linux-kernel - Re: [PATCH v2 2/5] dt-bindings: phy: qcom,qmp-usb: Add SDX75 USB3 PHY

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Message-ID: <CAA8EJpqK1FzD2+c6TsicP-fjP+vKJGNWKZ2UodphkROb0WkX1A@mail.gmail.com>
Date:   Wed, 6 Sep 2023 08:39:45 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Rohit Agarwal <quic_rohiagar@...cinc.com>
Cc:     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, conor+dt@...nel.org,
        gregkh@...uxfoundation.org, abel.vesa@...aro.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,
        kernel@...cinc.com
Subject: Re: [PATCH v2 2/5] dt-bindings: phy: qcom,qmp-usb: Add SDX75 USB3 PHY

On Wed, 6 Sept 2023 at 08:26, Rohit Agarwal <quic_rohiagar@...cinc.com> wrote:
>
>
> On 9/6/2023 10:52 AM, Rohit Agarwal wrote:
> >
> > On 9/6/2023 2:04 AM, Dmitry Baryshkov wrote:
> >> On 05/09/2023 13:30, Rohit Agarwal wrote:
> >>> Add dt-bindings for USB3 PHY found on Qualcomm SDX75.
> >>>
> >>> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
> >>> ---
> >>>   .../phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml        | 40
> >>> ++++++++++++++++++++--
> >>>   1 file changed, 37 insertions(+), 3 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 f99fbbc..5725620 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
> >>> @@ -20,6 +20,7 @@ properties:
> >>>         - qcom,qcm2290-qmp-usb3-phy
> >>>         - qcom,sa8775p-qmp-usb3-uni-phy
> >>>         - qcom,sc8280xp-qmp-usb3-uni-phy
> >>> +      - qcom,sdx75-qmp-usb3-uni-phy
> >>
> >> I think the ident is wrong here.
> >
> > Same. Somehow, your reply has the issue but original not able to see.
> >
> >>
> >>>         - qcom,sm6115-qmp-usb3-phy
> >>>       reg:
> >>> @@ -38,9 +39,7 @@ properties:
> >>>       maxItems: 2
> >>>       reset-names:
> >>> -    items:
> >>> -      - const: phy
> >>> -      - const: phy_phy
> >>> +    maxItems: 2
> >>>       vdda-phy-supply: true
> >>>   @@ -75,6 +74,7 @@ allOf:
> >>>             contains:
> >>>               enum:
> >>>                 - qcom,ipq9574-qmp-usb3-phy
> >>> +              - qcom,sdx75-qmp-usb3-uni-phy
> >>>       then:
> >>>         properties:
> >>>           clock-names:
> >>> @@ -122,6 +122,40 @@ allOf:
> >>>         required:
> >>>           - power-domains
> >>>   +  - if:
> >>> +      properties:
> >>> +        compatible:
> >>> +          contains:
> >>> +            enum:
> >>> +              - qcom,ipq9574-qmp-usb3-phy
> >>> +              - qcom,qcm2290-qmp-usb3-phy
> >>> +              - qcom,sa8775p-qmp-usb3-uni-phy
> >>> +              - qcom,sc8280xp-qmp-usb3-uni-phy
> >>> +              - qcom,sm6115-qmp-usb3-phy
> >>> +    then:
> >>> +      properties:
> >>> +        resets:
> >>> +          maxItems: 2
> >>> +        reset-names:
> >>> +          items:
> >>> +            - const: phy
> >>> +            - const: phy_phy
> >>> +
> >>> +  - if:
> >>> +      properties:
> >>> +        compatible:
> >>> +          contains:
> >>> +            enum:
> >>> +              - qcom,sdx75-qmp-usb3-uni-phy
> >>> +    then:
> >>> +      properties:
> >>> +        resets:
> >>> +          maxItems: 2
> >>> +        reset-names:
> >>> +          items:
> >>> +            - const: phy
> >>> +            - const: common
> >>
> >> Could you please point us to the actual DTS patch adding this PHY?
> >> I'd say, it is highly likely that you are trying to bring in the
> >> unnecessary change.
> > I have not posted the dt patches yet. But sdx75 uses these resets.
> > GCC_USB3PHY_PHY_BCR, GCC_USB3_PHY_BCR
> >
> > These are same as sdx65 and sdx55.
> Ok I see in your patch
> https://lore.kernel.org/linux-phy/20230824211952.1397699-17-dmitry.baryshkov@linaro.org/
> you are updating the resets name. Fine, this change becomes unnecessary.
> Will rebase my change on your patches.

Well, even without my changes, GCC_USB3PHY_PHY_BCR is "phy_phy", just
judging by the name.

>
> Thanks,
> Rohit.
> >
> > Thanks,
> > Rohit.
> >
> >>
> >>> +
> >>>   additionalProperties: false
> >>>     examples:
> >>



-- 
With best wishes
Dmitry