From: André Draszik <andre.draszik@linaro.org>
Date: Mon, 29 Apr 2024 10:35:50 +0000 (+0100)
Subject: arm64: dts: exynos: gs101-oriole: enable USB on this board
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b93b3140e82a0e48442087c38346eabfb92c63af;p=linux.git

arm64: dts: exynos: gs101-oriole: enable USB on this board

Pixel 6 (Oriole) has a USB-C connector that can act as host or device.

The USB role is detected dynamically using a MAX77759 TCPCI controller,
but since there is no driver for the MAX77759, the role is defaulted to
peripheral, without any endpoints / ports.

This allows Oriole to be configured as a gadget, e.g. using configfs.

As PMIC regulators are not implemented yet, we rely on USB LDOs being
enabled by the bootloader. A placeholder regulator is used for now.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20240429-usb-dts-gs101-v2-2-7c1797c9db80@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
index 6be15e990b651..03b2a6fdfdc45 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
+++ b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
@@ -53,6 +53,12 @@
 			wakeup-source;
 		};
 	};
+
+	/* TODO: Remove this once PMIC is implemented  */
+	reg_placeholder: regulator-0 {
+		compatible = "regulator-fixed";
+		regulator-name = "placeholder_reg";
+	};
 };
 
 &ext_24_5m {
@@ -106,6 +112,24 @@
 	status = "okay";
 };
 
+&usbdrd31 {
+	status = "okay";
+	vdd10-supply = <&reg_placeholder>;
+	vdd33-supply = <&reg_placeholder>;
+};
+
+&usbdrd31_dwc3 {
+	dr_mode = "otg";
+	usb-role-switch;
+	role-switch-default-mode = "peripheral";
+	maximum-speed = "super-speed-plus";
+	status = "okay";
+};
+
+&usbdrd31_phy {
+	status = "okay";
+};
+
 &usi_uart {
 	samsung,clkreq-on; /* needed for UART mode */
 	status = "okay";