Documentation: bindings: add otg-vbus-gpios property for Rockchip USB2PHY

Add otg-vbus-gpios optional property to assigned a gpio to
control vbus of otg port.

Change-Id: I257a53edc4d62543f8ac9c7591c29e7231227c20
Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
index e3ec8bd5e5924b3a4e9605e24944e8bd86eb0b46..3a16dee132cce42825766286a2c63af5d51dc06f 100644 (file)
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
@@ -18,6 +18,7 @@ Optional properties:
                 Refer to clk/clock-bindings.txt for generic clock
                 consumer properties.
  - rockchip,u2phy-tuning; when set, tuning u2phy to improve usb2 SI.
+ - otg-vbus-gpios : assign the gpio to control vbus of otg port.
 
 Required nodes : a sub-node is required for each port the phy provides.
                 The sub-node name is used to identify host or otg port,