arm64: dts: qcom: sm8350-hdk: Add QMP & DP to SuperSpeed graph

With support for the QMP combo phy to react to USB Type-C switch events,
introduce it as the next hop for the SuperSpeed lanes of the Type-C
connector, and connect the output of the DisplayPort controller
to the QMP combo phy.

This allows the TCPM to perform orientation switching of both USB and
DisplayPort signals.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230503-topic-sm8450-graphics-dp-next-v3-3-6c43d293995f@linaro.org

arch/arm64/boot/dts/qcom/sm8350-hdk.dts

@@ -58,7 +58,15 @@ port@1 {
 					reg = <1>;
 
 					pmic_glink_ss_in: endpoint {
-						remote-endpoint = <&usb_1_dwc3_ss>;
+						remote-endpoint = <&usb_1_qmpphy_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_sbu: endpoint {
+						remote-endpoint = <&fsa4480_sbu_mux>;
 					};
 				};
 			};
@@ -326,6 +334,37 @@ zap-shader {
 	};
 };
 
+&i2c13 {
+	clock-frequency = <100000>;
+
+	status = "okay";
+
+	typec-mux@42 {
+		compatible = "fcs,fsa4480";
+		reg = <0x42>;
+
+		interrupts-extended = <&tlmm 2 IRQ_TYPE_LEVEL_LOW>;
+
+		vcc-supply = <&vreg_bob>;
+		mode-switch;
+		orientation-switch;
+		svid = /bits/ 16 <0xff01>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				fsa4480_sbu_mux: endpoint {
+					remote-endpoint = <&pmic_glink_sbu>;
+				};
+			};
+		};
+	};
+};
+
 &i2c15 {
 	clock-frequency = <400000>;
 	status = "okay";
@@ -370,6 +409,21 @@ &mdss {
 	status = "okay";
 };
 
+&mdss_dp {
+	status = "okay";
+
+	ports {
+		port@1 {
+			reg = <1>;
+
+			mdss_dp0_out: endpoint {
+				data-lanes = <0 1>;
+				remote-endpoint = <&usb_1_qmpphy_dp_in>;
+			};
+		};
+	};
+};
+
 &mdss_mdp {
 	status = "okay";
 };
@@ -416,6 +470,10 @@ &qupv3_id_0 {
 	status = "okay";
 };
 
+&qupv3_id_1 {
+	status = "okay";
+};
+
 &qupv3_id_2 {
 	status = "okay";
 };
@@ -716,7 +774,7 @@ &usb_1_dwc3_hs {
 };
 
 &usb_1_dwc3_ss {
-	remote-endpoint = <&pmic_glink_ss_in>;
+	remote-endpoint = <&usb_1_qmpphy_usb_ss_in>;
 };
 
 &usb_1_hsphy {
@@ -732,6 +790,20 @@ &usb_1_qmpphy {
 
 	vdda-phy-supply = <&vreg_l6b_1p2>;
 	vdda-pll-supply = <&vreg_l1b_0p88>;
+
+	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>;
 };
 
 &usb_2 {