Re: [PATCH v2 5/5] dt-bindings: mmc: mtk-sd: add mt7986

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On 22/10/2022 05:05, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
> 
> Add SoC specific section for defining clock configuration.
> 
> Add compatible in "not" section to avoid override the settings again.
> 
> Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/mmc/mtk-sd.yaml       | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
> index c7bcf0c3dd5d..9df63c461f1f 100644
> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
> @@ -229,6 +229,33 @@ allOf:
>              - const: hclk
>              - const: source_cg
>              - const: bus_clk

Blank line

> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mt7986-mmc
> +    then:
> +      properties:
> +        assigned-clock-parents:
> +          maxItems: 2
> +        assigned-clocks:
> +          maxItems: 2

Define these two only if they are required for the hardware to operate
and only such setup (two assigned parents) is allowed. Otherwise you put
some constraints on board design.

> +        clocks:
> +          minItems: 3

Best regards,
Krzysztof




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