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
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aty
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
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omap2	ARM: OMAP: Fix drivers to depend on omap for internal devices	2012-12-16 15:23:37 -08:00
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68328fb.c
acornfb.c
acornfb.h
amba-clcd.c
amifb.c
arcfb.c
arkfb.c
asiliantfb.c
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atafb_iplan2p4.c
atafb_iplan2p8.c
atafb_mfb.c
atafb_utils.h
atafb.c
atafb.h
atmel_lcdfb.c
au1100fb.c
au1100fb.h
au1200fb.c
au1200fb.h
auo_k190x.c
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auo_k1900fb.c
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bf54x-lq043fb.c
bf537-lq035.c
bfin_adv7393fb.c
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bfin-lq035q1-fb.c
bfin-t350mcqb-fb.c
broadsheetfb.c
bt431.h
bt455.h
bw2.c
c2p_core.h
c2p_iplan2.c
c2p_planar.c
c2p.h
carminefb_regs.h
carminefb.c
carminefb.h
cfbcopyarea.c
cfbfillrect.c
cfbimgblt.c
cg3.c
cg6.c
cg14.c
chipsfb.c
cirrusfb.c
clps711xfb.c
cobalt_lcdfb.c
controlfb.c
controlfb.h
cyber2000fb.c
cyber2000fb.h
da8xx-fb.c
dnfb.c
edid.h
efifb.c
ep93xx-fb.c
fb_ddc.c
fb_defio.c
fb_draw.h
fb_notify.c
fb_sys_fops.c
fb-puv3.c
fbcmap.c
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fbmem.c
fbmon.c
fbsysfs.c
ffb.c
fm2fb.c
fsl-diu-fb.c
g364fb.c
gbefb.c
grvga.c
gxt4500.c
hecubafb.c
hgafb.c
hitfb.c
hpfb.c
i740_reg.h
i740fb.c
igafb.c
imsttfb.c
imxfb.c
jz4740_fb.c
Kconfig
leo.c
macfb.c
macmodes.c
macmodes.h
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maxinefb.c
metronomefb.c
modedb.c
mx3fb.c
mxsfb.c
n411.c
neofb.c
nuc900fb.c
nuc900fb.h
offb.c
output.c
p9100.c
platinumfb.c
platinumfb.h
pm2fb.c
pm3fb.c
pmag-aa-fb.c
pmag-ba-fb.c
pmagb-b-fb.c
ps3fb.c
pvr2fb.c
pxa3xx-gcu.c
pxa3xx-gcu.h
pxa168fb.c
pxa168fb.h
pxafb.c
pxafb.h
q40fb.c
s1d13xxxfb.c
s3c2410fb.c
s3c2410fb.h
s3c-fb.c
s3fb.c
sa1100fb.c
sa1100fb.h
sbuslib.c
sbuslib.h
sgivwfb.c
sh7760fb.c
sh_mipi_dsi.c
sh_mobile_hdmi.c
sh_mobile_lcdcfb.c
sh_mobile_lcdcfb.h
sh_mobile_meram.c
skeletonfb.c
sm501fb.c
smscufx.c
ssd1307fb.c
sstfb.c
sticore.h
stifb.c
sunxvr500.c
sunxvr1000.c
sunxvr2500.c
svgalib.c
syscopyarea.c
sysfillrect.c
sysimgblt.c
tcx.c
tdfxfb.c
tgafb.c
tmiofb.c
tridentfb.c
udlfb.c
uvesafb.c
valkyriefb.c
valkyriefb.h
vesafb.c
vfb.c
vga16fb.c
vgastate.c
vt8500lcdfb.c
vt8500lcdfb.h
vt8623fb.c
w100fb.c
w100fb.h
wm8505fb_regs.h
wm8505fb.c
wmt_ge_rops.c
wmt_ge_rops.h
xen-fbfront.c
xilinxfb.c