Documentation/devicetree/bindings/usb/samsung,exynos-dwc3.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/samsung,exynos-dwc3.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung Exynos SoC USB 3.0 DWC3 Controller

maintainers:
  - Krzysztof Kozlowski <krzk@kernel.org>

properties:
  compatible:
    enum:
      - google,gs101-dwusb3
      - samsung,exynos5250-dwusb3
      - samsung,exynos5433-dwusb3
      - samsung,exynos7-dwusb3
      - samsung,exynos850-dwusb3

  '#address-cells':
    const: 1

  clocks:
    minItems: 1
    maxItems: 4

  clock-names:
    minItems: 1
    maxItems: 4

  ranges: true

  '#size-cells':
    const: 1

  vdd10-supply:
    description: 1.0V power supply

  vdd33-supply:
    description: 3.0V/3.3V power supply

patternProperties:
  "^usb@[0-9a-f]+$":
    $ref: snps,dwc3.yaml#
    description: Required child node

required:
  - compatible
  - '#address-cells'
  - clocks
  - clock-names
  - ranges
  - '#size-cells'
  - vdd10-supply
  - vdd33-supply

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: google,gs101-dwusb3
    then:
      properties:
        clocks:
          minItems: 4
          maxItems: 4
        clock-names:
          items:
            - const: bus_early
            - const: susp_clk
            - const: link_aclk
            - const: link_pclk

  - if:
      properties:
        compatible:
          contains:
            const: samsung,exynos5250-dwusb3
    then:
      properties:
        clocks:
          minItems: 1
          maxItems: 1
        clock-names:
          items:
            - const: usbdrd30

  - if:
      properties:
        compatible:
          contains:
            const: samsung,exynos5433-dwusb3
    then:
      properties:
        clocks:
          minItems: 4
          maxItems: 4
        clock-names:
          items:
            - const: aclk
            - const: susp_clk
            - const: phyclk
            - const: pipe_pclk

  - if:
      properties:
        compatible:
          contains:
            const: samsung,exynos7-dwusb3
    then:
      properties:
        clocks:
          minItems: 3
          maxItems: 3
        clock-names:
          items:
            - const: usbdrd30
            - const: usbdrd30_susp_clk
            - const: usbdrd30_axius_clk

  - if:
      properties:
        compatible:
          contains:
            const: samsung,exynos850-dwusb3
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 2
        clock-names:
          items:
            - const: bus_early
            - const: ref

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/exynos5420.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    usb@12000000 {
        compatible = "samsung,exynos5250-dwusb3";
        #address-cells = <1>;
        #size-cells = <1>;
        ranges = <0x0 0x12000000 0x10000>;
        clocks = <&clock CLK_USBD300>;
        clock-names = "usbdrd30";
        vdd33-supply = <&ldo9_reg>;
        vdd10-supply = <&ldo11_reg>;

        usb@0 {
            compatible = "snps,dwc3";
            reg = <0x0 0x10000>;
            interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
            phys = <&usbdrd_phy0 0>, <&usbdrd_phy0 1>;
            phy-names = "usb2-phy", "usb3-phy";
            snps,dis_u3_susphy_quirk;
        };
    };