Re: [PATCH 07/21] dt-bindings: display: mediatek: dpi: add binding for MT8365

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On 09/03/2023 15:22, Alexandre Mergnat wrote:
> From: Fabien Parent <fparent@xxxxxxxxxxxx>
> 
> DPI for MT8365 is compatible with MT8192 but requires an additional
> clock. Modify the documentation to requires this clock only on MT8365 SoCs.
> 
> Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx>
> Signed-off-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
> ---
>  .../bindings/display/mediatek/mediatek,dpi.yaml    | 48 ++++++++++++++++++----
>  1 file changed, 39 insertions(+), 9 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> index 56511c4d4b9b..3f6cca81340c 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> @@ -17,15 +17,20 @@ description: |
>  
>  properties:
>    compatible:
> -    enum:
> -      - mediatek,mt2701-dpi
> -      - mediatek,mt7623-dpi
> -      - mediatek,mt8173-dpi
> -      - mediatek,mt8183-dpi
> -      - mediatek,mt8186-dpi
> -      - mediatek,mt8188-dp-intf
> -      - mediatek,mt8192-dpi
> -      - mediatek,mt8195-dp-intf
> +    oneOf:
> +      - enum:
> +          - mediatek,mt2701-dpi
> +          - mediatek,mt7623-dpi
> +          - mediatek,mt8173-dpi
> +          - mediatek,mt8183-dpi
> +          - mediatek,mt8186-dpi
> +          - mediatek,mt8188-dp-intf
> +          - mediatek,mt8192-dpi
> +          - mediatek,mt8195-dp-intf
> +      - items:
> +          - enum:
> +              - mediatek,mt8365-dpi
> +          - const: mediatek,mt8192-dpi
>  
>    reg:
>      maxItems: 1
> @@ -34,16 +39,20 @@ properties:
>      maxItems: 1
>  
>    clocks:
> +    minItems: 3
>      items:
>        - description: Pixel Clock
>        - description: Engine Clock
>        - description: DPI PLL
> +      - description: DPI Clock
>  
>    clock-names:
> +    minItems: 3
>      items:
>        - const: pixel
>        - const: engine
>        - const: pll
> +      - const: dpi
>  
>    pinctrl-0: true
>    pinctrl-1: true
> @@ -72,6 +81,27 @@ required:
>  
>  additionalProperties: false
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: mediatek,mt8365-dpi
> +
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 4

We usually set minItems, so it is clear readable that you raise the
lower bracket. Code should be equivalent, but I would say this is less
readable (maxItems: 4 was actually implied by top-level list).



Best regards,
Krzysztof




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