linux-kernel - Re: (subset) [PATCH v3 07/14] sun4i/drm: backend: use mode

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Message-Id: <165097689885.514433.13950094495953016224.b4-ty@cerno.tech>
Date:   Tue, 26 Apr 2022 14:41:36 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Chen-Yu Tsai <wens@...e.org>, Maxime Ripard <mripard@...nel.org>,
        Samuel Holland <samuel@...lland.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>
Cc:     Maxime Ripard <maxime@...no.tech>, David Airlie <airlied@...ux.ie>,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Daniel Vetter <daniel@...ll.ch>, linux-sunxi@...ts.linux.dev,
        dri-devel@...ts.freedesktop.org,
        Krzysztof Kozlowski <krzk+dt@...nel.org>
Subject: Re: (subset) [PATCH v3 07/14] sun4i/drm: backend: use mode_set engine callback

On Sun, 24 Apr 2022 11:26:25 -0500, Samuel Holland wrote:
> From: Jernej Skrabec <jernej.skrabec@...il.com>
> 
> Newly introduced mode_set callback in engine structure is a much better
> place for setting backend output size and interlace mode for following
> reasons:
> 1. Aforementioned properties change only when mode changes, so it's
>    enough to be set only once per mode set. Currently it's done whenever
>    properties of primary plane are changed.
> 2. It's assumed that primary plane will always cover whole screen. While
>    this is true most of the time, it's not always. Planes are universal.
>    There is no reason to add artificial limitation to primary plane.
> 
> [...]

Applied to drm/drm-misc (drm-misc-next).

Thanks!
Maxime