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| H A D | pwm_backlight.c | f462f55341ba7573a4d61a1c7fdb0d78c96f13df Fri Mar 16 10:01:22 UTC 2018 David Wu <david.wu@rock-chips.com> video: pwm_backlight: support PWM polarity setting
The latest kernel PWM drivers enable the polarity settings. When system
run from U-Boot to kerenl, if there are differences in polarity set or
duty cycle, the PMW will re-init:
close -> set polarity and duty cycle -> enable the PWM.
The pwm_backlight would be unstable, might be screen flashing.
Change-Id: I7c026c9756e013f0ac99e43b09b633dc83268ce9
Signed-off-by: David Wu <david.wu@rock-chips.com>
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