[PATCH v4 1/3] dt-bindings: net: sophgo,sg2044-dwmac: add phy mode restriction

[Conor Dooley]

On Tue, Oct 28, 2025 at 08:38:56AM +0800, Inochi Amaoto wrote:
> As the ethernet controller of SG2044 and SG2042 only supports
> RGMII phy. Add phy-mode property to restrict the value.
> 
> Also, since SG2042 has internal rx delay in its mac, make
> only "rgmii-txid" and "rgmii-id" valid for phy-mode.

Should this have a fixes tag?
Acked-by: Conor Dooley <conor.dooley at microchip.com>

> 
> Signed-off-by: Inochi Amaoto <inochiama at gmail.com>
> ---
>  .../bindings/net/sophgo,sg2044-dwmac.yaml     | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> index ce21979a2d9a..916ef8f4838a 100644
> --- a/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> @@ -70,6 +70,26 @@ required:
>  
>  allOf:
>    - $ref: snps,dwmac.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: sophgo,sg2042-dwmac
> +    then:
> +      properties:
> +        phy-mode:
> +          enum:
> +            - rgmii-txid
> +            - rgmii-id
> +    else:
> +      properties:
> +        phy-mode:
> +          enum:
> +            - rgmii
> +            - rgmii-rxid
> +            - rgmii-txid
> +            - rgmii-id
> +
>  
>  unevaluatedProperties: false
>  
> -- 
> 2.51.1
> 
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