On Thu, Jun 08, 2023 at 04:11:14PM +0200, Philipp Zabel wrote: > The initial PWM state returned by pwm_init_state() has a duty cycle > of 0 ns. To avoid backlight flicker when taking over an enabled > display from the bootloader, skip the initial pwm_apply_state() > and leave the PWM be until backlight_update_state() will apply the > state with the desired brightness. backlight_update_state() uses pwm_get_state() to update the PWM. Without applying something that came from pwm_init_state() then we will never adopt the reference values from pwm->args. Daniel.
