Documentation/devicetree/bindings/phy/st,stm32mp25-combophy.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/phy/st,stm32mp25-combophy.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/phy/st,stm32mp25-combophy.yaml
Extension
.yaml
Size
3123 bytes
Lines
120
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 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/st,stm32mp25-combophy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: STMicroelectronics STM32MP25 USB3/PCIe COMBOPHY

maintainers:
  - Christian Bruel <christian.bruel@foss.st.com>

description:
  Single lane PHY shared (exclusive) between the USB3 and PCIe controllers.
  Supports 5Gbit/s for USB3 and PCIe gen2 or 2.5Gbit/s for PCIe gen1.

properties:
  compatible:
    const: st,stm32mp25-combophy

  reg:
    maxItems: 1

  "#phy-cells":
    const: 1

  clocks:
    minItems: 2
    items:
      - description: apb Bus clock mandatory to access registers.
      - description: ker Internal RCC reference clock for USB3 or PCIe
      - description: pad Optional on board clock input for PCIe only. Typically an
                     external 100Mhz oscillator wired on dedicated CLKIN pad. Used as reference
                     clock input instead of the ker

  clock-names:
    minItems: 2
    items:
      - const: apb
      - const: ker
      - const: pad

  resets:
    maxItems: 1

  reset-names:
    const: phy

  power-domains:
    maxItems: 1

  wakeup-source: true

  interrupts:
    maxItems: 1
    description: interrupt used for wakeup

  access-controllers:
    maxItems: 1
    description: Phandle to the rifsc device to check access right.

  st,ssc-on:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      A property whose presence indicates that the Spread Spectrum Clocking is active.

  st,rx-equalizer:
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0
    maximum: 7
    default: 2

Annotation

Implementation Notes