arm64: dts: rockchip: complete USB nodes on ROCK 4D

The ROCK 4D uses both USB controllers, and both of which in host mode.
However, it still names one of the supplies for them "OTG" in the
schematic.

Fix the "host" supply's input, and add the "otg" supply. Enable the
remaining USB PHY nodes, and the first controller node as well.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250630-rock4d-reg-usb-wifi-v1-2-1057f412d98c@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: Nicolas Frattaroli

arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts

@@ -180,7 +180,21 @@
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		regulator-name = "vcc5v0_host";
-		vin-supply = <&vcc_5v0_device>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+
+	vcc_5v0_otg: regulator-vcc-5v0-otg {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio2 RK_PD2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_otg_pwren>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "vcc5v0_otg";
+		vin-supply = <&vcc_5v0_sys>;
 	};
 
 	vcc_5v0_sys: regulator-vcc-5v0-sys {
@@ -699,7 +713,11 @@
 
 	usb {
 		usb_host_pwren: usb-host-pwren {
-			rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+			rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+		usb_otg_pwren: usb-otg-pwren {
+			rockchip,pins = <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_down>;
+
 		};
 	};
 };
@@ -738,10 +756,20 @@
 	status = "okay";
 };
 
+&u2phy0_otg {
+	phy-supply = <&vcc_5v0_otg>;
+	status = "okay";
+};
+
 &u2phy1 {
 	status = "okay";
 };
 
+&u2phy1_otg {
+	phy-supply = <&vcc_5v0_host>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0m0_xfer>;
 	status = "okay";
@@ -751,6 +779,15 @@
 	status = "okay";
 };
 
+&usbdp_phy {
+	status = "okay";
+};
+
+&usb_drd0_dwc3 {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &usb_drd1_dwc3 {
 	dr_mode = "host";
 	status = "okay";