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| author |   Robert Jarzmik <robert.jarzmik@free.fr> | 2014-12-06 22:05:14 +0100 |
|---|---|---|
| committer |   Felipe Balbi <balbi@ti.com> | 2015-01-12 12:13:29 -0600 |
| commit | 7bdea87a871f217a8a463f9203e6d0c702b7fda9 (patch) | |
| tree | d2d1b1661c3e48221007c7a21b12c022559a1c5f /Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt | |
| parent | usb: phy: generic: migrate to gpio_desc (diff) | |
| download | linux-dev-7bdea87a871f217a8a463f9203e6d0c702b7fda9.tar.xz linux-dev-7bdea87a871f217a8a463f9203e6d0c702b7fda9.zip | |
usb: phy: nop: device tree documentation for vbus
Enhance the phy documentation by adding 2 new optional bindings :
- the vbus gpio, which detects usb insertion
- the vbus regulator, which provides current drawn from the usb cable
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt index 8db5b33d6fdc..5be01c859b7a 100644 --- a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt +++ b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt @@ -17,6 +17,11 @@ Optional properties: - 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. |