Documentation/devicetree/bindings/sound/wlf,wm8940.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/wlf,wm8940.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/wlf,wm8940.yaml
Extension
.yaml
Size
1008 bytes
Lines
61
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/sound/wlf,wm8940.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Wolfson WM8940 Codec

maintainers:
  - patches@opensource.cirrus.com

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

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

  compatible:
    const: wlf,wm8940

  reg:
    maxItems: 1

  spi-max-frequency:
    maximum: 526000

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

unevaluatedProperties: false

examples:
  - |
    spi {
        #address-cells = <1>;
        #size-cells = <0>;

        codec@0 {
            #sound-dai-cells = <0>;
            compatible = "wlf,wm8940";
            reg = <0>;
            spi-max-frequency = <500000>;
        };
    };
  - |
    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        codec@1a {
            #sound-dai-cells = <0>;
            compatible = "wlf,wm8940";
            reg = <0x1a>;
        };
    };

...

Annotation

Implementation Notes