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Message-ID: <CAA8EJppXuaGx4VhZ9fOBUkD8fECngzJ8pubNC4bm_0M9+64ZqQ@mail.gmail.com>
Date:   Wed, 22 Mar 2023 16:41:01 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...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, 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 v3 7/8] arm64: dts: qcom: ipq9574: Add USB related nodes

On Wed, 22 Mar 2023 at 12:46, 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 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)
> ---
>  arch/arm64/boot/dts/qcom/ipq9574.dtsi | 86 +++++++++++++++++++++++++++++++++++
>  1 file changed, 86 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> index 2bb4053..0943901 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> @@ -215,6 +215,48 @@
>                 #size-cells = <1>;
>                 ranges = <0 0 0 0xffffffff>;
>
> +               qusb_phy_0: phy@...00 {
> +                       compatible = "qcom,ipq9574-qusb2-phy";
> +                       reg = <0x07b000 0x180>;

Please pad addresses to 8 hex digits.


> +                       #phy-cells = <0>;
> +
> +                       clocks = <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> +                               <&xo_board_clk>;
> +                       clock-names = "cfg_ahb", "ref";
> +
> +                       resets = <&gcc GCC_QUSB2_0_PHY_BCR>;
> +                       status = "disabled";
> +               };
> +
> +               ssphy_0: phy@...00 {
> +                       compatible = "qcom,ipq9574-qmp-usb3-phy";
> +                       reg = <0x7d000 0x1c4>;
> +                       #clock-cells = <1>;
> +                       #address-cells = <1>;
> +                       #size-cells = <1>;
> +                       ranges;
> +
> +                       clocks = <&gcc GCC_USB0_AUX_CLK>,
> +                                <&gcc GCC_USB0_PHY_CFG_AHB_CLK>;

Could you please check the indentation here? Vertical lists should be aligned

> +                       clock-names = "aux", "cfg_ahb";

One item per line

> +
> +                       resets =  <&gcc GCC_USB0_PHY_BCR>,
> +                                <&gcc GCC_USB3PHY_0_PHY_BCR>;
> +                       reset-names = "phy","common";
> +                       status = "disabled";
> +
> +                       usb0_ssphy: phy@...00 {

Newer bindings please, without subnodes.

> +                               reg = <0x0007d200 0x130>,       /* tx */
> +                                     <0x0007d400 0x200>,       /* rx */
> +                                     <0x0007d800 0x1f8>,       /* pcs  */
> +                                     <0x0007d600 0x044>;       /* pcs misc */
> +                               #phy-cells = <0>;
> +                               clocks = <&gcc GCC_USB0_PIPE_CLK>;
> +                               clock-names = "pipe0";
> +                               clock-output-names = "usb0_pipe_clk";
> +                       };
> +               };
> +
>                 pcie0_phy: phy@...00 {
>                         compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
>                         reg = <0x00084000 0x1bc>; /* Serdes PLL */
> @@ -436,6 +478,50 @@
>                         status = "disabled";
>                 };
>
> +               usb3: usb3@...0000 {
> +                       compatible = "qcom,ipq9574-dwc3", "qcom,dwc3";
> +                       reg = <0x8af8800 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>;

Indentation?

> +
> +                       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>, <&usb0_ssphy>;
> +                               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";

Is dr_mode a property of the host or of the board?

> +                       };
> +               };
> +
>                 intc: interrupt-controller@...0000 {
>                         compatible = "qcom,msm-qgic2";
>                         reg = <0x0b000000 0x1000>,  /* GICD */
> --
> 2.7.4
>


--
With best wishes
Dmitry

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