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-rw-r--r--dts/Bindings/usb/usb-nop-xceiv.txt10
1 files changed, 9 insertions, 1 deletions
diff --git a/dts/Bindings/usb/usb-nop-xceiv.txt b/dts/Bindings/usb/usb-nop-xceiv.txt
index 1bd37faba0..5be01c859b 100644
--- a/dts/Bindings/usb/usb-nop-xceiv.txt
+++ b/dts/Bindings/usb/usb-nop-xceiv.txt
@@ -13,10 +13,15 @@ Optional properties:
- clock-frequency: the clock frequency (in Hz) that the PHY clock must
be configured to.
-- vcc-supply: phandle to the regulator that provides RESET to the PHY.
+- vcc-supply: phandle to the regulator that provides power to the PHY.
- reset-gpios: Should specify the GPIO for reset.
+- vbus-detect-gpio: should specify the GPIO detecting a VBus insertion
+ (see Documentation/devicetree/bindings/gpio/gpio.txt)
+- vbus-regulator : should specifiy the regulator supplying current drawn from
+ the VBus line (see Documentation/devicetree/bindings/regulator/regulator.txt).
+
Example:
hsusb1_phy {
@@ -26,8 +31,11 @@ Example:
clock-names = "main_clk";
vcc-supply = <&hsusb1_vcc_regulator>;
reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ vbus-detect-gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>;
+ vbus-regulator = <&vbus_regulator>;
};
hsusb1_phy is a NOP USB PHY device that gets its clock from an oscillator
and expects that clock to be configured to 19.2MHz by the NOP PHY driver.
hsusb1_vcc_regulator provides power to the PHY and GPIO 7 controls RESET.
+GPIO 13 detects VBus insertion, and accordingly notifies the vbus-regulator.