u-boot/arch
Gabe Black 34b5ee1f6a Exynos: Avoid a divide by zero by specifying a non-zero period for pwm 4
The pwm_config function in the exynos pwm driver divides by its period
period parameter. A function was calling pwm_config with a 0ns period and a
0ns duty cycle. That doesn't actually make any sense physically, and results
in a divide by zero in the driver. This change changes the parameters to be a
100000ns period and duty cycle.

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-04-01 14:02:08 +09:00
..
arm Exynos: Avoid a divide by zero by specifying a non-zero period for pwm 4 2013-04-01 14:02:08 +09:00
avr32 Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
blackfin Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
m68k Declare watchdog functions in watchdog.h 2013-03-15 16:13:59 -04:00
microblaze Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
mips Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
nds32 Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
nios2 Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
openrisc Introduce generic link section.h symbol files 2013-03-15 16:13:58 -04:00
powerpc Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
sandbox Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
sh Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
sparc sparc: Fix build warnings in serial.c 2013-03-15 16:14:02 -04:00
x86 Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-03-18 14:37:18 -04:00
.gitignore update include/asm/ gitignore after move 2010-05-07 00:17:30 +02:00