From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anatolij Gustschin <agust@denx.de>
Date: Tue, 2 Jul 2019 23:04:31 +0200
Subject: [U-Boot] [PATCH v2] video: backlight: fix pwm invertation
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On Tue, 02 Jul 2019 22:08:33 +0200
marvin24 at posteo.de marvin24 at posteo.de wrote:

> Fixes: 57e7775413 ("video: backlight: Parse PWM polarity cell")
> 
> set_pwm will always fail with -ENOSYS if pwm_set_invert is not implemented,
> leaving the backlight dark. Fix this by returning no error if
> pwm_set_invert is not implemented and no polarity change is requested.
> 
> v2: simplify logic
> 
> Signed-off-by: Marc Dietrich <marvin24@gmx.de>

Reviewed-by: Anatolij Gustschin <agust@denx.de>