[openwrt/openwrt] lantiq: fritz7320: enable USB power supply

[LEDE Commits]

mkresin pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/0011c7ad127ba38b28b8a98642d0f815a85887a0

commit 0011c7ad127ba38b28b8a98642d0f815a85887a0
Author: Mathias Kresin <dev at kresin.me>
AuthorDate: Wed Feb 17 23:37:54 2021 +0100

    lantiq: fritz7320: enable USB power supply
    
    The USB ports if a FRIZZ!Box 7320 do not supply power to connected
    devices.
    
    Add the GPIOs enabling USB power as regulator, to enable USB power
    supply as soon as the USB driver is loaded.
    
    Fixes FS#3624
    
    Signed-off-by: Mathias Kresin <dev at kresin.me>
    (cherry picked from commit 6e4e97b2256327bb380ee2a83da9a1ddf657e395)
---
 .../mips/boot/dts/lantiq/ar9_avm_fritz7320.dts     | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts b/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts
index 9fbac6fa12..5f38936577 100644
--- a/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts
+++ b/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts
@@ -69,6 +69,30 @@
 			gpios = <&gpio 45 GPIO_ACTIVE_LOW>;
 		};
 	};
+
+	usb0_vbus: regulator-usb0-vbus {
+		compatible = "regulator-fixed";
+
+		regulator-name = "USB0_VBUS";
+
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+
+		gpio = <&gpio 50 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	usb1_vbus: regulator-usb1-vbus {
+		compatible = "regulator-fixed";
+
+		regulator-name = "USB1_VBUS";
+
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+
+		gpio = <&gpio 51 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
 };
 
 &gsw {
@@ -77,6 +101,26 @@
 	mtd-mac-address-increment = <(-2)>;
 };
 
+&gpio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&state_default>;
+
+	state_default: pinmux {
+		usb0_vbus {
+			lantiq,pins = "io50";
+			lantiq,pull = <0>;
+			lantiq,open-drain = <0>;
+			lantiq,output = <1>;
+		};
+		usb1_vbus {
+			lantiq,pins = "io51";
+			lantiq,pull = <0>;
+			lantiq,open-drain = <0>;
+			lantiq,output = <1>;
+		};
+	};
+};
+
 &localbus {
 	flash at 0 {
 		compatible = "lantiq,nor";
@@ -142,8 +186,10 @@
 
 &usb0 {
 	status = "okay";
+	vbus-supply = <&usb0_vbus>;
 };
 
 &usb1 {
 	status = "okay";
+	vbus-supply = <&usb1_vbus>;
 };