Adding fixed voltage regulators for Vbus and Vbus-boost required
by USB 3.0 DRD controller on Exynos7-espresso board.
Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx>
---
arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 43 +++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 5424cc4..2dedd5e 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -30,6 +30,28 @@
device_type = "memory";
reg = <0x0 0x40000000 0x0 0xC0000000>;
};
+
+ usb30_vbus_reg: regulator-usb30 {
+ compatible = "regulator-fixed";
+ regulator-name = "VBUS_5V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gph1 1 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb30_vbus_en>;
+ enable-active-high;
+ };
+
+ usb3drd_vboost_5v: regulator-usb3drd-vboost {
+ compatible = "regulator-fixed";
+ regulator-name = "VUSB_VBUS_5V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpf4 1 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb3drd_vboost_en>;
+ enable-active-high;
+ };
};
&fin_pll {
@@ -40,6 +62,22 @@
status = "okay";
};
+&pinctrl_bus1 {
+ usb30_vbus_en: usb30-vbus-en {
+ samsung,pins = "gph1-1";
+ samsung,pin-function = <1>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <0>;
+ };
+
+ usb3drd_vboost_en: usb3drd-vboost-en {
+ samsung,pins = "gpf4-1";
+ samsung,pin-function = <1>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <0>;
+ };
+};
+
&rtc {
status = "okay";
};
@@ -82,3 +120,8 @@
bus-width = <4>;
disable-wp;
};
+
+&usbdrd_phy {
+ vbus-supply = <&usb30_vbus_reg>;
+ vbus-boost-supply = <&usb3drd_vboost_5v>;
+};
--
1.7.10.4
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