Documentation/devicetree/bindings/sound/st,stm32-sai.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/st,stm32-sai.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/st,stm32-sai.yaml
Extension
.yaml
Size
5779 bytes
Lines
228
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.

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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/sound/st,stm32-sai.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: STMicroelectronics STM32 Serial Audio Interface (SAI)

maintainers:
  - Olivier Moysan <olivier.moysan@foss.st.com>

description:
  The SAI interface (Serial Audio Interface) offers a wide set of audio
  protocols as I2S standards, LSB or MSB-justified, PCM/DSP, TDM, and AC'97.
  The SAI contains two independent audio sub-blocks. Each sub-block has
  its own clock generator and I/O lines controller.

properties:
  compatible:
    enum:
      - st,stm32f4-sai
      - st,stm32h7-sai
      - st,stm32mp25-sai

  reg:
    items:
      - description: Base address and size of SAI common register set.
      - description: Base address and size of SAI identification register set.
    minItems: 1

  ranges:
    maxItems: 1

  interrupts:
    maxItems: 1

  resets:
    maxItems: 1

  "#address-cells":
    const: 1

  "#size-cells":
    const: 1

  clocks:
    minItems: 1
    maxItems: 3

  clock-names:
    minItems: 1
    maxItems: 3

  access-controllers:
    minItems: 1
    maxItems: 2

required:
  - compatible
  - reg
  - ranges
  - "#address-cells"
  - "#size-cells"
  - clocks
  - clock-names

patternProperties:
  "^audio-controller@[0-9a-f]+$":
    type: object
    additionalProperties: false

Annotation

Implementation Notes