Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
Extension
.yaml
Size
3615 bytes
Lines
166
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

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

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/fsl,imx8mq-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX8MQ USB3 PHY

maintainers:
  - Li Jun <jun.li@nxp.com>

properties:
  compatible:
    oneOf:
      - enum:
          - fsl,imx8mq-usb-phy
          - fsl,imx8mp-usb-phy
      - items:
          - const: fsl,imx95-usb-phy
          - const: fsl,imx8mp-usb-phy

  reg:
    minItems: 1
    maxItems: 2

  "#phy-cells":
    const: 0

  clocks:
    minItems: 1
    items:
      - description: PHY configuration clock
      - description: Alternate PHY reference clock

  clock-names:
    minItems: 1
    items:
      - const: phy
      - const: alt

  power-domains:
    maxItems: 1

  vbus-supply:
    description:
      A phandle to the regulator for USB VBUS.

  fsl,phy-tx-vref-tune-percent:
    description:
      Tunes the HS DC level relative to the nominal level
    minimum: 90
    maximum: 124

  fsl,phy-tx-rise-tune-percent:
    description:
      Adjusts the rise/fall time duration of the HS waveform relative to
      its nominal value
    minimum: 90
    maximum: 120

  fsl,phy-tx-preemp-amp-tune-microamp:
    description:
      Adjust amount of current sourced to DPn and DMn after a J-to-K
      or K-to-J transition. Default is 0 (disabled).
    minimum: 0
    maximum: 1800

  fsl,phy-tx-vboost-level-microvolt:
    description:
      Adjust the boosted transmit launch pk-pk differential amplitude

Annotation

Implementation Notes