linux-kernel - Re: [PATCH 2/9] dt-bindings: gpu: mali-bifrost: Allow up to 5 power domains for MT8192

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Date:   Thu, 9 Feb 2023 16:33:57 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     airlied@...il.com, tomeu.vizoso@...labora.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, steven.price@....com,
        robh+dt@...nel.org, linux-mediatek@...ts.infradead.org,
        alyssa.rosenzweig@...labora.com, krzysztof.kozlowski+dt@...aro.org,
        matthias.bgg@...il.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/9] dt-bindings: gpu: mali-bifrost: Allow up to 5 power
 domains for MT8192

On Wed, Feb 8, 2023 at 6:37 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> MediaTek MT8192 (and similar) needs five power domains for the
> Mali GPU and no sram-supply: change the binding to allow so.
>

mt8192 compatible was already added, so this should have:

Fixes: 5d82e74a97c2 ("dt-bindings: Add compatible for Mali Valhall (JM)")

> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  .../bindings/gpu/arm,mali-bifrost.yaml        | 34 +++++++++++++++++--
>  1 file changed, 31 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> index 69212f3b1328..e7aba66ddb8f 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> @@ -61,7 +61,7 @@ properties:
>
>    power-domains:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 5
>
>    resets:
>      minItems: 1
> @@ -141,6 +141,18 @@ allOf:
>          - power-domains
>          - resets
>          - reset-names
> +  - if:
> +      not:
> +        properties:
> +          compatible:
> +            contains:
> +              enum:
> +                - mediatek,mt8183-mali
> +                - mediatek,mt8192-mali
> +    then:
> +      properties:
> +        power-domains:
> +          maxItems: 1
>    - if:
>        properties:
>          compatible:
> @@ -161,10 +173,26 @@ allOf:
>          - sram-supply
>          - power-domains
>          - power-domain-names
> -    else:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: mediatek,mt8192-mali
> +    then:
>        properties:
>          power-domains:
> -          maxItems: 1
> +          minItems: 5
> +        power-domain-names:
> +          items:
> +            - const: core0
> +            - const: core1
> +            - const: core2
> +            - const: core3
> +            - const: core4
> +
> +      required:
> +        - power-domains
> +        - power-domain-names
>    - if:
>        properties:
>          compatible:
> --
> 2.39.1
>