Re: [PATCH net-next v6 1/6] dt-bindings: mfd: Add switch to RTL9300

[Rob Herring <robh@kernel.org>]

On Tue, Feb 04, 2025 at 04:02:44PM +1300, Chris Packham wrote:
> Add bindings for the ethernet-switch portion of the RTL9300.
> 
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
> 
> Notes:
>     Changes in v6:
>     - New
>     - I'd like to enforce the property being "ethernet-ports" but I see the
>       generic binding allows "ports" as well. Can I just add ethernet-ports:
>       type: object here

Yes. And keep 'additionalProperties'.

>  or does by driver need to handle both "ports" and
>       "ethernet-ports" (I see some do and some don't).

No, it doesn't.

> 
>  .../bindings/mfd/realtek,rtl9301-switch.yaml     | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/realtek,rtl9301-switch.yaml b/Documentation/devicetree/bindings/mfd/realtek,rtl9301-switch.yaml
> index f053303ab1e6..cb54abda5e6a 100644
> --- a/Documentation/devicetree/bindings/mfd/realtek,rtl9301-switch.yaml
> +++ b/Documentation/devicetree/bindings/mfd/realtek,rtl9301-switch.yaml
> @@ -14,6 +14,8 @@ description:
>    number of different peripherals are accessed through a common register block,
>    represented here as a syscon node.
>  
> +$ref: /schemas/net/ethernet-switch.yaml#

If you don't have any device specific per port properties, then this 
needs to be: ethernet-switch.yaml#/$defs/ethernet-ports

> +
>  properties:
>    compatible:
>      items:
> @@ -45,7 +47,7 @@ required:
>    - compatible
>    - reg
>  
> -additionalProperties: false
> +unevaluatedProperties: false
>  
>  examples:
>    - |
> @@ -110,5 +112,17 @@ examples:
>            };
>          };
>        };
> +
> +      ethernet-ports {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        port@0 {
> +          reg = <0>;
> +        };
> +        port@1 {
> +          reg = <1>;
> +        };
> +      };
>      };
>  
> -- 
> 2.48.1
>