linux-kernel - Re: [PATCH 4/4] dt-bindings: media: mtk-vcodec: Add encoder power domain property

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Message-ID: <YmbOSHlTLRVzZOtr@robh.at.kernel.org>
Date:   Mon, 25 Apr 2022 11:37:28 -0500
From:   Rob Herring <robh@...nel.org>
To:     Allen-KH Cheng <allen-kh.cheng@...iatek.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Chen-Yu Tsai <wenst@...omium.org>,
        Ryder Lee <ryder.lee@...nel.org>,
        Hui Liu <hui.liu@...iatek.com>,
        Irui Wang <irui.wang@...iatek.com>
Subject: Re: [PATCH 4/4] dt-bindings: media: mtk-vcodec: Add encoder power
 domain property

On Thu, Apr 21, 2022 at 11:51:11AM +0800, Allen-KH Cheng wrote:
> From: Irui Wang <irui.wang@...iatek.com>
> 
> Add encoder power domain property
> 
> Signed-off-by: Irui Wang <irui.wang@...iatek.com>
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
> ---
>  .../devicetree/bindings/media/mediatek,vcodec-encoder.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
> index e7b65a91c92c..de2df6c6352c 100644
> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
> @@ -41,6 +41,9 @@ properties:
>  
>    assigned-clock-parents: true
>  
> +  power-domains:
> +    maxItems: 1
> +
>    iommus:
>      minItems: 1
>      maxItems: 32
> @@ -74,6 +77,7 @@ required:
>    - iommus
>    - assigned-clocks
>    - assigned-clock-parents
> +  - power-domains

New properties can't be required as that's an ABI change unless there is 
some explanation why it is okay/necessary.

Rob