Documentation/devicetree/bindings/phy/socionext,uniphier-usb2-phy.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/phy/socionext,uniphier-usb2-phy.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Socionext UniPhier USB2 PHY
   8
   9 description: |
  10   This describes the devicetree bindings for PHY interface built into
  11   USB2 controller implemented on Socionext UniPhier SoCs.
  12   Pro4 SoC has both USB2 and USB3 host controllers, however, this USB3
  13   controller doesn't include its own High-Speed PHY. This needs to specify
  14   USB2 PHY instead of USB3 HS-PHY.
  15
  16 maintainers:
  17   - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
  18
  19 properties:
  20   compatible:
  21     enum:
  22       - socionext,uniphier-pro4-usb2-phy
  23       - socionext,uniphier-ld11-usb2-phy
  24
  25   "#address-cells":
  26     const: 1
  27
  28   "#size-cells":
  29     const: 0
  30
  31 patternProperties:
  32   "^phy@[0-9]+$":
  33     type: object
  34     additionalProperties: false
  35
  36     properties:
  37       reg:
  38         minimum: 0
  39         maximum: 3
  40         description:
  41           The ID number for the PHY
  42
  43       "#phy-cells":
  44         const: 0
  45
  46       vbus-supply:
  47         description: A phandle to the regulator for USB VBUS, only for USB host
  48
  49     required:
  50       - reg
  51       - "#phy-cells"
  52
  53 required:
  54   - compatible
  55   - "#address-cells"
  56   - "#size-cells"
  57
  58 additionalProperties: false
  59
  60 examples:
  61   - |
  62     // The UniPhier usb2-phy should be a subnode of a "syscon" compatible node.
  63
  64     usb-hub {
  65         compatible = "socionext,uniphier-ld11-usb2-phy";
  66         #address-cells = <1>;
  67         #size-cells = <0>;
  68
  69         usb_phy0: phy@0 {
  70             reg = <0>;
  71             #phy-cells = <0>;
  72         };
  73
  74         usb_phy1: phy@1 {
  75             reg = <1>;
  76             #phy-cells = <0>;
  77         };
  78
  79         usb_phy2: phy@2 {
  80             reg = <2>;
  81             #phy-cells = <0>;
  82         };
  83     };