Re: [PATCH 1/2] dt-bindings: phy: qcom,ipq8074-qmp-pcie: Document the ipq5210 QMP PCIe PHY

[sashiko-bot@kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Medium] The compatible string `qcom,ipq5210-qmp-gen3x1-pcie-phy` is added to both the standalone enum and the fallback items list, allowing it to bypass the intended fallback requirement.
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commit 55b201f9c0cef59e94dd05d524ed71d29f4e86c9
Author: Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>

dt-bindings: phy: qcom,ipq8074-qmp-pcie: Document the ipq5210 QMP PCIe PHY

This commit documents the ipq5210 QMP PCIe PHY. It aims to use the ipq9574
bindings as a fallback, as the hardware is similar.

> diff --git a/Documentation/devicetree/bindings/phy/qcom,ipq8074-qmp-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,ipq8074-qmp-pcie-phy.yaml
> index f60804687412a..1ac31439c20a0 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,ipq8074-qmp-pcie-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,ipq8074-qmp-pcie-phy.yaml
> @@ -17,6 +17,7 @@ properties:
>    compatible:
>      oneOf:
>        - enum:
> +          - qcom,ipq5210-qmp-gen3x1-pcie-phy

The commit message states the intent to document the IPQ5210 PHY "using the
ipq9574 bindings as a fallback". Does adding the compatible string to this
standalone enum allow device trees to omit the fallback and still pass
validation?

Since this is inside a oneOf block, a device tree could specify just this
string without the ipq9574 fallback, defeating the intended requirement.

>            - qcom,ipq6018-qmp-pcie-phy
>            - qcom,ipq8074-qmp-gen3-pcie-phy

[ ... ]

> @@ -24,10 +25,12 @@ properties:
>            - qcom,ipq9574-qmp-gen3x2-pcie-phy
>        - items:
>            - enum:
> +              - qcom,ipq5210-qmp-gen3x1-pcie-phy
>                - qcom,ipq5424-qmp-gen3x1-pcie-phy
>            - const: qcom,ipq9574-qmp-gen3x1-pcie-phy
>        - items:
>            - enum:
> +              - qcom,ipq5210-qmp-gen3x2-pcie-phy
>                - qcom,ipq5424-qmp-gen3x2-pcie-phy
>            - const: qcom,ipq9574-qmp-gen3x2-pcie-phy

The gen3x2 variant added here correctly enforces the fallback because it
was not added to the standalone enum above.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260514-pci-phy-v1-0-482429192746@oss.qualcomm.com?part=1