Re: [PATCH 1/3] dt-bindings: phy: qcom-edp: Add missing clock for X Elite

[Krzysztof Kozlowski <krzk@kernel.org>]

On 30/07/2025 13:46, Abel Vesa wrote:
> On X Elite platform, the eDP PHY uses one more clock called
> refclk. Add it to the schema.

And what happens if you do not provide that clock? You need to provide
rationale for ABI break.

> 
> Cc: stable@vger.kernel.org # v6.10
> Fixes: 5d5607861350 ("dt-bindings: phy: qcom-edp: Add X1E80100 PHY compatibles")
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
>  .../devicetree/bindings/phy/qcom,edp-phy.yaml      | 23 +++++++++++++++++++++-
>  1 file changed, 22 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
> index 293fb6a9b1c330438bceba15226c91e392c840fb..2e594b2ea81d385118684bf58da3440c88ca32b9 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
> @@ -32,12 +32,14 @@ properties:
>        - description: PLL register block
>  
>    clocks:
> -    maxItems: 2
> +    minItems: 2
> +    maxItems: 3
>  
>    clock-names:
>      items:
>        - const: aux
>        - const: cfg_ahb
> +      - const: refclk

This does not match clocks. You miss minItems before the items.

>  
>    "#clock-cells":
>      const: 1
> @@ -59,6 +61,25 @@ required:
>    - "#clock-cells"
>    - "#phy-cells"
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          enum:
> +            - qcom,x1e80100-dp-phy
> +    then:
> +      properties:
> +        clocks:

Missing minItems... or you wanted to make it flexible, but then drop
entire if branch leading only second one for other variants (maxItems: 2).

> +          maxItems: 3
> +        clock-names:

Same here.

> +          maxItems: 3
> +    else:
> +      properties:
> +        clocks:
> +          maxItems: 2
> +        clock-names:
> +          maxItems: 2
> +
>  additionalProperties: false
>  
>  examples:
> 


Best regards,
Krzysztof