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.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
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
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.