[PATCH v3 5/5] arm64: dts: rockchip: rk3399-evb-ind: Add support for DisplayPort

Chaoyi Chen
2025-07-29T09:14:45Z

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

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

fusb302 chip ---> USB/DP PHY0 <----> CDN-DP controller

Signed-off-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
---

Changes in v3:
- Fix wrong vdo value.
- Fix port node in usb-c-connector.

Changes in v2:
- Add endpoint to link DP PHY and DP controller.
- Fix devicetree coding style.

.../boot/dts/rockchip/rk3399-evb-ind.dts | 146 ++++++++++++++++++
1 file changed, 146 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..aeeee6bd2973 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 +20,21 @@ chosen {
stdout-path = "serial2:1500000n8";
};

+ sound: sound {
+ compatible = "rockchip,rk3399-gru-sound";
+ rockchip,cpu = <&i2s0 &spdif>;
+ };
+
+ vbus_typec: regulator-vbus-typec {
+ 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;
@@ -31,6 +47,11 @@ vcc5v0_sys: regulator-vcc5v0-sys {
};
};

+&cdn_dp {
+ phys = <&tcphy0_dp>;
+ status = "okay";
+};
+
&cpu_b0 {
cpu-supply = <&vdd_cpu_b>;
};
@@ -55,6 +76,12 @@ &cpu_l3 {
cpu-supply = <&vdd_cpu_l>;
};

+&dp_out {
+ dp_controller_output: endpoint {
+ remote-endpoint = <&dp_phy_in>;
+ };
+};
+
&emmc_phy {
status = "okay";
};
@@ -341,6 +368,71 @@ regulator-state-mem {
};
};

+&i2c4 {
+ i2c-scl-rising-time-ns = <475>;
+ i2c-scl-falling-time-ns = <26>;
+ status = "okay";
+
+ usbc0: typec-portc@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>;
+
+ 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)>;
+
+ altmodes {
+ displayport {
+ svid = /bits/ 16 <0xff01>;
+ vdo = <0x00001c46>;
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ usbc_hs: endpoint {
+ remote-endpoint = <&u2phy0_typec_hs>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ usbc_ss: endpoint {
+ remote-endpoint = <&tcphy0_typec_ss>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ usbc_dp: endpoint {
+ remote-endpoint = <&tcphy0_typec_dp>;
+ };
+ };
+ };
+ };
+ };
+};
+
&i2s2 {
status = "okay";
};
@@ -354,6 +446,16 @@ &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>;
@@ -400,10 +502,48 @@ &sdmmc {
status = "okay";
};

+&sound {
+ rockchip,codec = <&cdn_dp>;
+ status = "okay";
+};
+
+&spdif {
+ status = "okay";
+};
+
&tcphy0 {
status = "okay";
};

+&tcphy0_dp {
+ mode-switch;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tcphy0_typec_dp: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&usbc_dp>;
+ };
+
+ dp_phy_in: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&dp_controller_output>;
+ };
+ };
+};
+
+&tcphy0_usb3 {
+ orientation-switch;
+
+ port {
+ tcphy0_typec_ss: endpoint {
+ remote-endpoint = <&usbc_ss>;
+ };
+ };
+};
+
&tcphy1 {
status = "okay";
};
@@ -418,6 +558,12 @@ &tsadc {

&u2phy0 {
status = "okay";
+
+ port {
+ u2phy0_typec_hs: endpoint {
+ remote-endpoint = <&usbc_hs>;
+ };
+ };
};

&u2phy0_host {
--
2.49.0