linux-kernel - Re: [PATCH] regulator: rpi-panel-attiny: Use backlight helper

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Message-ID: <20220608150738.xxpk4pvj6w3w3dm4@maple.lan>
Date:   Wed, 8 Jun 2022 16:07:38 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Stephen Kitt <steve@....org>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regulator: rpi-panel-attiny: Use backlight helper

On Tue, Jun 07, 2022 at 08:53:04PM +0200, Stephen Kitt wrote:
> backlight_properties.fb_blank is deprecated. The states it represents
> are handled by other properties; but instead of accessing those
> properties directly, drivers should use the helpers provided by
> backlight.h.
> 
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
> 
> Signed-off-by: Stephen Kitt <steve@....org>
> Cc: Liam Girdwood <lgirdwood@...il.com>
> Cc: Mark Brown <broonie@...nel.org>

Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>


Daniel.