Re: [PATCH 2/4] dt-bindings: mfd: atmel,flexcom: Add lan966 compatible string and mux properties

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On 03/05/2022 12:55, Kavyasree Kotagiri wrote:
> Add lan966 flexcom compatible string and flexcom mux
> device tree properties
> 
> Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@xxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/mfd/atmel,flexcom.yaml   | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml b/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml
> index 62dea9b891d8..3e056857c44a 100644
> --- a/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml
> +++ b/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml
> @@ -18,6 +18,7 @@ properties:
>    compatible:
>      enum:
>        - atmel,sama5d2-flexcom
> +      - microchip,lan966-flexcom
>  
>    reg:
>      minItems: 1
> @@ -45,6 +46,19 @@ properties:
>      $ref: /schemas/types.yaml#/definitions/uint32
>      enum: [0, 1, 2]
>  
> +  # The following optional mux properties are only for lan966 flexcoms

You need allOf:if:then restricting these per compatible.

> +  mux-controls:
> +    minItems: 1

maxItems instead

> +    description: Phandle to the mux controller to map flexcom chip-select
> +     to flexcom shared pin.
> +
> +  mux-control-names:


It looks like mux-consumer, right? You should instead include (in allOf)
the mux-consumer.yaml.

> +    description: String to label the mux controller.
> +    minItems: 1
> +    items:
> +      - const: cs0
> +      - const: cs1
> +
>  required:
>    - compatible
>    - reg
> @@ -64,5 +78,7 @@ examples:
>            #size-cells = <1>;
>            ranges = <0x0 0xf8034000 0x800>;
>            atmel,flexcom-mode = <2>;
> +          mux-controls = <&mux 0>;
> +          mux-control-names = "cs0";
>      };
>  ...


Best regards,
Krzysztof



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