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- USB NOP PHY
- Required properties:
- - compatible: should be usb-nop-xceiv
- - #phy-cells: Must be 0
- Optional properties:
- - clocks: phandle to the PHY clock. Use as per Documentation/devicetree
- /bindings/clock/clock-bindings.txt
- This property is required if clock-frequency is specified.
- - clock-names: Should be "main_clk"
- - clock-frequency: the clock frequency (in Hz) that the PHY clock must
- be configured to.
- - 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 {
- compatible = "usb-nop-xceiv";
- clock-frequency = <19200000>;
- clocks = <&osc 0>;
- 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>;
- #phy-cells = <0>;
- };
- 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.
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