Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt

   1 Qualcomm DWC3 HS AND SS PHY CONTROLLER
   2 --------------------------------------
   3
   4 DWC3 PHY nodes are defined to describe on-chip Synopsis Physical layer
   5 controllers.  Each DWC3 PHY controller should have its own node.
   6
   7 Required properties:
   8 - compatible: should contain one of the following:
   9         - "qcom,dwc3-hs-usb-phy" for High Speed Synopsis PHY controller
  10         - "qcom,dwc3-ss-usb-phy" for Super Speed Synopsis PHY controller
  11 - reg: offset and length of the DWC3 PHY controller register set
  12 - #phy-cells: must be zero
  13 - clocks: a list of phandles and clock-specifier pairs, one for each entry in
  14   clock-names.
  15 - clock-names: Should contain "ref" for the PHY reference clock
  16
  17 Optional clocks:
  18   "xo"          External reference clock
  19
  20 Example:
  21                 phy@100f8800 {
  22                         compatible = "qcom,dwc3-hs-usb-phy";
  23                         reg = <0x100f8800 0x30>;
  24                         clocks = <&gcc USB30_0_UTMI_CLK>;
  25                         clock-names = "ref";
  26                         #phy-cells = <0>;
  27
  28                         status = "ok";
  29                 };
  30
  31                 phy@100f8830 {
  32                         compatible = "qcom,dwc3-ss-usb-phy";
  33                         reg = <0x100f8830 0x30>;
  34                         clocks = <&gcc USB30_0_MASTER_CLK>;
  35                         clock-names = "ref";
  36                         #phy-cells = <0>;
  37
  38                         status = "ok";
  39                 };