ARM64: dts: marvell: armada-3720-db: Add phy for USB3

Now that the gpio expander is present in the dts, use it to add an USB3
PHY using one of these gpio as a regulator.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
index 864936acc316..01e583c07d46 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
@@ -46,6 +46,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include "armada-372x.dtsi"
 
 / {
@@ -60,6 +61,21 @@
                 device_type = "memory";
                 reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
         };
+
+        exp_usb3_vbus: usb3-vbus {
+                compatible = "regulator-fixed";
+                regulator-name = "usb3-vbus";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+                enable-active-high;
+                regulator-always-on;
+                gpio = <&gpio_exp 1 GPIO_ACTIVE_HIGH>;
+        };
+
+        usb3_phy: usb3-phy {
+                compatible = "usb-nop-xceiv";
+                vcc-supply = <&exp_usb3_vbus>;
+        };
 };
 
 &i2c0 {
@@ -127,6 +143,7 @@
 /* CON31 */
 &usb3 {
         status = "okay";
+        usb-phy = <&usb3_phy>;
 };
 
 /* CON17 (PCIe) / CON12 (mini-PCIe) */