[PATCH v4] backlight: pwm_bl: Disable PWM on shutdown, suspend and remove

[Daniel Thompson]

On Mon, Oct 09, 2023 at 11:32:23AM +0200, Uwe Kleine-König wrote:
> Since commit 00e7e698bff1 ("backlight: pwm_bl: Configure pwm only once
> per backlight toggle") calling pwm_backlight_power_off() doesn't disable
> the PWM any more. However this is necessary to suspend because PWM
> drivers usually refuse to suspend if they are still enabled.
>
> Also adapt shutdown and remove callbacks to disable the PWM for similar
> reasons.
>
> Fixes: 00e7e698bff1 ("backlight: pwm_bl: Configure pwm only once per backlight toggle")
> Reported-by: Aisheng Dong <aisheng.dong at nxp.com>
> Tested-by: Aisheng Dong <aisheng.dong at nxp.com>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>

Reviewed-by: Daniel Thompson <daniel.thompson at linaro.org>


Daniel.