linux-kernel - Re: [PATCH v7 1/2] dt-bindings: phy: qcom,qmp-usb: Drop legacy bindings and move to newer one (SM6115 & QCM2290)

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Date:   Mon, 10 Apr 2023 00:52:18 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-phy@...ts.infradead.org, agross@...nel.org,
        linux-kernel@...r.kernel.org, andersson@...nel.org,
        bhupesh.linux@...il.com, krzysztof.kozlowski@...aro.org,
        robh+dt@...nel.org, konrad.dybcio@...aro.org, kishon@...nel.org,
        vkoul@...nel.org, krzysztof.kozlowski+dt@...aro.org
Subject: Re: [PATCH v7 1/2] dt-bindings: phy: qcom,qmp-usb: Drop legacy
 bindings and move to newer one (SM6115 & QCM2290)

On Sun, 9 Apr 2023 at 23:09, Bhupesh Sharma <bhupesh.sharma@...aro.org> wrote:
>
> 'qcom,msm8996-qmp-usb3-phy.yaml' defines bindings for several PHYs
> which predate USB -> USB+DP migration. Since SM6115 and QCM2290
> nodes for USB QMP phy are being added to dtsi files by followup patches,
> move these bindings instead to the newer style
> 'qcom,sc8280xp-qmp-usb3-uni-phy.yaml' file.
>
> Since no device trees use these bindings presently, so we have no ABI breakages
> with this patch.
>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> ---
>  .../phy/qcom,msm8996-qmp-usb3-phy.yaml        | 27 -----------
>  .../phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml   | 45 ++++++++++++++++---
>  2 files changed, 40 insertions(+), 32 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml
> index e81a38281f8c..4c96dab5b9e3 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml
> @@ -23,14 +23,12 @@ properties:
>        - qcom,ipq8074-qmp-usb3-phy
>        - qcom,msm8996-qmp-usb3-phy
>        - qcom,msm8998-qmp-usb3-phy
> -      - qcom,qcm2290-qmp-usb3-phy
>        - qcom,sc7180-qmp-usb3-phy
>        - qcom,sc8180x-qmp-usb3-phy
>        - qcom,sdm845-qmp-usb3-phy
>        - qcom,sdm845-qmp-usb3-uni-phy
>        - qcom,sdx55-qmp-usb3-uni-phy
>        - qcom,sdx65-qmp-usb3-uni-phy
> -      - qcom,sm6115-qmp-usb3-phy
>        - qcom,sm8150-qmp-usb3-phy
>        - qcom,sm8150-qmp-usb3-uni-phy
>        - qcom,sm8250-qmp-usb3-phy
> @@ -248,29 +246,6 @@ allOf:
>              - const: phy
>              - const: common
>
> -  - if:
> -      properties:
> -        compatible:
> -          contains:
> -            enum:
> -              - qcom,qcm2290-qmp-usb3-phy
> -              - qcom,sm6115-qmp-usb3-phy
> -    then:
> -      properties:
> -        clocks:
> -          maxItems: 3
> -        clock-names:
> -          items:
> -            - const: cfg_ahb
> -            - const: ref
> -            - const: com_aux
> -        resets:
> -          maxItems: 2
> -        reset-names:
> -          items:
> -            - const: phy_phy
> -            - const: phy
> -
>    - if:
>        properties:
>          compatible:
> @@ -318,12 +293,10 @@ allOf:
>              enum:
>                - qcom,ipq6018-qmp-usb3-phy
>                - qcom,ipq8074-qmp-usb3-phy
> -              - qcom,qcm2290-qmp-usb3-phy
>                - qcom,sc7180-qmp-usb3-phy
>                - qcom,sc8180x-qmp-usb3-phy
>                - qcom,sdx55-qmp-usb3-uni-phy
>                - qcom,sdx65-qmp-usb3-uni-phy
> -              - qcom,sm6115-qmp-usb3-phy
>                - qcom,sm8150-qmp-usb3-uni-phy
>                - qcom,sm8250-qmp-usb3-phy
>      then:
> 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 16fce1038285..aa16d50c7c4e 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
> @@ -16,20 +16,20 @@ description:
>  properties:
>    compatible:
>      enum:
> +      - qcom,qcm2290-qmp-usb3-phy
>        - qcom,sc8280xp-qmp-usb3-uni-phy
> +      - qcom,sm6115-qmp-usb3-phy
>
>    reg:
>      maxItems: 1
>
>    clocks:
> +    minItems: 3
>      maxItems: 4
>
>    clock-names:
> -    items:
> -      - const: aux
> -      - const: ref
> -      - const: com_aux
> -      - const: pipe
> +    minItems: 3
> +    maxItems: 4
>
>    power-domains:
>      maxItems: 1
> @@ -71,6 +71,41 @@ required:
>
>  additionalProperties: false
>
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,qcm2290-qmp-usb3-phy
> +              - qcom,sm6115-qmp-usb3-phy
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 3
> +        clock-names:
> +          items:
> +            - const: cfg_ahb
> +            - const: ref
> +            - const: com_aux

Doesn't it also need a pipe clock? It surely does: gcc_usb3_prim_phy_pipe_clk

> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sc8280xp-qmp-usb3-uni-phy
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 4
> +        clock-names:
> +          items:
> +            - const: aux
> +            - const: ref
> +            - const: com_aux
> +            - const: pipe
> +
>  examples:
>    - |
>      #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
> --
> 2.38.1
>


-- 
With best wishes
Dmitry