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Message-ID: <20230331092710.GB19162@varda-linux.qualcomm.com>
Date:   Fri, 31 Mar 2023 14:57:11 +0530
From:   Varadarajan Narayanan <quic_varada@...cinc.com>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
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>, <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 v5 7/8] arm64: dts: qcom: ipq9574: Add USB related nodes

On Thu, Mar 30, 2023 at 12:44:40PM +0300, Dmitry Baryshkov wrote:
> On Thu, 30 Mar 2023 at 11:42, Varadarajan Narayanan
> <quic_varada@...cinc.com> wrote:
> >
> > Add USB phy and controller related nodes
> >
> > Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> > ---
> >  Changes in v5:
> >         - Fix additional comments
> >         - Edit nodes to match with qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> >         - 'make dtbs_check' giving the following messages since
> >           ipq9574 doesn't have power domains. Hope this is ok
> >
> >                 /local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: phy@...00: 'power-domains' is a required property
> >                 From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> >                 /local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: usb@...0000: 'power-domains' is a required property
> >                 From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
>
> No, I think it is not.

There are no GDSCs in IPQ9574. Can you suggest how to proceed.

Thanks
Varada

> >  Changes in v4:
> >         - Use newer bindings without subnodes
> >         - Fix coding style issues
> >
> >  Changes in v3:
> >         - Insert the nodes at proper location
> >
> >  Changes in v2:
> >         - Fixed issues flagged by Krzysztof
> >         - Fix issues reported by make dtbs_check
> >         - Remove NOC related clocks (to be added with proper
> >           interconnect support)
> >
> > Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> > ---
> >  arch/arm64/boot/dts/qcom/ipq9574.dtsi | 120 ++++++++++++++++++++++++++++++++++
> >  1 file changed, 120 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> > index 2bb4053..8fa9e1a 100644
> > --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> > @@ -186,6 +186,33 @@
> >                 method = "smc";
> >         };
> >
> > +       reg_usb_3p3: s3300 {
> > +               compatible = "regulator-fixed";
> > +               regulator-min-microvolt = <3300000>;
> > +               regulator-max-microvolt = <3300000>;
> > +               regulator-boot-on;
> > +               regulator-always-on;
> > +               regulator-name = "usb-phy-vdd-dummy";
> > +       };
> > +
> > +       reg_usb_1p8: s1800 {
> > +               compatible = "regulator-fixed";
> > +               regulator-min-microvolt = <1800000>;
> > +               regulator-max-microvolt = <1800000>;
> > +               regulator-boot-on;
> > +               regulator-always-on;
> > +               regulator-name = "usb-phy-pll-dummy";
> > +       };
> > +
> > +       reg_usb_0p925: s0925 {
> > +               compatible = "regulator-fixed";
> > +               regulator-min-microvolt = <925000>;
> > +               regulator-max-microvolt = <925000>;
> > +               regulator-boot-on;
> > +               regulator-always-on;
> > +               regulator-name = "usb-phy-dummy";
> > +       };
> > +
> >         reserved-memory {
> >                 #address-cells = <2>;
> >                 #size-cells = <2>;
> > @@ -215,6 +242,52 @@
> >                 #size-cells = <1>;
> >                 ranges = <0 0 0 0xffffffff>;
> >
> > +               qusb_phy_0: phy@...00 {
> > +                       compatible = "qcom,ipq9574-qusb2-phy";
> > +                       reg = <0x0007b000 0x180>;
> > +                       #phy-cells = <0>;
> > +
> > +                       clocks = <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> > +                                <&xo_board_clk>;
> > +                       clock-names = "cfg_ahb",
> > +                                     "ref";
> > +
> > +                       vdd-supply = <&reg_usb_0p925>;
> > +                       vdda-pll-supply = <&reg_usb_1p8>;
> > +                       vdda-phy-dpdm-supply = <&reg_usb_3p3>;
> > +
> > +                       resets = <&gcc GCC_QUSB2_0_PHY_BCR>;
> > +                       status = "disabled";
> > +               };
> > +
> > +               ssphy_0: phy@...00 {
>
> Nit: usually the label usb_0_qmpphy
>
> > +                       compatible = "qcom,ipq9574-qmp-usb3-phy";
> > +                       reg = <0x0007d000 0xa00>;
> > +                       #phy-cells = <0>;
> > +
> > +                       clocks = <&gcc GCC_USB0_AUX_CLK>,
> > +                                <&xo_board_clk>,
> > +                                <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> > +                                <&gcc GCC_USB0_PIPE_CLK>;
> > +                       clock-names = "aux",
> > +                                     "ref",
> > +                                     "com_aux",
> > +                                     "pipe";
> > +
> > +                       resets = <&gcc GCC_USB0_PHY_BCR>,
> > +                                <&gcc GCC_USB3PHY_0_PHY_BCR>;
> > +                       reset-names = "phy",
> > +                                     "phy_phy";
> > +
> > +                       vdda-pll-supply = <&reg_usb_1p8>;
> > +                       vdda-phy-supply = <&reg_usb_0p925>;
> > +
> > +                       status = "disabled";
> > +
> > +                       #clock-cells = <0>;
> > +                       clock-output-names = "usb0_pipe_clk";
> > +               };
> > +
> >                 pcie0_phy: phy@...00 {
> >                         compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
> >                         reg = <0x00084000 0x1bc>; /* Serdes PLL */
> > @@ -436,6 +509,53 @@
> >                         status = "disabled";
> >                 };
> >
> > +               usb3: usb@...0000 {
> > +                       compatible = "qcom,ipq9574-dwc3", "qcom,dwc3";
> > +                       reg = <0x08af8800 0x400>;
> > +                       #address-cells = <1>;
> > +                       #size-cells = <1>;
> > +                       ranges;
> > +
> > +                       clocks = <&gcc GCC_SNOC_USB_CLK>,
> > +                                <&gcc GCC_ANOC_USB_AXI_CLK>,
> > +                                <&gcc GCC_USB0_MASTER_CLK>,
> > +                                <&gcc GCC_USB0_SLEEP_CLK>,
> > +                                <&gcc GCC_USB0_MOCK_UTMI_CLK>;
> > +
> > +                       clock-names = "sys_noc_axi",
> > +                                     "anoc_axi",
> > +                                     "master",
> > +                                     "sleep",
> > +                                     "mock_utmi";
> > +
> > +                       assigned-clocks = <&gcc GCC_USB0_MASTER_CLK>,
> > +                                         <&gcc GCC_USB0_MOCK_UTMI_CLK>;
> > +                       assigned-clock-rates = <200000000>,
> > +                                              <24000000>;
> > +
> > +                       interrupts-extended = <&intc GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
> > +                       interrupt-names = "pwr_event";
> > +
> > +                       resets = <&gcc GCC_USB_BCR>;
> > +                       status = "disabled";
> > +
> > +                       dwc_0: usb@...0000 {
> > +                               compatible = "snps,dwc3";
> > +                               reg = <0x8a00000 0xcd00>;
> > +                               clocks = <&gcc GCC_USB0_MOCK_UTMI_CLK>;
> > +                               clock-names = "ref";
> > +                               interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
> > +                               phys = <&qusb_phy_0>, <&ssphy_0>;
> > +                               phy-names = "usb2-phy", "usb3-phy";
> > +                               tx-fifo-resize;
> > +                               snps,is-utmi-l1-suspend;
> > +                               snps,hird-threshold = /bits/ 8 <0x0>;
> > +                               snps,dis_u2_susphy_quirk;
> > +                               snps,dis_u3_susphy_quirk;
> > +                               dr_mode = "host";
> > +                       };
> > +               };
> > +
> >                 intc: interrupt-controller@...0000 {
> >                         compatible = "qcom,msm-qgic2";
> >                         reg = <0x0b000000 0x1000>,  /* GICD */
> > --
> > 2.7.4
> >
>
>
> --
> With best wishes
> Dmitry

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