Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
Extension: .yaml
Size: 2401 bytes
Lines: 121
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
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A10 LRADC

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <mripard@kernel.org>

properties:
  compatible:
    oneOf:
      - const: allwinner,sun4i-a10-lradc-keys
      - const: allwinner,sun8i-a83t-r-lradc
      - items:
          - enum:
              - allwinner,suniv-f1c100s-lradc
              - allwinner,sun50i-a64-lradc
          - const: allwinner,sun8i-a83t-r-lradc
      - const: allwinner,sun50i-r329-lradc
      - items:
          - enum:
              - allwinner,sun50i-h616-lradc
              - allwinner,sun20i-d1-lradc
          - const: allwinner,sun50i-r329-lradc

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  interrupts:
    maxItems: 1

  vref-supply:
    description:
      Regulator for the LRADC reference voltage

  wakeup-source: true

patternProperties:
  "^button-[0-9]+$":
    type: object
    $ref: input.yaml#
    properties:
      label:
        description: Descriptive name of the key

      linux,code: true

      channel:
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [0, 1]
        description: ADC Channel this key is attached to

      voltage:
        $ref: /schemas/types.yaml#/definitions/uint32
        description:
          Voltage in microvolts at LRADC input when this key is
          pressed

    required:
      - label

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.