Documentation/devicetree/bindings/input/iqs626a.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/input/iqs626a.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/input/iqs626a.yaml
Extension
.yaml
Size
28154 bytes
Lines
879
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/iqs626a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Azoteq IQS626A Capacitive Touch Controller

maintainers:
  - Jeff LaBundy <jeff@labundy.com>

description: |
  The Azoteq IQS626A is a 14-channel capacitive touch controller that features
  additional Hall-effect and inductive sensing capabilities.

  Link to datasheet: https://www.azoteq.com/

allOf:
  - $ref: touchscreen/touchscreen.yaml#

properties:
  compatible:
    const: azoteq,iqs626a

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  "#address-cells":
    const: 1

  "#size-cells":
    const: 0

  azoteq,suspend-mode:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [0, 1, 2, 3]
    default: 0
    description: |
      Specifies the power mode during suspend as follows:
      0: Automatic (same as normal runtime, i.e. suspend/resume disabled)
      1: Low power (all sensing at a reduced reporting rate)
      2: Ultra-low power (ULP channel proximity sensing)
      3: Halt (no sensing)

  azoteq,clk-div:
    type: boolean
    description: Divides the device's core clock by a factor of 4.

  azoteq,ulp-enable:
    type: boolean
    description:
      Permits the device to automatically enter ultra-low-power mode from low-
      power mode.

  azoteq,ulp-update:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [0, 1, 2, 3, 4, 5, 6, 7]
    default: 3
    description: |
      Specifies the rate at which the trackpad, generic and Hall channels are
      updated during ultra-low-power mode as follows:
      0: 8
      1: 13
      2: 28
      3: 54
      4: 89
      5: 135

Annotation

Implementation Notes