linux-kernel - Re: [PATCH 8/9] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB Type-C display

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Date: Thu, 22 Feb 2024 10:33:19 +0100
From: neil.armstrong@...aro.org
To: Bjorn Andersson <quic_bjorande@...cinc.com>,
 Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Sean Paul <sean@...rly.run>,
 Marijn Suijten <marijn.suijten@...ainline.org>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 cros-qcom-dts-watchers@...omium.org, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org
Subject: Re: [PATCH 8/9] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB Type-C
 display

On 22/02/2024 00:19, Bjorn Andersson wrote:
> With MDSS, pmic_glink, and the redriver in place, wire up the various
> components to enable USB Type-C display on the RB3gen2.
> 
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> ---
>   arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 63 +++++++++++++++++++++++++++-
>   1 file changed, 61 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index 171ed979d55f..4bf1c6351467 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -149,7 +149,15 @@ port@1 {
>   					reg = <1>;
>   
>   					pmic_glink_ss_in: endpoint {
> -						remote-endpoint = <&usb_1_dwc3_ss>;
> +						remote-endpoint = <&redriver_usb_con_ss>;
> +					};
> +				};
> +
> +				port@2 {
> +					reg = <2>;
> +
> +					pmic_glink_sbu_in: endpoint {
> +						remote-endpoint = <&redriver_usb_con_sbu>;
>   					};
>   				};
>   			};
> @@ -476,6 +484,36 @@ typec-mux@1c {
>   
>   		retimer-switch;
>   		orientation-switch;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				redriver_usb_con_ss: endpoint {
> +					remote-endpoint = <&pmic_glink_ss_in>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +
> +				redriver_phy_con_ss: endpoint {
> +					remote-endpoint = <&usb_dp_qmpphy_out>;
> +					data-lanes = <0 1 2 3>;
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +
> +				redriver_usb_con_sbu: endpoint {
> +					remote-endpoint = <&pmic_glink_sbu_in>;
> +				};
> +			};

Nice to see the SBU switching works :-)


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


> +		};
>   	};
>   };
>   
> @@ -483,6 +521,15 @@ &mdss {
>   	status = "okay";
>   };
>   
> +&mdss_dp {
> +	status = "okay";
> +};
> +
> +&mdss_dp_out {
> +	data-lanes = <0 1>;
> +	remote-endpoint = <&usb_dp_qmpphy_dp_in>;
> +};
> +
>   &mdss_edp {
>   	status = "okay";
>   };
> @@ -534,7 +581,7 @@ &usb_1_dwc3_hs {
>   };
>   
>   &usb_1_dwc3_ss {
> -	remote-endpoint = <&pmic_glink_ss_in>;
> +	remote-endpoint = <&usb_dp_qmpphy_usb_ss_in>;
>   };
>   
>   &usb_1_hsphy {
> @@ -554,6 +601,18 @@ &usb_1_qmpphy {
>   	status = "okay";
>   };
>   
> +&usb_dp_qmpphy_out {
> +	remote-endpoint = <&redriver_phy_con_ss>;
> +};
> +
> +&usb_dp_qmpphy_usb_ss_in {
> +	remote-endpoint = <&usb_1_dwc3_ss>;
> +};
> +
> +&usb_dp_qmpphy_dp_in {
> +	remote-endpoint = <&mdss_dp_out>;
> +};
> +
>   &wifi {
>   	memory-region = <&wlan_fw_mem>;
>   };
>