Re: [RFC PATCH v2 1/3] dt-bindings: phy: qcom,qmp-usb3-dp: Add sm6350 compatible

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On Fri, Nov 25, 2022 at 10:27:47AM +0100, Luca Weiss wrote:
> Add the compatible describing the combo phy found on SM6350.
> 
> Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
> ---
> @Johan Hovold, I've sent this v2 as RFC because there are several things
> where I have questions on how it should be done.
> 
> In this patch, you can see there's cfg_ahb (&xo_board) and power-domains
> is not set. In msm-4.19 &gcc_usb30_prim_gdsc is only used in the
> ssusb@a600000 node, or should I also add it to qmpphy?

Yeah, you may need to add a platform specific section of the clocks,
which appear to be different, even if I'm not sure they are currently
described correctly (xo_board as cfg_ahb and "QLINK" as ref). How are
they named in the vendor's dts?

It should be OK to include the power-domain also for the PHY node.

>  .../bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml          | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
> index 6f31693d9868..3e39e3e0504d 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
> @@ -17,16 +17,18 @@ properties:
>    compatible:
>      enum:
>        - qcom,sc8280xp-qmp-usb43dp-phy
> +      - qcom,sm6350-qmp-usb3-dp-phy
>  
>    reg:
>      maxItems: 1
>  
>    clocks:
> -    maxItems: 4
> +    maxItems: 5
>  
>    clock-names:
>      items:
>        - const: aux
> +      - const: cfg_ahb
>        - const: ref
>        - const: com_aux
>        - const: usb3_pipe

So this would need to be moved to an allOf: construct at the end with
one section each for sc8280xp and sm6350.

> @@ -61,7 +63,6 @@ required:
>    - reg
>    - clocks
>    - clock-names
> -  - power-domains
>    - resets
>    - reset-names
>    - vdda-phy-supply

Johan



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