Documentation/devicetree/bindings/phy/rockchip-usb-phy.txt

   1 ROCKCHIP USB2 PHY
   2
   3 Required properties:
   4  - compatible: rockchip,rk3288-usb-phy
   5  - rockchip,grf : phandle to the syscon managing the "general
   6    register files"
   7  - #address-cells: should be 1
   8  - #size-cells: should be 0
   9
  10 Sub-nodes:
  11 Each PHY should be represented as a sub-node.
  12
  13 Sub-nodes
  14 required properties:
  15 - #phy-cells: should be 0
  16 - reg: PHY configure reg address offset in GRF
  17                 "0x320" - for PHY attach to OTG controller
  18                 "0x334" - for PHY attach to HOST0 controller
  19                 "0x348" - for PHY attach to HOST1 controller
  20
  21 Optional Properties:
  22 - clocks : phandle + clock specifier for the phy clocks
  23 - clock-names: string, clock name, must be "phyclk"
  24
  25 Example:
  26
  27 usbphy: phy {
  28         compatible = "rockchip,rk3288-usb-phy";
  29         rockchip,grf = <&grf>;
  30         #address-cells = <1>;
  31         #size-cells = <0>;
  32
  33         usbphy0: usb-phy0 {
  34                 #phy-cells = <0>;
  35                 reg = <0x320>;
  36         };
  37 };