linux-kernel - Re: [PATCH v2 1/9] dt-bindings: Add compatible for Mali Valhall (JM)

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Date:   Thu, 26 May 2022 09:49:12 +0100
From:   Steven Price <steven.price@....com>
To:     Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        dri-devel@...ts.freedesktop.org
Cc:     Rob Herring <robh@...nel.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 1/9] dt-bindings: Add compatible for Mali Valhall (JM)

On 25/05/2022 15:57, Alyssa Rosenzweig wrote:
> From the kernel's perspective, (pre-CSF, "Job Manager") Valhall is more
> or less compatible with Bifrost, although they differ to userspace. Add
> a compatible for Valhall to the existing Bifrost bindings documentation.
> 
> As the first SoC with a Valhall GPU receiving mainline support, add a
> specific compatible for the MediaTek MT8192, which instantiates a
> Mali-G57.
> 
> v2: Change compatible to arm,mali-valhall-jm (Daniel Stone).
> 
> Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>
> CC: devicetree@...r.kernel.org

Reviewed-by: Steven Price <steven.price@....com>

> ---
>  .../bindings/gpu/arm,mali-bifrost.yaml        | 25 +++++++++++--------
>  1 file changed, 15 insertions(+), 10 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> index 85f8d4764740..78964c140b46 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> @@ -14,16 +14,21 @@ properties:
>      pattern: '^gpu@[a-f0-9]+$'
>  
>    compatible:
> -    items:
> -      - enum:
> -          - amlogic,meson-g12a-mali
> -          - mediatek,mt8183-mali
> -          - realtek,rtd1619-mali
> -          - renesas,r9a07g044-mali
> -          - renesas,r9a07g054-mali
> -          - rockchip,px30-mali
> -          - rockchip,rk3568-mali
> -      - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable
> +    oneOf:
> +      - items:
> +          - enum:
> +              - amlogic,meson-g12a-mali
> +              - mediatek,mt8183-mali
> +              - realtek,rtd1619-mali
> +              - renesas,r9a07g044-mali
> +              - renesas,r9a07g054-mali
> +              - rockchip,px30-mali
> +              - rockchip,rk3568-mali
> +          - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable
> +      - items:
> +          - enum:
> +              - mediatek,mt8192-mali
> +          - const: arm,mali-valhall-jm # Mali Valhall GPU model/revision is fully discoverable
>  
>    reg:
>      maxItems: 1