Documentation/devicetree/bindings/sound/richtek,rt9120.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/richtek,rt9120.yaml
Extension
.yaml
Size
1366 bytes
Lines
63
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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Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/richtek,rt9120.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Richtek RT9120 Class-D audio amplifier

maintainers:
  - ChiYuan Huang <cy_huang@richtek.com>

description: |
  The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier
  delivering 2*20W into 8 Ohm BTL speaker loads. It supports the wide input
  voltage  range from 4.5V to 26.4V to meet the need on most common
  applications like as TV, monitors. home entertainment, electronic music
  equipment.

allOf:
  - $ref: dai-common.yaml#

properties:
  compatible:
    enum:
      - richtek,rt9120

  reg:
    description: I2C device address
    maxItems: 1

  pwdnn-gpios:
    description: GPIO used for power down, low active
    maxItems: 1

  dvdd-supply:
    description: |
      Supply for the default on DVDD power, voltage domain must be 3P3V or 1P8V

  '#sound-dai-cells':
    const: 0

required:
  - compatible
  - reg
  - dvdd-supply
  - '#sound-dai-cells'

unevaluatedProperties: false

examples:
  - |
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;
      rt9120@1a {
        compatible = "richtek,rt9120";
        reg = <0x1a>;
        pwdnn-gpios = <&gpio26 2 0>;
        dvdd-supply = <&vdd_io_reg>;
        #sound-dai-cells = <0>;
      };
    };

Annotation

Implementation Notes