# Re: \[PATCH net-next 02/13\] dt-bindings: net: cdns,macb: allow tsu\_clk without tx\_clk

- From: Rob Herring \<robh@kernel.org\>
- Date: 2025-03-24 16:30:02 
- List: netdev
- Page: https://ratatoskr.run/netdev/2025/03/2983845
- Thread: https://ratatoskr.run/netdev/2025/03/2981789/t.md

```text
On Fri, Mar 21, 2025 at 08:09:33PM +0100, Théo Lebrun wrote:
> Allow providing tsu_clk without a tx_clk as both are optional.

Why? Is there some new h/w? Where's the compatible for it. Or this fixes 
some existing user? Which one?

> 
> Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
> ---
>  Documentation/devicetree/bindings/net/cdns,macb.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/cdns,macb.yaml b/Documentation/devicetree/bindings/net/cdns,macb.yaml
> index 306d14958778df1a80a15e24d8ed5409704613be..36fcae1b20d757b3ebe615a9fc66068000ded56d 100644
> --- a/Documentation/devicetree/bindings/net/cdns,macb.yaml
> +++ b/Documentation/devicetree/bindings/net/cdns,macb.yaml
> @@ -85,7 +85,7 @@ properties:
>      items:
>        - enum: [ ether_clk, hclk, pclk ]
>        - enum: [ hclk, pclk ]
> -      - const: tx_clk
> +      - enum: [ tx_clk, tsu_clk ]
>        - enum: [ rx_clk, tsu_clk ]
>        - const: tsu_clk
>  
> 
> -- 
> 2.48.1
> 
```