linux-kernel - Re: [PATCH v4, 1/3] dt-bindings: media: mtk-vcodec: Separating mtk vcodec encoder node

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Date:   Sat, 27 Mar 2021 09:07:50 -0600
From:   Rob Herring <robh@...nel.org>
To:     Irui Wang <irui.wang@...iatek.com>
Cc:     devicetree@...r.kernel.org,
        Alexandre Courbot <acourbot@...omium.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Longfei Wang <longfei.wang@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        linux-media@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tomasz Figa <tfiga@...gle.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        yong.wu@...iatek.com, srv_heupstream@...iatek.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4, 1/3] dt-bindings: media: mtk-vcodec: Separating mtk
 vcodec encoder node

On Thu, 25 Mar 2021 20:26:23 +0800, Irui Wang wrote:
> Updates binding document since the avc and vp8 hardware encoder in
> MT8173 are now separated. Separate "mediatek,mt8173-vcodec-enc" to
> "mediatek,mt8173-vcodec-enc-vp8" and "mediatek,mt8173-vcodec-enc".
> 
> This patch is not a compatible change, but we must do this modifaction
> because MediaTek IOMMU add the device_link between the smi-larb
> device and venc_device, if the venc device call the pm_runtime_get_sync,
> the smi-larb's pm_runtime_get_sync also be called automatically.
> 
> There is a bit of backward compatibility for avc encoder, the avc
> encoder device node still has compatible "mediatek,mt8173-vcodec-enc".
> 
> Acked-by: Tiffany Lin <tiffany.lin@...iatek.com>
> Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
> Signed-off-by: Maoguang Meng <maoguang.meng@...iatek.com>
> Signed-off-by: Irui Wang <irui.wang@...iatek.com>
> ---
>  .../bindings/media/mediatek-vcodec.txt        | 55 ++++++++++---------
>  1 file changed, 29 insertions(+), 26 deletions(-)
> 

Reviewed-by: Rob Herring <robh@...nel.org>