linux-kernel - Re: [PATCH 03/12] arm64: dts: qcom: sm8450: move USB graph to the SoC dtsi

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Date: Mon, 29 Apr 2024 14:51:40 +0200
From: neil.armstrong@...aro.org
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/12] arm64: dts: qcom: sm8450: move USB graph to the SoC
 dtsi

On 29/04/2024 14:43, Dmitry Baryshkov wrote:
> Move the graph connection between USB host, USB SS PHY and DP port to
> the SoC dtsi file. They are linked in hardware in this way.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8450-hdk.dts | 25 +++----------------------
>   arch/arm64/boot/dts/qcom/sm8450.dtsi    | 11 +++++++++++
>   2 files changed, 14 insertions(+), 22 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450-hdk.dts b/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
> index 3be46b56c723..9926294e4f84 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
> @@ -674,17 +674,10 @@ &mdss_dsi0_phy {
>   
>   &mdss_dp0 {
>   	status = "okay";
> +};
>   
> -	ports {
> -		port@1 {
> -			reg = <1>;
> -
> -			mdss_dp0_out: endpoint {
> -				data-lanes = <0 1>;
> -				remote-endpoint = <&usb_1_qmpphy_dp_in>;
> -			};
> -		};
> -	};
> +&mdss_dp0_out {
> +	data-lanes = <0 1>;
>   };
>   
>   &pcie0 {
> @@ -1114,10 +1107,6 @@ &usb_1_dwc3_hs {
>   	remote-endpoint = <&pmic_glink_hs_in>;
>   };
>   
> -&usb_1_dwc3_ss {
> -	remote-endpoint = <&usb_1_qmpphy_usb_ss_in>;
> -};
> -
>   &usb_1_hsphy {
>   	status = "okay";
>   
> @@ -1135,18 +1124,10 @@ &usb_1_qmpphy {
>   	orientation-switch;
>   };
>   
> -&usb_1_qmpphy_dp_in {
> -	remote-endpoint = <&mdss_dp0_out>;
> -};
> -
>   &usb_1_qmpphy_out {
>   	remote-endpoint = <&pmic_glink_ss_in>;
>   };
>   
> -&usb_1_qmpphy_usb_ss_in {
> -	remote-endpoint = <&usb_1_dwc3_ss>;
> -};
> -
>   &vamacro {
>   	pinctrl-0 = <&dmic01_default>, <&dmic23_default>;
>   	pinctrl-names = "default";
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index 616461fcbab9..d138b90bb280 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -2321,6 +2321,7 @@ port@1 {
>   					reg = <1>;
>   
>   					usb_1_qmpphy_usb_ss_in: endpoint {
> +						remote-endpoint = <&usb_1_dwc3_ss>;
>   					};
>   				};
>   
> @@ -2328,6 +2329,7 @@ port@2 {
>   					reg = <2>;
>   
>   					usb_1_qmpphy_dp_in: endpoint {
> +						remote-endpoint = <&mdss_dp0_out>;
>   					};
>   				};
>   			};
> @@ -3119,6 +3121,14 @@ mdss_dp0_in: endpoint {
>   							remote-endpoint = <&dpu_intf0_out>;
>   						};
>   					};
> +
> +					port@1 {
> +						reg = <1>;
> +
> +						mdss_dp0_out: endpoint {
> +							remote-endpoint = <&usb_1_qmpphy_dp_in>;
> +						};
> +		};
>   				};
>   
>   				dp_opp_table: opp-table {
> @@ -4584,6 +4594,7 @@ port@1 {
>   						reg = <1>;
>   
>   						usb_1_dwc3_ss: endpoint {
> +							remote-endpoint = <&usb_1_qmpphy_usb_ss_in>;
>   						};
>   					};
>   				};
> 

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>