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Marko Katic 1581b088fc backlight: corgi_lcd: Use gpio_set_value_cansleep() to avoid WARN_ON 
Changing backlight intensity on an Akita (Sharp Zaurus C-1000) triggers
WARN_ON message:

  WARNING: at drivers/gpio/gpiolib.c:1672 __gpio_set_value+0x38/0xa4()
  Modules linked in:
  Backtrace:
    corgi_bl_set_intensity+0x0/0x74
    corgi_bl_update_status+0x0/0x64
    corgi_lcd_probe+0x0/0x258
    spi_drv_probe+0x0/0x24
    driver_probe_device+0x0/0x208
    __driver_attach+0x0/0x94
    bus_for_each_dev+0x0/0x90
    driver_attach+0x0/0x28
    bus_add_driver+0x0/0x22c
    driver_register+0x0/0x134
    spi_register_driver+0x0/0x60
    corgi_lcd_driver_init+0x0/0x1c
    do_one_initcall+0x0/0x174
    kernel_init+0x0/0x2a8

Akita machines have backlight controls hooked to a gpio expander chip,
max7310 using i2c transfers which can sleep.  In this case,
pca953x_gpio_set_value() can be called to control gpio, and
pca953x_setup_gpio() sets can_sleep flag.  Therefore,
gpio_set_value_cansleep() should be used in order to avoid WARN_ON on
akita machines.

Akita is the only exception in this case since other users of corgi_lcd
access backlight gpio controls through a different gpio expander which
does not set the can_sleep flag.

Signed-off-by: Marko Katic <dromede@gmail.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:17 -08:00
..
aty
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
backlight
backlight: corgi_lcd: Use gpio_set_value_cansleep() to avoid WARN_ON
2012-12-17 17:15:17 -08:00
console
fbdev changes for 3.8:
2012-12-15 13:03:48 -08:00
exynos
video: exynos_dp: remove redundant parameters
2012-11-29 10:33:28 +09:00
geode
sections: fix section conflicts in drivers/video
2012-10-06 03:04:44 +09:00
i810
sections: fix section conflicts in drivers/video
2012-10-06 03:04:44 +09:00
intelfb
drivers/video/intelfb/intelfbdrv.c: add missing agp_backend_release
2012-05-13 13:05:24 +00:00
kyro
kyrofb: fix on x86_64
2012-04-08 14:27:08 +00:00
logo
module_param: make bool parameters really bool (drivers & misc)
2012-01-13 09:32:20 +10:30
matrox
i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING
2012-05-30 10:55:34 +02:00
mb862xx
drivers/video/mb862xx/mb862xxfbdrv.c: fix error return code
2012-09-22 21:41:51 +00:00
mbx
video: mbxfb: Include linux/io.h instead of asm/io.h
2012-09-22 21:19:38 +00:00
msm
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
nvidia
drivers/video/nvidia/nvidia.c: fix warning
2012-01-12 20:13:03 -08:00
omap
ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
2012-11-30 08:41:50 -08:00
omap2
ARM: OMAP: Fix drivers to depend on omap for internal devices
2012-12-16 15:23:37 -08:00
riva
riva/fbdev: fix several -Wuninitialized
2012-02-13 02:59:14 +00:00
savage
drivers/video/savage/savagefb_driver.c: fix error return code
2012-10-10 02:06:18 +00:00
sis
drivers/video/sis/initextlfb.c: removes unnecessary semicolon
2012-09-22 21:35:41 +00:00
vermilion
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
via
viafb: don't touch clock state on OLPC XO-1.5
2012-09-22 21:31:01 +00:00
68328fb.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
acornfb.c
acornfb: use display information in info not in var for panning
2011-08-19 10:29:34 +02:00
acornfb.h
…
amba-clcd.c
fbdev: amba: Enable module alias autogeneration for AMBA drivers
2011-11-22 10:58:33 +00:00
amifb.c
fbdev/amifb: Remove write-only variable amifb_inverse
2012-08-23 13:19:46 +00:00
arcfb.c
drivers/video/arcfb.c: fix error return code
2012-09-22 21:41:53 +00:00
arkfb.c
arkfb: use display information in info not in var for panning
2011-08-19 10:29:44 +02:00
asiliantfb.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
atafb_iplan2p2.c
…
atafb_iplan2p4.c
…
atafb_iplan2p8.c
…
atafb_mfb.c
…
atafb_utils.h
…
atafb.c
m68k/atari: Do not use "/" in interrupt names
2011-05-19 18:19:10 +02:00
atafb.h
…
atmel_lcdfb.c
arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
2012-11-06 20:29:33 +08:00
au1100fb.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-05-22 19:22:50 -07:00
au1100fb.h
fb: fix au1100fb bitrot.
2011-10-03 15:52:38 +00:00
au1200fb.c
fbdev: fix au1*fb builds
2012-04-08 14:27:09 +00:00
au1200fb.h
…
auo_k190x.c
drivers/video/auo_k190x.c: drop kfree of devm_kzalloc's data
2012-08-23 12:32:09 +00:00
auo_k190x.h
video: auo_k190x: add code shared by controller drivers
2012-04-29 19:35:35 +00:00
auo_k1900fb.c
video: auo_k190x: add driver for AUO-K1900 variant
2012-04-29 19:35:40 +00:00
auo_k1901fb.c
video: auo_k190x: add driver for AUO-K1901 variant
2012-04-29 19:35:42 +00:00
bf54x-lq043fb.c
video: bf*: Add missing spinlock init
2012-09-22 21:35:02 +00:00
bf537-lq035.c
drivers/video/bf537-lq035.c: use devm_ functions
2012-08-23 12:59:58 +00:00
bfin_adv7393fb.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-07-24 13:34:56 -07:00
bfin_adv7393fb.h
Fix common misspellings
2011-03-31 11:26:23 -03:00
bfin-lq035q1-fb.c
video: bf*: Add missing spinlock init
2012-09-22 21:35:02 +00:00
bfin-t350mcqb-fb.c
video: bf*: Add missing spinlock init
2012-09-22 21:35:02 +00:00
broadsheetfb.c
drivers/video: use correct __devexit_p annotation
2012-06-09 12:51:11 +00:00
bt431.h
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
bt455.h
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
bw2.c
drivers/video/bw2.c: fix error return code
2012-09-22 21:41:52 +00:00
c2p_core.h
fbdev: c2p/atafb - Add support for Atari interleaved bitplanes
2009-01-12 20:56:31 +01:00
c2p_iplan2.c
fbdev: c2p/atafb - Add support for Atari interleaved bitplanes
2009-01-12 20:56:31 +01:00
c2p_planar.c
fbdev: c2p - Rename c2p to c2p_planar
2009-01-12 20:56:32 +01:00
c2p.h
fbdev: c2p - Rename c2p to c2p_planar
2009-01-12 20:56:32 +01:00
carminefb_regs.h
…
carminefb.c
video: Add module.h to drivers/video files who really use it.
2011-10-31 19:31:33 -04:00
carminefb.h
…
cfbcopyarea.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
cfbfillrect.c
fbdev: fix fillrect for 24bpp modes
2009-05-06 16:36:10 -07:00
cfbimgblt.c
…
cg3.c
drivers/video/cg3.c: fix error return code
2012-09-22 21:41:51 +00:00
cg6.c
video: add missing framebuffer_release in error path
2011-03-22 16:35:44 +09:00
cg14.c
video: add missing framebuffer_release in error path
2011-03-22 16:35:44 +09:00
chipsfb.c
console: rename acquire/release_console_sem() to console_lock/unlock()
2011-01-26 10:50:06 +10:00
cirrusfb.c
video: Fix typo in drivers/video
2012-07-24 12:58:15 +02:00
clps711xfb.c
ARM: clps711x: Moving backlight controls of framebuffer driver to the board
2012-11-21 09:57:45 -08:00
cobalt_lcdfb.c
drivers/video/cobalt_lcdfb.c: use devm_ functions
2012-08-23 12:59:02 +00:00
controlfb.c
Drivers: video: controlfb: fixed a brace coding style issue
2011-11-22 01:00:16 +00:00
controlfb.h
…
cyber2000fb.c
drivers/video/cyber2000fb.c: fix error return code
2012-09-22 21:41:52 +00:00
cyber2000fb.h
VIDEO: cyberpro: remove unused cyber2000fb_get_fb_var()
2011-02-11 10:16:07 +00:00
da8xx-fb.c
da8xx: Fix revision check on the da8xx driver
2012-12-04 11:19:41 +02:00
dnfb.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
edid.h
video: Fix EDID macros H_SYNC_WIDTH and H_SYNC_OFFSET
2011-03-22 16:45:03 +09:00
efifb.c
efifb: Skip DMI checks if the bootloader knows what it's doing
2012-09-17 13:29:23 +01:00
ep93xx-fb.c
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
fb_ddc.c
video: Add module.h to drivers/video files who really use it.
2011-10-31 19:31:33 -04:00
fb_defio.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
fb_draw.h
fbdev: Make pixel_to_pat() failure mode more friendly
2012-07-29 12:25:06 +00:00
fb_notify.c
video: Add export.h for THIS_MODULE/EXPORT_SYMBOL to drivers/video
2011-10-31 19:31:33 -04:00
fb_sys_fops.c
…
fb-puv3.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
fbcmap.c
framebuffer: fix fbcmap.c kernel-doc warning
2010-11-26 15:05:08 +09:00
fbcvt.c
Update broken web addresses in the kernel.
2010-10-18 11:03:14 +02:00
fbmem.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
fbmon.c
fbdev: fix parsing of standard timings
2011-09-01 00:31:05 +00:00
fbsysfs.c
fb: handle NULL pointers in framebuffer release
2012-05-29 13:00:03 +00:00
ffb.c
video: ffb: fix ffb_probe error path
2011-03-22 16:18:51 +09:00
fm2fb.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
fsl-diu-fb.c
drivers/video: fsl-diu-fb: store EDID data in the global object
2012-11-26 13:41:20 -06:00
g364fb.c
g364fb: use display information in info not in var for panning
2011-08-19 10:31:09 +02:00
gbefb.c
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
grvga.c
grvga: Fix error handling issues
2012-07-08 14:03:17 +00:00
gxt4500.c
sections: fix section conflicts in drivers/video
2012-10-06 03:04:44 +09:00
hecubafb.c
hecubafb: add module_put on error path in hecubafb_probe()
2011-06-24 17:00:39 +09:00
hgafb.c
module_param: make bool parameters really bool (drivers & misc)
2012-01-13 09:32:20 +10:30
hitfb.c
hitfb: fix sections
2010-05-25 08:07:09 -07:00
hpfb.c
video: hpfb: Fix error handling
2012-09-22 21:16:20 +00:00
i740_reg.h
Resurrect Intel740 driver: i740fb
2012-02-15 04:31:21 +00:00
i740fb.c
video: Fix typo in drivers/video
2012-07-24 12:58:15 +02:00
igafb.c
doc: fix broken references
2011-09-27 18:08:04 +02:00
imsttfb.c
imsttfb: use display information in info not in var for panning
2011-08-19 10:31:39 +02:00
imxfb.c
video: imxfb: remove cpu_is_xxx by using platform_device_id
2012-10-15 10:05:42 +08:00
jz4740_fb.c
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
Kconfig
drivers/video: add support for the Solomon SSD1307 OLED Controller
2012-12-10 11:33:53 +02:00
leo.c
dt/video: Eliminate users of of_platform_{,un}register_driver
2011-02-28 13:22:45 -07:00
macfb.c
macfb: fix black and white modes
2012-01-22 14:50:02 +01:00
macmodes.c
fbdev: add some missing mac modes
2010-02-27 18:31:14 +01:00
macmodes.h
…
Makefile
drivers/video: add support for the Solomon SSD1307 OLED Controller
2012-12-10 11:33:53 +02:00
maxinefb.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
metronomefb.c
video: Convert vmalloc/memset to vzalloc
2011-06-02 17:25:35 +09:00
modedb.c
fbdev: fix indentation in modedb.c
2011-09-14 16:40:52 +00:00
mx3fb.c
video: mx3fb: remove unneeded mach/hardware.h inclusion
2012-10-15 10:03:14 +08:00
mxsfb.c
video: mxsfb: add simple device tree probe
2012-07-03 13:22:37 +08:00
n411.c
…
neofb.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
nuc900fb.c
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
nuc900fb.h
ARM: w90x900: move platform_data definitions
2012-09-14 11:18:59 +02:00
offb.c
offb: Fix setting of the pseudo-palette for >8bpp
2012-01-03 12:09:25 +11:00
output.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
p9100.c
dt/video: Eliminate users of of_platform_{,un}register_driver
2011-02-28 13:22:45 -07:00
platinumfb.c
video: platinumfb: Add __devexit_p at necessary place
2011-10-15 00:19:58 +00:00
platinumfb.h
…
pm2fb.c
module_param: make bool parameters really bool (drivers & misc)
2012-01-13 09:32:20 +10:30
pm3fb.c
module_param: make bool parameters really bool (drivers & misc)
2012-01-13 09:32:20 +10:30
pmag-aa-fb.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
pmag-ba-fb.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
pmagb-b-fb.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
ps3fb.c
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
pvr2fb.c
drivers/video/pvr2fb.c: ensure arguments to request_irq and free_irq are compatible
2012-03-13 23:17:31 +00:00
pxa3xx-gcu.c
video: pxa3xx-gcu: Simplify the logic to exit while loop in pxa3xx_gcu_wait_idle
2012-04-09 16:18:15 +00:00
pxa3xx-gcu.h
video: add driver for PXA3xx 2D graphics accelerator
2010-12-16 14:31:18 +08:00
pxa168fb.c
drivers/video/pxa168fb.c: use devm_ functions
2012-02-24 00:49:59 +00:00
pxa168fb.h
fb: add support of LCD display controller on pxa168/910 (base layer)
2009-06-13 00:09:09 +08:00
pxafb.c
ARM: pxa: move platform_data definitions
2012-09-14 11:18:10 +02:00
pxafb.h
ARM: pxafb: rework pxafb overlay memory management
2011-03-16 17:37:03 +08:00
q40fb.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
s1d13xxxfb.c
s1d13xxxfb: drop unused code
2010-12-21 01:05:43 +09:00
s3c2410fb.c
video: s3c2410: fix checkpatch warnings
2012-09-22 21:37:56 +00:00
s3c2410fb.h
s3c-fb: CPUFREQ frequency scaling support
2009-06-16 19:47:59 -07:00
s3c-fb.c
video: s3c-fb: fix red offset and length for ARGB232 format
2012-11-26 13:35:36 +09:00
s3fb.c
s3fb: Add Virge/MX (86C260)
2012-07-08 14:03:50 +00:00
sa1100fb.c
FB: sa11x0: convert to use platform resource and ioremap()
2012-02-24 09:39:59 +00:00
sa1100fb.h
FB: sa11x0: convert to use platform resource and ioremap()
2012-02-24 09:39:59 +00:00
sbuslib.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
sbuslib.h
…
sgivwfb.c
sgivwfb: fix sections
2010-05-25 08:07:09 -07:00
sh7760fb.c
video: convert drivers/video/* to use module_platform_driver()
2011-12-03 22:08:42 +00:00
sh_mipi_dsi.c
fbdev: sh_mipi_dsi: Remove last reference to LCDC platform data
2012-11-21 15:50:01 +01:00
sh_mobile_hdmi.c
fbdev: sh_mobile_hdmi: add HDMI Control Register support
2012-05-13 13:07:59 +00:00
sh_mobile_lcdcfb.c
fbdev: sh_mobile_lcdc: Make sh_mobile_lcdc_sys_bus_ops static
2012-11-21 15:50:02 +01:00
sh_mobile_lcdcfb.h
fbdev: sh_mobile_lcdc: Store the backlight brightness internally
2012-11-21 15:50:01 +01:00
sh_mobile_meram.c
sh_mobile_meram: Add direct MERAM allocation API
2012-07-19 02:05:22 +02:00
skeletonfb.c
skeletonfb: fixed module exit function typo.
2012-04-15 21:44:02 +00:00
sm501fb.c
video: convert drivers/video/* to use module_platform_driver()
2011-12-03 22:08:42 +00:00
smscufx.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
ssd1307fb.c
drivers/video: add support for the Solomon SSD1307 OLED Controller
2012-12-10 11:33:53 +02:00
sstfb.c
module_param: make bool parameters really bool (drivers & misc)
2012-01-13 09:32:20 +10:30
sticore.h
Fix common misspellings
2011-03-31 11:26:23 -03:00
stifb.c
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
sunxvr500.c
drivers/video/sunxvr500.c: fix error return code
2012-09-22 21:41:51 +00:00
sunxvr1000.c
drivers/video/sunxvr1000.c: fix error return code
2012-09-22 21:41:51 +00:00
sunxvr2500.c
drivers/video/sunxvr2500.c: fix error return code
2012-08-23 13:21:48 +00:00
svgalib.c
svga: Make svga_set_timings() take an iomem regbase pointer.
2011-03-22 15:47:22 +09:00
syscopyarea.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
sysfillrect.c
fbdev: fix fillrect for 24bpp modes
2009-05-06 16:36:10 -07:00
sysimgblt.c
…
tcx.c
video: add missing framebuffer_release in error path
2011-03-22 16:35:44 +09:00
tdfxfb.c
module_param: make bool parameters really bool (drivers & misc)
2012-01-13 09:32:20 +10:30
tgafb.c
fix typos concerning "initiali[zs]e"
2010-06-16 18:05:05 +02:00
tmiofb.c
tmiofb: missing NULL pointer checks
2012-09-01 08:51:03 -07:00
tridentfb.c
tridentfb: use display information in info not in var for panning
2011-08-19 10:35:18 +02:00
udlfb.c
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
uvesafb.c
video:uvesafb: check the return value of kzalloc
2012-08-23 13:18:08 +00:00
valkyriefb.c
video: Fix speficied typo
2011-06-24 17:14:39 +09:00
valkyriefb.h
valkyriefb: various fixes
2010-02-27 18:31:13 +01:00
vesafb.c
vesafb: fix memory leak
2011-07-04 16:02:48 +09:00
vfb.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
vga16fb.c
vga16fb: use display information in info not in var for panning
2011-08-19 10:35:34 +02:00
vgastate.c
…
vt8500lcdfb.c
ARM: soc: multiplatform enablement
2012-10-01 19:11:38 -07:00
vt8500lcdfb.h
ARM: Add support for the display controllers in VT8500 and WM8505
2010-11-09 18:52:07 +09:00
vt8623fb.c
vt8623fb: use display information in info not in var for panning
2011-08-19 10:36:20 +02:00
w100fb.c
video: w100fb: Reduce sleep mode battery discharge
2012-07-08 14:03:02 +00:00
w100fb.h
…
wm8505fb_regs.h
ARM: Add support for the display controllers in VT8500 and WM8505
2010-11-09 18:52:07 +09:00
wm8505fb.c
ARM: soc: multiplatform enablement
2012-10-01 19:11:38 -07:00
wmt_ge_rops.c
video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb
2012-09-21 19:23:56 +12:00
wmt_ge_rops.h
ARM: Add support for the display controllers in VT8500 and WM8505
2010-11-09 18:52:07 +09:00
xen-fbfront.c
xen-fbfront: handle backend CLOSED without CLOSING
2012-10-30 09:28:17 -04:00
xilinxfb.c
video: convert drivers/video/* to use module_platform_driver()
2011-12-03 22:08:42 +00:00