linux-kernel - [PATCH 2/3] arm64: dts: rockchip: complete USB nodes on ROCK 4D

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Message-Id: <20250630-rock4d-reg-usb-wifi-v1-2-1057f412d98c@collabora.com>
Date: Mon, 30 Jun 2025 17:36:34 +0200
From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: kernel@...labora.com, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Subject: [PATCH 2/3] 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@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 41 +++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
index 352e3df165688219bfedc19734d9eb32c547ec44..ed8b018539acb77328627c24b88a5a220fe085d2 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
@@ -180,7 +180,21 @@ vcc_5v0_host: regulator-vcc-5v0-host {
 		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 {
@@ -682,7 +696,11 @@ pcie_pwren: pcie-pwren {
 
 	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>;
+
 		};
 	};
 };
@@ -721,15 +739,34 @@ &u2phy0 {
 	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";
 };
 
+&usbdp_phy {
+	status = "okay";
+};
+
+&usb_drd0_dwc3 {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &usb_drd1_dwc3 {
 	dr_mode = "host";
 	status = "okay";

-- 
2.50.0