Merge tag 'fbdev-v5.2' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"Four small fixes for fb core, updates for udlfb, sm712fb, macfb and
atafb drivers. Redundant code removals from amba-clcd and atmel_lcdfb
drivers. Minor fixes/cleanups for other fb drivers

Detailed summary:

- fix regression in fbcon logo handling on 'quiet' boots (Andreas
Schwab)

- fix divide-by-zero error in fb_var_to_videomode() (Shile Zhang)

- fix 'WARNING in __alloc_pages_nodemask' bug (Jiufei Xue)

- list all PCI memory BARs as conflicting apertures (Gerd Hoffmann)

- update udlfb driver: fix sleeping inside spinlock, add mutex around
rendering calls and remove redundant code (Mikulas Patocka)

- update sm712fb driver: fix SM720 support related issues (Yifeng Li)

- update macfb driver: fix DAFB colour table pointer initialization
and remove redundant code (Finn Thain)

- update atafb driver: fix kexec support, use dev_*() calls instead
of printk() and remove obsolete module support (Geert Uytterhoeven)

- add support to mxsfb driver for skipping display initialization for
flicker-free display takeover from bootloader (Melchior Franz)

- remove Versatile and Nomadik board families support from amba-clcd
driver as they are handled by DRM driver nowadays (Linus Walleij)

- remove no longer needed AVR and platform_data support from
atmel_lcdfb driver (Alexandre Belloni)

- misc fixes (Colin Ian King, Julia Lawall, Gustavo A. R. Silva,
Aditya Pakki, Kangjie Lu, YueHaibing)

- misc cleanups (Enrico Weigelt, Kefeng Wang)"

* tag 'fbdev-v5.2' of git://github.com/bzolnier/linux: (38 commits)
video: fbdev: Use dev_get_drvdata()
fbcon: Don't reset logo_shown when logo is currently shown
video: fbdev: atmel_lcdfb: remove set but not used variable 'pdata'
video: fbdev: mxsfb: remove set but not used variable 'line_count'
video: fbdev: pvr2fb: remove set but not used variable 'size'
fbdev: fix WARNING in __alloc_pages_nodemask bug
video: amba-clcd: Decomission Versatile and Nomadik
fbdev: sm712fb: fix memory frequency by avoiding a switch/case fallthrough
fbdev: fix divide error in fb_var_to_videomode
fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display
fbdev: sm712fb: fix support for 1024x768-16 mode
fbdev: sm712fb: fix crashes and garbled display during DPMS modesetting
fbdev: sm712fb: fix crashes during framebuffer writes by correctly mapping VRAM
fbdev: sm712fb: fix boot screen glitch when sm712fb replaces VGA
fbdev: sm712fb: fix VRAM detection, don't set SR70/71/74/75
fbdev: sm712fb: fix brightness control on reboot, don't set SR30
fbdev: sm712fb: fix white screen of death on reboot, don't set CR3B-CR3F
video: imsttfb: fix potential NULL pointer dereferences
video: hgafb: fix potential NULL pointer dereference
fbdev: list all pci memory bars as conflicting apertures
...

drivers/video/fbdev/Kconfig

···
 	  device-aware may cause unexpected results. If unsure, say N.
 
 config FIRMWARE_EDID
-       bool "Enable firmware EDID"
-       depends on FB
-       ---help---
-         This enables access to the EDID transferred from the firmware.
-	 On the i386, this is from the Video BIOS. Enable this if DDC/I2C
-	 transfers do not work for your driver and if you are using
-	 nvidiafb, i810fb or savagefb.
+	bool "Enable firmware EDID"
+	depends on FB
+	---help---
+	  This enables access to the EDID transferred from the firmware.
+	  On the i386, this is from the Video BIOS. Enable this if DDC/I2C
+	  transfers do not work for your driver and if you are using
+	  nvidiafb, i810fb or savagefb.
 
-	 In general, choosing Y for this option is safe.  If you
-	 experience extremely long delays while booting before you get
-	 something on your display, try setting this to N.  Matrox cards in
-	 combination with certain motherboards and monitors are known to
-	 suffer from this problem.
+	  In general, choosing Y for this option is safe.  If you
+	  experience extremely long delays while booting before you get
+	  something on your display, try setting this to N.  Matrox cards in
+	  combination with certain motherboards and monitors are known to
+	  suffer from this problem.
 
 config FB_DDC
-       tristate
-       depends on FB
-       select I2C_ALGOBIT
-       select I2C
+	tristate
+	depends on FB
+	select I2C_ALGOBIT
+	select I2C
 
 config FB_BOOT_VESA_SUPPORT
 	bool
···
 endchoice
 
 config FB_SYS_FOPS
-       tristate
-       depends on FB
+	tristate
+	depends on FB
 
 config FB_DEFERRED_IO
 	bool
···
 	  cards.
 
 config FB_MACMODES
-       tristate
-       depends on FB
+	tristate
+	depends on FB
 
 config FB_BACKLIGHT
 	tristate
···
 	select BACKLIGHT_CLASS_DEVICE
 
 config FB_MODE_HELPERS
-        bool "Enable Video Mode Handling Helpers"
-        depends on FB
+	bool "Enable Video Mode Handling Helpers"
+	depends on FB
 	---help---
 	  This enables functions for handling video modes using the
 	  Generalized Timing Formula and the EDID parser. A few drivers rely
-          on this feature such as the radeonfb, rivafb, and the i810fb. If
+	  on this feature such as the radeonfb, rivafb, and the i810fb. If
 	  your driver does not take advantage of this feature, choosing Y will
 	  just increase the kernel size by about 5K.
 
 config FB_TILEBLITTING
-       bool "Enable Tile Blitting Support"
-       depends on FB
-       ---help---
-         This enables tile blitting.  Tile blitting is a drawing technique
-	 where the screen is divided into rectangular sections (tiles), whereas
-	 the standard blitting divides the screen into pixels. Because the
-	 default drawing element is a tile, drawing functions will be passed
-	 parameters in terms of number of tiles instead of number of pixels.
-	 For example, to draw a single character, instead of using bitmaps,
-	 an index to an array of bitmaps will be used.  To clear or move a
-	 rectangular section of a screen, the rectangle will be described in
-	 terms of number of tiles in the x- and y-axis.
+	bool "Enable Tile Blitting Support"
+	depends on FB
+	---help---
+	  This enables tile blitting.  Tile blitting is a drawing technique
+	  where the screen is divided into rectangular sections (tiles), whereas
+	  the standard blitting divides the screen into pixels. Because the
+	  default drawing element is a tile, drawing functions will be passed
+	  parameters in terms of number of tiles instead of number of pixels.
+	  For example, to draw a single character, instead of using bitmaps,
+	  an index to an array of bitmaps will be used.  To clear or move a
+	  rectangular section of a screen, the rectangle will be described in
+	  terms of number of tiles in the x- and y-axis.
 
-	 This is particularly important to one driver, matroxfb.  If
-	 unsure, say N.
+	  This is particularly important to one driver, matroxfb.  If
+	  unsure, say N.
 
 comment "Frame buffer hardware drivers"
 	depends on FB
···
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
 	---help---
-	This enables support for the SVGACTRL framebuffer in the GRLIB IP library from Aeroflex Gaisler.
+	  This enables support for the SVGACTRL framebuffer in the GRLIB IP library from Aeroflex Gaisler.
 
 config FB_CIRRUS
 	tristate "Cirrus Logic support"
···
 	  inserted into and removed from the running kernel), say M
 	  here and read <file:Documentation/kbuild/modules.txt>.  The module
 	  will be called amba-clcd.
-
-# Helper logic selected only by the ARM Versatile platform family.
-config PLAT_VERSATILE_CLCD
-	def_bool ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || ARCH_INTEGRATOR
-	depends on ARM
-	depends on FB_ARMCLCD && FB=y
-	select REGMAP
-	select MFD_SYSCON
 
 config FB_ACORN
 	bool "Acorn VIDC support"
···
 	  using the EFI framebuffer as your console.
 
 config FB_N411
-       tristate "N411 Apollo/Hecuba devkit support"
-       depends on FB && X86 && MMU
-       select FB_SYS_FILLRECT
-       select FB_SYS_COPYAREA
-       select FB_SYS_IMAGEBLIT
-       select FB_SYS_FOPS
-       select FB_DEFERRED_IO
-       select FB_HECUBA
-       help
-         This enables support for the Apollo display controller in its
-         Hecuba form using the n411 devkit.
+	tristate "N411 Apollo/Hecuba devkit support"
+	depends on FB && X86 && MMU
+	select FB_SYS_FILLRECT
+	select FB_SYS_COPYAREA
+	select FB_SYS_IMAGEBLIT
+	select FB_SYS_FOPS
+	select FB_DEFERRED_IO
+	select FB_HECUBA
+	help
+	  This enables support for the Apollo display controller in its
+	  Hecuba form using the n411 devkit.
 
 config FB_HGA
 	tristate "Hercules mono graphics support"
···
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
- 	help
+	help
 	  This is the frame buffer device driver for SGI Graphics Backend.
 	  This chip is used in SGI O2 and Visual Workstation 320/540.
 
···
 	  <http://vdc.epson.com/>
 
 config FB_ATMEL
-	tristate "AT91/AT32 LCD Controller support"
-	depends on FB && HAVE_FB_ATMEL
+	tristate "AT91 LCD Controller support"
+	depends on FB && OF && HAVE_FB_ATMEL
 	select FB_BACKLIGHT
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
···
 	select FB_MODE_HELPERS
 	select VIDEOMODE_HELPERS
 	help
-	  This enables support for the AT91/AT32 LCD Controller.
+	  This enables support for the AT91 LCD Controller.
 
 config FB_NVIDIA
 	tristate "nVidia Framebuffer Support"
···
 	  module will be called nvidiafb.
 
 config FB_NVIDIA_I2C
-       bool "Enable DDC Support"
-       depends on FB_NVIDIA
-       select FB_DDC
-       help
+	bool "Enable DDC Support"
+	depends on FB_NVIDIA
+	select FB_DDC
+	help
 	  This enables I2C support for nVidia Chipsets.  This is used
 	  only for getting EDID information from the attached display
 	  allowing for robust video mode handling and switching.
···
 	  module will be called rivafb.
 
 config FB_RIVA_I2C
-       bool "Enable DDC Support"
-       depends on FB_RIVA
-       select FB_DDC
-       help
+	bool "Enable DDC Support"
+	depends on FB_RIVA
+	select FB_DDC
+	help
 	  This enables I2C support for nVidia Chipsets.  This is used
 	  only for getting EDID information from the attached display
 	  allowing for robust video mode handling and switching.
···
 	select FB_CFB_IMAGEBLIT
 	select VGASTATE
 	help
-	  This driver supports the on-board graphics built in to the Intel 810 
-          and 815 chipsets.  Say Y if you have and plan to use such a board.
+	  This driver supports the on-board graphics built in to the Intel 810
+	  and 815 chipsets.  Say Y if you have and plan to use such a board.
 
-          To compile this driver as a module, choose M here: the
+	  To compile this driver as a module, choose M here: the
 	  module will be called i810fb.
 
-          For more information, please read 
+	  For more information, please read
 	  <file:Documentation/fb/intel810.txt>
 
 config FB_I810_GTF
 	bool "use VESA Generalized Timing Formula"
 	depends on FB_I810
 	help
-	  If you say Y, then the VESA standard, Generalized Timing Formula 
-          or GTF, will be used to calculate the required video timing values
-	  per video mode.  Since the GTF allows nondiscrete timings 
-          (nondiscrete being a range of values as opposed to discrete being a
-          set of values), you'll be able to use any combination of horizontal 
+	  If you say Y, then the VESA standard, Generalized Timing Formula
+	  or GTF, will be used to calculate the required video timing values
+	  per video mode.  Since the GTF allows nondiscrete timings
+	  (nondiscrete being a range of values as opposed to discrete being a
+	  set of values), you'll be able to use any combination of horizontal
 	  and vertical resolutions, and vertical refresh rates without having
 	  to specify your own timing parameters.  This is especially useful
-	  to maximize the performance of an aging display, or if you just 
-          have a display with nonstandard dimensions. A VESA compliant 
+	  to maximize the performance of an aging display, or if you just
+	  have a display with nonstandard dimensions. A VESA compliant
 	  monitor is recommended, but can still work with non-compliant ones.
-	  If you need or want this, then select this option. The timings may 
-	  not be compliant with Intel's recommended values. Use at your own 
+	  If you need or want this, then select this option. The timings may
+	  not be compliant with Intel's recommended values. Use at your own
 	  risk.
 
-          If you say N, the driver will revert to discrete video timings 
+	  If you say N, the driver will revert to discrete video timings
 	  using a set recommended by Intel in their documentation.
-  
-          If unsure, say N.
+
+	  If unsure, say N.
 
 config FB_I810_I2C
 	bool "Enable DDC Support"
···
 	depends on !DRM_I915
 	help
 	  This driver supports the on-board graphics built in to the Intel
-          830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/965G/965GM chipsets.
-          Say Y if you have and plan to use such a board.
+	  830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/965G/965GM chipsets.
+	  Say Y if you have and plan to use such a board.
 
 	  To make FB_INTEL=Y work you need to say AGP_INTEL=y too.
 
···
 	  G450/G550 secondary head and digital output are supported without
 	  additional modules.
 
-	  The driver starts in monitor mode. You must use the matroxset tool 
-	  (available at <ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/>) to 
-	  swap primary and secondary head outputs, or to change output mode.  
-	  Secondary head driver always start in 640x480 resolution and you 
+	  The driver starts in monitor mode. You must use the matroxset tool
+	  (available at <ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/>) to
+	  swap primary and secondary head outputs, or to change output mode.
+	  Secondary head driver always start in 640x480 resolution and you
 	  must use fbset to change it.
 
 	  Do not forget that second head supports only 16 and 32 bpp
···
 	select FB_DDC
 	default y
 	help
-	  Say Y here if you want DDC/I2C support for your Radeon board. 
+	  Say Y here if you want DDC/I2C support for your Radeon board.
 
 config FB_RADEON_BACKLIGHT
 	bool "Support for backlight control"
···
 	  will be called savagefb.
 
 config FB_SAVAGE_I2C
-       bool "Enable DDC2 Support"
-       depends on FB_SAVAGE
-       select FB_DDC
-       help
+	bool "Enable DDC2 Support"
+	depends on FB_SAVAGE
+	select FB_DDC
+	help
 	  This enables I2C support for S3 Savage Chipsets.  This is used
 	  only for getting EDID information from the attached display
 	  allowing for robust video mode handling and switching.
···
 	  here.
 
 config FB_SAVAGE_ACCEL
-       bool "Enable Console Acceleration"
-       depends on FB_SAVAGE
-       help
-          This option will compile in console acceleration support. If
-          the resulting framebuffer console has bothersome glitches, then
-          choose N here.
+	bool "Enable Console Acceleration"
+	depends on FB_SAVAGE
+	help
+	  This option will compile in console acceleration support. If
+	  the resulting framebuffer console has bothersome glitches, then
+	  choose N here.
 
 config FB_SIS
 	tristate "SiS/XGI display support"
···
 	  as XGI V3XT, V5, V8 and Z7.
 
 config FB_VIA
-       tristate "VIA UniChrome (Pro) and Chrome9 display support"
-       depends on FB && PCI && GPIOLIB && I2C && (X86 || COMPILE_TEST)
-       select FB_CFB_FILLRECT
-       select FB_CFB_COPYAREA
-       select FB_CFB_IMAGEBLIT
-       select I2C_ALGOBIT
-       help
+	tristate "VIA UniChrome (Pro) and Chrome9 display support"
+	depends on FB && PCI && GPIOLIB && I2C && (X86 || COMPILE_TEST)
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	select I2C_ALGOBIT
+	help
 	  This is the frame buffer device driver for Graphics chips of VIA
 	  UniChrome (Pro) Family (CLE266,PM800/CN400,P4M800CE/P4M800Pro/
 	  CN700/VN800,CX700/VX700,P4M890) and Chrome9 Family (K8M890,CN896
- 	  /P4M900,VX800)
+	  /P4M900,VX800)
 	  Say Y if you have a VIA UniChrome graphics board.
 
 	  To compile this driver as a module, choose M here: the
···
 	select VGASTATE
 	help
 	  This driver supports notebooks with NeoMagic PCI chips.
-	  Say Y if you have such a graphics card. 
+	  Say Y if you have such a graphics card.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called neofb.
···
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
 	---help---
-	  Say Y here if you have a 3Dfx Voodoo Graphics (Voodoo1/sst1) or 
+	  Say Y here if you have a 3Dfx Voodoo Graphics (Voodoo1/sst1) or
 	  Voodoo2 (cvg) based graphics card.
 
 	  To compile this driver as a module, choose M here: the
···
 config FB_PMAG_AA
 	tristate "PMAG-AA TURBOchannel framebuffer support"
 	depends on FB && TC
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	help
 	  Support for the PMAG-AA TURBOchannel framebuffer card (1280x1024x1)
 	  used mainly in the MIPS-based DECstation series.
···
 config FB_PMAG_BA
 	tristate "PMAG-BA TURBOchannel framebuffer support"
 	depends on FB && TC
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	help
 	  Support for the PMAG-BA TURBOchannel framebuffer card (1024x864x8)
 	  used mainly in the MIPS-based DECstation series.
···
 config FB_PMAGB_B
 	tristate "PMAGB-B TURBOchannel framebuffer support"
 	depends on FB && TC
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	help
 	  Support for the PMAGB-B TURBOchannel framebuffer card used mainly
 	  in the MIPS-based DECstation series. The card is currently only
···
 config FB_MAXINE
 	bool "Maxine (Personal DECstation) onboard framebuffer support"
 	depends on (FB = y) && MACH_DECSTATION
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	help
 	  Support for the onboard framebuffer (1024x768x8) in the Personal
 	  DECstation series (Personal DECstation 5000/20, /25, /33, /50,
···
 config FB_G364
 	bool "G364 frame buffer support"
 	depends on (FB = y) && (MIPS_MAGNUM_4000 || OLIVETTI_M700)
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	help
 	  The G364 driver is the framebuffer used in MIPS Magnum 4000 and
 	  Olivetti M700-10 systems.
···
 config FB_68328
 	bool "Motorola 68328 native frame buffer support"
 	depends on (FB = y) && (M68328 || M68EZ328 || M68VZ328)
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	help
 	  Say Y here if you want to support the built-in frame buffer of
 	  the Motorola 68328 CPU family.
···
 	  Accelerator
 
 config FB_MBX_DEBUG
-       bool "Enable debugging info via debugfs"
-       depends on FB_MBX && DEBUG_FS
-       ---help---
-         Enable this if you want debugging information using the debug
-         filesystem (debugfs)
+	bool "Enable debugging info via debugfs"
+	depends on FB_MBX && DEBUG_FS
+	---help---
+	  Enable this if you want debugging information using the debug
+	  filesystem (debugfs)
 
-         If unsure, say N.
+	  If unsure, say N.
 
 config FB_FSL_DIU
 	tristate "Freescale DIU framebuffer support"
···
 config FB_W100
 	tristate "W100 frame buffer support"
 	depends on FB && ARCH_PXA
- 	select FB_CFB_FILLRECT
- 	select FB_CFB_COPYAREA
- 	select FB_CFB_IMAGEBLIT
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	---help---
 	  Frame buffer driver for the w100 as found on the Sharp SL-Cxx series.
 	  It can also drive the w3220 chip found on iPAQ hx4700.
···
 	  Currently the support is only for the S3C6400 and S3C6410 SoCs.
 
 config FB_S3C_DEBUG_REGWRITE
-       bool "Debug register writes"
-       depends on FB_S3C
-       ---help---
-         Show all register writes via pr_debug()
+	bool "Debug register writes"
+	depends on FB_S3C
+	---help---
+	  Show all register writes via pr_debug()
 
 config FB_S3C2410
 	tristate "S3C2410 LCD framebuffer support"
···
 	  through sysfs
 
 config FB_NUC900
-        tristate "NUC900 LCD framebuffer support"
-        depends on FB && ARCH_W90X900
-        select FB_CFB_FILLRECT
-        select FB_CFB_COPYAREA
-        select FB_CFB_IMAGEBLIT
-        ---help---
-          Frame buffer driver for the built-in LCD controller in the Nuvoton
-          NUC900 processor
+	tristate "NUC900 LCD framebuffer support"
+	depends on FB && ARCH_W90X900
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	---help---
+	  Frame buffer driver for the built-in LCD controller in the Nuvoton
+	  NUC900 processor
 
 config GPM1040A0_320X240
-        bool "Giantplus Technology GPM1040A0 320x240 Color TFT LCD"
-        depends on FB_NUC900
+	bool "Giantplus Technology GPM1040A0 320x240 Color TFT LCD"
+	depends on FB_NUC900
 
 config FB_SM501
 	tristate "Silicon Motion SM501 framebuffer support"
···
 
 config FB_PRE_INIT_FB
 	bool "Don't reinitialize, use bootloader's GDC/Display configuration"
-	depends on FB && FB_MB862XX_LIME
+	depends on FB && (FB_MB862XX_LIME || FB_MXS)
 	---help---
 	  Select this option if display contents should be inherited as set by
 	  the bootloader.

drivers/video/fbdev/Makefile

···
 obj-$(CONFIG_FB_PVR2)             += pvr2fb.o
 obj-$(CONFIG_FB_VOODOO1)          += sstfb.o
 obj-$(CONFIG_FB_ARMCLCD)	  += amba-clcd.o
-obj-$(CONFIG_ARCH_NOMADIK)	  += amba-clcd-nomadik.o
-obj-$(CONFIG_PLAT_VERSATILE_CLCD) += amba-clcd-versatile.o
 obj-$(CONFIG_FB_GOLDFISH)         += goldfishfb.o
 obj-$(CONFIG_FB_68328)            += 68328fb.o
 obj-$(CONFIG_FB_GBE)              += gbefb.o

drivers/video/fbdev/amba-clcd-nomadik.c

···
-#include <linux/amba/bus.h>
-#include <linux/amba/clcd.h>
-#include <linux/gpio/consumer.h>
-#include <linux/of.h>
-#include <linux/of_graph.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-#include <linux/mfd/syscon.h>
-#include <linux/regmap.h>
-
-#include "amba-clcd-nomadik.h"
-
-static struct gpio_desc *grestb;
-static struct gpio_desc *scen;
-static struct gpio_desc *scl;
-static struct gpio_desc *sda;
-
-static u8 tpg110_readwrite_reg(bool write, u8 address, u8 outval)
-{
-	int i;
-	u8 inval = 0;
-
-	/* Assert SCEN */
-	gpiod_set_value_cansleep(scen, 1);
-	ndelay(150);
-	/* Hammer out the address */
-	for (i = 5; i >= 0; i--) {
-		if (address & BIT(i))
-			gpiod_set_value_cansleep(sda, 1);
-		else
-			gpiod_set_value_cansleep(sda, 0);
-		ndelay(150);
-		/* Send an SCL pulse */
-		gpiod_set_value_cansleep(scl, 1);
-		ndelay(160);
-		gpiod_set_value_cansleep(scl, 0);
-		ndelay(160);
-	}
-
-	if (write) {
-		/* WRITE */
-		gpiod_set_value_cansleep(sda, 0);
-	} else {
-		/* READ */
-		gpiod_set_value_cansleep(sda, 1);
-	}
-	ndelay(150);
-	/* Send an SCL pulse */
-	gpiod_set_value_cansleep(scl, 1);
-	ndelay(160);
-	gpiod_set_value_cansleep(scl, 0);
-	ndelay(160);
-
-	if (!write)
-		/* HiZ turn-around cycle */
-		gpiod_direction_input(sda);
-	ndelay(150);
-	/* Send an SCL pulse */
-	gpiod_set_value_cansleep(scl, 1);
-	ndelay(160);
-	gpiod_set_value_cansleep(scl, 0);
-	ndelay(160);
-
-	/* Hammer in/out the data */
-	for (i = 7; i >= 0; i--) {
-		int value;
-
-		if (write) {
-			value = !!(outval & BIT(i));
-			gpiod_set_value_cansleep(sda, value);
-		} else {
-			value = gpiod_get_value(sda);
-			if (value)
-				inval |= BIT(i);
-		}
-		ndelay(150);
-		/* Send an SCL pulse */
-		gpiod_set_value_cansleep(scl, 1);
-		ndelay(160);
-		gpiod_set_value_cansleep(scl, 0);
-		ndelay(160);
-	}
-
-	gpiod_direction_output(sda, 0);
-	/* Deassert SCEN */
-	gpiod_set_value_cansleep(scen, 0);
-	/* Satisfies SCEN pulse width */
-	udelay(1);
-
-	return inval;
-}
-
-static u8 tpg110_read_reg(u8 address)
-{
-	return tpg110_readwrite_reg(false, address, 0);
-}
-
-static void tpg110_write_reg(u8 address, u8 outval)
-{
-	tpg110_readwrite_reg(true, address, outval);
-}
-
-static void tpg110_startup(struct device *dev)
-{
-	u8 val;
-
-	dev_info(dev, "TPG110 display enable\n");
-	/* De-assert the reset signal */
-	gpiod_set_value_cansleep(grestb, 0);
-	mdelay(1);
-	dev_info(dev, "de-asserted GRESTB\n");
-
-	/* Test display communication */
-	tpg110_write_reg(0x00, 0x55);
-	val = tpg110_read_reg(0x00);
-	if (val == 0x55)
-		dev_info(dev, "passed communication test\n");
-	val = tpg110_read_reg(0x01);
-	dev_info(dev, "TPG110 chip ID: %d version: %d\n",
-		val>>4, val&0x0f);
-
-	/* Show display resolution */
-	val = tpg110_read_reg(0x02);
-	val &= 7;
-	switch (val) {
-	case 0x0:
-		dev_info(dev, "IN 400x240 RGB -> OUT 800x480 RGB (dual scan)");
-		break;
-	case 0x1:
-		dev_info(dev, "IN 480x272 RGB -> OUT 800x480 RGB (dual scan)");
-		break;
-	case 0x4:
-		dev_info(dev, "480x640 RGB");
-		break;
-	case 0x5:
-		dev_info(dev, "480x272 RGB");
-		break;
-	case 0x6:
-		dev_info(dev, "640x480 RGB");
-		break;
-	case 0x7:
-		dev_info(dev, "800x480 RGB");
-		break;
-	default:
-		dev_info(dev, "ILLEGAL RESOLUTION");
-		break;
-	}
-
-	val = tpg110_read_reg(0x03);
-	dev_info(dev, "resolution is controlled by %s\n",
-		(val & BIT(7)) ? "software" : "hardware");
-}
-
-static void tpg110_enable(struct clcd_fb *fb)
-{
-	struct device *dev = &fb->dev->dev;
-	static bool startup;
-	u8 val;
-
-	if (!startup) {
-		tpg110_startup(dev);
-		startup = true;
-	}
-
-	/* Take chip out of standby */
-	val = tpg110_read_reg(0x03);
-	val |= BIT(0);
-	tpg110_write_reg(0x03, val);
-}
-
-static void tpg110_disable(struct clcd_fb *fb)
-{
-	u8 val;
-
-	dev_info(&fb->dev->dev, "TPG110 display disable\n");
-	val = tpg110_read_reg(0x03);
-	/* Put into standby */
-	val &= ~BIT(0);
-	tpg110_write_reg(0x03, val);
-}
-
-static void tpg110_init(struct device *dev, struct device_node *np,
-			struct clcd_board *board)
-{
-	dev_info(dev, "TPG110 display init\n");
-
-	/* This asserts the GRESTB signal, putting the display into reset */
-	grestb = devm_fwnode_get_gpiod_from_child(dev, "grestb", &np->fwnode,
-						  GPIOD_OUT_HIGH, "grestb");
-	if (IS_ERR(grestb)) {
-		dev_err(dev, "no GRESTB GPIO\n");
-		return;
-	}
-	scen = devm_fwnode_get_gpiod_from_child(dev, "scen", &np->fwnode,
-						GPIOD_OUT_LOW, "scen");
-	if (IS_ERR(scen)) {
-		dev_err(dev, "no SCEN GPIO\n");
-		return;
-	}
-	scl = devm_fwnode_get_gpiod_from_child(dev, "scl", &np->fwnode,
-					       GPIOD_OUT_LOW, "scl");
-	if (IS_ERR(scl)) {
-		dev_err(dev, "no SCL GPIO\n");
-		return;
-	}
-	sda = devm_fwnode_get_gpiod_from_child(dev, "sda", &np->fwnode,
-					       GPIOD_OUT_LOW, "sda");
-	if (IS_ERR(sda)) {
-		dev_err(dev, "no SDA GPIO\n");
-		return;
-	}
-	board->enable = tpg110_enable;
-	board->disable = tpg110_disable;
-}
-
-int nomadik_clcd_init_panel(struct clcd_fb *fb, struct device_node *panel)
-{
-	if (of_device_is_compatible(panel, "tpo,tpg110"))
-		tpg110_init(&fb->dev->dev, panel, fb->board);
-	else
-		dev_info(&fb->dev->dev, "unknown panel\n");
-
-	/* Unknown panel, fall through */
-	return 0;
-}
-EXPORT_SYMBOL_GPL(nomadik_clcd_init_panel);
-
-#define PMU_CTRL_OFFSET 0x0000
-#define PMU_CTRL_LCDNDIF BIT(26)
-
-int nomadik_clcd_init_board(struct amba_device *adev,
-			    struct clcd_board *board)
-{
-	struct regmap *pmu_regmap;
-
-	dev_info(&adev->dev, "Nomadik CLCD board init\n");
-	pmu_regmap =
-		syscon_regmap_lookup_by_compatible("stericsson,nomadik-pmu");
-	if (IS_ERR(pmu_regmap)) {
-		dev_err(&adev->dev, "could not find PMU syscon regmap\n");
-		return PTR_ERR(pmu_regmap);
-	}
-	regmap_update_bits(pmu_regmap,
-			   PMU_CTRL_OFFSET,
-			   PMU_CTRL_LCDNDIF,
-			   0);
-	dev_info(&adev->dev, "set PMU mux to CLCD mode\n");
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(nomadik_clcd_init_board);

drivers/video/fbdev/amba-clcd-nomadik.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _AMBA_CLCD_NOMADIK_H
-#define _AMBA_CLCD_NOMADIK_H
-
-#include <linux/amba/bus.h>
-
-#ifdef CONFIG_ARCH_NOMADIK
-int nomadik_clcd_init_board(struct amba_device *adev,
-			     struct clcd_board *board);
-int nomadik_clcd_init_panel(struct clcd_fb *fb, struct device_node *panel);
-#else
-static inline int nomadik_clcd_init_board(struct amba_device *adev,
-					  struct clcd_board *board)
-{
-	return 0;
-}
-static inline int nomadik_clcd_init_panel(struct clcd_fb *fb,
-					  struct device_node *panel)
-{
-	return 0;
-}
-#endif
-
-#endif /* inclusion guard */

drivers/video/fbdev/amba-clcd-versatile.c

···
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/clcd.h>
-#include <linux/platform_data/video-clcd-versatile.h>
-#include <linux/of.h>
-#include <linux/of_graph.h>
-#include <linux/regmap.h>
-#include <linux/mfd/syscon.h>
-#include <linux/bitops.h>
-#include "amba-clcd-versatile.h"
-
-static struct clcd_panel vga = {
-	.mode		= {
-		.name		= "VGA",
-		.refresh	= 60,
-		.xres		= 640,
-		.yres		= 480,
-		.pixclock	= 39721,
-		.left_margin	= 40,
-		.right_margin	= 24,
-		.upper_margin	= 32,
-		.lower_margin	= 11,
-		.hsync_len	= 96,
-		.vsync_len	= 2,
-		.sync		= 0,
-		.vmode		= FB_VMODE_NONINTERLACED,
-	},
-	.width		= -1,
-	.height		= -1,
-	.tim2		= TIM2_BCD | TIM2_IPC,
-	.cntl		= CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
-	.caps		= CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
-	.bpp		= 16,
-};
-
-static struct clcd_panel xvga = {
-	.mode		= {
-		.name		= "XVGA",
-		.refresh	= 60,
-		.xres		= 1024,
-		.yres		= 768,
-		.pixclock	= 15748,
-		.left_margin	= 152,
-		.right_margin	= 48,
-		.upper_margin	= 23,
-		.lower_margin	= 3,
-		.hsync_len	= 104,
-		.vsync_len	= 4,
-		.sync		= 0,
-		.vmode		= FB_VMODE_NONINTERLACED,
-	},
-	.width		= -1,
-	.height		= -1,
-	.tim2		= TIM2_BCD | TIM2_IPC,
-	.cntl		= CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
-	.caps		= CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
-	.bpp		= 16,
-};
-
-/* Sanyo TM38QV67A02A - 3.8 inch QVGA (320x240) Color TFT */
-static struct clcd_panel sanyo_tm38qv67a02a = {
-	.mode		= {
-		.name		= "Sanyo TM38QV67A02A",
-		.refresh	= 116,
-		.xres		= 320,
-		.yres		= 240,
-		.pixclock	= 100000,
-		.left_margin	= 6,
-		.right_margin	= 6,
-		.upper_margin	= 5,
-		.lower_margin	= 5,
-		.hsync_len	= 6,
-		.vsync_len	= 6,
-		.sync		= 0,
-		.vmode		= FB_VMODE_NONINTERLACED,
-	},
-	.width		= -1,
-	.height		= -1,
-	.tim2		= TIM2_BCD,
-	.cntl		= CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
-	.caps		= CLCD_CAP_5551,
-	.bpp		= 16,
-};
-
-static struct clcd_panel sanyo_2_5_in = {
-	.mode		= {
-		.name		= "Sanyo QVGA Portrait",
-		.refresh	= 116,
-		.xres		= 240,
-		.yres		= 320,
-		.pixclock	= 100000,
-		.left_margin	= 20,
-		.right_margin	= 10,
-		.upper_margin	= 2,
-		.lower_margin	= 2,
-		.hsync_len	= 10,
-		.vsync_len	= 2,
-		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-		.vmode		= FB_VMODE_NONINTERLACED,
-	},
-	.width		= -1,
-	.height		= -1,
-	.tim2		= TIM2_IVS | TIM2_IHS | TIM2_IPC,
-	.cntl		= CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
-	.caps		= CLCD_CAP_5551,
-	.bpp		= 16,
-};
-
-/* Epson L2F50113T00 - 2.2 inch 176x220 Color TFT */
-static struct clcd_panel epson_l2f50113t00 = {
-	.mode		= {
-		.name		= "Epson L2F50113T00",
-		.refresh	= 390,
-		.xres		= 176,
-		.yres		= 220,
-		.pixclock	= 62500,
-		.left_margin	= 3,
-		.right_margin	= 2,
-		.upper_margin	= 1,
-		.lower_margin	= 0,
-		.hsync_len	= 3,
-		.vsync_len	= 2,
-		.sync		= 0,
-		.vmode		= FB_VMODE_NONINTERLACED,
-	},
-	.width		= -1,
-	.height		= -1,
-	.tim2		= TIM2_BCD | TIM2_IPC,
-	.cntl		= CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
-	.caps		= CLCD_CAP_5551,
-	.bpp		= 16,
-};
-
-static struct clcd_panel *panels[] = {
-	&vga,
-	&xvga,
-	&sanyo_tm38qv67a02a,
-	&sanyo_2_5_in,
-	&epson_l2f50113t00,
-};
-
-struct clcd_panel *versatile_clcd_get_panel(const char *name)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(panels); i++)
-		if (strcmp(panels[i]->mode.name, name) == 0)
-			break;
-
-	if (i < ARRAY_SIZE(panels))
-		return panels[i];
-
-	pr_err("CLCD: couldn't get parameters for panel %s\n", name);
-
-	return NULL;
-}
-
-int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned long framesize)
-{
-	dma_addr_t dma;
-
-	fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, framesize, &dma,
-					  GFP_KERNEL);
-	if (!fb->fb.screen_base) {
-		pr_err("CLCD: unable to map framebuffer\n");
-		return -ENOMEM;
-	}
-
-	fb->fb.fix.smem_start	= dma;
-	fb->fb.fix.smem_len	= framesize;
-
-	return 0;
-}
-
-int versatile_clcd_mmap_dma(struct clcd_fb *fb, struct vm_area_struct *vma)
-{
-	return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
-			   fb->fb.fix.smem_start, fb->fb.fix.smem_len);
-}
-
-void versatile_clcd_remove_dma(struct clcd_fb *fb)
-{
-	dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
-		    fb->fb.fix.smem_start);
-}
-
-#ifdef CONFIG_OF
-
-static struct regmap *versatile_syscon_map;
-static struct regmap *versatile_ib2_map;
-
-/*
- * We detect the different syscon types from the compatible strings.
- */
-enum versatile_clcd {
-	INTEGRATOR_CLCD_CM,
-	VERSATILE_CLCD,
-	REALVIEW_CLCD_EB,
-	REALVIEW_CLCD_PB1176,
-	REALVIEW_CLCD_PB11MP,
-	REALVIEW_CLCD_PBA8,
-	REALVIEW_CLCD_PBX,
-};
-
-static const struct of_device_id versatile_clcd_of_match[] = {
-	{
-		.compatible = "arm,core-module-integrator",
-		.data = (void *)INTEGRATOR_CLCD_CM,
-	},
-	{
-		.compatible = "arm,versatile-sysreg",
-		.data = (void *)VERSATILE_CLCD,
-	},
-	{
-		.compatible = "arm,realview-eb-syscon",
-		.data = (void *)REALVIEW_CLCD_EB,
-	},
-	{
-		.compatible = "arm,realview-pb1176-syscon",
-		.data = (void *)REALVIEW_CLCD_PB1176,
-	},
-	{
-		.compatible = "arm,realview-pb11mp-syscon",
-		.data = (void *)REALVIEW_CLCD_PB11MP,
-	},
-	{
-		.compatible = "arm,realview-pba8-syscon",
-		.data = (void *)REALVIEW_CLCD_PBA8,
-	},
-	{
-		.compatible = "arm,realview-pbx-syscon",
-		.data = (void *)REALVIEW_CLCD_PBX,
-	},
-	{},
-};
-
-/*
- * Core module CLCD control on the Integrator/CP, bits
- * 8 thru 19 of the CM_CONTROL register controls a bunch
- * of CLCD settings.
- */
-#define INTEGRATOR_HDR_CTRL_OFFSET	0x0C
-#define INTEGRATOR_CLCD_LCDBIASEN	BIT(8)
-#define INTEGRATOR_CLCD_LCDBIASUP	BIT(9)
-#define INTEGRATOR_CLCD_LCDBIASDN	BIT(10)
-/* Bits 11,12,13 controls the LCD type */
-#define INTEGRATOR_CLCD_LCDMUX_MASK	(BIT(11)|BIT(12)|BIT(13))
-#define INTEGRATOR_CLCD_LCDMUX_LCD24	BIT(11)
-#define INTEGRATOR_CLCD_LCDMUX_VGA565	BIT(12)
-#define INTEGRATOR_CLCD_LCDMUX_SHARP	(BIT(11)|BIT(12))
-#define INTEGRATOR_CLCD_LCDMUX_VGA555	BIT(13)
-#define INTEGRATOR_CLCD_LCDMUX_VGA24	(BIT(11)|BIT(12)|BIT(13))
-#define INTEGRATOR_CLCD_LCD0_EN		BIT(14)
-#define INTEGRATOR_CLCD_LCD1_EN		BIT(15)
-/* R/L flip on Sharp */
-#define INTEGRATOR_CLCD_LCD_STATIC1	BIT(16)
-/* U/D flip on Sharp */
-#define INTEGRATOR_CLCD_LCD_STATIC2	BIT(17)
-/* No connection on Sharp */
-#define INTEGRATOR_CLCD_LCD_STATIC	BIT(18)
-/* 0 = 24bit VGA, 1 = 18bit VGA */
-#define INTEGRATOR_CLCD_LCD_N24BITEN	BIT(19)
-
-#define INTEGRATOR_CLCD_MASK		(INTEGRATOR_CLCD_LCDBIASEN | \
-					 INTEGRATOR_CLCD_LCDBIASUP | \
-					 INTEGRATOR_CLCD_LCDBIASDN | \
-					 INTEGRATOR_CLCD_LCDMUX_MASK | \
-					 INTEGRATOR_CLCD_LCD0_EN | \
-					 INTEGRATOR_CLCD_LCD1_EN | \
-					 INTEGRATOR_CLCD_LCD_STATIC1 | \
-					 INTEGRATOR_CLCD_LCD_STATIC2 | \
-					 INTEGRATOR_CLCD_LCD_STATIC | \
-					 INTEGRATOR_CLCD_LCD_N24BITEN)
-
-static void integrator_clcd_enable(struct clcd_fb *fb)
-{
-	struct fb_var_screeninfo *var = &fb->fb.var;
-	u32 val;
-
-	dev_info(&fb->dev->dev, "enable Integrator CLCD connectors\n");
-
-	/* FIXME: really needed? */
-	val = INTEGRATOR_CLCD_LCD_STATIC1 | INTEGRATOR_CLCD_LCD_STATIC2 |
-		INTEGRATOR_CLCD_LCD0_EN | INTEGRATOR_CLCD_LCD1_EN;
-	if (var->bits_per_pixel <= 8 ||
-	    (var->bits_per_pixel == 16 && var->green.length == 5))
-		/* Pseudocolor, RGB555, BGR555 */
-		val |= INTEGRATOR_CLCD_LCDMUX_VGA555;
-	else if (fb->fb.var.bits_per_pixel <= 16)
-		/* truecolor RGB565 */
-		val |= INTEGRATOR_CLCD_LCDMUX_VGA565;
-	else
-		val = 0; /* no idea for this, don't trust the docs */
-
-	regmap_update_bits(versatile_syscon_map,
-			   INTEGRATOR_HDR_CTRL_OFFSET,
-			   INTEGRATOR_CLCD_MASK,
-			   val);
-}
-
-/*
- * This configuration register in the Versatile and RealView
- * family is uniformly present but appears more and more
- * unutilized starting with the RealView series.
- */
-#define SYS_CLCD			0x50
-#define SYS_CLCD_MODE_MASK		(BIT(0)|BIT(1))
-#define SYS_CLCD_MODE_888		0
-#define SYS_CLCD_MODE_5551		BIT(0)
-#define SYS_CLCD_MODE_565_R_LSB		BIT(1)
-#define SYS_CLCD_MODE_565_B_LSB		(BIT(0)|BIT(1))
-#define SYS_CLCD_CONNECTOR_MASK		(BIT(2)|BIT(3)|BIT(4)|BIT(5))
-#define SYS_CLCD_NLCDIOON		BIT(2)
-#define SYS_CLCD_VDDPOSSWITCH		BIT(3)
-#define SYS_CLCD_PWR3V5SWITCH		BIT(4)
-#define SYS_CLCD_VDDNEGSWITCH		BIT(5)
-#define SYS_CLCD_TSNSS			BIT(6) /* touchscreen enable */
-#define SYS_CLCD_SSPEXP			BIT(7) /* SSP expansion enable */
-
-/* The Versatile can detect the connected panel type */
-#define SYS_CLCD_CLCDID_MASK		(BIT(8)|BIT(9)|BIT(10)|BIT(11)|BIT(12))
-#define SYS_CLCD_ID_SANYO_3_8		(0x00 << 8)
-#define SYS_CLCD_ID_SHARP_8_4		(0x01 << 8)
-#define SYS_CLCD_ID_EPSON_2_2		(0x02 << 8)
-#define SYS_CLCD_ID_SANYO_2_5		(0x07 << 8)
-#define SYS_CLCD_ID_VGA			(0x1f << 8)
-
-#define SYS_CLCD_TSNDAV			BIT(13) /* data ready from TS */
-
-/* IB2 control register for the Versatile daughterboard */
-#define IB2_CTRL			0x00
-#define IB2_CTRL_LCD_SD			BIT(1) /* 1 = shut down LCD */
-#define IB2_CTRL_LCD_BL_ON		BIT(0)
-#define IB2_CTRL_LCD_MASK		(BIT(0)|BIT(1))
-
-static void versatile_clcd_disable(struct clcd_fb *fb)
-{
-	dev_info(&fb->dev->dev, "disable Versatile CLCD connectors\n");
-	regmap_update_bits(versatile_syscon_map,
-			   SYS_CLCD,
-			   SYS_CLCD_CONNECTOR_MASK,
-			   0);
-
-	/* If we're on an IB2 daughterboard, turn off display */
-	if (versatile_ib2_map) {
-		dev_info(&fb->dev->dev, "disable IB2 display\n");
-		regmap_update_bits(versatile_ib2_map,
-				   IB2_CTRL,
-				   IB2_CTRL_LCD_MASK,
-				   IB2_CTRL_LCD_SD);
-	}
-}
-
-static void versatile_clcd_enable(struct clcd_fb *fb)
-{
-	struct fb_var_screeninfo *var = &fb->fb.var;
-	u32 val = 0;
-
-	dev_info(&fb->dev->dev, "enable Versatile CLCD connectors\n");
-	switch (var->green.length) {
-	case 5:
-		val |= SYS_CLCD_MODE_5551;
-		break;
-	case 6:
-		if (var->red.offset == 0)
-			val |= SYS_CLCD_MODE_565_R_LSB;
-		else
-			val |= SYS_CLCD_MODE_565_B_LSB;
-		break;
-	case 8:
-		val |= SYS_CLCD_MODE_888;
-		break;
-	}
-
-	/* Set up the MUX */
-	regmap_update_bits(versatile_syscon_map,
-			   SYS_CLCD,
-			   SYS_CLCD_MODE_MASK,
-			   val);
-
-	/* Then enable the display */
-	regmap_update_bits(versatile_syscon_map,
-			   SYS_CLCD,
-			   SYS_CLCD_CONNECTOR_MASK,
-			   SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH);
-
-	/* If we're on an IB2 daughterboard, turn on display */
-	if (versatile_ib2_map) {
-		dev_info(&fb->dev->dev, "enable IB2 display\n");
-		regmap_update_bits(versatile_ib2_map,
-				   IB2_CTRL,
-				   IB2_CTRL_LCD_MASK,
-				   IB2_CTRL_LCD_BL_ON);
-	}
-}
-
-static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs)
-{
-	clcdfb_decode(fb, regs);
-
-	/* Always clear BGR for RGB565: we do the routing externally */
-	if (fb->fb.var.green.length == 6)
-		regs->cntl &= ~CNTL_BGR;
-}
-
-static void realview_clcd_disable(struct clcd_fb *fb)
-{
-	dev_info(&fb->dev->dev, "disable RealView CLCD connectors\n");
-	regmap_update_bits(versatile_syscon_map,
-			   SYS_CLCD,
-			   SYS_CLCD_CONNECTOR_MASK,
-			   0);
-}
-
-static void realview_clcd_enable(struct clcd_fb *fb)
-{
-	dev_info(&fb->dev->dev, "enable RealView CLCD connectors\n");
-	regmap_update_bits(versatile_syscon_map,
-			   SYS_CLCD,
-			   SYS_CLCD_CONNECTOR_MASK,
-			   SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH);
-}
-
-struct versatile_panel {
-	u32 id;
-	char *compatible;
-	bool ib2;
-};
-
-static const struct versatile_panel versatile_panels[] = {
-	{
-		.id = SYS_CLCD_ID_VGA,
-		.compatible = "VGA",
-	},
-	{
-		.id = SYS_CLCD_ID_SANYO_3_8,
-		.compatible = "sanyo,tm38qv67a02a",
-	},
-	{
-		.id = SYS_CLCD_ID_SHARP_8_4,
-		.compatible = "sharp,lq084v1dg21",
-	},
-	{
-		.id = SYS_CLCD_ID_EPSON_2_2,
-		.compatible = "epson,l2f50113t00",
-	},
-	{
-		.id = SYS_CLCD_ID_SANYO_2_5,
-		.compatible = "sanyo,alr252rgt",
-		.ib2 = true,
-	},
-};
-
-static void versatile_panel_probe(struct device *dev, struct device_node *panel)
-{
-	struct versatile_panel const *vpanel = NULL;
-	u32 val;
-	int ret;
-	int i;
-
-	/*
-	 * The Versatile CLCD has a panel auto-detection mechanism.
-	 * We use this and look for the compatible panel in the
-	 * device tree.
-	 */
-	ret = regmap_read(versatile_syscon_map, SYS_CLCD, &val);
-	if (ret) {
-		dev_err(dev, "cannot read CLCD syscon register\n");
-		return;
-	}
-	val &= SYS_CLCD_CLCDID_MASK;
-
-	/* First find corresponding panel information */
-	for (i = 0; i < ARRAY_SIZE(versatile_panels); i++) {
-		vpanel = &versatile_panels[i];
-
-		if (val == vpanel->id) {
-			dev_err(dev, "autodetected panel \"%s\"\n",
-				vpanel->compatible);
-			break;
-		}
-	}
-	if (i == ARRAY_SIZE(versatile_panels)) {
-		dev_err(dev, "could not auto-detect panel\n");
-		return;
-	}
-
-	if (!of_device_is_compatible(panel, vpanel->compatible))
-		dev_err(dev, "panel in DT is not compatible with the "
-			"auto-detected panel, continuing anyway\n");
-
-	/*
-	 * If we have a Sanyo 2.5" port
-	 * that we're running on an IB2 and proceed to look for the
-	 * IB2 syscon regmap.
-	 */
-	if (!vpanel->ib2)
-		return;
-
-	versatile_ib2_map = syscon_regmap_lookup_by_compatible(
-		"arm,versatile-ib2-syscon");
-	if (IS_ERR(versatile_ib2_map)) {
-		dev_err(dev, "could not locate IB2 control register\n");
-		versatile_ib2_map = NULL;
-		return;
-	}
-}
-
-int versatile_clcd_init_panel(struct clcd_fb *fb, struct device_node *panel)
-{
-	const struct of_device_id *clcd_id;
-	enum versatile_clcd versatile_clcd_type;
-	struct device_node *np;
-	struct regmap *map;
-	struct device *dev = &fb->dev->dev;
-
-	np = of_find_matching_node_and_match(NULL, versatile_clcd_of_match,
-					     &clcd_id);
-	if (!np) {
-		/* Vexpress does not have this */
-		return 0;
-	}
-	versatile_clcd_type = (enum versatile_clcd)clcd_id->data;
-
-	map = syscon_node_to_regmap(np);
-	if (IS_ERR(map)) {
-		dev_err(dev, "no Versatile syscon regmap\n");
-		return PTR_ERR(map);
-	}
-
-	switch (versatile_clcd_type) {
-	case INTEGRATOR_CLCD_CM:
-		versatile_syscon_map = map;
-		fb->board->enable = integrator_clcd_enable;
-		/* Override the caps, we have only these */
-		fb->board->caps = CLCD_CAP_5551 | CLCD_CAP_RGB565 |
-			CLCD_CAP_888;
-		dev_info(dev, "set up callbacks for Integrator PL110\n");
-		break;
-	case VERSATILE_CLCD:
-		versatile_syscon_map = map;
-		fb->board->enable = versatile_clcd_enable;
-		fb->board->disable = versatile_clcd_disable;
-		fb->board->decode = versatile_clcd_decode;
-		versatile_panel_probe(dev, panel);
-		dev_info(dev, "set up callbacks for Versatile\n");
-		break;
-	case REALVIEW_CLCD_EB:
-	case REALVIEW_CLCD_PB1176:
-	case REALVIEW_CLCD_PB11MP:
-	case REALVIEW_CLCD_PBA8:
-	case REALVIEW_CLCD_PBX:
-		versatile_syscon_map = map;
-		fb->board->enable = realview_clcd_enable;
-		fb->board->disable = realview_clcd_disable;
-		dev_info(dev, "set up callbacks for RealView PL111\n");
-		break;
-	default:
-		dev_info(dev, "unknown Versatile system controller\n");
-		break;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(versatile_clcd_init_panel);
-#endif

drivers/video/fbdev/amba-clcd-versatile.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Special local versatile callbacks
- */
-#include <linux/of.h>
-#include <linux/amba/bus.h>
-#include <linux/platform_data/video-clcd-versatile.h>
-
-#if defined(CONFIG_PLAT_VERSATILE_CLCD) && defined(CONFIG_OF)
-int versatile_clcd_init_panel(struct clcd_fb *fb, struct device_node *panel);
-#else
-static inline int versatile_clcd_init_panel(struct clcd_fb *fb,
-					    struct device_node *panel)
-{
-	return 0;
-}
-#endif

drivers/video/fbdev/amba-clcd.c

···
 #include <video/of_display_timing.h>
 #include <video/videomode.h>
 
-#include "amba-clcd-nomadik.h"
-#include "amba-clcd-versatile.h"
-
 #define to_clcd(info)	container_of(info, struct clcd_fb, fb)
 
 /* This is limited to 16 characters when displayed by X startup */
···
 			var->blue.length = 4;
 		}
 		break;
-	case 24:
-		if (fb->vendor->packed_24_bit_pixels) {
-			var->red.length = 8;
-			var->green.length = 8;
-			var->blue.length = 8;
-		} else {
-			ret = -EINVAL;
-		}
-		break;
 	case 32:
 		/* If we can't do 888, reject */
 		caps &= CLCD_CAP_888;
···
 	fb->board->decode(fb, &regs);
 
 	clcdfb_disable(fb);
-
-	/* Some variants must be clocked here */
-	if (fb->vendor->clock_timregs && !fb->clk_enabled) {
-		fb->clk_enabled = true;
-		clk_enable(fb->clk);
-	}
 
 	writel(regs.tim0, fb->regs + CLCD_TIM0);
 	writel(regs.tim1, fb->regs + CLCD_TIM1);
···
 		fb->off_ienb = CLCD_PL111_IENB;
 		fb->off_cntl = CLCD_PL111_CNTL;
 	} else {
-		if (of_machine_is_compatible("arm,versatile-ab") ||
-		    of_machine_is_compatible("arm,versatile-pb")) {
-			fb->off_ienb = CLCD_PL111_IENB;
-			fb->off_cntl = CLCD_PL111_CNTL;
-		} else {
-			fb->off_ienb = CLCD_PL110_IENB;
-			fb->off_cntl = CLCD_PL110_CNTL;
-		}
+		fb->off_ienb = CLCD_PL110_IENB;
+		fb->off_cntl = CLCD_PL110_CNTL;
 	}
 
 	fb->clk = clk_get(&fb->dev->dev, NULL);
···
 	if (r0 != 0 && b0 == 0)
 		fb->panel->bgr_connection = true;
 
-	if (fb->panel->caps && fb->vendor->st_bitmux_control) {
-		/*
-		 * Set up the special bits for the Nomadik control register
-		 * (other platforms tend to do this through an external
-		 * register).
-		 */
-
-		/* Offset of the highest used color */
-		int maxoff = max3(r0, g0, b0);
-		/* Most significant bit out, highest used bit */
-		int msb = 0;
-
-		if (fb->panel->caps & CLCD_CAP_888) {
-			msb = maxoff + 8 - 1;
-		} else if (fb->panel->caps & CLCD_CAP_565) {
-			msb = maxoff + 5 - 1;
-			fb->panel->cntl |= CNTL_ST_1XBPP_565;
-		} else if (fb->panel->caps & CLCD_CAP_5551) {
-			msb = maxoff + 5 - 1;
-			fb->panel->cntl |= CNTL_ST_1XBPP_5551;
-		} else if (fb->panel->caps & CLCD_CAP_444) {
-			msb = maxoff + 4 - 1;
-			fb->panel->cntl |= CNTL_ST_1XBPP_444;
-		}
-
-		/* Send out as many bits as we need */
-		if (msb > 17)
-			fb->panel->cntl |= CNTL_ST_CDWID_24;
-		else if (msb > 15)
-			fb->panel->cntl |= CNTL_ST_CDWID_18;
-		else if (msb > 11)
-			fb->panel->cntl |= CNTL_ST_CDWID_16;
-		else
-			fb->panel->cntl |= CNTL_ST_CDWID_12;
-	}
-
 	return fb->panel->caps ? 0 : -EINVAL;
 }
 
···
 	panel = of_graph_get_remote_port_parent(endpoint);
 	if (!panel)
 		return -ENODEV;
-
-	if (fb->vendor->init_panel) {
-		err = fb->vendor->init_panel(fb, panel);
-		if (err)
-			return err;
-	}
 
 	err = clcdfb_of_get_backlight(panel, fb->panel);
 	if (err)
···
 static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
 {
 	struct clcd_board *board = dev_get_platdata(&dev->dev);
-	struct clcd_vendor_data *vendor = id->data;
 	struct clcd_fb *fb;
 	int ret;
 
···
 
 	if (!board)
 		return -EINVAL;
-
-	if (vendor->init_board) {
-		ret = vendor->init_board(dev, board);
-		if (ret)
-			return ret;
-	}
 
 	ret = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
 	if (ret)
···
 	}
 
 	fb->dev = dev;
-	fb->vendor = vendor;
 	fb->board = board;
 
 	dev_info(&fb->dev->dev, "PL%03x designer %02x rev%u at 0x%08llx\n",
···
 	return 0;
 }
 
-static struct clcd_vendor_data vendor_arm = {
-	/* Sets up the versatile board displays */
-	.init_panel = versatile_clcd_init_panel,
-};
-
-static struct clcd_vendor_data vendor_nomadik = {
-	.clock_timregs = true,
-	.packed_24_bit_pixels = true,
-	.st_bitmux_control = true,
-	.init_board = nomadik_clcd_init_board,
-	.init_panel = nomadik_clcd_init_panel,
-};
-
 static const struct amba_id clcdfb_id_table[] = {
 	{
 		.id	= 0x00041110,
 		.mask	= 0x000ffffe,
-		.data	= &vendor_arm,
-	},
-	/* ST Electronics Nomadik variant */
-	{
-		.id	= 0x00180110,
-		.mask	= 0x00fffffe,
-		.data	= &vendor_nomadik,
 	},
 	{ 0, 0 },
 };

drivers/video/fbdev/atafb.c

···
 #define ATAFB_EXT
 #define ATAFB_FALCON
 
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
···
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
 
 #include <asm/setup.h>
 #include <linux/uaccess.h>
···
 	return 0;
 }
 
-int __init atafb_init(void)
+static int __init atafb_probe(struct platform_device *pdev)
 {
 	int pad, detected_mode, error;
 	unsigned int defmode = 0;
 	unsigned long mem_req;
-
-#ifndef MODULE
 	char *option = NULL;
 
 	if (fb_get_options("atafb", &option))
 		return -ENODEV;
 	atafb_setup(option);
-#endif
-	printk("atafb_init: start\n");
-
-	if (!MACH_IS_ATARI)
-		return -ENODEV;
+	dev_dbg(&pdev->dev, "%s: start\n", __func__);
 
 	do {
 #ifdef ATAFB_EXT
 		if (external_addr) {
-			printk("atafb_init: initializing external hw\n");
+			dev_dbg(&pdev->dev, "initializing external hw\n");
 			fbhw = &ext_switch;
 			atafb_ops.fb_setcolreg = &ext_setcolreg;
 			defmode = DEFMODE_EXT;
···
 #endif
 #ifdef ATAFB_TT
 		if (ATARIHW_PRESENT(TT_SHIFTER)) {
-			printk("atafb_init: initializing TT hw\n");
+			dev_dbg(&pdev->dev, "initializing TT hw\n");
 			fbhw = &tt_switch;
 			atafb_ops.fb_setcolreg = &tt_setcolreg;
 			defmode = DEFMODE_TT;
···
 #endif
 #ifdef ATAFB_FALCON
 		if (ATARIHW_PRESENT(VIDEL_SHIFTER)) {
-			printk("atafb_init: initializing Falcon hw\n");
+			dev_dbg(&pdev->dev, "initializing Falcon hw\n");
 			fbhw = &falcon_switch;
 			atafb_ops.fb_setcolreg = &falcon_setcolreg;
 			error = request_irq(IRQ_AUTO_4, falcon_vbl_switcher, 0,
···
 #ifdef ATAFB_STE
 		if (ATARIHW_PRESENT(STND_SHIFTER) ||
 		    ATARIHW_PRESENT(EXTD_SHIFTER)) {
-			printk("atafb_init: initializing ST/E hw\n");
+			dev_dbg(&pdev->dev, "initializing ST/E hw\n");
 			fbhw = &st_switch;
 			atafb_ops.fb_setcolreg = &stste_setcolreg;
 			defmode = DEFMODE_STE;
···
 		}
 		fbhw = &st_switch;
 		atafb_ops.fb_setcolreg = &stste_setcolreg;
-		printk("Cannot determine video hardware; defaulting to ST(e)\n");
+		dev_warn(&pdev->dev,
+			 "Cannot determine video hardware; defaulting to ST(e)\n");
 #else /* ATAFB_STE */
 		/* no default driver included */
 		/* Nobody will ever see this message :-) */
···
 			kernel_set_cachemode(screen_base, screen_len,
 					     IOMAP_WRITETHROUGH);
 		}
-		printk("atafb: screen_base %p phys_screen_base %lx screen_len %d\n",
-			screen_base, phys_screen_base, screen_len);
+		dev_info(&pdev->dev, "phys_screen_base %lx screen_len %d\n",
+			 phys_screen_base, screen_len);
 #ifdef ATAFB_EXT
 	} else {
 		/* Map the video memory (physical address given) to somewhere
···
 	fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0);
 
 
-	printk("Determined %dx%d, depth %d\n",
-	       fb_info.var.xres, fb_info.var.yres, fb_info.var.bits_per_pixel);
+	dev_info(&pdev->dev, "Determined %dx%d, depth %d\n", fb_info.var.xres,
+		 fb_info.var.yres, fb_info.var.bits_per_pixel);
 	if ((fb_info.var.xres != fb_info.var.xres_virtual) ||
 	    (fb_info.var.yres != fb_info.var.yres_virtual))
-		printk("   virtual %dx%d\n", fb_info.var.xres_virtual,
-		       fb_info.var.yres_virtual);
+		dev_info(&pdev->dev, "   virtual %dx%d\n",
+			 fb_info.var.xres_virtual, fb_info.var.yres_virtual);
 
 	if (register_framebuffer(&fb_info) < 0) {
 #ifdef ATAFB_EXT
···
 	return 0;
 }
 
-module_init(atafb_init);
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-int cleanup_module(void)
+static void atafb_shutdown(struct platform_device *pdev)
 {
-	unregister_framebuffer(&fb_info);
-	return atafb_deinit();
+	/* Unblank before kexec */
+	if (fbhw->blank)
+		fbhw->blank(0);
 }
-#endif /* MODULE */
+
+static struct platform_driver atafb_driver = {
+	.shutdown	= atafb_shutdown,
+	.driver	= {
+		.name	= "atafb",
+	},
+};
+
+static int __init atafb_init(void)
+{
+	struct platform_device *pdev;
+
+	if (!MACH_IS_ATARI)
+		return -ENODEV;
+
+	pdev = platform_device_register_simple("atafb", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return platform_driver_probe(&atafb_driver, atafb_probe);
+}
+
+device_initcall(atafb_init);

drivers/video/fbdev/atafb_iplan2p2.c

···
  *  more details.
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fb.h>
 
···
 	if (width)
 		fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
 }
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-int init_module(void)
-{
-	return 0;
-}
-
-void cleanup_module(void)
-{
-}
-#endif /* MODULE */
-
-
-    /*
-     *  Visible symbols for modules
-     */
-
-EXPORT_SYMBOL(atafb_iplan2p2_copyarea);
-EXPORT_SYMBOL(atafb_iplan2p2_fillrect);
-EXPORT_SYMBOL(atafb_iplan2p2_linefill);

drivers/video/fbdev/atafb_iplan2p4.c

···
  *  more details.
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fb.h>
 
···
 	if (width)
 		fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
 }
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-int init_module(void)
-{
-	return 0;
-}
-
-void cleanup_module(void)
-{
-}
-#endif /* MODULE */
-
-
-    /*
-     *  Visible symbols for modules
-     */
-
-EXPORT_SYMBOL(atafb_iplan2p4_copyarea);
-EXPORT_SYMBOL(atafb_iplan2p4_fillrect);
-EXPORT_SYMBOL(atafb_iplan2p4_linefill);

drivers/video/fbdev/atafb_iplan2p8.c

···
  *  more details.
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fb.h>
 
···
 	if (width)
 		fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
 }
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-int init_module(void)
-{
-	return 0;
-}
-
-void cleanup_module(void)
-{
-}
-#endif /* MODULE */
-
-
-    /*
-     *  Visible symbols for modules
-     */
-
-EXPORT_SYMBOL(atafb_iplan2p8_copyarea);
-EXPORT_SYMBOL(atafb_iplan2p8_fillrect);
-EXPORT_SYMBOL(atafb_iplan2p8_linefill);

drivers/video/fbdev/atafb_mfb.c

···
  *  more details.
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fb.h>
 
···
 		*dest++ = *data++;
 	}
 }
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-int init_module(void)
-{
-	return 0;
-}
-
-void cleanup_module(void)
-{
-}
-#endif /* MODULE */
-
-
-    /*
-     *  Visible symbols for modules
-     */
-
-EXPORT_SYMBOL(atafb_mfb_copyarea);
-EXPORT_SYMBOL(atafb_mfb_fillrect);
-EXPORT_SYMBOL(atafb_mfb_linefill);

drivers/video/fbdev/atmel_lcdfb.c

···
 /*
- *  Driver for AT91/AT32 LCD Controller
+ *  Driver for AT91 LCD Controller
  *
  *  Copyright (C) 2007 Atmel Corporation
  *
···
 static struct atmel_lcdfb_config at91sam9rl_config = {
 	.have_intensity_bit	= true,
 };
-
-static struct atmel_lcdfb_config at32ap_config = {
-	.have_hozval		= true,
-};
-
-static const struct platform_device_id atmel_lcdfb_devtypes[] = {
-	{
-		.name = "at91sam9261-lcdfb",
-		.driver_data = (unsigned long)&at91sam9261_config,
-	}, {
-		.name = "at91sam9263-lcdfb",
-		.driver_data = (unsigned long)&at91sam9263_config,
-	}, {
-		.name = "at91sam9g10-lcdfb",
-		.driver_data = (unsigned long)&at91sam9g10_config,
-	}, {
-		.name = "at91sam9g45-lcdfb",
-		.driver_data = (unsigned long)&at91sam9g45_config,
-	}, {
-		.name = "at91sam9g45es-lcdfb",
-		.driver_data = (unsigned long)&at91sam9g45es_config,
-	}, {
-		.name = "at91sam9rl-lcdfb",
-		.driver_data = (unsigned long)&at91sam9rl_config,
-	}, {
-		.name = "at32ap-lcdfb",
-		.driver_data = (unsigned long)&at32ap_config,
-	}, {
-		/* terminator */
-	}
-};
-MODULE_DEVICE_TABLE(platform, atmel_lcdfb_devtypes);
-
-static struct atmel_lcdfb_config *
-atmel_lcdfb_get_config(struct platform_device *pdev)
-{
-	unsigned long data;
-
-	data = platform_get_device_id(pdev)->driver_data;
-
-	return (struct atmel_lcdfb_config *)data;
-}
-
-#if defined(CONFIG_ARCH_AT91)
-#define	ATMEL_LCDFB_FBINFO_DEFAULT	(FBINFO_DEFAULT \
-					 | FBINFO_PARTIAL_PAN_OK \
-					 | FBINFO_HWACCEL_YPAN)
-
-static inline void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
-					struct fb_var_screeninfo *var,
-					struct fb_info *info)
-{
-
-}
-#elif defined(CONFIG_AVR32)
-#define	ATMEL_LCDFB_FBINFO_DEFAULT	(FBINFO_DEFAULT \
-					| FBINFO_PARTIAL_PAN_OK \
-					| FBINFO_HWACCEL_XPAN \
-					| FBINFO_HWACCEL_YPAN)
-
-static void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
-				     struct fb_var_screeninfo *var,
-				     struct fb_info *info)
-{
-	u32 dma2dcfg;
-	u32 pixeloff;
-
-	pixeloff = (var->xoffset * info->var.bits_per_pixel) & 0x1f;
-
-	dma2dcfg = (info->var.xres_virtual - info->var.xres)
-		 * info->var.bits_per_pixel / 8;
-	dma2dcfg |= pixeloff << ATMEL_LCDC_PIXELOFF_OFFSET;
-	lcdc_writel(sinfo, ATMEL_LCDC_DMA2DCFG, dma2dcfg);
-
-	/* Update configuration */
-	lcdc_writel(sinfo, ATMEL_LCDC_DMACON,
-		    lcdc_readl(sinfo, ATMEL_LCDC_DMACON)
-		    | ATMEL_LCDC_DMAUPDT);
-}
-#endif
 
 static u32 contrast_ctr = ATMEL_LCDC_PS_DIV8
 		| ATMEL_LCDC_POL_POSITIVE
···
 
 	/* Set framebuffer DMA base address and pixel offset */
 	lcdc_writel(sinfo, ATMEL_LCDC_DMABADDR1, dma_addr);
-
-	atmel_lcdfb_update_dma2d(sinfo, var, info);
 }
 
 static inline void atmel_lcdfb_free_video_memory(struct atmel_lcdfb_info *sinfo)
···
 	clk_disable_unprepare(sinfo->lcdc_clk);
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id atmel_lcdfb_dt_ids[] = {
 	{ .compatible = "atmel,at91sam9261-lcdc" , .data = &at91sam9261_config, },
 	{ .compatible = "atmel,at91sam9263-lcdc" , .data = &at91sam9263_config, },
···
 	{ .compatible = "atmel,at91sam9g45-lcdc" , .data = &at91sam9g45_config, },
 	{ .compatible = "atmel,at91sam9g45es-lcdc" , .data = &at91sam9g45es_config, },
 	{ .compatible = "atmel,at91sam9rl-lcdc" , .data = &at91sam9rl_config, },
-	{ .compatible = "atmel,at32ap-lcdc" , .data = &at32ap_config, },
 	{ /* sentinel */ }
 };
 
···
 	of_node_put(display_np);
 	return ret;
 }
-#else
-static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
-{
-	return 0;
-}
-#endif
 
 static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct fb_info *info;
 	struct atmel_lcdfb_info *sinfo;
-	struct atmel_lcdfb_pdata *pdata = NULL;
 	struct resource *regs = NULL;
 	struct resource *map = NULL;
 	struct fb_modelist *modelist;
···
 		ret = atmel_lcdfb_of_init(sinfo);
 		if (ret)
 			goto free_info;
-	} else if (dev_get_platdata(dev)) {
-		struct fb_monspecs *monspecs;
-		int i;
-
-		pdata = dev_get_platdata(dev);
-		monspecs = pdata->default_monspecs;
-		sinfo->pdata = *pdata;
-
-		for (i = 0; i < monspecs->modedb_len; i++)
-			fb_add_videomode(&monspecs->modedb[i], &info->modelist);
-
-		sinfo->config = atmel_lcdfb_get_config(pdev);
-
-		info->var.bits_per_pixel = pdata->default_bpp ? pdata->default_bpp : 16;
-		memcpy(&info->monspecs, pdata->default_monspecs, sizeof(info->monspecs));
 	} else {
 		dev_err(dev, "cannot get default configuration\n");
 		goto free_info;
···
 	if (IS_ERR(sinfo->reg_lcd))
 		sinfo->reg_lcd = NULL;
 
-	info->flags = ATMEL_LCDFB_FBINFO_DEFAULT;
+	info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK |
+		      FBINFO_HWACCEL_YPAN;
 	info->pseudo_palette = sinfo->pseudo_palette;
 	info->fbops = &atmel_lcdfb_ops;
 
···
 	struct device *dev = &pdev->dev;
 	struct fb_info *info = dev_get_drvdata(dev);
 	struct atmel_lcdfb_info *sinfo;
-	struct atmel_lcdfb_pdata *pdata;
 
 	if (!info || !info->par)
 		return 0;
 	sinfo = info->par;
-	pdata = &sinfo->pdata;
 
 	cancel_work_sync(&sinfo->task);
 	exit_backlight(sinfo);
···
 	.remove		= __exit_p(atmel_lcdfb_remove),
 	.suspend	= atmel_lcdfb_suspend,
 	.resume		= atmel_lcdfb_resume,
-	.id_table	= atmel_lcdfb_devtypes,
 	.driver		= {
 		.name	= "atmel_lcdfb",
 		.of_match_table	= of_match_ptr(atmel_lcdfb_dt_ids),
···
 
 module_platform_driver_probe(atmel_lcdfb_driver, atmel_lcdfb_probe);
 
-MODULE_DESCRIPTION("AT91/AT32 LCD Controller framebuffer driver");
+MODULE_DESCRIPTION("AT91 LCD Controller framebuffer driver");
 MODULE_AUTHOR("Nicolas Ferre <[e-mail]>");
 MODULE_LICENSE("GPL");

drivers/video/fbdev/core/fbcmap.c

···
 	int size = len * sizeof(u16);
 	int ret = -ENOMEM;
 
+	flags |= __GFP_NOWARN;
+
 	if (cmap->len != len) {
 		fb_dealloc_cmap(cmap);
 		if (!len)

drivers/video/fbdev/core/fbcon.c

···
 
 	cap = info->flags;
 
-	if (console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
+	if (logo_shown < 0 && console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
 		logo_shown = FBCON_LOGO_DONTSHOW;
 
 	if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW ||

drivers/video/fbdev/core/fbmem.c

···
 {
 	struct apertures_struct *ap;
 	bool primary = false;
-	int err;
+	int err, idx, bar;
+	bool res_id_found = false;
 
-	ap = alloc_apertures(1);
+	for (idx = 0, bar = 0; bar < PCI_ROM_RESOURCE; bar++) {
+		if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM))
+			continue;
+		idx++;
+	}
+
+	ap = alloc_apertures(idx);
 	if (!ap)
 		return -ENOMEM;
 
-	ap->ranges[0].base = pci_resource_start(pdev, res_id);
-	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+	for (idx = 0, bar = 0; bar < PCI_ROM_RESOURCE; bar++) {
+		if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM))
+			continue;
+		ap->ranges[idx].base = pci_resource_start(pdev, bar);
+		ap->ranges[idx].size = pci_resource_len(pdev, bar);
+		pci_info(pdev, "%s: bar %d: 0x%lx -> 0x%lx\n", __func__, bar,
+			 (unsigned long)pci_resource_start(pdev, bar),
+			 (unsigned long)pci_resource_end(pdev, bar));
+		idx++;
+		if (res_id == bar)
+			res_id_found = true;
+	}
+	if (!res_id_found)
+		pci_warn(pdev, "%s: passed res_id (%d) is not a memory bar\n",
+			 __func__, res_id);
+
 #ifdef CONFIG_X86
 	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
 					IORESOURCE_ROM_SHADOW;

drivers/video/fbdev/core/modedb.c

···
 	if (var->vmode & FB_VMODE_DOUBLE)
 		vtotal *= 2;
 
+	if (!htotal || !vtotal)
+		return;
+
 	hfreq = pixclock/htotal;
 	mode->refresh = hfreq/vtotal;
 }

drivers/video/fbdev/hgafb.c

···
 	hga_vram_len  = 0x08000;
 
 	hga_vram = ioremap(0xb0000, hga_vram_len);
+	if (!hga_vram)
+		goto error;
 
 	if (request_region(0x3b0, 12, "hgafb"))
 		release_io_ports = 1;

drivers/video/fbdev/imsttfb.c

···
 	info->fix.smem_start = addr;
 	info->screen_base = (__u8 *)ioremap(addr, par->ramdac == IBM ?
 					    0x400000 : 0x800000);
+	if (!info->screen_base) {
+		release_mem_region(addr, size);
+		framebuffer_release(info);
+		return -ENOMEM;
+	}
 	info->fix.mmio_start = addr + 0x800000;
 	par->dc_regs = ioremap(addr + 0x800000, 0x1000);
 	par->cmap_regs_phys = addr + 0x840000;

drivers/video/fbdev/macfb.c

···
 #define PIXEL_TO_MM(a)	(((a)*10)/28)	/* width in mm at 72 dpi */
 
 static struct fb_var_screeninfo macfb_defined = {
-	.bits_per_pixel	= 8,
 	.activate	= FB_ACTIVATE_NOW,
-	.width		= -1,
-	.height		= -1,
 	.right_margin	= 32,
 	.upper_margin	= 16,
 	.lower_margin	= 4,
···
 static void *slot_addr;
 static struct fb_info fb_info;
 static u32 pseudo_palette[16];
-static int inverse;
 static int vidtest;
 
 /*
···
 			   unsigned int green, unsigned int blue,
 			   struct fb_info *info)
 {
-	static int lastreg = -1;
+	static int lastreg = -2;
 	unsigned long flags;
 
 	local_irq_save(flags);
···
 	unsigned int bpp = info->var.bits_per_pixel;
 	unsigned long flags;
 
-	if (bpp > 8)
-		return 1; /* failsafe */
-
 	local_irq_save(flags);
 
 	/* On these chips, the CLUT register numbers are spread out
···
 			  struct fb_info *info)
 {
 	unsigned long flags;
-
-	if (info->var.bits_per_pixel > 8)
-		return 1; /* failsafe */
 
 	local_irq_save(flags);
 
···
 	unsigned long flags;
 	int clut_status;
 	
-	if (info->var.bits_per_pixel > 8)
-		return 1; /* failsafe */
-
 	local_irq_save(flags);
 
 	/* Set the register address */
···
 			continue;
 
 		if (!strcmp(this_opt, "inverse"))
-			inverse = 1;
+			fb_invert_cmaps();
 		else
 			if (!strcmp(this_opt, "vidtest"))
 				vidtest = 1; /* enable experimental CLUT code */
···
 		case NUBUS_DRHW_APPLE_MDC:
 			strcpy(macfb_fix.id, "Mac Disp. Card");
 			macfb_setpalette = mdc_setpalette;
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 		case NUBUS_DRHW_APPLE_TFB:
 			strcpy(macfb_fix.id, "Toby");
 			macfb_setpalette = toby_setpalette;
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 		case NUBUS_DRHW_APPLE_JET:
 			strcpy(macfb_fix.id, "Jet");
 			macfb_setpalette = jet_setpalette;
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 		default:
 			strcpy(macfb_fix.id, "Generic NuBus");
···
 			strcpy(macfb_fix.id, "DAFB");
 			macfb_setpalette = dafb_setpalette;
 			dafb_cmap_regs = ioremap(DAFB_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		/*
···
 			strcpy(macfb_fix.id, "V8");
 			macfb_setpalette = v8_brazil_setpalette;
 			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		/*
···
 			strcpy(macfb_fix.id, "Brazil");
 			macfb_setpalette = v8_brazil_setpalette;
 			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		/*
···
 			strcpy(macfb_fix.id, "Sonora");
 			macfb_setpalette = v8_brazil_setpalette;
 			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		/*
···
 			strcpy(macfb_fix.id, "RBV");
 			macfb_setpalette = rbv_setpalette;
 			rbv_cmap_regs = ioremap(DAC_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		/*
···
 			strcpy(macfb_fix.id, "Civic");
 			macfb_setpalette = civic_setpalette;
 			civic_cmap_regs = ioremap(CIVIC_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		
···
 				macfb_setpalette = v8_brazil_setpalette;
 				v8_brazil_cmap_regs =
 					ioremap(DAC_BASE, 0x1000);
-				macfb_defined.activate = FB_ACTIVATE_NOW;
 			}
 			break;
 
···
 				macfb_setpalette = v8_brazil_setpalette;
 				v8_brazil_cmap_regs =
 					ioremap(DAC_BASE, 0x1000);
-				macfb_defined.activate = FB_ACTIVATE_NOW;
 			}
 			break;
 
···
 			strcpy(macfb_fix.id, "CSC");
 			macfb_setpalette = csc_setpalette;
 			csc_cmap_regs = ioremap(CSC_BASE, 0x1000);
-			macfb_defined.activate = FB_ACTIVATE_NOW;
 			break;
 
 		default:

drivers/video/fbdev/mmp/Kconfig

···
 menuconfig MMP_DISP
-        tristate "Marvell MMP Display Subsystem support"
-        depends on CPU_PXA910 || CPU_MMP2
-        help
+	tristate "Marvell MMP Display Subsystem support"
+	depends on CPU_PXA910 || CPU_MMP2
+	help
 	  Marvell Display Subsystem support.
 
 if MMP_DISP

drivers/video/fbdev/mxsfb.c

···
 	const struct mxsfb_devdata *devdata;
 	u32 sync;
 	struct regulator *reg_lcd;
+	int pre_init;
 };
 
 #define mxsfb_is_v3(host) (host->devdata->ipversion == 3)
···
 
 	fb_info->fix.line_length = line_size;
 
+	if (host->pre_init) {
+		mxsfb_enable_controller(fb_info);
+		host->pre_init = 0;
+		return 0;
+	}
+
 	/*
 	 * It seems, you can't re-program the controller if it is still running.
 	 * This may lead into shifted pictures (FIFO issue?).
···
 			struct fb_videomode *vmode)
 {
 	struct mxsfb_info *host = fb_info->par;
-	unsigned line_count;
 	unsigned period;
 	unsigned long pa, fbsize;
 	int bits_per_pixel, ofs, ret = 0;
···
 		writel(fb_info->fix.smem_start, host->base + host->devdata->next_buf);
 	}
 
-	line_count = fb_info->fix.smem_len / fb_info->fix.line_length;
 	fb_info->fix.ypanstep = 1;
 
 	clk_prepare_enable(host->clk);
···
 	if (IS_ERR(host->reg_lcd))
 		host->reg_lcd = NULL;
 
+#if defined(CONFIG_FB_PRE_INIT_FB)
+	host->pre_init = 1;
+#endif
+
 	fb_info->pseudo_palette = devm_kcalloc(&pdev->dev, 16, sizeof(u32),
 					       GFP_KERNEL);
 	if (!fb_info->pseudo_palette) {
···
 		mxsfb_enable_controller(fb_info);
 	}
 
+	host->pre_init = 0;
 	dev_info(&pdev->dev, "initialized\n");
 
 	return 0;

drivers/video/fbdev/nuc900fb.c

···
 	struct fb_info *fbinfo;
 	long delta_f;
 	info = container_of(nb, struct nuc900fb_info, freq_transition);
-	fbinfo = platform_get_drvdata(to_platform_device(info->dev));
+	fbinfo = dev_get_drvdata(info->dev);
 
 	delta_f = info->clk_rate - clk_get_rate(info->clk);
 

drivers/video/fbdev/omap/Kconfig

···
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
 	help
-          Frame buffer driver for OMAP based boards.
+	  Frame buffer driver for OMAP based boards.
 
 config FB_OMAP_LCDC_EXTERNAL
 	bool "External LCD controller support"
···
 	  H3 board.
 
 config FB_OMAP_DMA_TUNE
-        bool "Set DMA SDRAM access priority high"
-        depends on FB_OMAP
-        help
-          On systems in which video memory is in system memory
-          (SDRAM) this will speed up graphics DMA operations.
-          If you have such a system and want to use rotation
-          answer yes. Answer no if you have a dedicated video
-          memory, or don't use any of the accelerated features.
-
-
+	bool "Set DMA SDRAM access priority high"
+	depends on FB_OMAP
+	help
+	  On systems in which video memory is in system memory
+	  (SDRAM) this will speed up graphics DMA operations.
+	  If you have such a system and want to use rotation
+	  answer yes. Answer no if you have a dedicated video
+	  memory, or don't use any of the accelerated features.

drivers/video/fbdev/omap2/omapfb/Kconfig

···
 	bool
 
 menuconfig FB_OMAP2
-        tristate "OMAP2+ frame buffer support"
-        depends on FB
-        depends on DRM_OMAP = n
+	tristate "OMAP2+ frame buffer support"
+	depends on FB
+	depends on DRM_OMAP = n
 	depends on GPIOLIB
 
-        select FB_OMAP2_DSS
+	select FB_OMAP2_DSS
 	select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
-        select FB_CFB_FILLRECT
-        select FB_CFB_COPYAREA
-        select FB_CFB_IMAGEBLIT
-        help
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	help
 	  Frame buffer driver for OMAP2+ based boards.
 
 if FB_OMAP2
 
 config FB_OMAP2_DEBUG_SUPPORT
-        bool "Debug support for OMAP2+ FB"
+	bool "Debug support for OMAP2+ FB"
 	default y
 	depends on FB_OMAP2
 	help

drivers/video/fbdev/omap2/omapfb/displays/Kconfig

···
 menu "OMAPFB Panel and Encoder Drivers"
-        depends on FB_OMAP2_DSS
+	depends on FB_OMAP2_DSS
 
 config FB_OMAP2_ENCODER_OPA362
 	tristate "OPA362 external analog amplifier"
···
 	  through a GPIO.
 
 config FB_OMAP2_ENCODER_TFP410
-        tristate "TFP410 DPI to DVI Encoder"
+	tristate "TFP410 DPI to DVI Encoder"
 	help
 	  Driver for TFP410 DPI to DVI encoder.
 
 config FB_OMAP2_ENCODER_TPD12S015
-        tristate "TPD12S015 HDMI ESD protection and level shifter"
+	tristate "TPD12S015 HDMI ESD protection and level shifter"
 	help
 	  Driver for TPD12S015, which offers HDMI ESD protection and level
 	  shifting.
 
 config FB_OMAP2_CONNECTOR_DVI
-        tristate "DVI Connector"
+	tristate "DVI Connector"
 	depends on I2C
 	help
 	  Driver for a generic DVI connector.
 
 config FB_OMAP2_CONNECTOR_HDMI
-        tristate "HDMI Connector"
+	tristate "HDMI Connector"
 	help
 	  Driver for a generic HDMI connector.
 
 config FB_OMAP2_CONNECTOR_ANALOG_TV
-        tristate "Analog TV Connector"
+	tristate "Analog TV Connector"
 	help
 	  Driver for a generic analog TV connector.
 
···
 	  LCD Panel used on the Gumstix Overo Palo35
 
 config FB_OMAP2_PANEL_SHARP_LS037V7DW01
-        tristate "Sharp LS037V7DW01 LCD Panel"
-        depends on BACKLIGHT_CLASS_DEVICE
-        help
-          LCD Panel used in TI's SDP3430 and EVM boards
+	tristate "Sharp LS037V7DW01 LCD Panel"
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  LCD Panel used in TI's SDP3430 and EVM boards
 
 config FB_OMAP2_PANEL_TPO_TD028TTEC1
-        tristate "TPO TD028TTEC1 LCD Panel"
-        depends on SPI
-        help
-          LCD panel used in Openmoko.
+	tristate "TPO TD028TTEC1 LCD Panel"
+	depends on SPI
+	help
+	  LCD panel used in Openmoko.
 
 config FB_OMAP2_PANEL_TPO_TD043MTEA1
-        tristate "TPO TD043MTEA1 LCD Panel"
-        depends on SPI
-        help
-          LCD Panel used in OMAP3 Pandora
+	tristate "TPO TD043MTEA1 LCD Panel"
+	depends on SPI
+	help
+	  LCD Panel used in OMAP3 Pandora
 
 config FB_OMAP2_PANEL_NEC_NL8048HL11
 	tristate "NEC NL8048HL11 Panel"
 	depends on SPI
 	depends on BACKLIGHT_CLASS_DEVICE
 	help
-		This NEC NL8048HL11 panel is TFT LCD used in the
-		Zoom2/3/3630 sdp boards.
+	  This NEC NL8048HL11 panel is TFT LCD used in the
+	  Zoom2/3/3630 sdp boards.
 
 endmenu

drivers/video/fbdev/omap2/omapfb/dss/Kconfig

···
 	bool
 
 config FB_OMAP2_DSS
-        tristate
+	tristate
 	select VIDEOMODE_HELPERS
 	select FB_OMAP2_DSS_INIT
 	select HDMI
···
 
 config FB_OMAP2_DSS_VENC
 	bool "VENC support"
-        default y
+	default y
 	help
 	  OMAP Video Encoder support for S-Video and composite TV-out.
 
···
 
 config FB_OMAP4_DSS_HDMI
 	bool "HDMI support for OMAP4"
-        default y
+	default y
 	select FB_OMAP2_DSS_HDMI_COMMON
 	help
 	  HDMI support for OMAP4 based SoCs.

drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c

···
 
 	new_len = prop->length + strlen(prefix) * num_strs;
 	new_compat = kmalloc(new_len, GFP_KERNEL);
+	if (!new_compat)
+		return;
 
 	omapdss_prefix_strcpy(new_compat, new_len, prop->value, prop->length);
 
···
 
 	dss = of_find_matching_node(NULL, omapdss_of_match);
 
-	if (dss == NULL || !of_device_is_available(dss))
+	if (dss == NULL || !of_device_is_available(dss)) {
+		of_node_put(dss);
 		return 0;
+	}
 
 	omapdss_walk_device(dss, true);
 

drivers/video/fbdev/pvr2fb.c

···
 static int __init pvr2fb_init(void)
 {
 	int i, ret = -ENODEV;
-	int size;
 
 #ifndef MODULE
 	char *option = NULL;
···
 		return -ENODEV;
 	pvr2fb_setup(option);
 #endif
-	size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32);
 
 	fb_info = framebuffer_alloc(sizeof(struct pvr2fb_par), NULL);
 

drivers/video/fbdev/s3c2410fb.c

···
 	long delta_f;
 
 	info = container_of(nb, struct s3c2410fb_info, freq_transition);
-	fbinfo = platform_get_drvdata(to_platform_device(info->dev));
+	fbinfo = dev_get_drvdata(info->dev);
 
 	/* work out change, <0 for speed-up */
 	delta_f = info->clk_rate - clk_get_rate(info->clk);

drivers/video/fbdev/savage/savagefb_driver.c

···
 
 		err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
 		if (!err)
-		info->flags |= FBINFO_HWACCEL_COPYAREA |
-	                       FBINFO_HWACCEL_FILLRECT |
-		               FBINFO_HWACCEL_IMAGEBLIT;
+			info->flags |= FBINFO_HWACCEL_COPYAREA |
+				       FBINFO_HWACCEL_FILLRECT |
+				       FBINFO_HWACCEL_IMAGEBLIT;
 	}
 #endif
 	return err;

drivers/video/fbdev/sm712.h

···
 
 #define FB_ACCEL_SMI_LYNX 88
 
-#define SCREEN_X_RES      1024
-#define SCREEN_Y_RES      600
-#define SCREEN_BPP        16
-
-/*Assume SM712 graphics chip has 4MB VRAM */
-#define SM712_VIDEOMEMORYSIZE	  0x00400000
-/*Assume SM722 graphics chip has 8MB VRAM */
-#define SM722_VIDEOMEMORYSIZE	  0x00800000
+#define SCREEN_X_RES          1024
+#define SCREEN_Y_RES_PC       768
+#define SCREEN_Y_RES_NETBOOK  600
+#define SCREEN_BPP            16
 
 #define dac_reg	(0x3c8)
 #define dac_val	(0x3c9)

drivers/video/fbdev/sm712fb.c

···
 			0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
 		},
 	},
+	{	/*  1024 x 768  16Bpp  60Hz */
+		1024, 768, 16, 60,
+		/*  Init_MISC */
+		0xEB,
+		{	/*  Init_SR0_SR4 */
+			0x03, 0x01, 0x0F, 0x03, 0x0E,
+		},
+		{	/*  Init_SR10_SR24 */
+			0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C,
+			0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0xC4, 0x30, 0x02, 0x01, 0x01,
+		},
+		{	/*  Init_SR30_SR75 */
+			0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A,
+			0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF,
+			0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
+			0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A,
+			0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
+			0x0F, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A,
+			0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
+			0x50, 0x03, 0x74, 0x14, 0x3B, 0x0D, 0x09, 0x02,
+			0x04, 0x45, 0x30, 0x30, 0x40, 0x20,
+		},
+		{	/*  Init_SR80_SR93 */
+			0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
+			0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
+			0x00, 0x00, 0x00, 0x00,
+		},
+		{	/*  Init_SRA0_SRAF */
+			0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
+			0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
+		},
+		{	/*  Init_GR00_GR08 */
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
+			0xFF,
+		},
+		{	/*  Init_AR00_AR14 */
+			0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+			0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+			0x41, 0x00, 0x0F, 0x00, 0x00,
+		},
+		{	/*  Init_CR00_CR18 */
+			0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
+			0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
+			0xFF,
+		},
+		{	/*  Init_CR30_CR4D */
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
+			0x00, 0x00, 0x00, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
+			0xA3, 0x7F, 0x00, 0x86, 0x15, 0x24, 0xFF, 0x00,
+			0x01, 0x07, 0xE5, 0x20, 0x7F, 0xFF,
+		},
+		{	/*  Init_CR90_CRA7 */
+			0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
+			0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
+			0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
+		},
+	},
 	{	/*  mode#5: 1024 x 768  24Bpp  60Hz */
 		1024, 768, 24, 60,
 		/*  Init_MISC */
···
 
 static int smtc_blank(int blank_mode, struct fb_info *info)
 {
+	struct smtcfb_info *sfb = info->par;
+
 	/* clear DPMS setting */
 	switch (blank_mode) {
 	case FB_BLANK_UNBLANK:
 		/* Screen On: HSync: On, VSync : On */
+
+		switch (sfb->chip_id) {
+		case 0x710:
+		case 0x712:
+			smtc_seqw(0x6a, 0x16);
+			smtc_seqw(0x6b, 0x02);
+			break;
+		case 0x720:
+			smtc_seqw(0x6a, 0x0d);
+			smtc_seqw(0x6b, 0x02);
+			break;
+		}
+
+		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
 		smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
-		smtc_seqw(0x6a, 0x16);
-		smtc_seqw(0x6b, 0x02);
 		smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
 		smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
-		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
-		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 		smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
+		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 		break;
 	case FB_BLANK_NORMAL:
 		/* Screen Off: HSync: On, VSync : On   Soft blank */
-		smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
-		smtc_seqw(0x6a, 0x16);
-		smtc_seqw(0x6b, 0x02);
-		smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
-		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
 		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
+		smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
+		smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
+		smtc_seqw(0x6a, 0x16);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	case FB_BLANK_VSYNC_SUSPEND:
 		/* Screen On: HSync: On, VSync : Off */
-		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
-		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
-		smtc_seqw(0x6a, 0x0c);
-		smtc_seqw(0x6b, 0x02);
-		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
-		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
-		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
 		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
 		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
+		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
+		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
+		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
 		smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+		smtc_seqw(0x6a, 0x0c);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	case FB_BLANK_HSYNC_SUSPEND:
 		/* Screen On: HSync: Off, VSync : On */
-		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
-		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
-		smtc_seqw(0x6a, 0x0c);
-		smtc_seqw(0x6b, 0x02);
-		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
-		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
-		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
 		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
 		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
+		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
+		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
+		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
 		smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+		smtc_seqw(0x6a, 0x0c);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	case FB_BLANK_POWERDOWN:
 		/* Screen On: HSync: Off, VSync : Off */
-		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
-		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
-		smtc_seqw(0x6a, 0x0c);
-		smtc_seqw(0x6b, 0x02);
-		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
-		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
-		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
 		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
 		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
+		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
+		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
+		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
 		smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+		smtc_seqw(0x6a, 0x0c);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	default:
 		return -EINVAL;
···
 
 		/* init SEQ register SR30 - SR75 */
 		for (i = 0; i < SIZE_SR30_SR75; i++)
-			if ((i + 0x30) != 0x62 && (i + 0x30) != 0x6a &&
-			    (i + 0x30) != 0x6b)
+			if ((i + 0x30) != 0x30 && (i + 0x30) != 0x62 &&
+			    (i + 0x30) != 0x6a && (i + 0x30) != 0x6b &&
+			    (i + 0x30) != 0x70 && (i + 0x30) != 0x71 &&
+			    (i + 0x30) != 0x74 && (i + 0x30) != 0x75)
 				smtc_seqw(i + 0x30,
 					  vgamode[j].init_sr30_sr75[i]);
 
···
 			smtc_crtcw(i, vgamode[j].init_cr00_cr18[i]);
 
 		/* init CRTC register CR30 - CR4D */
-		for (i = 0; i < SIZE_CR30_CR4D; i++)
+		for (i = 0; i < SIZE_CR30_CR4D; i++) {
+			if ((i + 0x30) >= 0x3B && (i + 0x30) <= 0x3F)
+				/* side-effect, don't write to CR3B-CR3F */
+				continue;
 			smtc_crtcw(i + 0x30, vgamode[j].init_cr30_cr4d[i]);
+		}
 
 		/* init CRTC register CR90 - CRA7 */
 		for (i = 0; i < SIZE_CR90_CRA7; i++)
···
 {
 	sfb->fb->fix.smem_start = pci_resource_start(pdev, 0);
 
+	if (sfb->chip_id == 0x720)
+		/* on SM720, the framebuffer starts at the 1 MB offset */
+		sfb->fb->fix.smem_start += 0x00200000;
+
+	/* XXX: is it safe for SM720 on Big-Endian? */
 	if (sfb->fb->var.bits_per_pixel == 32)
 		sfb->fb->fix.smem_start += big_addr;
 
···
 	outb_p(0x11, 0x3c5);
 }
 
+static u_long sm7xx_vram_probe(struct smtcfb_info *sfb)
+{
+	u8 vram;
+
+	switch (sfb->chip_id) {
+	case 0x710:
+	case 0x712:
+		/*
+		 * Assume SM712 graphics chip has 4MB VRAM.
+		 *
+		 * FIXME: SM712 can have 2MB VRAM, which is used on earlier
+		 * laptops, such as IBM Thinkpad 240X. This driver would
+		 * probably crash on those machines. If anyone gets one of
+		 * those and is willing to help, run "git blame" and send me
+		 * an E-mail.
+		 */
+		return 0x00400000;
+	case 0x720:
+		outb_p(0x76, 0x3c4);
+		vram = inb_p(0x3c5) >> 6;
+
+		if (vram == 0x00)
+			return 0x00800000;  /* 8 MB */
+		else if (vram == 0x01)
+			return 0x01000000;  /* 16 MB */
+		else if (vram == 0x02)
+			return 0x00400000;  /* illegal, fallback to 4 MB */
+		else if (vram == 0x03)
+			return 0x00400000;  /* 4 MB */
+	}
+	return 0;  /* unknown hardware */
+}
+
+static void sm7xx_resolution_probe(struct smtcfb_info *sfb)
+{
+	/* get mode parameter from smtc_scr_info */
+	if (smtc_scr_info.lfb_width != 0) {
+		sfb->fb->var.xres = smtc_scr_info.lfb_width;
+		sfb->fb->var.yres = smtc_scr_info.lfb_height;
+		sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth;
+		goto final;
+	}
+
+	/*
+	 * No parameter, default resolution is 1024x768-16.
+	 *
+	 * FIXME: earlier laptops, such as IBM Thinkpad 240X, has a 800x600
+	 * panel, also see the comments about Thinkpad 240X above.
+	 */
+	sfb->fb->var.xres = SCREEN_X_RES;
+	sfb->fb->var.yres = SCREEN_Y_RES_PC;
+	sfb->fb->var.bits_per_pixel = SCREEN_BPP;
+
+#ifdef CONFIG_MIPS
+	/*
+	 * Loongson MIPS netbooks use 1024x600 LCD panels, which is the original
+	 * target platform of this driver, but nearly all old x86 laptops have
+	 * 1024x768. Lighting 768 panels using 600's timings would partially
+	 * garble the display, so we don't want that. But it's not possible to
+	 * distinguish them reliably.
+	 *
+	 * So we change the default to 768, but keep 600 as-is on MIPS.
+	 */
+	sfb->fb->var.yres = SCREEN_Y_RES_NETBOOK;
+#endif
+
+final:
+	big_pixel_depth(sfb->fb->var.bits_per_pixel, smtc_scr_info.lfb_depth);
+}
+
 static int smtcfb_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	struct smtcfb_info *sfb;
 	struct fb_info *info;
-	u_long smem_size = 0x00800000;	/* default 8MB */
+	u_long smem_size;
 	int err;
 	unsigned long mmio_base;
 
···
 
 	sm7xx_init_hw();
 
-	/* get mode parameter from smtc_scr_info */
-	if (smtc_scr_info.lfb_width != 0) {
-		sfb->fb->var.xres = smtc_scr_info.lfb_width;
-		sfb->fb->var.yres = smtc_scr_info.lfb_height;
-		sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth;
-	} else {
-		/* default resolution 1024x600 16bit mode */
-		sfb->fb->var.xres = SCREEN_X_RES;
-		sfb->fb->var.yres = SCREEN_Y_RES;
-		sfb->fb->var.bits_per_pixel = SCREEN_BPP;
-	}
-
-	big_pixel_depth(sfb->fb->var.bits_per_pixel, smtc_scr_info.lfb_depth);
 	/* Map address and memory detection */
 	mmio_base = pci_resource_start(pdev, 0);
 	pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id);
+
+	smem_size = sm7xx_vram_probe(sfb);
+	dev_info(&pdev->dev, "%lu MiB of VRAM detected.\n",
+					smem_size / 1048576);
 
 	switch (sfb->chip_id) {
 	case 0x710:
 	case 0x712:
 		sfb->fb->fix.mmio_start = mmio_base + 0x00400000;
 		sfb->fb->fix.mmio_len = 0x00400000;
-		smem_size = SM712_VIDEOMEMORYSIZE;
 		sfb->lfb = ioremap(mmio_base, mmio_addr);
 		if (!sfb->lfb) {
 			dev_err(&pdev->dev,
···
 	case 0x720:
 		sfb->fb->fix.mmio_start = mmio_base;
 		sfb->fb->fix.mmio_len = 0x00200000;
-		smem_size = SM722_VIDEOMEMORYSIZE;
-		sfb->dp_regs = ioremap(mmio_base, 0x00a00000);
+		sfb->dp_regs = ioremap(mmio_base, 0x00200000 + smem_size);
 		sfb->lfb = sfb->dp_regs + 0x00200000;
 		sfb->mmio = (smtc_regbaseaddress =
 		    sfb->dp_regs + 0x000c0000);
···
 		goto failed_fb;
 	}
 
+	/* probe and decide resolution */
+	sm7xx_resolution_probe(sfb);
+
 	/* can support 32 bpp */
 	if (sfb->fb->var.bits_per_pixel == 15)
 		sfb->fb->var.bits_per_pixel = 16;
···
 	if (err)
 		goto failed;
 
-	smtcfb_setmode(sfb);
+	/*
+	 * The screen would be temporarily garbled when sm712fb takes over
+	 * vesafb or VGA text mode. Zero the framebuffer.
+	 */
+	memset_io(sfb->lfb, 0, sfb->fb->fix.smem_len);
 
 	err = register_framebuffer(info);
 	if (err < 0)

drivers/video/fbdev/udlfb.c

···
 	return 0;
 }
 
-static int dlfb_handle_damage(struct dlfb_data *dlfb, int x, int y,
-	       int width, int height, char *data)
+static int dlfb_handle_damage(struct dlfb_data *dlfb, int x, int y, int width, int height)
 {
 	int i, ret;
 	char *cmd;
···
 
 	start_cycles = get_cycles();
 
+	mutex_lock(&dlfb->render_mutex);
+
 	aligned_x = DL_ALIGN_DOWN(x, sizeof(unsigned long));
 	width = DL_ALIGN_UP(width + (x-aligned_x), sizeof(unsigned long));
 	x = aligned_x;
 
 	if ((width <= 0) ||
 	    (x + width > dlfb->info->var.xres) ||
-	    (y + height > dlfb->info->var.yres))
-		return -EINVAL;
+	    (y + height > dlfb->info->var.yres)) {
+		ret = -EINVAL;
+		goto unlock_ret;
+	}
 
-	if (!atomic_read(&dlfb->usb_active))
-		return 0;
+	if (!atomic_read(&dlfb->usb_active)) {
+		ret = 0;
+		goto unlock_ret;
+	}
 
 	urb = dlfb_get_urb(dlfb);
-	if (!urb)
-		return 0;
+	if (!urb) {
+		ret = 0;
+		goto unlock_ret;
+	}
 	cmd = urb->transfer_buffer;
 
 	for (i = y; i < y + height ; i++) {
···
 			*cmd++ = 0xAF;
 		/* Send partial buffer remaining before exiting */
 		len = cmd - (char *) urb->transfer_buffer;
-		ret = dlfb_submit_urb(dlfb, urb, len);
+		dlfb_submit_urb(dlfb, urb, len);
 		bytes_sent += len;
 	} else
 		dlfb_urb_completion(urb);
···
 		    >> 10)), /* Kcycles */
 		   &dlfb->cpu_kcycles_used);
 
-	return 0;
+	ret = 0;
+
+unlock_ret:
+	mutex_unlock(&dlfb->render_mutex);
+	return ret;
+}
+
+static void dlfb_init_damage(struct dlfb_data *dlfb)
+{
+	dlfb->damage_x = INT_MAX;
+	dlfb->damage_x2 = 0;
+	dlfb->damage_y = INT_MAX;
+	dlfb->damage_y2 = 0;
+}
+
+static void dlfb_damage_work(struct work_struct *w)
+{
+	struct dlfb_data *dlfb = container_of(w, struct dlfb_data, damage_work);
+	int x, x2, y, y2;
+
+	spin_lock_irq(&dlfb->damage_lock);
+	x = dlfb->damage_x;
+	x2 = dlfb->damage_x2;
+	y = dlfb->damage_y;
+	y2 = dlfb->damage_y2;
+	dlfb_init_damage(dlfb);
+	spin_unlock_irq(&dlfb->damage_lock);
+
+	if (x < x2 && y < y2)
+		dlfb_handle_damage(dlfb, x, y, x2 - x, y2 - y);
+}
+
+static void dlfb_offload_damage(struct dlfb_data *dlfb, int x, int y, int width, int height)
+{
+	unsigned long flags;
+	int x2 = x + width;
+	int y2 = y + height;
+
+	if (x >= x2 || y >= y2)
+		return;
+
+	spin_lock_irqsave(&dlfb->damage_lock, flags);
+	dlfb->damage_x = min(x, dlfb->damage_x);
+	dlfb->damage_x2 = max(x2, dlfb->damage_x2);
+	dlfb->damage_y = min(y, dlfb->damage_y);
+	dlfb->damage_y2 = max(y2, dlfb->damage_y2);
+	spin_unlock_irqrestore(&dlfb->damage_lock, flags);
+
+	schedule_work(&dlfb->damage_work);
 }
 
 /*
···
 				(u32)info->var.yres);
 
 		dlfb_handle_damage(dlfb, 0, start, info->var.xres,
-			lines, info->screen_base);
+			lines);
 	}
 
 	return result;
···
 
 	sys_copyarea(info, area);
 
-	dlfb_handle_damage(dlfb, area->dx, area->dy,
-			area->width, area->height, info->screen_base);
+	dlfb_offload_damage(dlfb, area->dx, area->dy,
+			area->width, area->height);
 }
 
 static void dlfb_ops_imageblit(struct fb_info *info,
···
 
 	sys_imageblit(info, image);
 
-	dlfb_handle_damage(dlfb, image->dx, image->dy,
-			image->width, image->height, info->screen_base);
+	dlfb_offload_damage(dlfb, image->dx, image->dy,
+			image->width, image->height);
 }
 
 static void dlfb_ops_fillrect(struct fb_info *info,
···
 
 	sys_fillrect(info, rect);
 
-	dlfb_handle_damage(dlfb, rect->dx, rect->dy, rect->width,
-			      rect->height, info->screen_base);
+	dlfb_offload_damage(dlfb, rect->dx, rect->dy, rect->width,
+			      rect->height);
 }
 
 /*
···
 	int bytes_identical = 0;
 	int bytes_rendered = 0;
 
+	mutex_lock(&dlfb->render_mutex);
+
 	if (!fb_defio)
-		return;
+		goto unlock_ret;
 
 	if (!atomic_read(&dlfb->usb_active))
-		return;
+		goto unlock_ret;
 
 	start_cycles = get_cycles();
 
 	urb = dlfb_get_urb(dlfb);
 	if (!urb)
-		return;
+		goto unlock_ret;
 
 	cmd = urb->transfer_buffer;
 
···
 	atomic_add(((unsigned int) ((end_cycles - start_cycles)
 		    >> 10)), /* Kcycles */
 		   &dlfb->cpu_kcycles_used);
+unlock_ret:
+	mutex_unlock(&dlfb->render_mutex);
 }
 
 static int dlfb_get_edid(struct dlfb_data *dlfb, char *edid, int len)
···
 		if (area.y > info->var.yres)
 			area.y = info->var.yres;
 
-		dlfb_handle_damage(dlfb, area.x, area.y, area.w, area.h,
-			   info->screen_base);
+		dlfb_handle_damage(dlfb, area.x, area.y, area.w, area.h);
 	}
 
 	return 0;
···
 static void dlfb_ops_destroy(struct fb_info *info)
 {
 	struct dlfb_data *dlfb = info->par;
+
+	cancel_work_sync(&dlfb->damage_work);
+
+	mutex_destroy(&dlfb->render_mutex);
 
 	if (info->cmap.len != 0)
 		fb_dealloc_cmap(&info->cmap);
···
 			pix_framebuffer[i] = 0x37e6;
 	}
 
-	dlfb_handle_damage(dlfb, 0, 0, info->var.xres, info->var.yres,
-			   info->screen_base);
+	dlfb_handle_damage(dlfb, 0, 0, info->var.xres, info->var.yres);
 
 	return 0;
 }
···
 	info->pseudo_palette = dlfb->pseudo_palette;
 	dlfb->ops = dlfb_ops;
 	info->fbops = &dlfb->ops;
+
+	mutex_init(&dlfb->render_mutex);
+	dlfb_init_damage(dlfb);
+	spin_lock_init(&dlfb->damage_lock);
+	INIT_WORK(&dlfb->damage_work, dlfb_damage_work);
 
 	INIT_LIST_HEAD(&info->modelist);
 

drivers/video/fbdev/uvesafb.c

···
 static ssize_t uvesafb_show_vbe_ver(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	return snprintf(buf, PAGE_SIZE, "%.4x\n", par->vbe_ib.vbe_version);
···
 static ssize_t uvesafb_show_vbe_modes(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 	int ret = 0, i;
 
···
 static ssize_t uvesafb_show_vendor(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_vendor_name_ptr)
···
 static ssize_t uvesafb_show_product_name(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_product_name_ptr)
···
 static ssize_t uvesafb_show_product_rev(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_product_rev_ptr)
···
 static ssize_t uvesafb_show_oem_string(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_string_ptr)
···
 static ssize_t uvesafb_show_nocrtc(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", par->nocrtc);
···
 static ssize_t uvesafb_store_nocrtc(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct fb_info *info = platform_get_drvdata(to_platform_device(dev));
+	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
 	if (count > 0) {

drivers/video/fbdev/vesafb.c

···
 		printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
 		if (pmi_base[3]) {
 			printk(KERN_INFO "vesafb: pmi: ports = ");
-				for (i = pmi_base[3]/2; pmi_base[i] != 0xffff; i++)
-					printk("%x ",pmi_base[i]);
+			for (i = pmi_base[3]/2; pmi_base[i] != 0xffff; i++)
+				printk("%x ", pmi_base[i]);
 			printk("\n");
 			if (pmi_base[i] != 0xffff) {
 				/*

drivers/video/fbdev/xen-fbfront.c

···
 	case XenbusStateClosed:
 		if (dev->state == XenbusStateClosed)
 			break;
-		/* Missed the backend's CLOSING state -- fallthrough */
+		/* fall through - Missed the backend's CLOSING state. */
 	case XenbusStateClosing:
 		xenbus_frontend_closed(dev);
 		break;

include/linux/amba/clcd.h

···
 struct amba_device;
 struct clk;
 
-/**
- * struct clcd_vendor_data - holds hardware (IP-block) vendor-specific
- * variant information
- *
- * @clock_timregs: the CLCD needs to be clocked when accessing the
- * timer registers, or the hardware will hang.
- * @packed_24_bit_pixels: this variant supports 24bit packed pixel data,
- * so that RGB accesses 3 bytes at a time, not just on even 32bit
- * boundaries, packing the pixel data in memory. ST Microelectronics
- * have this.
- * @st_bitmux_control: ST Microelectronics have implemented output
- * bit line multiplexing into the CLCD control register. This indicates
- * that we need to use this.
- * @init_board: custom board init function for this variant
- * @init_panel: custom panel init function for this variant
- */
-struct clcd_vendor_data {
-	bool	clock_timregs;
-	bool	packed_24_bit_pixels;
-	bool	st_bitmux_control;
-	int	(*init_board)(struct amba_device *adev,
-			      struct clcd_board *board);
-	int	(*init_panel)(struct clcd_fb *fb,
-			      struct device_node *panel);
-};
-
 /* this data structure describes each frame buffer device we find */
 struct clcd_fb {
 	struct fb_info		fb;
 	struct amba_device	*dev;
 	struct clk		*clk;
-	struct clcd_vendor_data	*vendor;
 	struct clcd_panel	*panel;
 	struct clcd_board	*board;
 	void			*board_data;
···
 			val |= CNTL_LCDBPP16_565;
 		else
 			val |= CNTL_LCDBPP16_444;
-		break;
-	case 24:
-		/* Modified variant supporting 24 bit packed pixels */
-		val |= CNTL_ST_LCDBPP24_PACKED;
 		break;
 	case 32:
 		val |= CNTL_LCDBPP24;

include/video/udlfb.h

···
 	int base8;
 	u32 pseudo_palette[256];
 	int blank_mode; /*one of FB_BLANK_ */
+	struct mutex render_mutex;
+	int damage_x;
+	int damage_y;
+	int damage_x2;
+	int damage_y2;
+	spinlock_t damage_lock;
+	struct work_struct damage_work;
 	struct fb_ops ops;
 	/* blit-only rendering path metrics, exposed through sysfs */
 	atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */