Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt

   1 Qualcomm's USB HS PHY
   2
   3 PROPERTIES
   4
   5 - compatible:
   6     Usage: required
   7     Value type: <string>
   8     Definition: Should contain "qcom,usb-hs-phy" and more specifically one of the
   9                 following:
  10
  11                         "qcom,usb-hs-phy-apq8064"
  12                         "qcom,usb-hs-phy-msm8916"
  13                         "qcom,usb-hs-phy-msm8974"
  14
  15 - #phy-cells:
  16     Usage: required
  17     Value type: <u32>
  18     Definition: Should contain 0
  19
  20 - clocks:
  21     Usage: required
  22     Value type: <prop-encoded-array>
  23     Definition: Should contain clock specifier for the reference and sleep
  24                 clocks
  25
  26 - clock-names:
  27     Usage: required
  28     Value type: <stringlist>
  29     Definition: Should contain "ref" and "sleep" for the reference and sleep
  30                 clocks respectively
  31
  32 - resets:
  33     Usage: required
  34     Value type: <prop-encoded-array>
  35     Definition: Should contain the phy and POR resets
  36
  37 - reset-names:
  38     Usage: required
  39     Value type: <stringlist>
  40     Definition: Should contain "phy" and "por" for the phy and POR resets
  41                 respectively
  42
  43 - v3p3-supply:
  44     Usage: required
  45     Value type: <phandle>
  46     Definition: Should contain a reference to the 3.3V supply
  47
  48 - v1p8-supply:
  49     Usage: required
  50     Value type: <phandle>
  51     Definition: Should contain a reference to the 1.8V supply
  52
  53 - extcon:
  54     Usage: optional
  55     Value type: <prop-encoded-array>
  56     Definition: Should contain the vbus extcon
  57
  58 - qcom,init-seq:
  59     Usage: optional
  60     Value type: <u8 array>
  61     Definition: Should contain a sequence of ULPI address and value pairs to
  62                 program into the ULPI_EXT_VENDOR_SPECIFIC area. This is related
  63                 to Device Mode Eye Diagram test. The addresses are offsets
  64                 from the ULPI_EXT_VENDOR_SPECIFIC address, for example,
  65                 <0x1 0x53> would mean "write the value 0x53 to address 0x81".
  66
  67 EXAMPLE
  68
  69 otg: usb-controller {
  70         ulpi {
  71                 phy {
  72                         compatible = "qcom,usb-hs-phy-msm8974", "qcom,usb-hs-phy";
  73                         #phy-cells = <0>;
  74                         clocks = <&xo_board>, <&gcc GCC_USB2A_PHY_SLEEP_CLK>;
  75                         clock-names = "ref", "sleep";
  76                         resets = <&gcc GCC_USB2A_PHY_BCR>, <&otg 0>;
  77                         reset-names = "phy", "por";
  78                         v3p3-supply = <&pm8941_l24>;
  79                         v1p8-supply = <&pm8941_l6>;
  80                         extcon = <&smbb>;
  81                         qcom,init-seq = /bits/ 8 <0x1 0x63>;
  82                 };
  83         };
  84 };