linux-kernel - Re: [PATCH 3/3] gpu: ipu-v3: image-convert: Fix image downsize coefficients

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Message-ID: <1560521504.18257.2.camel@pengutronix.de>
Date:   Fri, 14 Jun 2019 16:11:44 +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 3/3] gpu: ipu-v3: image-convert: Fix image downsize
 coefficients

On Tue, 2019-06-11 at 18:16 -0700, Steve Longerbeam wrote:
> The output of the IC downsizer unit in both dimensions must be <= 1024
> before being passed to the IC resizer unit. This was causing corrupted
> images when:
> 
> input_dim > 1024, and
> input_dim / 2 < output_dim < input_dim
> 
> Some broken examples were 1920x1080 -> 1024x768 and 1920x1080 ->
> 1280x1080.
> 
> Fixes: 70b9b6b3bcb21 ("gpu: ipu-v3: image-convert: calculate per-tile
> resize coefficients")
> 
> Signed-off-by: Steve Longerbeam <slongerbeam@...il.com>

All applied on the imx-drm/fixes branch.

regards
Philipp