linux-kernel - Re: [PATCH v8 2/2] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

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Message-ID: <CAH=2NtyP8zkOetnH-i8TLBGBQnjH4f569PxjzW_84HZXeCFGNw@mail.gmail.com>
Date:   Tue, 11 Apr 2023 17:48:04 +0530
From:   Bhupesh Sharma <bhupesh.sharma@...aro.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...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 v8 2/2] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

On Tue, 11 Apr 2023 at 13:17, Dmitry Baryshkov
<dmitry.baryshkov@...aro.org> wrote:
>
> On 10/04/2023 20:10, Bhupesh Sharma wrote:
> > Add USB superspeed qmp phy node to dtsi.
> >
> > Make sure that the various board dts files (which include sm4250.dtsi file)
> > continue to work as intended.
> >
> > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> > ---
> >   .../boot/dts/qcom/sm4250-oneplus-billie2.dts  |  3 ++
> >   arch/arm64/boot/dts/qcom/sm6115.dtsi          | 29 +++++++++++++++++--
> >   .../boot/dts/qcom/sm6115p-lenovo-j606f.dts    |  3 ++
> >   3 files changed, 33 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts b/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> > index a1f0622db5a0..75951fd439df 100644
> > --- a/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> > +++ b/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> > @@ -242,6 +242,9 @@ &usb {
> >   &usb_dwc3 {
> >       maximum-speed = "high-speed";
> >       dr_mode = "peripheral";
> > +
> > +     phys = <&usb_hsphy>;
> > +     phy-names = "usb2-phy";
> >   };
> >
> >   &usb_hsphy {
> > diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> > index 2505c815c65a..b2ea8f13e827 100644
> > --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> > @@ -651,6 +651,31 @@ usb_hsphy: phy@...3000 {
> >                       status = "disabled";
> >               };
> >
> > +             usb_qmpphy: phy@...5000 {
> > +                     compatible = "qcom,sm6115-qmp-usb3-phy";
> > +                     reg = <0x0 0x01615000 0x0 0x200>;
> > +
> > +                     clocks = <&gcc GCC_AHB2PHY_USB_CLK>,
> > +                              <&gcc GCC_USB3_PRIM_CLKREF_CLK>,
> > +                              <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>,
> > +                              <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> > +                     clock-names = "cfg_ahb",
> > +                                   "ref",
> > +                                   "com_aux",
> > +                                   "pipe";
> > +
> > +                     resets = <&gcc GCC_USB3_PHY_PRIM_SP0_BCR>,
> > +                              <&gcc GCC_USB3PHY_PHY_PRIM_SP0_BCR>;
> > +                     reset-names = "phy", "phy_phy";
> > +
> > +                     #clock-cells = <0>;
> > +                     clock-output-names = "usb3_phy_pipe_clk_src";
> > +
> > +                     #phy-cells = <0>;
> > +
> > +                     status = "disabled";
>
>
> Please excuse me if I'm wrong, but this will not work with the current
> PHY driver. It was not updated to handle new bindings. Please provide
> relevant driver patches too.

Oh.. from your previous emails, I got the feeling that you were
already reworking the existing PHY driver as part of enabling it for
newer bindings.

No issues, I will send the PHY patches as well in the next version.

Thanks,
Bhupesh