Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml
Extension
.yaml
Size
1595 bytes
Lines
72
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/qcom,wsa881x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm WSA8810/WSA8815 Class-D Smart Speaker Amplifier

maintainers:
  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

description: |
  WSA8810 is a class-D smart speaker amplifier and WSA8815
  is a high-output power class-D smart speaker amplifier.
  Their primary operating mode uses a SoundWire digital audio
  interface. This binding is for SoundWire interface.

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

properties:
  compatible:
    const: sdw10217201000

  reg:
    maxItems: 1

  powerdown-gpios:
    description: GPIO spec for Powerdown/Shutdown line to use
    maxItems: 1

  '#thermal-sensor-cells':
    const: 0

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

required:
  - compatible
  - reg
  - powerdown-gpios
  - "#thermal-sensor-cells"
  - "#sound-dai-cells"

unevaluatedProperties: false

examples:
  - |
    soundwire@c2d0000 {
        #address-cells = <2>;
        #size-cells = <0>;
        reg = <0x0c2d0000 0x2000>;

        speaker@0,1 {
            compatible = "sdw10217201000";
            reg = <0 1>;
            powerdown-gpios = <&wcdpinctrl 2 0>;
            #thermal-sensor-cells = <0>;
            #sound-dai-cells = <0>;
        };

        speaker@0,2 {
            compatible = "sdw10217201000";
            reg = <0 2>;
            powerdown-gpios = <&wcdpinctrl 2 0>;
            #thermal-sensor-cells = <0>;
            #sound-dai-cells = <0>;
        };
    };

Annotation

Implementation Notes