Re: [PATCH] backlight: pwm_bl: Improve bootloader/kernel device handover

2021-08-19 Thread Lee Jones
On Thu, 22 Jul 2021, Daniel Thompson wrote: > Currently there are (at least) two problems in the way pwm_bl starts > managing the enable_gpio pin. Both occur when the backlight is initially > off and the driver finds the pin not already in output mode and, as a > result, unconditionally switches i

[PATCH] backlight: pwm_bl: Improve bootloader/kernel device handover

2021-07-22 Thread Daniel Thompson
Currently there are (at least) two problems in the way pwm_bl starts managing the enable_gpio pin. Both occur when the backlight is initially off and the driver finds the pin not already in output mode and, as a result, unconditionally switches it to output-mode and asserts the signal. Problem 1: