linux-kernel - Re: [PATCH v13 3/3] media: platform: mtk-mdp3: add Mediatek MDP3 driver

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Message-ID: <dda2de21-4d36-beb7-531c-9f5ea1534227@xs4all.nl>
Date:   Tue, 19 Apr 2022 08:34:47 +0200
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Moudy Ho <moudy.ho@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Rob Landley <rob@...dley.net>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Alexandre Courbot <acourbot@...omium.org>, tfiga@...omium.org,
        drinkcat@...omium.org, pihsun@...omium.org, hsinyi@...gle.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        daoyuan huang <daoyuan.huang@...iatek.com>,
        Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
        allen-kh.cheng@...iatek.com, xiandong.wang@...iatek.com,
        randy.wu@...iatek.com, jason-jh.lin@...iatek.com,
        roy-cw.yeh@...iatek.com, river.cheng@...iatek.com,
        srv_heupstream@...iatek.com,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v13 3/3] media: platform: mtk-mdp3: add Mediatek MDP3
 driver

Hi Moudy Ho,

On 18/04/2022 04:22, Moudy Ho wrote:
> This patch adds driver for Mediatek's Media Data Path ver.3 (MDP3).
> It provides the following functions:
>   color transform, format conversion, resize, crop, rotate, flip
>   and additional image quality enhancement.
> 
> The MDP3 driver is mainly used for Google Chromebook products to
> import the new architecture to set the HW settings as shown below:
>   User -> V4L2 framework
>     -> MDP3 driver -> SCP (setting calculations)
>       -> MDP3 driver -> CMDQ (GCE driver) -> HW
> 
> Each modules' related operation control is sited in mtk-mdp3-comp.c
> Each modules' register table is defined in file with "mdp_reg_" prefix
> GCE related API, operation control  sited in mtk-mdp3-cmdq.c
> V4L2 m2m device functions are implemented in mtk-mdp3-m2m.c
> Probe, power, suspend/resume, system level functions are defined in
> mtk-mdp3-core.c
> 
> v4l2-compliance SHA: not available
> , 32 bits, 32-bit time_t

This is an old v4l2-compliance (at least almost 2 years old based on this text).

Please compile v4l2-compliance from the v4l-utils git repo and make sure you
see a proper SHA value here. I don't accept v4l2-compliance results without a
valid SHA, since without that I can't tell which version you are testing with.

Regards,

	Hans