linux-kernel - Re: [PATCH v4 07/22] drm/sun4i: frontend: Configure and enable YUV to RGB CSC when needed

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Message-ID: <20181205153837.bysyrgxibuaiiwi2@flea>
Date:   Wed, 5 Dec 2018 16:38:37 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        David Airlie <airlied@...ux.ie>, Chen-Yu Tsai <wens@...e.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <sean@...rly.run>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-sunxi@...glegroups.com, Daniel Vetter <daniel@...ll.ch>
Subject: Re: [PATCH v4 07/22] drm/sun4i: frontend: Configure and enable YUV
 to RGB CSC when needed

On Wed, Dec 05, 2018 at 09:36:48AM +0100, Paul Kocialkowski wrote:
> In prevision of adding support for YUV formats, set the YUV to RGB
> colorspace conversion coefficients if required and don't bypass the
> CSC engine when converting.
> 
> The BT601 coefficients from the A33 BSP are copied over from the backend
> code. Because of module inter-dependency, we can't have the frontend use
> these coefficients from the backend directly.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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