[PATCH] ARM: dts: sun8i: fix USB Ethernet of Orange Pi R1

[Icenowy Zheng]

Orange Pi R1 uses a Realtek RTL8152B USB Ethernet chip, which is easily
seen on the board but not show in the schematics. A regulator for the
power of the RTL8152B chip is hidden, which uses the same pin with the
Wi-Fi regulator on the original Orange Pi Zero.

Add this regulator back to the device tree, and bind it to USB1.

Tested-by: Hauke Mehrtens <ha...@hauke-m.de>
Signed-off-by: Icenowy Zheng <icen...@aosc.io>
---
 arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts 
b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts
index 32a6d312422e..f7f61cbcd15a 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts
@@ -49,6 +49,20 @@
 
        /delete-node/ reg_vcc_wifi;
 
+       /*
+        * Ths pin of this regulator is the same with the Wi-Fi extra
+        * regulator on the original Zero. However it's used for USB
+        * Ethernet rather than the Wi-Fi now.
+        */
+       reg_vcc_usb_eth: reg-vcc-usb-ethernet {
+               compatible = "regulator-fixed";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-name = "vcc-usb-ethernet";
+               enable-active-high;
+               gpio = <&pio 0 20 GPIO_ACTIVE_HIGH>;
+       };
+
        aliases {
                ethernet1 = &rtl8189etv;
        };
@@ -71,3 +85,7 @@
                reg = <1>;
        };
 };
+
+&usbphy {
+       usb1_vbus-supply = <&reg_vcc_usb_eth>;
+};
-- 
2.14.2