linux-kernel - Re: [PATCH v3 3/3] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

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Date:   Fri, 6 Jan 2023 11:46:40 -0600
From:   Bjorn Andersson <andersson@...nel.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        agross@...nel.org, bhupesh.linux@...il.com,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        krzysztof.kozlowski@...aro.org, konrad.dybcio@...aro.org
Subject: Re: [PATCH v3 3/3] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

On Thu, Dec 15, 2022 at 03:15:32PM +0530, Bhupesh Sharma wrote:
> Add USB superspeed qmp phy node to dtsi.
> Make sure that the oneplus board dts (which includes the
> sm4250.dtsi) continues 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          | 37 ++++++++++++++++++-
>  2 files changed, 38 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 3f39f25e0721e..4f0d65574448b 100644
> --- a/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> +++ b/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> @@ -232,6 +232,9 @@ &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 e4ce135264f3d..030763187cc3f 100644
> --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> @@ -579,6 +579,39 @@ usb_hsphy: phy@...3000 {
>  			status = "disabled";
>  		};
>  
> +		usb_qmpphy: phy@...5000 {
> +			compatible = "qcom,sm6115-qmp-usb3-phy";
> +			reg = <0x01615000 0x200>;
> +			clocks = <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>,
> +				 <&gcc GCC_USB3_PRIM_CLKREF_CLK>,
> +				 <&gcc GCC_AHB2PHY_USB_CLK>;
> +			clock-names = "com_aux",
> +				      "ref",
> +				      "cfg_ahb";
> +			resets = <&gcc GCC_USB3_PHY_PRIM_SP0_BCR>,
> +				 <&gcc GCC_USB3PHY_PHY_PRIM_SP0_BCR>;
> +			reset-names = "phy", "phy_phy";
> +			status = "disabled";
> +			#clock-cells = <1>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges;
> +
> +			usb_ssphy: phy@...5200 {

These patches looks good, but before introducing any
qcom,sm6115-qmp-usb3-phy in any DT, could we please update the binding
and driver to the new flattened format - to avoid having to revisit this
when we try to introduce DP (which I'm guessing this instance has?)

Regards,
Bjorn

> +				reg = <0x01615200 0x200>,
> +				      <0x01615400 0x200>,
> +				      <0x01615c00 0x400>,
> +				      <0x01615600 0x200>,
> +				      <0x01615800 0x200>,
> +				      <0x01615a00 0x100>;
> +				#phy-cells = <0>;
> +				#clock-cells = <1>;
> +				clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> +				clock-names = "pipe0";
> +				clock-output-names = "usb3_phy_pipe_clk_src";
> +			};
> +		};
> +
>  		qfprom@...0000 {
>  			compatible = "qcom,sm6115-qfprom", "qcom,qfprom";
>  			reg = <0x01b40000 0x7000>;
> @@ -1023,8 +1056,8 @@ usb_dwc3: usb@...0000 {
>  				compatible = "snps,dwc3";
>  				reg = <0x04e00000 0xcd00>;
>  				interrupts = <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>;
> -				phys = <&usb_hsphy>;
> -				phy-names = "usb2-phy";
> +				phys = <&usb_hsphy>, <&usb_ssphy>;
> +				phy-names = "usb2-phy", "usb3-phy";
>  				iommus = <&apps_smmu 0x120 0x0>;
>  				snps,dis_u2_susphy_quirk;
>  				snps,dis_enblslpm_quirk;
> -- 
> 2.38.1
>