xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/renesas,usb2-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas R-Car generation 3 USB 2.0 PHY

maintainers:
  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

properties:
  compatible:
    oneOf:
      - items:
          - const: renesas,usb2-phy-r8a77470 # RZ/G1C

      - items:
          - enum:
              - renesas,usb2-phy-r7s9210  # RZ/A2
              - renesas,usb2-phy-r8a774a1 # RZ/G2M
              - renesas,usb2-phy-r8a774b1 # RZ/G2N
              - renesas,usb2-phy-r8a774c0 # RZ/G2E
              - renesas,usb2-phy-r8a774e1 # RZ/G2H
              - renesas,usb2-phy-r8a7795  # R-Car H3
              - renesas,usb2-phy-r8a7796  # R-Car M3-W
              - renesas,usb2-phy-r8a77961 # R-Car M3-W+
              - renesas,usb2-phy-r8a77965 # R-Car M3-N
              - renesas,usb2-phy-r8a77990 # R-Car E3
              - renesas,usb2-phy-r8a77995 # R-Car D3
          - const: renesas,rcar-gen3-usb2-phy

  reg:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    maxItems: 2
    items:
      - const: fck
      - const: usb_x1

  '#phy-cells':
    enum: [0, 1]  # and 0 is deprecated.
    description: |
      The phandle's argument in the PHY specifier is the INT_STATUS bit of
      controller.
      - 1 = USBH_INTA (OHCI)
      - 2 = USBH_INTB (EHCI)
      - 3 = UCOM_INT (OTG and BC)

  interrupts:
    maxItems: 1

  power-domains:
    maxItems: 1

  resets:
    minItems: 1
    maxItems: 2
    items:
      - description: reset of USB 2.0 host side
      - description: reset of USB 2.0 peripheral side

  vbus-supply:
    description: |
      Phandle to a regulator that provides power to the VBUS. This regulator
      will be managed during the PHY power on/off sequence.

  renesas,no-otg-pins:
    $ref: /schemas/types.yaml#/definitions/flag
    description: |
      specify when a board does not provide proper otg pins.

  dr_mode: true

if:
  properties:
    compatible:
      items:
        enum:
          - renesas,usb2-phy-r7s9210
then:
  required:
    - clock-names

required:
  - compatible
  - reg
  - clocks
  - '#phy-cells'

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/r8a7795-sysc.h>

    usb-phy@ee080200 {
        compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
        reg = <0xee080200 0x700>;
        interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&cpg CPG_MOD 703>;
        #phy-cells = <1>;
    };

    usb-phy@ee0a0200 {
        compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
        reg = <0xee0a0200 0x700>;
        clocks = <&cpg CPG_MOD 702>;
        #phy-cells = <1>;
    };