linux-kernel - Re: [PATCH v8 2/8] dt-bindings: phy: qcom,qmp-usb: Add IPQ9574 USB3 PHY

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Date:   Thu, 6 Apr 2023 09:42:31 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, vkoul@...nel.org,
        kishon@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, gregkh@...uxfoundation.org,
        mturquette@...libre.com, sboyd@...nel.org, quic_wcheng@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v8 2/8] dt-bindings: phy: qcom,qmp-usb: Add IPQ9574 USB3
 PHY

On 05/04/2023 13:41, Varadarajan Narayanan wrote:
> Add dt-bindings for USB3 PHY found on Qualcomm IPQ9574
> 
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
>  Changes in v8:
> 	- Update clock names for ipq9574
> 
>  Changes in v6:
> 	- Made power-domains optional
> 
> Note: In the earlier patch sets, had used the (legacy)
> specification available in qcom,msm8996-qmp-usb3-phy.yaml. Moved
> to newer specification in qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> ---
>  .../phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml        | 43 +++++++++++++++++++---
>  1 file changed, 37 insertions(+), 6 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> index 16fce10..e902a0d 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> @@ -16,6 +16,7 @@ description:
>  properties:
>    compatible:
>      enum:
> +      - qcom,ipq9574-qmp-usb3-phy
>        - qcom,sc8280xp-qmp-usb3-uni-phy
>  
>    reg:
> @@ -25,11 +26,7 @@ properties:
>      maxItems: 4
>  
>    clock-names:
> -    items:
> -      - const: aux
> -      - const: ref
> -      - const: com_aux
> -      - const: pipe
> +    maxItems: 4
>  
>    power-domains:
>      maxItems: 1
> @@ -60,7 +57,6 @@ required:
>    - reg
>    - clocks
>    - clock-names
> -  - power-domains

Power domains are required. Commit msg does not explain why this should
be now optional.

Best regards,
Krzysztof