linux-kernel - Re: [PATCH v2 06/10] dt-bindings: gpu: mali-bifrost: Add a compatible for MediaTek MT8186

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Date:   Wed, 22 Feb 2023 16:37:45 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     airlied@...il.com, daniel@...ll.ch, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, steven.price@....com,
        alyssa.rosenzweig@...labora.com, matthias.bgg@...il.com,
        robh@...nel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 06/10] dt-bindings: gpu: mali-bifrost: Add a compatible
 for MediaTek MT8186

On Tue, Feb 21, 2023 at 11:37 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> Get GPU support on MT8186 by adding its compatible.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> index be18b161959b..43a841d4e94d 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> @@ -15,6 +15,11 @@ properties:
>
>    compatible:
>      oneOf:
> +      - items:
> +          - enum:
> +              - mediatek,mt8186-mali
> +          - const: mediatek,mt8183b-mali
> +          - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable

The MT8186 has Mali-G52 MC2 2EE, while the MT8183 has Mali-G72 MP3.
So we actually need a new entry with two power domains.

Our downstream Mali driver & DT use just that.

ChenYu