Re: [PATCH net-next 1/3] dt-bindings: net: realtek,rtl9301-mdio: Add clock-frequency

[Andrew Lunn <andrew@lunn.ch>]

On Thu, Sep 03, 2026 at 02:21:17PM +0200, Markus Stockhausen wrote:
> The Realtek Otto Switch ethernet MDIO controller supports different MDC
> speeds ranging from 1.25MHz to 10MHz. Document the clock-frequency
> attribute for the device tree.
> 
> There is neither an offical documentation nor any obvious registers that
> indicate a dependency to one of the hardware clocks. The usable setup bits
> are more like hardcoded values than dividers. Without further details do
> not add a clock reference.
> 
> Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
> ---
>  .../devicetree/bindings/net/realtek,rtl9301-mdio.yaml          | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml b/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml
> index 67e0b23a8470..6db3315ce96b 100644
> --- a/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml
> +++ b/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml
> @@ -56,6 +56,9 @@ patternProperties:
>        reg:
>          maxItems: 1
>  
> +      clock-frequency:
> +        default: 2500000

Please list the supported values.

The fact this is messy, different devices supporting different
frequencies, makes the validation more important.

	Andrew