Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml
Extension
.yaml
Size
1564 bytes
Lines
78
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/sound/nvidia,tegra20-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NVIDIA Tegra20 I2S Controller

description: |
  The I2S Controller streams synchronous serial audio data between system
  memory and an external audio device. The controller supports the I2S Left
  Justified Mode, Right Justified Mode, and DSP mode formats.

maintainers:
  - Thierry Reding <treding@nvidia.com>
  - Jon Hunter <jonathanh@nvidia.com>

properties:
  compatible:
    const: nvidia,tegra20-i2s

  reg:
    maxItems: 1

  resets:
    maxItems: 1

  reset-names:
    const: i2s

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1

  dmas:
    minItems: 2

  dma-names:
    items:
      - const: rx
      - const: tx

  nvidia,fixed-parent-rate:
    description: |
      Specifies whether board prefers parent clock to stay at a fixed rate.
      This allows multiple Tegra20 audio components work simultaneously by
      limiting number of supportable audio rates.
    type: boolean

required:
  - compatible
  - reg
  - resets
  - reset-names
  - interrupts
  - clocks
  - dmas
  - dma-names

additionalProperties: false

examples:
  - |
    i2s@70002800 {
        compatible = "nvidia,tegra20-i2s";
        reg = <0x70002800 0x200>;
        interrupts = <45>;
        clocks = <&tegra_car 11>;

Annotation

Implementation Notes