linux-kernel - Re: [PATCH] gpu: ipu-v3: image-convert: Enable double write reduction

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Message-ID: <1560521523.18257.3.camel@pengutronix.de>
Date:   Fri, 14 Jun 2019 16:12:03 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Steve Longerbeam <slongerbeam@...il.com>
Cc:     "open list:DRM DRIVERS FOR FREESCALE IMX" 
        <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gpu: ipu-v3: image-convert: Enable double write
 reduction

On Thu, 2019-06-13 at 18:02 -0700, Steve Longerbeam wrote:
> For the write channels with 4:2:0 subsampled YUV formats, avoid chroma
> overdraw by only writing chroma for even lines (skip odd chroma rows).
> This reduces necessary write memory bandwidth by at least 25% (more
> with rotation enabled).
> 
> Signed-off-by: Steve Longerbeam <slongerbeam@...il.com>

Applied on imx-drm/next, thanks!

regards
Philipp