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     required:
  47       - reg
  48       - "#phy-cells"
  49
  50 required:
  51   - compatible
  52   - "#address-cells"
  53   - "#size-cells"
  54
  55 additionalProperties: false
  56
  57 examples:
  58   - |
  59     // The UniPhier usb2-phy should be a subnode of a "syscon" compatible node.
  60
  61     soc-glue@5f800000 {
  62         compatible = "socionext,uniphier-ld11-soc-glue", "simple-mfd", "syscon";
  63         reg = <0x5f800000 0x2000>;
  64
  65         usb-controller {
  66             compatible = "socionext,uniphier-ld11-usb2-phy";
  67             #address-cells = <1>;
  68             #size-cells = <0>;
  69
  70             usb_phy0: phy@0 {
  71                 reg = <0>;
  72                 #phy-cells = <0>;
  73             };
  74
  75             usb_phy1: phy@1 {
  76                 reg = <1>;
  77                 #phy-cells = <0>;
  78             };
  79
  80             usb_phy2: phy@2 {
  81                 reg = <2>;
  82                 #phy-cells = <0>;
  83             };
  84         };
  85     };