arm64: dts: qcom: sm7225-fairphone-fp4: Enable USB role switching

Configure the Type-C and VBUS regulator on PM7250B and wire it up to the
USB PHY, so that USB role and orientation switching works.

For now USB Power Delivery properties are skipped / disabled, so that
the (presumably) bootloader-configured charger doesn't get messed with
and we can charge the phone with at least some amount of power.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240530-fp4-tcpm-v3-3-612d4bbd5e09@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

3 files changed, 108 insertions, 1 deletions

diff --git a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
index dddd6e44d280..88ee04973a2f 100644
--- a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
+++ b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
@@ -375,6 +375,7 @@
 };
 
 &usb_1_dwc3 {
+	/delete-property/ usb-role-switch;
 	maximum-speed = "super-speed";
 	dr_mode = "peripheral";
 };
diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
index acf0b0f73af9..1ac626d963b8 100644
--- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
@@ -1715,10 +1715,39 @@
 				 <&gcc GCC_USB3_DP_PHY_PRIM_BCR>;
 			reset-names = "phy", "common";
 
+			orientation-switch;
+
 			#clock-cells = <1>;
 			#phy-cells = <1>;
 
 			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					usb_1_qmpphy_out: endpoint {
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					usb_1_qmpphy_usb_ss_in: endpoint {
+						remote-endpoint = <&usb_1_dwc3_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					usb_1_qmpphy_dp_in: endpoint {
+					};
+				};
+			};
 		};
 
 		dc_noc: interconnect@9160000 {
@@ -1894,6 +1923,27 @@
 				snps,hird-threshold = /bits/ 8 <0x10>;
 				phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
 				phy-names = "usb2-phy", "usb3-phy";
+				usb-role-switch;
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						usb_1_dwc3_hs_out: endpoint {
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						usb_1_dwc3_ss_out: endpoint {
+							remote-endpoint = <&usb_1_qmpphy_usb_ss_in>;
+						};
+					};
+				};
 			};
 		};
 
diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
index bc67e8c1fe4d..d2632f011353 100644
--- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
+++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
@@ -19,6 +19,7 @@
 #include <dt-bindings/leds/common.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/usb/pd.h>
 #include "sm7225.dtsi"
 #include "pm6150l.dtsi"
 #include "pm6350.dtsi"
@@ -543,6 +544,53 @@
 	};
 };
 
+&pm7250b_typec {
+	vdd-pdphy-supply = <&vreg_l3a>;
+
+	status = "okay";
+
+	connector {
+		compatible = "usb-c-connector";
+
+		power-role = "dual";
+		data-role = "dual";
+		self-powered;
+
+		/*
+		 * Disable USB Power Delivery for now, seems to need extra work
+		 * to support role switching while also letting the battery
+		 * charge still - without charger driver
+		 */
+		typec-power-opmode = "default";
+		pd-disable;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				pm7250b_hs_in: endpoint {
+					remote-endpoint = <&usb_1_dwc3_hs_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				pm7250b_ss_in: endpoint {
+					remote-endpoint = <&usb_1_qmpphy_out>;
+				};
+			};
+		};
+	};
+};
+
+&pm7250b_vbus {
+	regulator-min-microamp = <500000>;
+	regulator-max-microamp = <1500000>;
+	status = "okay";
+};
+
 &pmk8350_rtc {
 	status = "okay";
 };
@@ -726,7 +774,11 @@
 
 &usb_1_dwc3 {
 	maximum-speed = "super-speed";
-	dr_mode = "peripheral";
+	dr_mode = "otg";
+};
+
+&usb_1_dwc3_hs_out {
+	remote-endpoint = <&pm7250b_hs_in>;
 };
 
 &usb_1_hsphy {
@@ -744,6 +796,10 @@
 	status = "okay";
 };
 
+&usb_1_qmpphy_out {
+	remote-endpoint = <&pm7250b_ss_in>;
+};
+
 &wifi {
 	vdd-0.8-cx-mx-supply = <&vreg_l4a>;
 	vdd-1.8-xo-supply = <&vreg_l7a>;