arm64: dts: rockchip: add usb-id extcon on rk3588 tiger

The Q7 standard specifies a usb-id pin on the connector to distiuish
between host and device mode. Model this via the usb-id extcon binding.

While the pin is part of the Q7 standard, so part of the module, the
extcon stays disabled in the som dtsi and will only be enabled in a
baseboard using it.

Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20240422163951.2604273-3-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: Heiko Stuebner

arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi

@@ -23,6 +23,14 @@
 		reset-gpios = <&gpio2 RK_PA3 GPIO_ACTIVE_HIGH>;
 	};
 
+	extcon_usb3: extcon-usb3 {
+		compatible = "linux,extcon-usb-gpio";
+		id-gpios = <&gpio3 RK_PC0 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb3_id>;
+		status = "disabled";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
@@ -327,6 +335,13 @@
 			rockchip,pins = <1 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	usb3 {
+		usb3_id: usb3-id {
+			rockchip,pins =
+			  <3 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };
 
 &saradc {