From 6b51f5e1811398dce5c1d67b746dde74c75f6ce7 Mon Sep 17 00:00:00 2001
From: Luca Weiss <luca.weiss@fairphone.com>
Date: Fri, 25 Apr 2025 09:08:15 +0200
Subject: [PATCH] arm64: dts: qcom: qcm6490-fairphone-fp5: Hook up DisplayPort
 over USB-C

Extend the USB graph to connect the OCP96011 switch, the PTN36502
redriver, the USB controllers and the MDSS, so that DisplayPort over
USB-C is working.

Connect some parts of the graph directly in the SoC dtsi since those
parts are wired up like this in the SoC directly.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250425-fp5-pmic-glink-dp-v3-4-cc9c2aeb42fb@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 .../boot/dts/qcom/qcm6490-fairphone-fp5.dts   | 54 +++++++++++++++++--
 arch/arm64/boot/dts/qcom/sc7280.dtsi          |  9 +++-
 2 files changed, 57 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
index e0470be9142c..9e8f9fb57c47 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
@@ -101,7 +101,15 @@
 					reg = <1>;
 
 					pmic_glink_ss_in: endpoint {
-						remote-endpoint = <&usb_1_dwc3_ss>;
+						remote-endpoint = <&redriver_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_sbu: endpoint {
+						remote-endpoint = <&ocp96011_sbu_mux>;
 					};
 				};
 			};
@@ -761,6 +769,13 @@
 
 		mode-switch;
 		orientation-switch;
+
+		port {
+			ocp96011_sbu_mux: endpoint {
+				remote-endpoint = <&pmic_glink_sbu>;
+				data-lanes = <1 0>;
+			};
+		};
 	};
 
 	/* AW86927FCR haptics @ 5a */
@@ -784,6 +799,27 @@
 
 		retimer-switch;
 		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				redriver_ss_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss_in>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				redriver_ss_in: endpoint {
+					remote-endpoint = <&usb_dp_qmpphy_out>;
+				};
+			};
+		};
 	};
 };
 
@@ -805,6 +841,14 @@
 	status = "okay";
 };
 
+&mdss_dp {
+	status = "okay";
+};
+
+&mdss_dp_out {
+	data-lanes = <0 1>;
+};
+
 &mdss_dsi {
 	vdda-supply = <&vreg_l6b>;
 	status = "okay";
@@ -1301,10 +1345,6 @@
 	remote-endpoint = <&pmic_glink_hs_in>;
 };
 
-&usb_1_dwc3_ss {
-	remote-endpoint = <&pmic_glink_ss_in>;
-};
-
 &usb_1_hsphy {
 	vdda-pll-supply = <&vreg_l10c>;
 	vdda18-supply = <&vreg_l1c>;
@@ -1331,6 +1371,10 @@
 	status = "okay";
 };
 
+&usb_dp_qmpphy_out {
+	remote-endpoint = <&redriver_ss_in>;
+};
+
 &venus {
 	firmware-name = "qcom/qcm6490/fairphone5/venus.mbn";
 	status = "okay";
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 7388cabeded3..d9f422da942b 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3671,6 +3671,8 @@
 			#clock-cells = <1>;
 			#phy-cells = <1>;
 
+			orientation-switch;
+
 			ports {
 				#address-cells = <1>;
 				#size-cells = <0>;
@@ -3686,6 +3688,7 @@
 					reg = <1>;
 
 					usb_dp_qmpphy_usb_ss_in: endpoint {
+						remote-endpoint = <&usb_1_dwc3_ss>;
 					};
 				};
 
@@ -3693,6 +3696,7 @@
 					reg = <2>;
 
 					usb_dp_qmpphy_dp_in: endpoint {
+						remote-endpoint = <&mdss_dp_out>;
 					};
 				};
 			};
@@ -4299,6 +4303,7 @@
 						reg = <1>;
 
 						usb_1_dwc3_ss: endpoint {
+							remote-endpoint = <&usb_dp_qmpphy_usb_ss_in>;
 						};
 					};
 				};
@@ -5024,7 +5029,9 @@
 
 					port@1 {
 						reg = <1>;
-						mdss_dp_out: endpoint { };
+						mdss_dp_out: endpoint {
+							remote-endpoint = <&usb_dp_qmpphy_dp_in>;
+						};
 					};
 				};
 
-- 
2.25.1