linux-kernel - Re: [PATCH v2] drm: shmobile: Use backlight helper

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Message-ID: <YrYU2KEubtR+pmkO@ravnborg.org>
Date:   Fri, 24 Jun 2022 21:47:36 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Stephen Kitt <steve@....org>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        David Airlie <airlied@...ux.ie>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v2] drm: shmobile: Use backlight helper

On Thu, Jun 16, 2022 at 07:08:21PM +0200, Stephen Kitt wrote:
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
> 
> 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: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: dri-devel@...ts.freedesktop.org
Thanks, added to drm-misc (drm-misc-next)

	Sam