linux-kernel - [RFC PATCH 3/3] arm64: dts: allwinner: h700: Enable USB OTG

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Message-ID: <20250118102207.9339-3-simons.philippe@gmail.com>
Date: Sat, 18 Jan 2025 11:22:06 +0100
From: Philippe Simons <simons.philippe@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Allwinner sunXi SoC support),
	linux-sunxi@...ts.linux.dev (open list:ARM/Allwinner sunXi SoC support),
	linux-kernel@...r.kernel.org (open list)
Cc: Philippe Simons <simons.philippe@...il.com>
Subject: [RFC PATCH 3/3] arm64: dts: allwinner: h700: Enable USB OTG

RG35XX have a GPIO controlled regulator for phy0 vbus, add it.
Enable HCI0s controllers and otg for dr_mode.
Add phy0 properties to descrive id_det, external vbus, and internal vbus

Signed-off-by: Philippe Simons <simons.philippe@...il.com>
---
 .../sun50i-h700-anbernic-rg35xx-2024.dts      | 25 +++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
index 80ccab7b5..5a6ae42de 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
@@ -175,6 +175,16 @@ reg_vcc5v: regulator-vcc5v { /* USB-C power input */
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 	};
+
+	reg_usb0_vbus: regulator-usb0-vbus {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&pio 8 16 GPIO_ACTIVE_HIGH>; /* PI16 */
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "usb0-vbus";
+		vin-supply = <&reg_boost>;
+	};
 };
 
 &cpu0 {
@@ -337,12 +347,23 @@ &uart0 {
 	status = "okay";
 };
 
-/* the AXP717 has USB type-C role switch functionality, not yet described by the binding */
+/* the AXP717 has USB type-C role switch functionality */
 &usbotg {
-	dr_mode = "peripheral";   /* USB type-C receptable */
+	dr_mode = "otg";   /* USB type-C receptable */
+	status = "okay";
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ohci0 {
 	status = "okay";
 };
 
 &usbphy {
+	usb0_id_det-gpios = <&pio 8 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PI4 */
+	usb0_vbus_power-supply = <&usb_power>;
+	usb0_vbus-supply = <&reg_usb0_vbus>;
 	status = "okay";
 };
-- 
2.47.1