Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:
"A new driver for slidebar on Ideapad laptops and a bunch of assorted
driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (32 commits)
Input: add SYN_MAX and SYN_CNT constants
Input: max11801_ts - convert to devm
Input: egalax-ts - fix typo and improve text
Input: MAINTAINERS - change maintainer for cyttsp driver
Input: cyttsp4 - kill 'defined but not used' compiler warnings
Input: add driver for slidebar on Lenovo IdeaPad laptops
Input: omap-keypad - set up irq type from DT
Input: omap-keypad - enable wakeup capability for keypad.
Input: omap-keypad - clear interrupts on open
Input: omap-keypad - convert to threaded IRQ
Input: omap-keypad - use bitfiled instead of hardcoded values
Input: cyttsp4 - remove useless NULL test from cyttsp4_watchdog_timer()
Input: wacom - fix error return code in wacom_probe()
Input: as5011 - fix error return code in as5011_probe()
Input: keyboard, serio - simplify use of devm_ioremap_resource
Input: tegra-kbc - simplify use of devm_ioremap_resource
Input: htcpen - fix incorrect placement of __initdata
Input: qt1070 - add power management ops
Input: wistron_btns - add MODULE_DEVICE_TABLE
Input: wistron_btns - mark the Medion MD96500 keymap as tested
...

Documentation/devicetree/bindings/input/input-reset.txt

···
+Input: sysrq reset sequence
+
+A simple binding to represent a set of keys as described in
+include/uapi/linux/input.h. This is to communicate a sequence of keys to the
+sysrq driver. Upon holding the keys for a specified amount of time (if
+specified) the system is sync'ed and reset.
+
+Key sequences are global to the system but all the keys in a set must be coming
+from the same input device.
+
+The /chosen node should contain a 'linux,sysrq-reset-seq' child node to define
+a set of keys.
+
+Required property:
+sysrq-reset-seq: array of Linux keycodes, one keycode per cell.
+
+Optional property:
+timeout-ms: duration keys must be pressed together in milliseconds before
+generating a sysrq. If omitted the system is rebooted immediately when a valid
+sequence has been recognized.
+
+Example:
+
+ chosen {
+                linux,sysrq-reset-seq {
+                        keyset = <0x03
+                                  0x04
+                                  0x0a>;
+                        timeout-ms = <3000>;
+                };
+         };
+
+Would represent KEY_2, KEY_3 and KEY_9.

Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt

···
 - interrupt-parent: the phandle for the interrupt controller
 - interrupts: touch controller interrupt
 - wakeup-gpios: the gpio pin to be used for waking up the controller
-  as well as uased as irq pin
+  and also used as irq pin
 
 Example:
 

MAINTAINERS

···
 F:	drivers/media/common/cypress_firmware*
 
 CYTTSP TOUCHSCREEN DRIVER
-M:	Javier Martinez Canillas <[e-mail]>
+M:	Ferruh Yigit <[e-mail]>
 L:	[e-mail]
-S:	Maintained
+S:	Supported
 F:	drivers/input/touchscreen/cyttsp*
 F:	include/linux/input/cyttsp.h
 
···
 W:	http://launchpad.net/ideapad-laptop
 S:	Maintained
 F:	drivers/platform/x86/ideapad-laptop.c
+
+IDEAPAD LAPTOP SLIDEBAR DRIVER
+M:	Andrey Moiseev <[e-mail]>
+L:	[e-mail]
+W:	https://github.com/o2genum/ideapad-slidebar
+S:	Maintained
+F:	drivers/input/misc/ideapad_slidebar.c
 
 IDE/ATAPI DRIVERS
 M:	Borislav Petkov <[e-mail]>

drivers/input/joystick/as5011.c

···
 	int irq;
 	int error;
 
-	plat_data = client->dev.platform_data;
+	plat_data = dev_get_platdata(&client->dev);
 	if (!plat_data)
 		return -EINVAL;
 
···
 	if (irq < 0) {
 		dev_err(&client->dev,
 			"Failed to get irq number for button gpio\n");
+		error = irq;
 		goto err_free_button_gpio;
 	}
 

drivers/input/joystick/maplecontrol.c

···
 
 static int dc_pad_open(struct input_dev *dev)
 {
-	struct dc_pad *pad = dev->dev.platform_data;
+	struct dc_pad *pad = dev_get_platdata(&dev->dev);
 
 	maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
 		MAPLE_FUNC_CONTROLLER);
···
 
 static void dc_pad_close(struct input_dev *dev)
 {
-	struct dc_pad *pad = dev->dev.platform_data;
+	struct dc_pad *pad = dev_get_platdata(&dev->dev);
 
 	maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
 		MAPLE_FUNC_CONTROLLER);

drivers/input/keyboard/imx_keypad.c

···
 		return -EINVAL;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "no I/O memory defined in platform data\n");
-		return -EINVAL;
-	}
-
 	input_dev = devm_input_allocate_device(&pdev->dev);
 	if (!input_dev) {
 		dev_err(&pdev->dev, "failed to allocate the input device\n");
···
 	setup_timer(&keypad->check_matrix_timer,
 		    imx_keypad_check_for_events, (unsigned long) keypad);
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	keypad->mmio_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(keypad->mmio_base))
 		return PTR_ERR(keypad->mmio_base);

drivers/input/keyboard/max7359_keypad.c

···
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int max7359_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);

drivers/input/keyboard/nspire-keypad.c

···
 		return -EINVAL;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "missing platform resources\n");
-		return -EINVAL;
-	}
-
 	keypad = devm_kzalloc(&pdev->dev, sizeof(struct nspire_keypad),
 			      GFP_KERNEL);
 	if (!keypad) {
···
 		return PTR_ERR(keypad->clk);
 	}
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	keypad->reg_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(keypad->reg_base))
 		return PTR_ERR(keypad->reg_base);

drivers/input/keyboard/omap4-keypad.c

···
 #define OMAP4_KBD_FULLCODE63_32		0x48
 
 /* OMAP4 bit definitions */
-#define OMAP4_DEF_IRQENABLE_EVENTEN	(1 << 0)
-#define OMAP4_DEF_IRQENABLE_LONGKEY	(1 << 1)
-#define OMAP4_DEF_IRQENABLE_TIMEOUTEN	(1 << 2)
-#define OMAP4_DEF_WUP_EVENT_ENA		(1 << 0)
-#define OMAP4_DEF_WUP_LONG_KEY_ENA	(1 << 1)
-#define OMAP4_DEF_CTRL_NOSOFTMODE	(1 << 1)
-#define OMAP4_DEF_CTRLPTVVALUE		(1 << 2)
-#define OMAP4_DEF_CTRLPTV		(1 << 1)
+#define OMAP4_DEF_IRQENABLE_EVENTEN	BIT(0)
+#define OMAP4_DEF_IRQENABLE_LONGKEY	BIT(1)
+#define OMAP4_DEF_WUP_EVENT_ENA		BIT(0)
+#define OMAP4_DEF_WUP_LONG_KEY_ENA	BIT(1)
+#define OMAP4_DEF_CTRL_NOSOFTMODE	BIT(1)
+#define OMAP4_DEF_CTRL_PTV_SHIFT	2
 
 /* OMAP4 values */
-#define OMAP4_VAL_IRQDISABLE		0x00
-#define OMAP4_VAL_DEBOUNCINGTIME	0x07
-#define OMAP4_VAL_FUNCTIONALCFG		0x1E
-
-#define OMAP4_MASK_IRQSTATUSDISABLE	0xFFFF
+#define OMAP4_VAL_IRQDISABLE		0x0
+#define OMAP4_VAL_DEBOUNCINGTIME	0x7
+#define OMAP4_VAL_PVT			0x7
 
 enum {
 	KBD_REVISION_OMAP4 = 0,
···
 	struct input_dev *input;
 
 	void __iomem *base;
+	bool irq_wake_enabled;
 	unsigned int irq;
 
 	unsigned int rows;
···
 }
 
 
-/* Interrupt handler */
-static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
+/* Interrupt handlers */
+static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
+{
+	struct omap4_keypad *keypad_data = dev_id;
+
+	if (kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS)) {
+		/* Disable interrupts */
+		kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
+				 OMAP4_VAL_IRQDISABLE);
+		return IRQ_WAKE_THREAD;
+	}
+
+	return IRQ_NONE;
+}
+
+static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
 {
 	struct omap4_keypad *keypad_data = dev_id;
 	struct input_dev *input_dev = keypad_data->input;
 	unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
 	unsigned int col, row, code, changed;
 	u32 *new_state = (u32 *) key_state;
-
-	/* Disable interrupts */
-	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
-			 OMAP4_VAL_IRQDISABLE);
 
 	*new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
 	*(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
···
 	disable_irq(keypad_data->irq);
 
 	kbd_writel(keypad_data, OMAP4_KBD_CTRL,
-			OMAP4_VAL_FUNCTIONALCFG);
+			OMAP4_DEF_CTRL_NOSOFTMODE |
+			(OMAP4_VAL_PVT << OMAP4_DEF_CTRL_PTV_SHIFT));
 	kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,
 			OMAP4_VAL_DEBOUNCINGTIME);
+	/* clear pending interrupts */
 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
-			OMAP4_VAL_IRQDISABLE);
+			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
 			OMAP4_DEF_IRQENABLE_EVENTEN |
 				OMAP4_DEF_IRQENABLE_LONGKEY);
···
 		goto err_free_keymap;
 	}
 
-	error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
-			     IRQF_TRIGGER_RISING,
-			     "omap4-keypad", keypad_data);
+	error = request_threaded_irq(keypad_data->irq, omap4_keypad_irq_handler,
+				     omap4_keypad_irq_thread_fn, 0,
+				     "omap4-keypad", keypad_data);
 	if (error) {
 		dev_err(&pdev->dev, "failed to register interrupt\n");
 		goto err_free_input;
 	}
 
+	device_init_wakeup(&pdev->dev, true);
 	pm_runtime_put_sync(&pdev->dev);
 
 	error = input_register_device(keypad_data->input);
···
 
 err_pm_disable:
 	pm_runtime_disable(&pdev->dev);
+	device_init_wakeup(&pdev->dev, false);
 	free_irq(keypad_data->irq, keypad_data);
 err_free_keymap:
 	kfree(keypad_data->keymap);
···
 
 	pm_runtime_disable(&pdev->dev);
 
+	device_init_wakeup(&pdev->dev, false);
+
 	input_unregister_device(keypad_data->input);
 
 	iounmap(keypad_data->base);
···
 MODULE_DEVICE_TABLE(of, omap_keypad_dt_match);
 #endif
 
+#ifdef CONFIG_PM_SLEEP
+static int omap4_keypad_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+	int error;
+
+	if (device_may_wakeup(&pdev->dev)) {
+		error = enable_irq_wake(keypad_data->irq);
+		if (!error)
+			keypad_data->irq_wake_enabled = true;
+	}
+
+	return 0;
+}
+
+static int omap4_keypad_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+
+	if (device_may_wakeup(&pdev->dev) && keypad_data->irq_wake_enabled) {
+		disable_irq_wake(keypad_data->irq);
+		keypad_data->irq_wake_enabled = false;
+	}
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(omap4_keypad_pm_ops,
+			 omap4_keypad_suspend, omap4_keypad_resume);
+
 static struct platform_driver omap4_keypad_driver = {
 	.probe		= omap4_keypad_probe,
 	.remove		= omap4_keypad_remove,
 	.driver		= {
 		.name	= "omap4-keypad",
 		.owner	= THIS_MODULE,
+		.pm	= &omap4_keypad_pm_ops,
 		.of_match_table = of_match_ptr(omap_keypad_dt_match),
 	},
 };

drivers/input/keyboard/qt1070.c

···
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int qt1070_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct qt1070_data *data = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(data->irq);
+
+	return 0;
+}
+
+static int qt1070_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct qt1070_data *data = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(data->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(qt1070_pm_ops, qt1070_suspend, qt1070_resume);
+
 static const struct i2c_device_id qt1070_id[] = {
 	{ "qt1070", 0 },
 	{ },
···
 	.driver	= {
 		.name	= "qt1070",
 		.owner	= THIS_MODULE,
+		.pm	= &qt1070_pm_ops,
 	},
 	.id_table	= qt1070_id,
 	.probe		= qt1070_probe,

drivers/input/keyboard/spear-keyboard.c

···
 	int irq;
 	int error;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "no keyboard resource defined\n");
-		return -EBUSY;
-	}
-
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(&pdev->dev, "not able to get irq for the device\n");
···
 		kbd->suspended_rate = pdata->suspended_rate;
 	}
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	kbd->io_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(kbd->io_base))
 		return PTR_ERR(kbd->io_base);

drivers/input/keyboard/tegra-kbc.c

···
 	if (!tegra_kbc_check_pin_cfg(kbc, &num_rows))
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "failed to get I/O memory\n");
-		return -ENXIO;
-	}
-
 	kbc->irq = platform_get_irq(pdev, 0);
 	if (kbc->irq < 0) {
 		dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
···
 
 	setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	kbc->mmio = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(kbc->mmio))
 		return PTR_ERR(kbc->mmio);

drivers/input/misc/Kconfig

···
 
 	  If unsure, say N.
 
+config INPUT_IDEAPAD_SLIDEBAR
+	tristate "IdeaPad Laptop Slidebar"
+	depends on INPUT
+	depends on SERIO_I8042
+	help
+	  Say Y here if you have an IdeaPad laptop with a slidebar.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ideapad_slidebar.
+
 endif

drivers/input/misc/Makefile

···
 obj-$(CONFIG_INPUT_WM831X_ON)		+= wm831x-on.o
 obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND)	+= xen-kbdfront.o
 obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
+obj-$(CONFIG_INPUT_IDEAPAD_SLIDEBAR)	+= ideapad_slidebar.o

drivers/input/misc/ideapad_slidebar.c

···
+/*
+ * Input driver for slidebars on some Lenovo IdeaPad laptops
+ *
+ * Copyright (C) 2013 Andrey Moiseev <[e-mail]>
+ *
+ * Reverse-engineered from Lenovo SlideNav software (SBarHook.dll).
+ *
+ * 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.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+/*
+ * Currently tested and works on:
+ *	Lenovo IdeaPad Y550
+ *	Lenovo IdeaPad Y550P
+ *
+ * Other models can be added easily. To test,
+ * load with 'force' parameter set 'true'.
+ *
+ * LEDs blinking and input mode are managed via sysfs,
+ * (hex, unsigned byte value):
+ * /sys/devices/platform/ideapad_slidebar/slidebar_mode
+ *
+ * The value is in byte range, however, I only figured out
+ * how bits 0b10011001 work. Some other bits, probably,
+ * are meaningfull too.
+ *
+ * Possible states:
+ *
+ * STD_INT, ONMOV_INT, OFF_INT, LAST_POLL, OFF_POLL
+ *
+ * Meaning:
+ *           released      touched
+ * STD       'heartbeat'   lights follow the finger
+ * ONMOV     no lights     lights follow the finger
+ * LAST      at last pos   lights follow the finger
+ * OFF       no lights     no lights
+ *
+ * INT       all input events are generated, interrupts are used
+ * POLL      no input events by default, to get them,
+ *	     send 0b10000000 (read below)
+ *
+ * Commands: write
+ *
+ * All      |  0b01001 -> STD_INT
+ * possible |  0b10001 -> ONMOV_INT
+ * states   |  0b01000 -> OFF_INT
+ *
+ *                      |  0b0 -> LAST_POLL
+ * STD_INT or ONMOV_INT |
+ *                      |  0b1 -> STD_INT
+ *
+ *                      |  0b0 -> OFF_POLL
+ * OFF_INT or OFF_POLL  |
+ *                      |  0b1 -> OFF_INT
+ *
+ * Any state |   0b10000000 ->  if the slidebar has updated data,
+ *				produce one input event (last position),
+ *				switch to respective POLL mode
+ *				(like 0x0), if not in POLL mode yet.
+ *
+ * Get current state: read
+ *
+ * masked by 0x11 read value means:
+ *
+ * 0x00   LAST
+ * 0x01   STD
+ * 0x10   OFF
+ * 0x11   ONMOV
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/dmi.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/i8042.h>
+#include <linux/serio.h>
+
+#define IDEAPAD_BASE	0xff29
+
+static bool force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
+
+static DEFINE_SPINLOCK(io_lock);
+
+static struct input_dev *slidebar_input_dev;
+static struct platform_device *slidebar_platform_dev;
+
+static u8 slidebar_pos_get(void)
+{
+	u8 res;
+	unsigned long flags;
+
+	spin_lock_irqsave(&io_lock, flags);
+	outb(0xf4, 0xff29);
+	outb(0xbf, 0xff2a);
+	res = inb(0xff2b);
+	spin_unlock_irqrestore(&io_lock, flags);
+
+	return res;
+}
+
+static u8 slidebar_mode_get(void)
+{
+	u8 res;
+	unsigned long flags;
+
+	spin_lock_irqsave(&io_lock, flags);
+	outb(0xf7, 0xff29);
+	outb(0x8b, 0xff2a);
+	res = inb(0xff2b);
+	spin_unlock_irqrestore(&io_lock, flags);
+
+	return res;
+}
+
+static void slidebar_mode_set(u8 mode)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&io_lock, flags);
+	outb(0xf7, 0xff29);
+	outb(0x8b, 0xff2a);
+	outb(mode, 0xff2b);
+	spin_unlock_irqrestore(&io_lock, flags);
+}
+
+static bool slidebar_i8042_filter(unsigned char data, unsigned char str,
+				  struct serio *port)
+{
+	static bool extended = false;
+
+	/* We are only interested in data coming form KBC port */
+	if (str & I8042_STR_AUXDATA)
+		return false;
+
+	/* Scancodes: e03b on move, e0bb on release. */
+	if (data == 0xe0) {
+		extended = true;
+		return true;
+	}
+
+	if (!extended)
+		return false;
+
+	extended = false;
+
+	if (likely((data & 0x7f) != 0x3b)) {
+		serio_interrupt(port, 0xe0, 0);
+		return false;
+	}
+
+	if (data & 0x80) {
+		input_report_key(slidebar_input_dev, BTN_TOUCH, 0);
+	} else {
+		input_report_key(slidebar_input_dev, BTN_TOUCH, 1);
+		input_report_abs(slidebar_input_dev, ABS_X, slidebar_pos_get());
+	}
+	input_sync(slidebar_input_dev);
+
+	return true;
+}
+
+static ssize_t show_slidebar_mode(struct device *dev,
+				  struct device_attribute *attr,
+				  char *buf)
+{
+	return sprintf(buf, "%x\n", slidebar_mode_get());
+}
+
+static ssize_t store_slidebar_mode(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t count)
+{
+	u8 mode;
+	int error;
+
+	error = kstrtou8(buf, 0, &mode);
+	if (error)
+		return error;
+
+	slidebar_mode_set(mode);
+
+	return count;
+}
+
+static DEVICE_ATTR(slidebar_mode, S_IWUSR | S_IRUGO,
+		   show_slidebar_mode, store_slidebar_mode);
+
+static struct attribute *ideapad_attrs[] = {
+	&dev_attr_slidebar_mode.attr,
+	NULL
+};
+
+static struct attribute_group ideapad_attr_group = {
+	.attrs = ideapad_attrs
+};
+
+static const struct attribute_group *ideapad_attr_groups[] = {
+	&ideapad_attr_group,
+	NULL
+};
+
+static int __init ideapad_probe(struct platform_device* pdev)
+{
+	int err;
+
+	if (!request_region(IDEAPAD_BASE, 3, "ideapad_slidebar")) {
+		dev_err(&pdev->dev, "IO ports are busy\n");
+		return -EBUSY;
+	}
+
+	slidebar_input_dev = input_allocate_device();
+	if (!slidebar_input_dev) {
+		dev_err(&pdev->dev, "Failed to allocate input device\n");
+		err = -ENOMEM;
+		goto err_release_ports;
+	}
+
+	slidebar_input_dev->name = "IdeaPad Slidebar";
+	slidebar_input_dev->id.bustype = BUS_HOST;
+	slidebar_input_dev->dev.parent = &pdev->dev;
+	input_set_capability(slidebar_input_dev, EV_KEY, BTN_TOUCH);
+	input_set_capability(slidebar_input_dev, EV_ABS, ABS_X);
+	input_set_abs_params(slidebar_input_dev, ABS_X, 0, 0xff, 0, 0);
+
+	err = i8042_install_filter(slidebar_i8042_filter);
+	if (err) {
+		dev_err(&pdev->dev,
+			"Failed to install i8042 filter: %d\n", err);
+		goto err_free_dev;
+	}
+
+	err = input_register_device(slidebar_input_dev);
+	if (err) {
+		dev_err(&pdev->dev,
+			"Failed to register input device: %d\n", err);
+		goto err_remove_filter;
+	}
+
+	return 0;
+
+err_remove_filter:
+	i8042_remove_filter(slidebar_i8042_filter);
+err_free_dev:
+	input_free_device(slidebar_input_dev);
+err_release_ports:
+	release_region(IDEAPAD_BASE, 3);
+	return err;
+}
+
+static int ideapad_remove(struct platform_device *pdev)
+{
+	i8042_remove_filter(slidebar_i8042_filter);
+	input_unregister_device(slidebar_input_dev);
+	release_region(IDEAPAD_BASE, 3);
+
+	return 0;
+}
+
+static struct platform_driver slidebar_drv = {
+	.driver = {
+		.name = "ideapad_slidebar",
+		.owner = THIS_MODULE,
+	},
+	.remove = ideapad_remove,
+};
+
+static int __init ideapad_dmi_check(const struct dmi_system_id *id)
+{
+	pr_info("Laptop model '%s'\n", id->ident);
+	return 1;
+}
+
+static const struct dmi_system_id ideapad_dmi[] __initconst = {
+	{
+		.ident = "Lenovo IdeaPad Y550",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20017"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y550")
+		},
+		.callback = ideapad_dmi_check
+	},
+	{
+		.ident = "Lenovo IdeaPad Y550P",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20035"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y550P")
+		},
+		.callback = ideapad_dmi_check
+	},
+	{ NULL, }
+};
+MODULE_DEVICE_TABLE(dmi, ideapad_dmi);
+
+static int __init slidebar_init(void)
+{
+	int err;
+
+	if (!force && !dmi_check_system(ideapad_dmi)) {
+		pr_err("DMI does not match\n");
+		return -ENODEV;
+	}
+
+	slidebar_platform_dev = platform_device_alloc("ideapad_slidebar", -1);
+	if (!slidebar_platform_dev) {
+		pr_err("Not enough memory\n");
+		return -ENOMEM;
+	}
+
+	slidebar_platform_dev->dev.groups = ideapad_attr_groups;
+
+	err = platform_device_add(slidebar_platform_dev);
+	if (err) {
+		pr_err("Failed to register platform device\n");
+		goto err_free_dev;
+	}
+
+	err = platform_driver_probe(&slidebar_drv, ideapad_probe);
+	if (err) {
+		pr_err("Failed to register platform driver\n");
+		goto err_delete_dev;
+	}
+
+	return 0;
+
+err_delete_dev:
+	platform_device_del(slidebar_platform_dev);
+err_free_dev:
+	platform_device_put(slidebar_platform_dev);
+	return err;
+}
+
+static void __exit slidebar_exit(void)
+{
+	platform_device_unregister(slidebar_platform_dev);
+	platform_driver_unregister(&slidebar_drv);
+}
+
+module_init(slidebar_init);
+module_exit(slidebar_exit);
+
+MODULE_AUTHOR("Andrey Moiseev <[e-mail]>");
+MODULE_DESCRIPTION("Slidebar input support for some Lenovo IdeaPad laptops");
+MODULE_LICENSE("GPL");

drivers/input/misc/pwm-beeper.c

···
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int pwm_beeper_suspend(struct device *dev)
 {
 	struct pwm_beeper *beeper = dev_get_drvdata(dev);

drivers/input/misc/twl6040-vibra.c

···
 
 static int twl6040_vibra_probe(struct platform_device *pdev)
 {
-	struct twl6040_vibra_data *pdata = pdev->dev.platform_data;
 	struct device *twl6040_core_dev = pdev->dev.parent;
 	struct device_node *twl6040_core_node = NULL;
 	struct vibra_info *info;
···
 						 "vibra");
 #endif
 
-	if (!pdata && !twl6040_core_node) {
-		dev_err(&pdev->dev, "platform_data not available\n");
+	if (!twl6040_core_node) {
+		dev_err(&pdev->dev, "parent of node is missing?\n");
 		return -EINVAL;
 	}
 
···
 	info->dev = &pdev->dev;
 
 	info->twl6040 = dev_get_drvdata(pdev->dev.parent);
-	if (pdata) {
-		info->vibldrv_res = pdata->vibldrv_res;
-		info->vibrdrv_res = pdata->vibrdrv_res;
-		info->viblmotor_res = pdata->viblmotor_res;
-		info->vibrmotor_res = pdata->vibrmotor_res;
-		vddvibl_uV = pdata->vddvibl_uV;
-		vddvibr_uV = pdata->vddvibr_uV;
-	} else {
-		of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
-				     &info->vibldrv_res);
-		of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
-				     &info->vibrdrv_res);
-		of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
-				     &info->viblmotor_res);
-		of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
-				     &info->vibrmotor_res);
-		of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV",
-				     &vddvibl_uV);
-		of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV",
-				     &vddvibr_uV);
-	}
+
+	of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
+			     &info->vibldrv_res);
+	of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
+			     &info->vibrdrv_res);
+	of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
+			     &info->viblmotor_res);
+	of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
+			     &info->vibrmotor_res);
+	of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV);
+	of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV);
 
 	if ((!info->vibldrv_res && !info->viblmotor_res) ||
 	    (!info->vibrdrv_res && !info->vibrmotor_res)) {
···
 	 * When booted with Device tree the regulators are attached to the
 	 * parent device (twl6040 MFD core)
 	 */
-	ret = regulator_bulk_get(pdata ? info->dev : twl6040_core_dev,
-				 ARRAY_SIZE(info->supplies), info->supplies);
+	ret = regulator_bulk_get(twl6040_core_dev, ARRAY_SIZE(info->supplies),
+				 info->supplies);
 	if (ret) {
 		dev_err(info->dev, "couldn't get regulators %d\n", ret);
 		return ret;

drivers/input/misc/wistron_btns.c

···
 MODULE_AUTHOR("Miloslav Trmac <[e-mail]>");
 MODULE_DESCRIPTION("Wistron laptop button driver");
 MODULE_LICENSE("GPL v2");
-MODULE_VERSION("0.3");
 
 static bool force; /* = 0; */
 module_param(force, bool, 0);
···
 	{ KE_KEY, 0x36, {KEY_WWW} },
 	{ KE_WIFI, 0x30 },
 	{ KE_BLUETOOTH, 0x44 },
-	{ KE_END, FE_UNTESTED }
+	{ KE_END, 0 }
 };
 
 static struct key_entry keymap_wistron_generic[] __initdata = {
···
  * a list of buttons and their key codes (reported when loading this module
  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
  */
-static const struct dmi_system_id __initconst dmi_ids[] = {
+static const struct dmi_system_id dmi_ids[] __initconst = {
 	{
 		/* Fujitsu-Siemens Amilo Pro V2000 */
 		.callback = dmi_matched,
···
 	},
 	{ NULL, }
 };
+MODULE_DEVICE_TABLE(dmi, dmi_ids);
 
 /* Copy the good keymap, as the original ones are free'd */
 static int __init copy_keymap(void)

drivers/input/mouse/lifebook.c

···
 	return 1;
 }
 
-static const struct dmi_system_id __initconst lifebook_dmi_table[] = {
+static const struct dmi_system_id lifebook_dmi_table[] __initconst = {
 	{
 		/* FLORA-ie 55mi */
 		.matches = {

drivers/input/mouse/synaptics.c

···
 
 static bool impaired_toshiba_kbc;
 
-static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
+static const struct dmi_system_id toshiba_dmi_table[] __initconst = {
 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
 	{
 		/* Toshiba Satellite */
···
 
 static bool broken_olpc_ec;
 
-static const struct dmi_system_id __initconst olpc_dmi_table[] = {
+static const struct dmi_system_id olpc_dmi_table[] __initconst = {
 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
 	{
 		/* OLPC XO-1 or XO-1.5 */

drivers/input/serio/arc_ps2.c

···
 	int irq;
 	int error, id, i;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "no IO memory defined\n");
-		return -EINVAL;
-	}
-
 	irq = platform_get_irq_byname(pdev, "arc_ps2_irq");
 	if (irq < 0) {
 		dev_err(&pdev->dev, "no IRQ defined\n");
···
 		return -ENOMEM;
 	}
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	arc_ps2->addr = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(arc_ps2->addr))
 		return PTR_ERR(arc_ps2->addr);

drivers/input/serio/i8042.h

···
 #define I8042_CTL_TIMEOUT	10000
 
 /*
- * Status register bits.
- */
-
-#define I8042_STR_PARITY	0x80
-#define I8042_STR_TIMEOUT	0x40
-#define I8042_STR_AUXDATA	0x20
-#define I8042_STR_KEYLOCK	0x10
-#define I8042_STR_CMDDAT	0x08
-#define I8042_STR_MUXERR	0x04
-#define I8042_STR_IBF		0x02
-#define	I8042_STR_OBF		0x01
-
-/*
- * Control register bits.
- */
-
-#define I8042_CTR_KBDINT	0x01
-#define I8042_CTR_AUXINT	0x02
-#define I8042_CTR_IGNKEYLOCK	0x08
-#define I8042_CTR_KBDDIS	0x10
-#define I8042_CTR_AUXDIS	0x20
-#define I8042_CTR_XLATE		0x40
-
-/*
  * Return codes.
  */
 

drivers/input/serio/olpc_apsp.c

···
 
 	np = pdev->dev.of_node;
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENOENT;
-
 	priv->base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(priv->base)) {
 		dev_err(&pdev->dev, "Failed to map WTM registers\n");

drivers/input/tablet/wacom_sys.c

···
 	return logical_extents / physical_extents;
 }
 
-/*
- * The physical dimension specified by the HID descriptor is likely not in
- * the "100th of a mm" units expected by wacom_calculate_touch_res. This
- * function adjusts the value of [xy]_phy based on the unit and exponent
- * provided by the HID descriptor. If an error occurs durring conversion
- * (e.g. from the unit being left unspecified) [xy]_phy is not modified.
- */
-static void wacom_fix_phy_from_hid(struct wacom_features *features)
-{
-	int xres = wacom_calc_hid_res(features->x_max, features->x_phy,
-					features->unit, features->unitExpo);
-	int yres = wacom_calc_hid_res(features->y_max, features->y_phy,
-					features->unit, features->unitExpo);
-
-	if (xres > 0 && yres > 0) {
-		features->x_phy = (100 * features->x_max) / xres;
-		features->y_phy = (100 * features->y_max) / yres;
-	}
-}
-
-/*
- * Static values for max X/Y and resolution of Pen interface is stored in
- * features. This mean physical size of active area can be computed.
- * This is useful to do when Pen and Touch have same active area of tablet.
- * This means for Touch device, we only need to find max X/Y value and we
- * have enough information to compute resolution of touch.
- */
-static void wacom_set_phy_from_res(struct wacom_features *features)
-{
-	features->x_phy = (features->x_max * 100) / features->x_resolution;
-	features->y_phy = (features->y_max * 100) / features->y_resolution;
-}
-
 static int wacom_parse_logical_collection(unsigned char *report,
 					  struct wacom_features *features)
 {
···
 		/* Logical collection is only used by 3rd gen Bamboo Touch */
 		features->pktlen = WACOM_PKGLEN_BBTOUCH3;
 		features->device_type = BTN_TOOL_FINGER;
-
-		wacom_set_phy_from_res(features);
 
 		features->x_max = features->y_max =
 			get_unaligned_le16(&report[10]);
···
 		}
 	}
 	error = wacom_parse_hid(intf, hid_desc, features);
-	if (error)
-		goto out;
-	wacom_fix_phy_from_hid(features);
 
  out:
 	return error;
···
 			*((struct wacom_features *)id->driver_info);
 		wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
 		wacom_wac2->features.device_type = BTN_TOOL_FINGER;
-		wacom_set_phy_from_res(&wacom_wac2->features);
 		wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
 		error = wacom_register_input(wacom2);
 		if (error)
···
 	wacom_wac1->input = NULL;
 fail1:
 	return;
+}
+
+/*
+ * Not all devices report physical dimensions from HID.
+ * Compute the default from hardcoded logical dimension
+ * and resolution before driver overwrites them.
+ */
+static void wacom_set_default_phy(struct wacom_features *features)
+{
+	if (features->x_resolution) {
+		features->x_phy = (features->x_max * 100) /
+					features->x_resolution;
+		features->y_phy = (features->y_max * 100) /
+					features->y_resolution;
+	}
+}
+
+static void wacom_calculate_res(struct wacom_features *features)
+{
+	features->x_resolution = wacom_calc_hid_res(features->x_max,
+						    features->x_phy,
+						    features->unit,
+						    features->unitExpo);
+	features->y_resolution = wacom_calc_hid_res(features->y_max,
+						    features->y_phy,
+						    features->unit,
+						    features->unitExpo);
 }
 
 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
···
 
 	endpoint = &intf->cur_altsetting->endpoint[0].desc;
 
+	/* set the default size in case we do not get them from hid */
+	wacom_set_default_phy(features);
+
 	/* Retrieve the physical and logical size for touch devices */
 	error = wacom_retrieve_hid_descriptor(intf, features);
 	if (error)
···
 			features->device_type = BTN_TOOL_FINGER;
 			features->pktlen = WACOM_PKGLEN_BBTOUCH3;
 
-			wacom_set_phy_from_res(features);
-
 			features->x_max = 4096;
 			features->y_max = 4096;
 		} else {
···
 	}
 
 	wacom_setup_device_quirks(features);
+
+	/* set unit to "100th of a mm" for devices not reported by HID */
+	if (!features->unit) {
+		features->unit = 0x11;
+		features->unitExpo = 16 - 3;
+	}
+	wacom_calculate_res(features);
 
 	strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
 
···
 			features->device_type == BTN_TOOL_PEN ?
 				" Pen" : " Finger",
 			sizeof(wacom_wac->name));
-
 
 		other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
 		if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
···
 	usb_set_intfdata(intf, wacom);
 
 	if (features->quirks & WACOM_QUIRK_MONITOR) {
-		if (usb_submit_urb(wacom->irq, GFP_KERNEL))
+		if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
+			error = -EIO;
 			goto fail5;
+		}
 	}
 
 	return 0;
···
 	wacom_query_tablet_data(intf, features);
 	wacom_led_control(wacom);
 
-	if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR)
-	     && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
+	if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) &&
+	    usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
 		rv = -EIO;
 
 	mutex_unlock(&wacom->lock);

drivers/input/tablet/wacom_wac.c

···
 	}
 }
 
-static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
-					      unsigned int physical_max)
-{
-       /* Touch physical dimensions are in 100th of mm */
-       return (logical_max * 100) / physical_max;
-}
-
 static void wacom_abs_set_axis(struct input_dev *input_dev,
 			       struct wacom_wac *wacom_wac)
 {
···
 			input_set_abs_params(input_dev, ABS_Y, 0,
 				features->y_max, features->y_fuzz, 0);
 			input_abs_set_res(input_dev, ABS_X,
-				wacom_calculate_touch_res(features->x_max,
-							features->x_phy));
+					  features->x_resolution);
 			input_abs_set_res(input_dev, ABS_Y,
-				wacom_calculate_touch_res(features->y_max,
-							features->y_phy));
+					  features->y_resolution);
 		}
 
 		if (features->touch_max > 1) {
···
 			input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
 				features->y_max, features->y_fuzz, 0);
 			input_abs_set_res(input_dev, ABS_MT_POSITION_X,
-				wacom_calculate_touch_res(features->x_max,
-							features->x_phy));
+					  features->x_resolution);
 			input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
-				wacom_calculate_touch_res(features->y_max,
-							features->y_phy));
+					  features->y_resolution);
 		}
 	}
 }

drivers/input/touchscreen/cy8ctmg110_ts.c

···
 	return err;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int cy8ctmg110_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
···
 	}
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(cy8ctmg110_pm, cy8ctmg110_suspend, cy8ctmg110_resume);
-#endif
 
 static int cy8ctmg110_remove(struct i2c_client *client)
 {
···
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= CY8CTMG110_DRIVER_NAME,
-#ifdef CONFIG_PM
 		.pm	= &cy8ctmg110_pm,
-#endif
 	},
 	.id_table	= cy8ctmg110_idtable,
 	.probe		= cy8ctmg110_probe,

drivers/input/touchscreen/cyttsp4_core.c

···
 
 	dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__);
 
-	if (!cd)
-		return;
-
 	if (!work_pending(&cd->watchdog_work))
 		schedule_work(&cd->watchdog_work);
 
···
 	return rc;
 }
 
-static int cyttsp4_core_sleep(struct cyttsp4 *cd)
-{
-	int rc;
-
-	rc = cyttsp4_request_exclusive(cd, cd->dev,
-			CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
-	if (rc < 0) {
-		dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
-				__func__, cd->exclusive_dev, cd->dev);
-		return 0;
-	}
-
-	rc = cyttsp4_core_sleep_(cd);
-
-	if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
-		dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
-	else
-		dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
-
-	return rc;
-}
-
-static int cyttsp4_core_wake_(struct cyttsp4 *cd)
-{
-	struct device *dev = cd->dev;
-	int rc;
-	u8 mode;
-	int t;
-
-	/* Already woken? */
-	mutex_lock(&cd->system_lock);
-	if (cd->sleep_state == SS_SLEEP_OFF) {
-		mutex_unlock(&cd->system_lock);
-		return 0;
-	}
-	cd->int_status &= ~CY_INT_IGNORE;
-	cd->int_status |= CY_INT_AWAKE;
-	cd->sleep_state = SS_WAKING;
-
-	if (cd->cpdata->power) {
-		dev_dbg(dev, "%s: Power up HW\n", __func__);
-		rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
-	} else {
-		dev_dbg(dev, "%s: No power function\n", __func__);
-		rc = -ENOSYS;
-	}
-	if (rc < 0) {
-		dev_err(dev, "%s: HW Power up fails r=%d\n",
-				__func__, rc);
-
-		/* Initiate a read transaction to wake up */
-		cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
-	} else
-		dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
-			__func__);
-	mutex_unlock(&cd->system_lock);
-
-	t = wait_event_timeout(cd->wait_q,
-			(cd->int_status & CY_INT_AWAKE) == 0,
-			msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
-	if (IS_TMO(t)) {
-		dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
-		mutex_lock(&cd->system_lock);
-		cd->int_status &= ~CY_INT_AWAKE;
-		/* Try starting up */
-		cyttsp4_queue_startup_(cd);
-		mutex_unlock(&cd->system_lock);
-	}
-
-	mutex_lock(&cd->system_lock);
-	cd->sleep_state = SS_SLEEP_OFF;
-	mutex_unlock(&cd->system_lock);
-
-	cyttsp4_start_wd_timer(cd);
-
-	return 0;
-}
-
-static int cyttsp4_core_wake(struct cyttsp4 *cd)
-{
-	int rc;
-
-	rc = cyttsp4_request_exclusive(cd, cd->dev,
-			CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
-	if (rc < 0) {
-		dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
-				__func__, cd->exclusive_dev, cd->dev);
-		return 0;
-	}
-
-	rc = cyttsp4_core_wake_(cd);
-
-	if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
-		dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
-	else
-		dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
-
-	return rc;
-}
-
 static int cyttsp4_startup_(struct cyttsp4 *cd)
 {
 	int retry = CY_CORE_STARTUP_RETRY_COUNT;
···
 }
 
 #if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
+static int cyttsp4_core_sleep(struct cyttsp4 *cd)
+{
+	int rc;
+
+	rc = cyttsp4_request_exclusive(cd, cd->dev,
+			CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
+	if (rc < 0) {
+		dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
+				__func__, cd->exclusive_dev, cd->dev);
+		return 0;
+	}
+
+	rc = cyttsp4_core_sleep_(cd);
+
+	if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
+		dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
+	else
+		dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
+
+	return rc;
+}
+
+static int cyttsp4_core_wake_(struct cyttsp4 *cd)
+{
+	struct device *dev = cd->dev;
+	int rc;
+	u8 mode;
+	int t;
+
+	/* Already woken? */
+	mutex_lock(&cd->system_lock);
+	if (cd->sleep_state == SS_SLEEP_OFF) {
+		mutex_unlock(&cd->system_lock);
+		return 0;
+	}
+	cd->int_status &= ~CY_INT_IGNORE;
+	cd->int_status |= CY_INT_AWAKE;
+	cd->sleep_state = SS_WAKING;
+
+	if (cd->cpdata->power) {
+		dev_dbg(dev, "%s: Power up HW\n", __func__);
+		rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
+	} else {
+		dev_dbg(dev, "%s: No power function\n", __func__);
+		rc = -ENOSYS;
+	}
+	if (rc < 0) {
+		dev_err(dev, "%s: HW Power up fails r=%d\n",
+				__func__, rc);
+
+		/* Initiate a read transaction to wake up */
+		cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
+	} else
+		dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
+			__func__);
+	mutex_unlock(&cd->system_lock);
+
+	t = wait_event_timeout(cd->wait_q,
+			(cd->int_status & CY_INT_AWAKE) == 0,
+			msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
+	if (IS_TMO(t)) {
+		dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
+		mutex_lock(&cd->system_lock);
+		cd->int_status &= ~CY_INT_AWAKE;
+		/* Try starting up */
+		cyttsp4_queue_startup_(cd);
+		mutex_unlock(&cd->system_lock);
+	}
+
+	mutex_lock(&cd->system_lock);
+	cd->sleep_state = SS_SLEEP_OFF;
+	mutex_unlock(&cd->system_lock);
+
+	cyttsp4_start_wd_timer(cd);
+
+	return 0;
+}
+
+static int cyttsp4_core_wake(struct cyttsp4 *cd)
+{
+	int rc;
+
+	rc = cyttsp4_request_exclusive(cd, cd->dev,
+			CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
+	if (rc < 0) {
+		dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
+				__func__, cd->exclusive_dev, cd->dev);
+		return 0;
+	}
+
+	rc = cyttsp4_core_wake_(cd);
+
+	if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
+		dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
+	else
+		dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
+
+	return rc;
+}
+
 static int cyttsp4_core_suspend(struct device *dev)
 {
 	struct cyttsp4 *cd = dev_get_drvdata(dev);

drivers/input/touchscreen/eeti_ts.c

···
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int eeti_ts_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
···
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(eeti_ts_pm, eeti_ts_suspend, eeti_ts_resume);
-#endif
 
 static const struct i2c_device_id eeti_ts_id[] = {
 	{ "eeti_ts", 0 },
···
 static struct i2c_driver eeti_ts_driver = {
 	.driver = {
 		.name = "eeti_ts",
-#ifdef CONFIG_PM
 		.pm = &eeti_ts_pm,
-#endif
 	},
 	.probe = eeti_ts_probe,
 	.remove = eeti_ts_remove,

drivers/input/touchscreen/htcpen.c

···
 	}
 };
 
-static struct dmi_system_id __initdata htcshift_dmi_table[] = {
+static struct dmi_system_id htcshift_dmi_table[] __initdata = {
 	{
 		.ident = "Shift",
 		.matches = {

drivers/input/touchscreen/max11801_ts.c

···
 	struct input_dev *input_dev;
 	int error;
 
-	data = kzalloc(sizeof(struct max11801_data), GFP_KERNEL);
-	input_dev = input_allocate_device();
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	input_dev = devm_input_allocate_device(&client->dev);
 	if (!data || !input_dev) {
 		dev_err(&client->dev, "Failed to allocate memory\n");
-		error = -ENOMEM;
-		goto err_free_mem;
+		return -ENOMEM;
 	}
 
 	data->client = client;
···
 
 	max11801_ts_phy_init(data);
 
-	error = request_threaded_irq(client->irq, NULL, max11801_ts_interrupt,
-				     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-				     "max11801_ts", data);
+	error = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+					  max11801_ts_interrupt,
+					  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+					  "max11801_ts", data);
 	if (error) {
 		dev_err(&client->dev, "Failed to register interrupt\n");
-		goto err_free_mem;
+		return error;
 	}
 
 	error = input_register_device(data->input_dev);
 	if (error)
-		goto err_free_irq;
+		return error;
 
 	i2c_set_clientdata(client, data);
-	return 0;
-
-err_free_irq:
-	free_irq(client->irq, data);
-err_free_mem:
-	input_free_device(input_dev);
-	kfree(data);
-	return error;
-}
-
-static int max11801_ts_remove(struct i2c_client *client)
-{
-	struct max11801_data *data = i2c_get_clientdata(client);
-
-	free_irq(client->irq, data);
-	input_unregister_device(data->input_dev);
-	kfree(data);
-
 	return 0;
 }
 
···
 	},
 	.id_table	= max11801_ts_id,
 	.probe		= max11801_ts_probe,
-	.remove		= max11801_ts_remove,
 };
 
 module_i2c_driver(max11801_ts_driver);

drivers/tty/sysrq.c

···
 #include <linux/moduleparam.h>
 #include <linux/jiffies.h>
 #include <linux/syscalls.h>
+#include <linux/of.h>
 
 #include <asm/ptrace.h>
 #include <asm/irq_regs.h>
···
 	}
 }
 
+#ifdef CONFIG_OF
+static void sysrq_of_get_keyreset_config(void)
+{
+	u32 key;
+	struct device_node *np;
+	struct property *prop;
+	const __be32 *p;
+
+	np = of_find_node_by_path("/chosen/linux,sysrq-reset-seq");
+	if (!np) {
+		pr_debug("No sysrq node found");
+		return;
+	}
+
+	/* Reset in case a __weak definition was present */
+	sysrq_reset_seq_len = 0;
+
+	of_property_for_each_u32(np, "keyset", prop, p, key) {
+		if (key == KEY_RESERVED || key > KEY_MAX ||
+		    sysrq_reset_seq_len == SYSRQ_KEY_RESET_MAX)
+			break;
+
+		sysrq_reset_seq[sysrq_reset_seq_len++] = (unsigned short)key;
+	}
+
+	/* Get reset timeout if any. */
+	of_property_read_u32(np, "timeout-ms", &sysrq_reset_downtime_ms);
+}
+#else
+static void sysrq_of_get_keyreset_config(void)
+{
+}
+#endif
+
 static void sysrq_reinject_alt_sysrq(struct work_struct *work)
 {
 	struct sysrq_state *sysrq =
···
 	int error;
 	int i;
 
+	/* First check if a __weak interface was instantiated. */
 	for (i = 0; i < ARRAY_SIZE(sysrq_reset_seq); i++) {
 		key = platform_sysrq_reset_seq[i];
 		if (key == KEY_RESERVED || key > KEY_MAX)
···
 
 		sysrq_reset_seq[sysrq_reset_seq_len++] = key;
 	}
+
+	/*
+	 * DT configuration takes precedence over anything that would
+	 * have been defined via the __weak interface.
+	 */
+	sysrq_of_get_keyreset_config();
 
 	error = input_register_handler(&sysrq_handler);
 	if (error)

include/linux/i8042.h

···
 #define I8042_CMD_MUX_PFX	0x0090
 #define I8042_CMD_MUX_SEND	0x1090
 
+/*
+ * Status register bits.
+ */
+
+#define I8042_STR_PARITY	0x80
+#define I8042_STR_TIMEOUT	0x40
+#define I8042_STR_AUXDATA	0x20
+#define I8042_STR_KEYLOCK	0x10
+#define I8042_STR_CMDDAT	0x08
+#define I8042_STR_MUXERR	0x04
+#define I8042_STR_IBF		0x02
+#define I8042_STR_OBF		0x01
+
+/*
+ * Control register bits.
+ */
+
+#define I8042_CTR_KBDINT	0x01
+#define I8042_CTR_AUXINT	0x02
+#define I8042_CTR_IGNKEYLOCK	0x08
+#define I8042_CTR_KBDDIS	0x10
+#define I8042_CTR_AUXDIS	0x20
+#define I8042_CTR_XLATE		0x40
+
 struct serio;
 
 #if defined(CONFIG_SERIO_I8042) || defined(CONFIG_SERIO_I8042_MODULE)

include/uapi/linux/input.h

···
 #define SYN_CONFIG		1
 #define SYN_MT_REPORT		2
 #define SYN_DROPPED		3
+#define SYN_MAX			0xf
+#define SYN_CNT			(SYN_MAX+1)
 
 /*
  * Keys and buttons