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

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/phy/socionext,uniphier-usb2-phy.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/phy/socionext,uniphier-usb2-phy.yaml
Extension
.yaml
Size
1809 bytes
Lines
84
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

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

title: Socionext UniPhier USB2 PHY

description: |
  This describes the devicetree bindings for PHY interface built into
  USB2 controller implemented on Socionext UniPhier SoCs.
  Pro4 SoC has both USB2 and USB3 host controllers, however, this USB3
  controller doesn't include its own High-Speed PHY. This needs to specify
  USB2 PHY instead of USB3 HS-PHY.

maintainers:
  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

properties:
  compatible:
    enum:
      - socionext,uniphier-pro4-usb2-phy
      - socionext,uniphier-ld11-usb2-phy

  "#address-cells":
    const: 1

  "#size-cells":
    const: 0

patternProperties:
  "^phy@[0-9]+$":
    type: object
    additionalProperties: false

    properties:
      reg:
        minimum: 0
        maximum: 3
        description:
          The ID number for the PHY

      "#phy-cells":
        const: 0

      vbus-supply:
        description: A phandle to the regulator for USB VBUS, only for USB host

    required:
      - reg
      - "#phy-cells"

required:
  - compatible
  - "#address-cells"
  - "#size-cells"

additionalProperties: false

examples:
  - |
    // The UniPhier usb2-phy should be a subnode of a "syscon" compatible node.

    usb-hub {
        compatible = "socionext,uniphier-ld11-usb2-phy";
        #address-cells = <1>;
        #size-cells = <0>;

        usb_phy0: phy@0 {
            reg = <0>;

Annotation

Implementation Notes