1USB NOP PHY
2
3Required properties:
4- compatible: should be usb-nop-xceiv
5- #phy-cells: Must be 0
6
7Optional properties:
8- clocks: phandle to the PHY clock. Use as per Documentation/devicetree
9  /bindings/clock/clock-bindings.txt
10  This property is required if clock-frequency is specified.
11
12- clock-names: Should be "main_clk"
13
14- clock-frequency: the clock frequency (in Hz) that the PHY clock must
15  be configured to.
16
17- vcc-supply: phandle to the regulator that provides power to the PHY.
18
19- reset-gpios: Should specify the GPIO for reset.
20
21- vbus-detect-gpio: should specify the GPIO detecting a VBus insertion
22                    (see Documentation/devicetree/bindings/gpio/gpio.txt)
23- vbus-regulator : should specifiy the regulator supplying current drawn from
24  the VBus line (see Documentation/devicetree/bindings/regulator/regulator.txt).
25
26Example:
27
28	hsusb1_phy {
29		compatible = "usb-nop-xceiv";
30		clock-frequency = <19200000>;
31		clocks = <&osc 0>;
32		clock-names = "main_clk";
33		vcc-supply = <&hsusb1_vcc_regulator>;
34		reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
35		vbus-detect-gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>;
36		vbus-regulator = <&vbus_regulator>;
37		#phy-cells = <0>;
38	};
39
40hsusb1_phy is a NOP USB PHY device that gets its clock from an oscillator
41and expects that clock to be configured to 19.2MHz by the NOP PHY driver.
42hsusb1_vcc_regulator provides power to the PHY and GPIO 7 controls RESET.
43GPIO 13 detects VBus insertion, and accordingly notifies the vbus-regulator.
44