL;
 }
 
 /**

include/linux/of.h

···
 #include <linux/bitops.h>
 #include <linux/kref.h>
 #include <linux/mod_devicetable.h>
+#include <linux/spinlock.h>
+
+#include <asm/byteorder.h>
+
+#ifdef CONFIG_OF
 
 typedef u32 phandle;
 typedef u32 ihandle;
···
 struct device_node {
 	const char *name;
 	const char *type;
-	phandle	node;
-#if !defined(CONFIG_SPARC)
-	phandle linux_phandle;
-#endif
+	phandle phandle;
 	char	*full_name;
 
 	struct	property *properties;
···
 #endif
 };
 
+/* Pointer for first entry in chain of all nodes. */
+extern struct device_node *allnodes;
+extern struct device_node *of_chosen;
+extern rwlock_t devtree_lock;
+
 static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
 {
 	return test_bit(flag, &n->_flags);
···
 static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
 {
 	set_bit(flag, &n->_flags);
-}
-
-static inline void
-set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
-{
-	dn->pde = de;
 }
 
 extern struct device_node *of_find_all_nodes(struct device_node *prev);
···
  */
 
 /* Helper to read a big number; size is in cells (not bytes) */
-static inline u64 of_read_number(const u32 *cell, int size)
+static inline u64 of_read_number(const __be32 *cell, int size)
 {
 	u64 r = 0;
 	while (size--)
-		r = (r << 32) | *(cell++);
+		r = (r << 32) | be32_to_cpu(*(cell++));
 	return r;
 }
 
 /* Like of_read_number, but we want an unsigned long result */
-#ifdef CONFIG_PPC32
-static inline unsigned long of_read_ulong(const u32 *cell, int size)
+static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 {
-	return cell[size-1];
+	/* toss away upper bits if unsigned long is smaller than u64 */
+	return of_read_number(cell, size);
 }
-#else
-#define of_read_ulong(cell, size)	of_read_number(cell, size)
-#endif
 
 #include <asm/prom.h>
+
+/* Default #address and #size cells.  Allow arch asm/prom.h to override */
+#if !defined(OF_ROOT_NODE_ADDR_CELLS_DEFAULT)
+#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
+#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
+#endif
+
+/* Default string compare functions, Allow arch asm/prom.h to override */
+#if !defined(of_compat_cmp)
+#define of_compat_cmp(s1, s2, l)	strncasecmp((s1), (s2), (l))
+#define of_prop_cmp(s1, s2)		strcmp((s1), (s2))
+#define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
+#endif
 
 /* flag descriptions */
 #define OF_DYNAMIC	1 /* node and properties were allocated via kmalloc */
···
 	const char *list_name, const char *cells_name, int index,
 	struct device_node **out_node, const void **out_args);
 
+extern int of_machine_is_compatible(const char *compat);
+
+extern int prom_add_property(struct device_node* np, struct property* prop);
+extern int prom_remove_property(struct device_node *np, struct property *prop);
+extern int prom_update_property(struct device_node *np,
+				struct property *newprop,
+				struct property *oldprop);
+
+#if defined(CONFIG_OF_DYNAMIC)
+/* For updating the device tree at runtime */
+extern void of_attach_node(struct device_node *);
+extern void of_detach_node(struct device_node *);
+#endif
+
+#endif /* CONFIG_OF */
 #endif /* _LINUX_OF_H */

include/linux/of_fdt.h

···
  * ends when size is 0
  */
 struct boot_param_header {
-	u32	magic;			/* magic word OF_DT_HEADER */
-	u32	totalsize;		/* total size of DT block */
-	u32	off_dt_struct;		/* offset to structure */
-	u32	off_dt_strings;		/* offset to strings */
-	u32	off_mem_rsvmap;		/* offset to memory reserve map */
-	u32	version;		/* format version */
-	u32	last_comp_version;	/* last compatible version */
+	__be32	magic;			/* magic word OF_DT_HEADER */
+	__be32	totalsize;		/* total size of DT block */
+	__be32	off_dt_struct;		/* offset to structure */
+	__be32	off_dt_strings;		/* offset to strings */
+	__be32	off_mem_rsvmap;		/* offset to memory reserve map */
+	__be32	version;		/* format version */
+	__be32	last_comp_version;	/* last compatible version */
 	/* version 2 fields below */
-	u32	boot_cpuid_phys;	/* Physical CPU id we're booting on */
+	__be32	boot_cpuid_phys;	/* Physical CPU id we're booting on */
 	/* version 3 fields below */
-	u32	dt_strings_size;	/* size of the DT strings block */
+	__be32	dt_strings_size;	/* size of the DT strings block */
 	/* version 17 fields below */
-	u32	dt_struct_size;		/* size of the DT structure block */
+	__be32	dt_struct_size;		/* size of the DT structure block */
 };
 
+/* TBD: Temporary export of fdt globals - remove when code fully merged */
+extern int __initdata dt_root_addr_cells;
+extern int __initdata dt_root_size_cells;
+extern struct boot_param_header *initial_boot_params;
+
 /* For scanning the flat device-tree at boot time */
-extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
-					    const char *uname, int depth,
-					    void *data),
-				  void *data);
-extern void __init *of_get_flat_dt_prop(unsigned long node, const char *name,
-					unsigned long *size);
-extern int __init of_flat_dt_is_compatible(unsigned long node,
-					   const char *name);
-extern unsigned long __init of_get_flat_dt_root(void);
+extern char *find_flat_dt_string(u32 offset);
+extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
+				     int depth, void *data),
+			   void *data);
+extern void *of_get_flat_dt_prop(unsigned long node, const char *name,
+				 unsigned long *size);
+extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
+extern unsigned long of_get_flat_dt_root(void);
+extern void early_init_dt_scan_chosen_arch(unsigned long node);
+extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
+				     int depth, void *data);
+extern void early_init_dt_check_for_initrd(unsigned long node);
+extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
+				     int depth, void *data);
+extern void early_init_dt_add_memory_arch(u64 base, u64 size);
+extern u64 early_init_dt_alloc_memory_arch(u64 size, u64 align);
+extern u64 dt_mem_next_cell(int s, __be32 **cellp);
+
+/*
+ * If BLK_DEV_INITRD, the fdt early init code will call this function,
+ * to be provided by the arch code. start and end are specified as
+ * physical addresses.
+ */
+#ifdef CONFIG_BLK_DEV_INITRD
+extern void early_init_dt_setup_initrd_arch(unsigned long start,
+					    unsigned long end);
+#endif
+
+/* Early flat tree scan hooks */
+extern int early_init_dt_scan_root(unsigned long node, const char *uname,
+				   int depth, void *data);
 
 /* Other Prototypes */
-extern void finish_device_tree(void);
 extern void unflatten_device_tree(void);
 extern void early_init_devtree(void *);
-extern int machine_is_compatible(const char *compat);
-extern void print_properties(struct device_node *node);
-extern int prom_n_intr_cells(struct device_node* np);
-extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
-extern int prom_add_property(struct device_node* np, struct property* prop);
-extern int prom_remove_property(struct device_node *np, struct property *prop);
-extern int prom_update_property(struct device_node *np,
-				struct property *newprop,
-				struct property *oldprop);
 
 #endif /* __ASSEMBLY__ */
 #endif /* _LINUX_OF_FDT_H */

include/linux/spi/dw_spi.h

···
 	unsigned long		paddr;
 	u32			iolen;
 	int			irq;
+	u32			fifo_len;	/* depth of the FIFO buffer */
 	u32			max_freq;	/* max bus freq supported */
 
 	u16			bus_num;
···
 {
 	if (cs > dws->num_cs)
 		return;
+
+	if (dws->cs_control)
+		dws->cs_control(1);
+
 	dw_writel(dws, ser, 1 << cs);
 }
 

include/linux/virtio.h

···
  *	This re-enables callbacks; it returns "false" if there are pending
  *	buffers in the queue, to detect a possible race between the driver
  *	checking for more work, and enabling callbacks.
+ * @detach_unused_buf: detach first unused buffer
+ * 	vq: the struct virtqueue we're talking about.
+ * 	Returns NULL or the "data" token handed to add_buf
  *
  * Locking rules are straightforward: the driver is responsible for
  * locking.  No two operations may be invoked simultaneously, with the exception
···
 
 	void (*disable_cb)(struct virtqueue *vq);
 	bool (*enable_cb)(struct virtqueue *vq);
+	void *(*detach_unused_buf)(struct virtqueue *vq);
 };
 
 /**

include/linux/virtio_balloon.h

···
 
 /* The feature bitmap for virtio balloon */
 #define VIRTIO_BALLOON_F_MUST_TELL_HOST	0 /* Tell before reclaiming pages */
+#define VIRTIO_BALLOON_F_STATS_VQ	1 /* Memory Stats virtqueue */
 
 /* Size of a PFN in the balloon interface. */
 #define VIRTIO_BALLOON_PFN_SHIFT 12
···
 	/* Number of pages we've actually got in balloon. */
 	__le32 actual;
 };
+
+#define VIRTIO_BALLOON_S_SWAP_IN  0   /* Amount of memory swapped in */
+#define VIRTIO_BALLOON_S_SWAP_OUT 1   /* Amount of memory swapped out */
+#define VIRTIO_BALLOON_S_MAJFLT   2   /* Number of major faults */
+#define VIRTIO_BALLOON_S_MINFLT   3   /* Number of minor faults */
+#define VIRTIO_BALLOON_S_MEMFREE  4   /* Total amount of free memory */
+#define VIRTIO_BALLOON_S_MEMTOT   5   /* Total amount of memory */
+#define VIRTIO_BALLOON_S_NR       6
+
+struct virtio_balloon_stat {
+	u16 tag;
+	u64 val;
+} __attribute__((packed));
+
 #endif /* _LINUX_VIRTIO_BALLOON_H */

include/linux/virtio_blk.h

···
 #define VIRTIO_BLK_F_BLK_SIZE	6	/* Block size of disk is available*/
 #define VIRTIO_BLK_F_SCSI	7	/* Supports scsi command passthru */
 #define VIRTIO_BLK_F_FLUSH	9	/* Cache flush command support */
+#define VIRTIO_BLK_F_TOPOLOGY	10	/* Topology information is available */
 
 struct virtio_blk_config {
 	/* The capacity (in 512-byte sectors). */
···
 		__u8 heads;
 		__u8 sectors;
 	} geometry;
+
 	/* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */
 	__u32 blk_size;
+
+	/* the next 4 entries are guarded by VIRTIO_BLK_F_TOPOLOGY  */
+	/* exponent for physical block per logical block. */
+	__u8 physical_block_exp;
+	/* alignment offset in logical blocks. */
+	__u8 alignment_offset;
+	/* minimum I/O size without performance penalty in logical blocks. */
+	__u16 min_io_size;
+	/* optimal sustained I/O size in logical blocks. */
+	__u32 opt_io_size;
+
 } __attribute__((packed));
 
 /*

include/linux/virtio_console.h

···
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
-/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
- * anyone can use the definitions to implement compatible drivers/servers. */
+/*
+ * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
+ * anyone can use the definitions to implement compatible drivers/servers.
+ *
+ * Copyright (C) Red Hat, Inc., 2009, 2010
+ */
 
 /* Feature bits */
 #define VIRTIO_CONSOLE_F_SIZE	0	/* Does host provide console size? */
+#define VIRTIO_CONSOLE_F_MULTIPORT 1	/* Does host provide multiple ports? */
 
 struct virtio_console_config {
 	/* colums of the screens */
 	__u16 cols;
 	/* rows of the screens */
 	__u16 rows;
+	/* max. number of ports this device can hold */
+	__u32 max_nr_ports;
+	/* number of ports added so far */
+	__u32 nr_ports;
 } __attribute__((packed));
 
+/*
+ * A message that's passed between the Host and the Guest for a
+ * particular port.
+ */
+struct virtio_console_control {
+	__u32 id;		/* Port number */
+	__u16 event;		/* The kind of control event (see below) */
+	__u16 value;		/* Extra information for the key */
+};
+
+/* Some events for control messages */
+#define VIRTIO_CONSOLE_PORT_READY	0
+#define VIRTIO_CONSOLE_CONSOLE_PORT	1
+#define VIRTIO_CONSOLE_RESIZE		2
+#define VIRTIO_CONSOLE_PORT_OPEN	3
+#define VIRTIO_CONSOLE_PORT_NAME	4
+#define VIRTIO_CONSOLE_PORT_REMOVE	5
 
 #ifdef __KERNEL__
 int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int));

kernel/kfifo.c

···
 
 	buffer = kmalloc(size, gfp_mask);
 	if (!buffer) {
-		_kfifo_init(fifo, 0, 0);
+		_kfifo_init(fifo, NULL, 0);
 		return -ENOMEM;
 	}
 
···
 void kfifo_free(struct kfifo *fifo)
 {
 	kfree(fifo->buffer);
+	_kfifo_init(fifo, NULL, 0);
 }
 EXPORT_SYMBOL(kfifo_free);
 

kernel/perf_event.c

···
 	task_event->event_id.tid = perf_event_tid(event, task);
 	task_event->event_id.ptid = perf_event_tid(event, current);
 
-	task_event->event_id.time = perf_clock();
-
 	perf_output_put(&handle, task_event->event_id);
 
 	perf_output_end(&handle);
···
 
 static int perf_event_task_match(struct perf_event *event)
 {
-	if (event->state != PERF_EVENT_STATE_ACTIVE)
+	if (event->state < PERF_EVENT_STATE_INACTIVE)
 		return 0;
 
 	if (event->cpu != -1 && event->cpu != smp_processor_id())
···
 	cpuctx = &get_cpu_var(perf_cpu_context);
 	perf_event_task_ctx(&cpuctx->ctx, task_event);
 	if (!ctx)
-		ctx = rcu_dereference(task_event->task->perf_event_ctxp);
+		ctx = rcu_dereference(current->perf_event_ctxp);
 	if (ctx)
 		perf_event_task_ctx(ctx, task_event);
 	put_cpu_var(perf_cpu_context);
···
 			/* .ppid */
 			/* .tid  */
 			/* .ptid */
+			.time = perf_clock(),
 		},
 	};
 
···
 
 static int perf_event_comm_match(struct perf_event *event)
 {
-	if (event->state != PERF_EVENT_STATE_ACTIVE)
+	if (event->state < PERF_EVENT_STATE_INACTIVE)
 		return 0;
 
 	if (event->cpu != -1 && event->cpu != smp_processor_id())
···
 static int perf_event_mmap_match(struct perf_event *event,
 				   struct perf_mmap_event *mmap_event)
 {
-	if (event->state != PERF_EVENT_STATE_ACTIVE)
+	if (event->state < PERF_EVENT_STATE_INACTIVE)
 		return 0;
 
 	if (event->cpu != -1 && event->cpu != smp_processor_id())

kernel/sys.c

···
 	if (which > PRIO_USER || which < PRIO_PROCESS)
 		return -EINVAL;
 
+	rcu_read_lock();
 	read_lock(&tasklist_lock);
 	switch (which) {
 		case PRIO_PROCESS:
···
 	}
 out_unlock:
 	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
 
 	return retval;
 }

lib/idr.c

···
 			id = (id | ((1 << (IDR_BITS * l)) - 1)) + 1;
 
 			/* if already at the top layer, we need to grow */
-			if (!(p = pa[l])) {
+			if (id >= 1 << (idp->layers * IDR_BITS)) {
 				*starting_id = id;
 				return IDR_NEED_TO_GROW;
 			}
+			p = pa[l];
+			BUG_ON(!p);
 
 			/* If we need to go up one layer, continue the
 			 * loop; otherwise, restart from the top.

mm/migrate.c

···
 #define DO_PAGES_STAT_CHUNK_NR 16
 	const void __user *chunk_pages[DO_PAGES_STAT_CHUNK_NR];
 	int chunk_status[DO_PAGES_STAT_CHUNK_NR];
-	unsigned long i, chunk_nr = DO_PAGES_STAT_CHUNK_NR;
-	int err;
 
-	for (i = 0; i < nr_pages; i += chunk_nr) {
-		if (chunk_nr > nr_pages - i)
-			chunk_nr = nr_pages - i;
+	while (nr_pages) {
+		unsigned long chunk_nr;
 
-		err = copy_from_user(chunk_pages, &pages[i],
-				     chunk_nr * sizeof(*chunk_pages));
-		if (err) {
-			err = -EFAULT;
-			goto out;
-		}
+		chunk_nr = nr_pages;
+		if (chunk_nr > DO_PAGES_STAT_CHUNK_NR)
+			chunk_nr = DO_PAGES_STAT_CHUNK_NR;
+
+		if (copy_from_user(chunk_pages, pages, chunk_nr * sizeof(*chunk_pages)))
+			break;
 
 		do_pages_stat_array(mm, chunk_nr, chunk_pages, chunk_status);
 
-		err = copy_to_user(&status[i], chunk_status,
-				   chunk_nr * sizeof(*chunk_status));
-		if (err) {
-			err = -EFAULT;
-			goto out;
-		}
-	}
-	err = 0;
+		if (copy_to_user(status, chunk_status, chunk_nr * sizeof(*status)))
+			break;
 
-out:
-	return err;
+		pages += chunk_nr;
+		status += chunk_nr;
+		nr_pages -= chunk_nr;
+	}
+	return nr_pages ? -EFAULT : 0;
 }
 
 /*

mm/oom_kill.c

···
 	list_for_each_entry(c, &p->children, sibling) {
 		if (c->mm == p->mm)
 			continue;
+		if (mem && !task_in_mem_cgroup(c, mem))
+			continue;
 		if (!oom_kill_task(c))
 			return 0;
 	}

net/bluetooth/hidp/core.c

···
 	return hidp_queue_report(session, buf, rsize);
 }
 
-static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count)
+static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count,
+		unsigned char report_type)
 {
-	if (hidp_send_ctrl_message(hid->driver_data,
-			HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE,
+	switch (report_type) {
+	case HID_FEATURE_REPORT:
+		report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE;
+		break;
+	case HID_OUTPUT_REPORT:
+		report_type = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (hidp_send_ctrl_message(hid->driver_data, report_type,
 			data, count))
 		return -ENOMEM;
 	return count;

net/core/dev.c

···
 	switch (ret) {
 	case GRO_NORMAL:
 	case GRO_HELD:
-		skb->protocol = eth_type_trans(skb, napi->dev);
+		skb->protocol = eth_type_trans(skb, skb->dev);
 
 		if (ret == GRO_HELD)
 			skb_gro_pull(skb, -ETH_HLEN);

net/core/ethtool.c

···
 	case ETHTOOL_GPERMADDR:
 	case ETHTOOL_GUFO:
 	case ETHTOOL_GGSO:
+	case ETHTOOL_GGRO:
 	case ETHTOOL_GFLAGS:
 	case ETHTOOL_GPFLAGS:
 	case ETHTOOL_GRXFH:

net/core/net-sysfs.c

···
 	const struct iw_statistics *iw;
 	ssize_t ret = -EINVAL;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return restart_syscall();
 	if (dev_isalive(dev)) {
 		iw = get_wireless_stats(dev);
 		if (iw)

net/ipv4/devinet.c

···
 {
 	int *valp = ctl->data;
 	int val = *valp;
+	loff_t pos = *ppos;
 	int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
 	if (write && *valp != val) {
 		struct net *net = ctl->extra2;
 
 		if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
-			if (!rtnl_trylock())
+			if (!rtnl_trylock()) {
+				/* Restore the original values before restarting */
+				*valp = val;
+				*ppos = pos;
 				return restart_syscall();
+			}
 			if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
 				inet_forward_change(net);
 			} else if (*valp) {

net/ipv4/igmp.c

···
 		break;
 	case IGMP_HOST_MEMBERSHIP_REPORT:
 	case IGMPV2_HOST_MEMBERSHIP_REPORT:
-	case IGMPV3_HOST_MEMBERSHIP_REPORT:
 		/* Is it our report looped back? */
 		if (skb_rtable(skb)->fl.iif == 0)
 			break;
···
 		in_dev_put(in_dev);
 		return pim_rcv_v1(skb);
 #endif
+	case IGMPV3_HOST_MEMBERSHIP_REPORT:
 	case IGMP_DVMRP:
 	case IGMP_TRACE:
 	case IGMP_HOST_LEAVE_MESSAGE:

net/ipv4/ipcomp.c

···
 	if (x->props.mode == XFRM_MODE_TUNNEL) {
 		err = ipcomp_tunnel_attach(x);
 		if (err)
-			goto error_tunnel;
+			goto out;
 	}
 
 	err = 0;
 out:
 	return err;
-
-error_tunnel:
-	ipcomp_destroy(x);
-	goto out;
 }
 
 static const struct xfrm_type ipcomp_type = {

net/ipv4/tcp_input.c

···
 
 				/* tcp_ack considers this ACK as duplicate
 				 * and does not calculate rtt.
-				 * Fix it at least with timestamps.
+				 * Force it here.
 				 */
-				if (tp->rx_opt.saw_tstamp &&
-				    tp->rx_opt.rcv_tsecr && !tp->srtt)
-					tcp_ack_saw_tstamp(sk, 0);
+				tcp_ack_update_rtt(sk, 0, 0);
 
 				if (tp->rx_opt.tstamp_ok)
 					tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;

net/ipv6/addrconf.c

···
 	if (p == &net->ipv6.devconf_dflt->forwarding)
 		return 0;
 
-	if (!rtnl_trylock())
+	if (!rtnl_trylock()) {
+		/* Restore the original values before restarting */
+		*p = old;
 		return restart_syscall();
+	}
 
 	if (p == &net->ipv6.devconf_all->forwarding) {
 		__s32 newf = net->ipv6.devconf_all->forwarding;
···
 {
 	int *valp = ctl->data;
 	int val = *valp;
+	loff_t pos = *ppos;
 	int ret;
 
 	ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
 	if (write)
 		ret = addrconf_fixup_forwarding(ctl, valp, val);
+	if (ret)
+		*ppos = pos;
 	return ret;
 }
 
···
 	if (p == &net->ipv6.devconf_dflt->disable_ipv6)
 		return 0;
 
-	if (!rtnl_trylock())
+	if (!rtnl_trylock()) {
+		/* Restore the original values before restarting */
+		*p = old;
 		return restart_syscall();
+	}
 
 	if (p == &net->ipv6.devconf_all->disable_ipv6) {
 		__s32 newf = net->ipv6.devconf_all->disable_ipv6;
···
 {
 	int *valp = ctl->data;
 	int val = *valp;
+	loff_t pos = *ppos;
 	int ret;
 
 	ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
 	if (write)
 		ret = addrconf_disable_ipv6(ctl, valp, val);
+	if (ret)
+		*ppos = pos;
 	return ret;
 }
 

net/ipv6/ipcomp6.c

···
 	if (x->props.mode == XFRM_MODE_TUNNEL) {
 		err = ipcomp6_tunnel_attach(x);
 		if (err)
-			goto error_tunnel;
+			goto out;
 	}
 
 	err = 0;
 out:
 	return err;
-error_tunnel:
-	ipcomp_destroy(x);
-
-	goto out;
 }
 
 static const struct xfrm_type ipcomp6_type =

net/mac80211/ibss.c

···
 	}
 	if (pos[1] != 0 &&
 	    (pos[1] != ifibss->ssid_len ||
-	     !memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) {
+	     memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) {
 		/* Ignore ProbeReq for foreign SSID */
 		return;
 	}

net/mac80211/rate.c

···
 		info->control.rates[i].count = 1;
 	}
 
+	if (sdata->local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
+		return;
+
 	if (sta && sdata->force_unicast_rateidx > -1) {
 		info->control.rates[0].idx = sdata->force_unicast_rateidx;
 	} else {

net/mac80211/scan.c

···
 	if (local->scan_req)
 		return -EBUSY;
 
+	if (req != local->int_scan_req &&
+	    sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    !list_empty(&ifmgd->work_list)) {
+		/* actually wait for the work it's doing to finish/time out */
+		set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
+		local->scan_req = req;
+		local->scan_sdata = sdata;
+		return 0;
+	}
+
 	if (local->ops->hw_scan) {
 		u8 *ies;
 
···
 
 	local->scan_req = req;
 	local->scan_sdata = sdata;
-
-	if (req != local->int_scan_req &&
-	    sdata->vif.type == NL80211_IFTYPE_STATION &&
-	    !list_empty(&ifmgd->work_list)) {
-		/* actually wait for the work it's doing to finish/time out */
-		set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
-		return 0;
-	}
 
 	if (local->ops->hw_scan)
 		__set_bit(SCAN_HW_SCANNING, &local->scanning);

net/xfrm/xfrm_state.c

···
 	int err = -ENOMEM;
 	struct xfrm_state *x = xfrm_state_alloc(net);
 	if (!x)
-		goto error;
+		goto out;
 
 	memcpy(&x->id, &orig->id, sizeof(x->id));
 	memcpy(&x->sel, &orig->sel, sizeof(x->sel));
···
 	return x;
 
  error:
+	xfrm_state_put(x);
+out:
 	if (errp)
 		*errp = err;
-	if (x) {
-		kfree(x->aalg);
-		kfree(x->ealg);
-		kfree(x->calg);
-		kfree(x->encap);
-		kfree(x->coaddr);
-	}
-	kfree(x);
 	return NULL;
 }
 

scripts/.gitignore

···
 pnmtologo
 bin2c
 unifdef
-binoffset
 ihex2fw

scripts/binoffset.c

···
-/***************************************************************************
- * binoffset.c
- * (C) 2002 Randy Dunlap <[e-mail]>
-
-#   This program is free software; you can redistribute it and/or modify
-#   it under the terms of the GNU General Public License as published by
-#   the Free Software Foundation; either version 2 of the License, or
-#   (at your option) any later version.
-#
-#   This program is distributed in the hope that it will be useful,
-#   but WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#   GNU General Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License
-#   along with this program; if not, write to the Free Software
-#   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-# binoffset.c:
-# - searches a (binary) file for a specified (binary) pattern
-# - returns the offset of the located pattern or ~0 if not found
-# - exits with exit status 0 normally or non-0 if pattern is not found
-#   or any other error occurs.
-
-****************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-
-#define VERSION		"0.1"
-#define BUF_SIZE	(16 * 1024)
-#define PAT_SIZE	100
-
-char		*progname;
-char		*inputname;
-int		inputfd;
-unsigned int	bix;			/* buf index */
-unsigned char	patterns [PAT_SIZE] = {0}; /* byte-sized pattern array */
-int		pat_len;		/* actual number of pattern bytes */
-unsigned char	*madr;			/* mmap address */
-size_t		filesize;
-int		num_matches = 0;
-off_t		firstloc = 0;
-
-void usage (void)
-{
-	fprintf (stderr, "%s ver. %s\n", progname, VERSION);
-	fprintf (stderr, "usage:  %s filename pattern_bytes\n",
-			progname);
-	fprintf (stderr, "        [prints location of pattern_bytes in file]\n");
-	exit (1);
-}
-
-void get_pattern (int pat_count, char *pats [])
-{
-	int ix, err, tmp;
-
-#ifdef DEBUG
-	fprintf (stderr,"get_pattern: count = %d\n", pat_count);
-	for (ix = 0; ix < pat_count; ix++)
-		fprintf (stderr, "  pat # %d:  [%s]\n", ix, pats[ix]);
-#endif
-
-	for (ix = 0; ix < pat_count; ix++) {
-		tmp = 0;
-		err = sscanf (pats[ix], "%5i", &tmp);
-		if (err != 1 || tmp > 0xff) {
-			fprintf (stderr, "pattern or value error in pattern # %d [%s]\n",
-					ix, pats[ix]);
-			usage ();
-		}
-		patterns [ix] = tmp;
-	}
-	pat_len = pat_count;
-}
-
-void search_pattern (void)
-{
-	for (bix = 0; bix < filesize; bix++) {
-		if (madr[bix] == patterns[0]) {
-			if (memcmp (&madr[bix], patterns, pat_len) == 0) {
-				if (num_matches == 0)
-					firstloc = bix;
-				num_matches++;
-			}
-		}
-	}
-}
-
-#ifdef NOTDEF
-size_t get_filesize (int fd)
-{
-	off_t end_off = lseek (fd, 0, SEEK_END);
-	lseek (fd, 0, SEEK_SET);
-	return (size_t) end_off;
-}
-#endif
-
-size_t get_filesize (int fd)
-{
-	int err;
-	struct stat stat;
-
-	err = fstat (fd, &stat);
-	fprintf (stderr, "filesize: %ld\n", err < 0 ? (long)err : stat.st_size);
-	if (err < 0)
-		return err;
-	return (size_t) stat.st_size;
-}
-
-int main (int argc, char *argv [])
-{
-	progname = argv[0];
-
-	if (argc < 3)
-		usage ();
-
-	get_pattern (argc - 2, argv + 2);
-
-	inputname = argv[1];
-
-	inputfd = open (inputname, O_RDONLY);
-	if (inputfd == -1) {
-		fprintf (stderr, "%s: cannot open '%s'\n",
-				progname, inputname);
-		exit (3);
-	}
-
-	filesize = get_filesize (inputfd);
-
-	madr = mmap (0, filesize, PROT_READ, MAP_PRIVATE, inputfd, 0);
-	if (madr == MAP_FAILED) {
-		fprintf (stderr, "mmap error = %d\n", errno);
-		close (inputfd);
-		exit (4);
-	}
-
-	search_pattern ();
-
-	if (munmap (madr, filesize))
-		fprintf (stderr, "munmap error = %d\n", errno);
-
-	if (close (inputfd))
-		fprintf (stderr, "%s: error %d closing '%s'\n",
-				progname, errno, inputname);
-
-	fprintf (stderr, "number of pattern matches = %d\n", num_matches);
-	if (num_matches == 0)
-		firstloc = ~0;
-	printf ("%ld\n", firstloc);
-	fprintf (stderr, "%ld\n", firstloc);
-
-	exit (num_matches ? 0 : 2);
-}
-
-/* end binoffset.c */

scripts/extract-ikconfig

···
 #!/bin/sh
-# extracts .config info from a [b]zImage file
-# uses: binoffset (new), dd, zcat, strings, grep
-# $arg1 is [b]zImage filename
+# ----------------------------------------------------------------------
+# extract-ikconfig - Extract the .config file from a kernel image
+#
+# This will only work when the kernel was compiled with CONFIG_IKCONFIG.
+#
+# The obscure use of the "tr" filter is to work around older versions of
+# "grep" that report the byte offset of the line instead of the pattern.
+#
+# (c) 2009, Dick Streefland <[e-mail]>
+# Licensed under the terms of the GNU General Public License.
+# ----------------------------------------------------------------------
 
-binoffset="./scripts/binoffset"
-test -e $binoffset || cc -o $binoffset ./scripts/binoffset.c || exit 1
+gz1='\037\213\010'
+gz2='01'
+cf1='IKCFG_ST\037\213\010'
+cf2='0123456789'
 
-IKCFG_ST="0x49 0x4b 0x43 0x46 0x47 0x5f 0x53 0x54"
-IKCFG_ED="0x49 0x4b 0x43 0x46 0x47 0x5f 0x45 0x44"
-dump_config() {
-    file="$1"
-
-    start=`$binoffset $file $IKCFG_ST 2>/dev/null`
-    [ "$?" != "0" ] && start="-1"
-    if [ "$start" -eq "-1" ]; then
-	return
-    fi
-    end=`$binoffset $file $IKCFG_ED 2>/dev/null`
-    [ "$?" != "0" ] && end="-1"
-    if [ "$end" -eq "-1" ]; then
-	return
-    fi
-
-    start=`expr $start + 8`
-    size=`expr $end - $start`
-
-    dd if="$file" ibs=1 skip="$start" count="$size" 2>/dev/null | zcat
-
-    clean_up
-    exit 0
-}
-
-
-usage()
+dump_config()
 {
-	echo "  usage: extract-ikconfig [b]zImage_filename"
-}
-
-clean_up()
-{
-	if [ "$TMPFILE" != "" ]; then
-		rm -f $TMPFILE
+	if	pos=`tr "$cf1\n$cf2" "\n$cf2=" < "$1" | grep -abo "^$cf2"`
+	then
+		pos=${pos%%:*}
+		tail -c+$(($pos+8)) "$1" | zcat -q
+		exit 0
 	fi
 }
 
-if [ $# -lt 1 ]
+# Check invocation:
+me=${0##*/}
+img=$1
+if	[ $# -ne 1 -o ! -s "$img" ]
 then
-	usage
-	exit 1
+	echo "Usage: $me <kernel-image>" >&2
+	exit 2
 fi
 
-TMPFILE=`mktemp -t ikconfig-XXXXXX` || exit 1
-image="$1"
+# Initial attempt for uncompressed images or objects:
+dump_config "$img"
 
-# vmlinux: Attempt to dump the configuration from the file directly
-dump_config "$image"
+# That didn't work, so decompress and try again:
+tmp=/tmp/ikconfig$$
+trap "rm -f $tmp" 0
+for	pos in `tr "$gz1\n$gz2" "\n$gz2=" < "$img" | grep -abo "^$gz2"`
+do
+	pos=${pos%%:*}
+	tail -c+$pos "$img" | zcat 2> /dev/null > $tmp
+	dump_config $tmp
+done
 
-GZHDR1="0x1f 0x8b 0x08 0x00"
-GZHDR2="0x1f 0x8b 0x08 0x08"
-
-ELFHDR="0x7f 0x45 0x4c 0x46"
-
-# vmlinux.gz: Check for a compressed images
-off=`$binoffset "$image" $GZHDR1 2>/dev/null`
-[ "$?" != "0" ] && off="-1"
-if [ "$off" -eq "-1" ]; then
-	off=`$binoffset "$image" $GZHDR2 2>/dev/null`
-	[ "$?" != "0" ] && off="-1"
-fi
-if [ "$off" -eq "0" ]; then
-	zcat <"$image" >"$TMPFILE"
-	dump_config "$TMPFILE"
-elif [ "$off" -ne "-1" ]; then
-	(dd ibs="$off" skip=1 count=0 && dd bs=512k) <"$image" 2>/dev/null | \
-		zcat >"$TMPFILE"
-	dump_config "$TMPFILE"
-
-# check if this is simply an ELF file
-else
-	off=`$binoffset "$image" $ELFHDR 2>/dev/null`
-	[ "$?" != "0" ] && off="-1"
-	if [ "$off" -eq "0" ]; then
-		dump_config "$image"
-	fi
-fi
-
-echo "ERROR: Unable to extract kernel configuration information."
-echo "       This kernel image may not have the config info."
-
-clean_up
+# Bail out:
+echo "$me: Cannot find kernel config." >&2
 exit 1

scripts/kconfig/Makefile

···
 	$(Q)mkdir -p include/generated
 	$< -s $(Kconfig)
 
+# if no path is given, then use src directory to find file
+ifdef LSMOD
+LSMOD_F := $(LSMOD)
+ifeq ($(findstring /,$(LSMOD)),)
+  LSMOD_F := $(objtree)/$(LSMOD)
+endif
+endif
+
 localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
-	$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
+	$(Q)mkdir -p include/generated
+	$(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
 	$(Q)if [ -f .config ]; then 				\
 			cmp -s .tmp.config .config ||		\
 			(mv -f .config .config.old.1;		\
···
 	$(Q)rm -f .tmp.config
 
 localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
-	$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
+	$(Q)mkdir -p include/generated
+	$(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
 	$(Q)sed -i s/=m/=y/ .tmp.config
 	$(Q)if [ -f .config ]; then 				\
 			cmp -s .tmp.config .config ||		\

scripts/kconfig/streamline_config.pl

···
 # Get the build source and top level Kconfig file (passed in)
 my $ksource = $ARGV[0];
 my $kconfig = $ARGV[1];
+my $lsmod_file = $ARGV[2];
 
 my @makefiles = `find $ksource -name Makefile`;
 my %depends;
···
 my %objects;
 my $var;
 my $cont = 0;
+my $iflevel = 0;
+my @ifdeps;
 
 # prevent recursion
 my %read_kconfigs;
···
 	    $state = "NEW";
 	    $config = $1;
 
+	    for (my $i = 0; $i < $iflevel; $i++) {
+		if ($i) {
+		    $depends{$config} .= " " . $ifdeps[$i];
+		} else {
+		    $depends{$config} = $ifdeps[$i];
+		}
+		$state = "DEP";
+	    }
+
 	# collect the depends for the config
 	} elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
 	    $state = "DEP";
···
 	} elsif ($state ne "NONE" && /^\s*tristate\s\S/) {
 	    # note if the config has a prompt
 	    $prompt{$config} = 1;
+
+	# Check for if statements
+	} elsif (/^if\s+(.*\S)\s*$/) {
+	    my $deps = $1;
+	    # remove beginning and ending non text
+	    $deps =~ s/^[^a-zA-Z0-9_]*//;
+	    $deps =~ s/[^a-zA-Z0-9_]*$//;
+
+	    my @deps = split /[^a-zA-Z0-9_]+/, $deps;
+
+	    $ifdeps[$iflevel++] = join ':', @deps;
+
+	} elsif (/^endif/) {
+
+	    $iflevel-- if ($iflevel);
 
 	# stop on "help"
 	} elsif (/^\s*help\s*$/) {
···
 
 my %modules;
 
-# see what modules are loaded on this system
-open(LIN,"/sbin/lsmod|") || die "Cant lsmod";
+if (defined($lsmod_file)) {
+    if ( ! -f $lsmod_file) {
+	die "$lsmod_file not found";
+    }
+    if ( -x $lsmod_file) {
+	# the file is executable, run it
+	open(LIN, "$lsmod_file|");
+    } else {
+	# Just read the contents
+	open(LIN, "$lsmod_file");
+    }
+} else {
+
+    # see what modules are loaded on this system
+    my $lsmod;
+
+    foreach $dir ( ("/sbin", "/bin", "/usr/sbin", "/usr/bin") ) {
+	if ( -x "$dir/lsmod" ) {
+	    $lsmod = "$dir/lsmod";
+	    last;
+	}
+}
+    if (!defined($lsmod)) {
+	# try just the path
+	$lsmod = "lsmod";
+    }
+
+    open(LIN,"$lsmod|") || die "Can not call lsmod with $lsmod";
+}
+
 while (<LIN>) {
 	next if (/^Module/);  # Skip the first line.
 	if (/^(\S+)/) {

security/integrity/ima/ima_iint.c

···
 	spin_lock(&ima_iint_lock);
 	rc = radix_tree_insert(&ima_iint_store, (unsigned long)inode, iint);
 	spin_unlock(&ima_iint_lock);
+	radix_tree_preload_end();
 out:
 	if (rc < 0)
 		kmem_cache_free(iint_cache, iint);
-
-	radix_tree_preload_end();
 
 	return rc;
 }

security/selinux/ss/ebitmap.c

···
 			cmap_idx = delta / NETLBL_CATMAP_MAPSIZE;
 			cmap_sft = delta % NETLBL_CATMAP_MAPSIZE;
 			c_iter->bitmap[cmap_idx]
-				|= e_iter->maps[cmap_idx] << cmap_sft;
+				|= e_iter->maps[i] << cmap_sft;
 		}
 		e_iter = e_iter->next;
 	}

sound/aoa/fabrics/layout.c

···
 				"required property %s not present\n", propname);
 			return -ENODEV;
 		}
-		if (*ref != codec->node->linux_phandle) {
+		if (*ref != codec->node->phandle) {
 			printk(KERN_INFO "snd-aoa-fabric-layout: "
 				"%s doesn't match!\n", propname);
 			return -ENODEV;

sound/ppc/awacs.c

···
 
 static void snd_pmac_awacs_resume(struct snd_pmac *chip)
 {
-	if (machine_is_compatible("PowerBook3,1")
-	    || machine_is_compatible("PowerBook3,2")) {
+	if (of_machine_is_compatible("PowerBook3,1")
+	    || of_machine_is_compatible("PowerBook3,2")) {
 		msleep(100);
 		snd_pmac_awacs_write_reg(chip, 1,
 			chip->awacs_reg[1] & ~MASK_PAROUT);
···
 }
 #endif /* CONFIG_PM */
 
-#define IS_PM7500 (machine_is_compatible("AAPL,7500") \
-		|| machine_is_compatible("AAPL,8500") \
-		|| machine_is_compatible("AAPL,9500"))
-#define IS_PM5500 (machine_is_compatible("AAPL,e411"))
-#define IS_BEIGE (machine_is_compatible("AAPL,Gossamer"))
-#define IS_IMAC1 (machine_is_compatible("PowerMac2,1"))
-#define IS_IMAC2 (machine_is_compatible("PowerMac2,2") \
-		|| machine_is_compatible("PowerMac4,1"))
-#define IS_G4AGP (machine_is_compatible("PowerMac3,1"))
-#define IS_LOMBARD (machine_is_compatible("PowerBook1,1"))
+#define IS_PM7500 (of_machine_is_compatible("AAPL,7500") \
+		|| of_machine_is_compatible("AAPL,8500") \
+		|| of_machine_is_compatible("AAPL,9500"))
+#define IS_PM5500 (of_machine_is_compatible("AAPL,e411"))
+#define IS_BEIGE (of_machine_is_compatible("AAPL,Gossamer"))
+#define IS_IMAC1 (of_machine_is_compatible("PowerMac2,1"))
+#define IS_IMAC2 (of_machine_is_compatible("PowerMac2,2") \
+		|| of_machine_is_compatible("PowerMac4,1"))
+#define IS_G4AGP (of_machine_is_compatible("PowerMac3,1"))
+#define IS_LOMBARD (of_machine_is_compatible("PowerBook1,1"))
 
 static int imac1, imac2;
 

sound/ppc/burgundy.c

···
 static void snd_pmac_burgundy_update_automute(struct snd_pmac *chip, int do_notify)
 {
 	if (chip->auto_mute) {
-		int imac = machine_is_compatible("iMac");
+		int imac = of_machine_is_compatible("iMac");
 		int reg, oreg;
 		reg = oreg = snd_pmac_burgundy_rcb(chip,
 				MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES);
···
  */
 int __devinit snd_pmac_burgundy_init(struct snd_pmac *chip)
 {
-	int imac = machine_is_compatible("iMac");
+	int imac = of_machine_is_compatible("iMac");
 	int i, err;
 
 	/* Checks to see the chip is alive and kicking */

sound/ppc/pmac.c

···
 	}
 
 	/* it seems the Pismo & iBook can't byte-swap in hardware. */
-	if (machine_is_compatible("PowerBook3,1") ||
-	    machine_is_compatible("PowerBook2,1"))
+	if (of_machine_is_compatible("PowerBook3,1") ||
+	    of_machine_is_compatible("PowerBook2,1"))
 		chip->can_byte_swap = 0 ;
 
-	if (machine_is_compatible("PowerBook2,1"))
+	if (of_machine_is_compatible("PowerBook2,1"))
 		chip->can_duplex = 0;
 }
 
···
 	chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
 
 	/* check machine type */
-	if (machine_is_compatible("AAPL,3400/2400")
-	    || machine_is_compatible("AAPL,3500"))
+	if (of_machine_is_compatible("AAPL,3400/2400")
+	    || of_machine_is_compatible("AAPL,3500"))
 		chip->is_pbook_3400 = 1;
-	else if (machine_is_compatible("PowerBook1,1")
-		 || machine_is_compatible("AAPL,PowerBook1998"))
+	else if (of_machine_is_compatible("PowerBook1,1")
+		 || of_machine_is_compatible("AAPL,PowerBook1998"))
 		chip->is_pbook_G3 = 1;
 	chip->node = of_find_node_by_name(NULL, "awacs");
 	sound = of_node_get(chip->node);
···
 	}
 	if (of_device_is_compatible(sound, "tumbler")) {
 		chip->model = PMAC_TUMBLER;
-		chip->can_capture = machine_is_compatible("PowerMac4,2")
-				|| machine_is_compatible("PowerBook4,1");
+		chip->can_capture = of_machine_is_compatible("PowerMac4,2")
+				|| of_machine_is_compatible("PowerBook4,1");
 		chip->can_duplex = 0;
 		// chip->can_byte_swap = 0; /* FIXME: check this */
 		chip->num_freqs = ARRAY_SIZE(tumbler_freqs);

sound/soc/fsl/efika-audio-fabric.c

···
 	struct platform_device *pdev;
 	int rc;
 
-	if (!machine_is_compatible("bplan,efika"))
+	if (!of_machine_is_compatible("bplan,efika"))
 		return -ENODEV;
 
 	card.platform = &mpc5200_audio_dma_platform;

sound/soc/fsl/pcm030-audio-fabric.c

···
 	struct platform_device *pdev;
 	int rc;
 
-	if (!machine_is_compatible("phytec,pcm030"))
+	if (!of_machine_is_compatible("phytec,pcm030"))
 		return -ENODEV;
 
 	card.platform = &mpc5200_audio_dma_platform;

tools/perf/util/probe-event.c

···
 	int ret;
 
 	pp->probes[0] = buf = zalloc(MAX_CMDLEN);
+	pp->found = 1;
 	if (!buf)
 		die("Failed to allocate memory by zalloc.");
 	if (pp->offset) {
···
 error:
 		free(pp->probes[0]);
 		pp->probes[0] = NULL;
+		pp->found = 0;
 	}
 	return ret;
 }
···
 	struct strlist *rawlist;
 	struct str_node *ent;
 
+	memset(&pp, 0, sizeof(pp));
 	fd = open_kprobe_events(O_RDONLY, 0);
 	rawlist = get_trace_kprobe_event_rawlist(fd);
 	close(fd);