Re: [PATCH net-next v3 2/7] dt-bindings: net: add backplane dt bindings

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On 6/22/20 6:35 AM, Florinel Iordache wrote:
> Add ethernet backplane device tree bindings
> 
> Signed-off-by: Florinel Iordache <florinel.iordache@xxxxxxx>
> ---

[snip]

> +properties:
> +  $nodename:
> +    pattern: "^serdes(@[a-f0-9]+)?$"
> +
> +  compatible:
> +    oneOf:
> +      - const: serdes-10g
> +        description: SerDes module type of 10G

Since this appears to be memory mapped in your case, it does not sound
like "serdes-10g" alone is going to be sufficient, should not we have a
SoC specific compatible string if nothing else?

> +
> +  reg:
> +    description:
> +      Registers memory map offset and size for this serdes module
> +
> +  reg-names:
> +    description:
> +      Names of the register map given in "reg" node.

You would also need to describe how many of these two properties are
expected.

> +
> +  little-endian:
> +    description:
> +      Specifies the endianness of serdes module
> +      For complete definition see
> +      Documentation/devicetree/bindings/common-properties.txt

This is redundant with the default binding then, and if it is not
already in the common YAML binding, can you please add little-endian and
native-endian added there?

> +
> +examples:
> +  - |
> +    serdes1: serdes@1ea0000 {
> +        compatible = "serdes-10g";
> +        reg = <0x0 0x1ea0000 0 0x00002000>;
> +        reg-names = "serdes", "serdes-10g";
> +        little-endian;
> +    };
> 


-- 
Florian



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