Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
Extension
.yaml
Size
2033 bytes
Lines
88
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 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/mediatek,mt6779-keypad.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Mediatek's Keypad Controller

maintainers:
  - Mattijs Korpershoek <mkorpershoek@kernel.org>

allOf:
  - $ref: input.yaml#
  - $ref: /schemas/input/matrix-keymap.yaml#

description: |
  Mediatek's Keypad controller is used to interface a SoC with a matrix-type
  keypad device. The keypad controller supports multiple row and column lines.
  A key can be placed at each intersection of a unique row and a unique column.
  The keypad controller can sense a key-press and key-release and report the
  event using a interrupt to the cpu.

properties:
  compatible:
    oneOf:
      - const: mediatek,mt6779-keypad
      - items:
          - enum:
              - mediatek,mt6873-keypad
              - mediatek,mt8183-keypad
              - mediatek,mt8365-keypad
              - mediatek,mt8516-keypad
          - const: mediatek,mt6779-keypad

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: kpd

  wakeup-source:
    description: use any event on keypad as wakeup event
    type: boolean

  debounce-delay-ms:
    maximum: 256
    default: 16

  mediatek,keys-per-group:
    description: each (row, column) group has multiple keys
    $ref: /schemas/types.yaml#/definitions/uint32
    default: 1
    maximum: 2

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

unevaluatedProperties: false

Annotation

Implementation Notes