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>

2 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
index 20251a3ea813..56a452bc326c 100644
--- a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
+++ b/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 @@
 &uart2 {
         status = "okay";
 };
+
+&usbh1 {
+        vbus-supply = <&usbh_vbus_reg>;
+};
diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi
index 43e7539daf5c..82f5728be5c9 100644
--- a/arch/arm/boot/dts/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/vf-colibri.dtsi
@@ -176,5 +176,11 @@
                                 VF610_PAD_PTD3__UART2_CTS               0x21a1
                         >;
                 };
+
+                pinctrl_usbh1_reg: gpio_usb_vbus {
+                        fsl,pins = <
+                                VF610_PAD_PTD4__GPIO_83                 0x22ed
+                        >;
+                };
         };
 };