[PATCH v2] backlight: pwm_bl: Disable PWM on shutdown and suspend

Tue Sep 26 08:53:36 UTC 2023

On Tue, Sep 26, 2023 at 10:46:12AM +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 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 <asheng.dong at nxp.com>

The two email addresses should actually be identical, the first one is
the right one. (Failure introduced by
https://lore.kernel.org/dri-devel/DB9PR04MB8477D4BBF1B31035789DA08680869@DB9PR04MB8477.eurprd04.prod.outlook.com
and picked up by b4.) Lee, can you fixup or should I resend?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |
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