linux-kernel - Re: [PATCH v2 29/43] drm/sun4i: Make pitch even for GEM dumb alloc as per hardware constraint

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Message-ID: <20181127090202.ksywle3ttojjbyms@flea>
Date:   Tue, 27 Nov 2018 10:02:02 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Chen-Yu Tsai <wens@...e.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-sunxi@...glegroups.com, Daniel Vetter <daniel@...ll.ch>
Subject: Re: [PATCH v2 29/43] drm/sun4i: Make pitch even for GEM dumb alloc
 as per hardware constraint

On Fri, Nov 23, 2018 at 10:25:01AM +0100, Paul Kocialkowski wrote:
> Our hardware requires the pitch to be an even number when using YUV
> formats with the frontend. Implement a driver-specific callback for GEM
> dumb allocation that sets the pitch accordingly.
> 
> Since only the bpp is passed (and not the format), we cannot really
> distinguish if this alignment is really required. Since it doesn't hurt
> to align the pitch anyway, always do it.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Applied, thanks!
Maxime

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

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