[PATCH 5/5] arm64: dts: rockchip: rk3399-evb-ind: Add support for DisplayPort

Chaoyi Chen kernel at airkyi.com
Tue Jul 15 11:24:56 UTC 2025


From: Chaoyi Chen <chaoyi.chen at rock-chips.com>

The RK3399 EVB IND board has a Type-C interface DisplayPort.
It use fusb302 chip as Type-C controller.

Signed-off-by: Chaoyi Chen <chaoyi.chen at rock-chips.com>
---
 .../boot/dts/rockchip/rk3399-evb-ind.dts      | 119 ++++++++++++++++++
 1 file changed, 119 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb-ind.dts b/arch/arm64/boot/dts/rockchip/rk3399-evb-ind.dts
index 70aee1ab904c..9ceda32456a0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb-ind.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb-ind.dts
@@ -4,6 +4,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/usb/pd.h>
 #include "rk3399.dtsi"
 
 / {
@@ -19,6 +20,16 @@ chosen {
 		stdout-path = "serial2:1500000n8";
 	};
 
+	vbus_typec: vbus-typec-regulator {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc5v0_typec0_en>;
+		regulator-name = "vbus_typec";
+		vin-supply = <&vcc5v0_sys>;
+	};
+
 	vcc5v0_sys: regulator-vcc5v0-sys {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -29,6 +40,16 @@ vcc5v0_sys: regulator-vcc5v0-sys {
 		regulator-max-microvolt = <5000000>;
 		regulator-min-microvolt = <5000000>;
 	};
+
+	sound: sound {
+		compatible = "rockchip,rk3399-gru-sound";
+		rockchip,cpu = <&i2s0 &spdif>;
+	};
+};
+
+&cdn_dp {
+	status = "okay";
+	phys = <&tcphy0_dp>;
 };
 
 &cpu_b0 {
@@ -341,6 +362,66 @@ regulator-state-mem {
 	};
 };
 
+&i2c4 {
+	i2c-scl-rising-time-ns = <475>;
+	i2c-scl-falling-time-ns = <26>;
+	status = "okay";
+
+	usbc0: fusb302 at 22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <RK_PA2 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usbc0_int>;
+		vbus-supply = <&vbus_typec>;
+		status = "okay";
+
+		usb_con: connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			data-role = "dual";
+			power-role = "dual";
+			try-power-role = "sink";
+			op-sink-microwatt = <1000000>;
+			sink-pdos =
+				<PDO_FIXED(5000, 2500, PDO_FIXED_USB_COMM)>;
+			source-pdos =
+				<PDO_FIXED(5000, 1500, PDO_FIXED_USB_COMM)>;
+
+			displayport = <&cdn_dp>;
+
+			altmodes {
+				displayport {
+					svid = /bits/ 16 <0xff01>;
+					vdo = <0xffffffff>;
+				};
+			};
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port at 0 {
+					reg = <0>;
+
+					usbc0_orien_sw: endpoint {
+						remote-endpoint = <&tcphy0_orientation_switch>;
+					};
+				};
+
+				port at 1 {
+					reg = <1>;
+
+					dp_mode_sw: endpoint {
+						remote-endpoint = <&tcphy_dp_altmode_switch>;
+					};
+				};
+			};
+		};
+	};
+};
+
 &i2s2 {
 	status = "okay";
 };
@@ -354,6 +435,16 @@ &io_domains {
 };
 
 &pinctrl {
+	usb-typec {
+		usbc0_int: usbc0-int {
+			rockchip,pins = <1 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		vcc5v0_typec0_en: vcc5v0-typec0-en {
+			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	pmic {
 		pmic_int_l: pmic-int-l {
 			rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
@@ -400,8 +491,35 @@ &sdmmc {
 	status = "okay";
 };
 
+&sound {
+	rockchip,codec = <&cdn_dp>;
+	status = "okay";
+};
+
+&spdif {
+	status = "okay";
+};
+
 &tcphy0 {
+	mode-switch;
+	orientation-switch;
 	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		tcphy0_orientation_switch: endpoint at 0 {
+			reg = <0>;
+			remote-endpoint = <&usbc0_orien_sw>;
+		};
+
+		tcphy_dp_altmode_switch: endpoint at 1 {
+			reg = <1>;
+			remote-endpoint = <&dp_mode_sw>;
+		};
+	};
+
 };
 
 &tcphy1 {
@@ -461,6 +579,7 @@ &usb_host1_ohci {
 };
 
 &usbdrd_dwc3_0 {
+	usb-role-switch;
 	status = "okay";
 };
 
-- 
2.49.0



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