linux-kernel - Re: [PATCH 2/3] media: dt-bindings: media: mediatek: vcodec: Change the max reg value to 2

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Message-ID: <96979d33-829a-4b38-bd8e-83b7f07a7c2c@collabora.com>
Date:   Wed, 9 Nov 2022 10:29:45 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Rob Herring <robh@...nel.org>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH 2/3] media: dt-bindings: media: mediatek: vcodec: Change
 the max reg value to 2

Il 09/11/22 08:35, Yunfei Dong ha scritto:
> Need to add racing control register base in device node for mt8195 support
> inner racing mode. Changing the max reg value from 1 to 2.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
> ---
>   .../bindings/media/mediatek,vcodec-subdev-decoder.yaml          | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
> index 794012853834..1697feb1f854 100644
> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
> @@ -61,7 +61,7 @@ properties:
>         - mediatek,mt8195-vcodec-dec
>   
>     reg:
> -    maxItems: 1
> +    maxItems: 2

What about doing, instead...

- description: VDEC_SYS register space
- description: VDEC_RACING_CTRL register space

then, setting `minItems: 1` will make the racing_ctrl iospace optional :-)

Regards,
Angelo