ARM: dts: vf-colibri: add USB regulators

Add structure of USB supply logic. The USB hosts power enable
regulator is needed to control VBUS supply on the Colibri carrier
board.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/vf-colibri-eval-v3.dtsi

@@ -11,6 +11,34 @@ / {
 	chosen {
 		bootargs = "console=ttyLP0,115200";
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		sys_5v0_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "5v0";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
+
+		/* USBH_PEN */
+		usbh_vbus_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_usbh1_reg>;
+			reg = <1>;
+			regulator-name = "usbh_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio3 19 GPIO_ACTIVE_LOW>;
+			vin-supply = <&sys_5v0_reg>;
+		};
+	};
 };
 
 &bl {
@@ -62,3 +90,7 @@ &uart1 {
 &uart2 {
 	status = "okay";
 };
+
+&usbh1 {
+	vbus-supply = <&usbh_vbus_reg>;
+};

arch/arm/boot/dts/vf-colibri.dtsi

@@ -176,5 +176,11 @@ VF610_PAD_PTD2__UART2_RTS		0x21a2
 				VF610_PAD_PTD3__UART2_CTS		0x21a1
 			>;
 		};
+
+		pinctrl_usbh1_reg: gpio_usb_vbus {
+			fsl,pins = <
+				VF610_PAD_PTD4__GPIO_83			0x22ed
+			>;
+		};
 	};
 };