ARM: Dove: add fixed regulator for CuBox USB power
CuBox needs to enable USB power on a gpio pin. Add a fixed regulator
to always enable usb power on boot.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index bed5b62..7e3065a 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -26,6 +26,24 @@
linux,default-trigger = "default-on";
};
};
+
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb_power: regulator@1 {
+ compatible = "regulator-fixed";
+ reg = <1>;
+ regulator-name = "USB Power";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ regulator-always-on;
+ regulator-boot-on;
+ gpio = <&gpio0 1 0>;
+ };
+ };
};
&uart0 { status = "okay"; };
@@ -50,9 +68,14 @@
};
&pinctrl {
- pinctrl-0 = <&pmx_gpio_12>;
+ pinctrl-0 = <&pmx_gpio_1 &pmx_gpio_12>;
pinctrl-names = "default";
+ pmx_gpio_1: pmx-gpio-1 {
+ marvell,pins = "mpp1";
+ marvell,function = "gpio";
+ };
+
pmx_gpio_12: pmx-gpio-12 {
marvell,pins = "mpp12";
marvell,function = "gpio";
diff --git a/arch/arm/mach-dove/Kconfig b/arch/arm/mach-dove/Kconfig
index aedd0ba..36469d8 100644
--- a/arch/arm/mach-dove/Kconfig
+++ b/arch/arm/mach-dove/Kconfig
@@ -24,6 +24,8 @@
bool "Marvell Dove Flattened Device Tree"
select MVEBU_CLK_CORE
select MVEBU_CLK_GATING
+ select REGULATOR
+ select REGULATOR_FIXED_VOLTAGE
select USE_OF
help
Say 'Y' here if you want your kernel to support the