linux-kernel - Re: [PATCH v5 4/5] arm64: dts: qcom: sm8450: switch to usb3/dp combo phy

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Message-ID: <ab6391c4-ff38-8286-77ff-c781669f5aa0@linaro.org>
Date:   Fri, 17 Mar 2023 14:09:55 +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 v5 4/5] arm64: dts: qcom: sm8450: switch to usb3/dp combo
 phy

On 17/03/2023 11:12, Neil Armstrong wrote:
> The QMP PHY is a USB3/DP combo phy, switch to the newly
> documented bindings and register the clocks to the GCC
> and DISPCC controllers.
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8450.dtsi | 42 +++++++++++++-----------------------
>   1 file changed, 15 insertions(+), 27 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index 69695eb83897..0b5a151ce138 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -11,6 +11,7 @@
>   #include <dt-bindings/dma/qcom-gpi.h>
>   #include <dt-bindings/gpio/gpio.h>
>   #include <dt-bindings/mailbox/qcom-ipcc.h>
> +#include <dt-bindings/phy/phy-qcom-qmp.h>
>   #include <dt-bindings/power/qcom-rpmpd.h>
>   #include <dt-bindings/interconnect/qcom,sm8450.h>
>   #include <dt-bindings/soc/qcom,gpr.h>
> @@ -748,7 +749,7 @@ gcc: clock-controller@...000 {
>   				 <&ufs_mem_phy_lanes 0>,
>   				 <&ufs_mem_phy_lanes 1>,
>   				 <&ufs_mem_phy_lanes 2>,
> -				 <0>;
> +				 <&usb_1_qmpphy QMP_USB43DP_USB3_PIPE_CLK>;
>   			clock-names = "bi_tcxo",
>   				      "sleep_clk",
>   				      "pcie_0_pipe_clk",
> @@ -2034,37 +2035,24 @@ usb_1_hsphy: phy@...3000 {
>   			resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
>   		};
>   
> -		usb_1_qmpphy: phy-wrapper@...9000 {
> -			compatible = "qcom,sm8450-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@...8000 {
> +			compatible = "qcom,sm8450-qmp-usb3-dp-phy";
> +			reg = <0 0x088e8000 0 0x4000>;

This should be 0x3000 too, like 8350

>   
>   			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";
>   		};
>   
>   		remoteproc_slpi: remoteproc@...0000 {
> @@ -2972,8 +2960,8 @@ dispcc: clock-controller@...0000 {
>   				 <&mdss_dsi0_phy 1>,
>   				 <&mdss_dsi1_phy 0>,
>   				 <&mdss_dsi1_phy 1>,
> -				 <0>, /* dp0 */
> -				 <0>,
> +				 <&usb_1_qmpphy QMP_USB43DP_DP_LINK_CLK>,
> +				 <&usb_1_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
>   				 <0>, /* dp1 */
>   				 <0>,
>   				 <0>, /* dp2 */
> @@ -4168,7 +4156,7 @@ 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 QMP_USB43DP_USB3_PHY>;
>   				phy-names = "usb2-phy", "usb3-phy";
>   			};
>   		};
> 

-- 
With best wishes
Dmitry