linux-kernel - Re: [PATCH v2 2/5] arm64: dts: qcom: sm8350: switch to combo usb3/dp phy

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Date:   Fri, 10 Feb 2023 13:06:24 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/5] arm64: dts: qcom: sm8350: switch to combo usb3/dp
 phy

On 10/02/2023 12:34, Neil Armstrong wrote:
> The first QMP PHY is an USB3/DP combo phy, switch to the newly
> documented bindings and register the clocks to the GCC
> and DISPCC controllers.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>

With the following few nits fixed:
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

> ---
>   arch/arm64/boot/dts/qcom/sm8350.dtsi | 40 ++++++++++++------------------------
>   1 file changed, 13 insertions(+), 27 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> index 04bb838189a6..d490ce84a022 100644
> --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> @@ -652,7 +652,7 @@ gcc: clock-controller@...000 {
>   				 <&ufs_mem_phy_lanes 0>,
>   				 <&ufs_mem_phy_lanes 1>,
>   				 <&ufs_mem_phy_lanes 2>,
> -				 <0>,
> +				 <&usb_1_qmpphy 0>,


<&usb_1_qmpphy QMP_USB43DP_USB3_PIPE_CLK> ?


>   				 <0>;
>   		};
>   
> @@ -2601,37 +2601,24 @@ usb_2_hsphy: phy@...4000 {
>   			resets = <&gcc GCC_QUSB2PHY_SEC_BCR>;
>   		};
>   
> -		usb_1_qmpphy: phy-wrapper@...9000 {
> -			compatible = "qcom,sm8350-qmp-usb3-phy";
> -			reg = <0 0x088e9000 0 0x200>,
> -			      <0 0x088e8000 0 0x20>;
> -			status = "disabled";
> -			#address-cells = <2>;
> -			#size-cells = <2>;
> -			ranges;
> +		usb_1_qmpphy: phy@...9000 {
> +			compatible = "qcom,sm8350-qmp-usb3-dp-phy";
> +			reg = <0 0x088e8000 0 0x3000>;
>   
>   			clocks = <&gcc GCC_USB3_PRIM_PHY_AUX_CLK>,
>   				 <&rpmhcc RPMH_CXO_CLK>,
> -				 <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>;
> -			clock-names = "aux", "ref_clk_src", "com_aux";
> +				 <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>,
> +				 <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> +			clock-names = "aux", "ref", "com_aux", "usb3_pipe";
>   
>   			resets = <&gcc GCC_USB3_DP_PHY_PRIM_BCR>,
>   				 <&gcc GCC_USB3_PHY_PRIM_BCR>;
>   			reset-names = "phy", "common";
>   
> -			usb_1_ssphy: phy@...9200 {
> -				reg = <0 0x088e9200 0 0x200>,
> -				      <0 0x088e9400 0 0x200>,
> -				      <0 0x088e9c00 0 0x400>,
> -				      <0 0x088e9600 0 0x200>,
> -				      <0 0x088e9800 0 0x200>,
> -				      <0 0x088e9a00 0 0x100>;
> -				#phy-cells = <0>;
> -				#clock-cells = <0>;
> -				clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> -				clock-names = "pipe0";
> -				clock-output-names = "usb3_phy_pipe_clk_src";
> -			};
> +			#clock-cells = <1>;
> +			#phy-cells = <1>;
> +
> +			status = "disabled";
>   		};
>   
>   		usb_2_qmpphy: phy-wrapper@...b000 {
> @@ -2727,7 +2714,7 @@ usb_1_dwc3: usb@...0000 {
>   				iommus = <&apps_smmu 0x0 0x0>;
>   				snps,dis_u2_susphy_quirk;
>   				snps,dis_enblslpm_quirk;
> -				phys = <&usb_1_hsphy>, <&usb_1_ssphy>;
> +				phys = <&usb_1_hsphy>, <&usb_1_qmpphy 0>;


<&usb_1_qmpphy QMP_USB43DP_USB3_PHY> ?


>   				phy-names = "usb2-phy", "usb3-phy";
>   			};
>   		};
> @@ -3092,8 +3079,7 @@ dispcc: clock-controller@...0000 {
>   			clocks = <&rpmhcc RPMH_CXO_CLK>,
>   				 <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>,
>   				 <&mdss_dsi1_phy 0>, <&mdss_dsi1_phy 1>,
> -				 <0>,
> -				 <0>;
> +				 <&usb_1_qmpphy 1>, <&usb_1_qmpphy 2>;

<&usb_1_qmpphy QMP_USB43DP_DP_LINK_CLK>, <&usb_1_qmpphy 
QMP_USB43DP_DP_VCO_DIV_CLK>

>   			clock-names = "bi_tcxo",
>   				      "dsi0_phy_pll_out_byteclk",
>   				      "dsi0_phy_pll_out_dsiclk",
> 

-- 
With best wishes
Dmitry