| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/input/iqs62x-keys.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Azoteq IQS620A/621/622/624/625 Keys and Switches |
| 8 | |
| 9 | maintainers: |
| 10 | - Jeff LaBundy <jeff@labundy.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: input.yaml# |
| 14 | |
| 15 | description: | |
| 16 | The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors |
| 17 | feature a variety of self-capacitive, mutual-inductive and Hall-effect sens- |
| 18 | ing capabilities that can facilitate a variety of contactless key and switch |
| 19 | applications. |
| 20 | |
| 21 | These functions are collectively represented by a "keys" child node from the |
| 22 | parent MFD driver. See Documentation/devicetree/bindings/mfd/iqs62x.yaml for |
| 23 | further details and examples. Sensor hardware configuration (self-capacitive |
| 24 | vs. mutual-inductive, etc.) is selected based on the device's firmware. |
| 25 | |
| 26 | properties: |
| 27 | compatible: |
| 28 | enum: |
| 29 | - azoteq,iqs620a-keys |
| 30 | - azoteq,iqs621-keys |
| 31 | - azoteq,iqs622-keys |
| 32 | - azoteq,iqs624-keys |
| 33 | - azoteq,iqs625-keys |
| 34 | |
| 35 | linux,keycodes: |
| 36 | minItems: 1 |
| 37 | maxItems: 16 |
| 38 | description: | |
| 39 | Specifies the numeric keycodes associated with each available touch or |
| 40 | proximity event according to the following table. An 'x' indicates the |
| 41 | event is supported for a given device. Specify 0 for unused events. |
| 42 | |
| 43 | ------------------------------------------------------------------------- |
| 44 | | # | Event | IQS620A | IQS621 | IQS622 | IQS624 | IQS625 | |
| 45 | ------------------------------------------------------------------------- |
| 46 | | 0 | CH0 Touch | x | x | x | x | x | |
| 47 | | | Antenna 1 Touch* | x | | | | | |
| 48 | ------------------------------------------------------------------------- |
| 49 | | 1 | CH0 Proximity | x | x | x | x | x | |
| 50 | | | Antenna 1 Prox.* | x | | | | | |
| 51 | ------------------------------------------------------------------------- |
| 52 | | 2 | CH1 Touch | x | x | x | x | x | |
| 53 | | | Ant. 1 Deep Touch* | x | | | | | |
| 54 | ------------------------------------------------------------------------- |
| 55 | | 3 | CH1 Proximity | x | x | x | x | x | |
| 56 | ------------------------------------------------------------------------- |
| 57 | | 4 | CH2 Touch | x | | | | | |
| 58 | ------------------------------------------------------------------------- |
| 59 | | 5 | CH2 Proximity | x | | | | | |
| 60 | | | Antenna 2 Prox.* | x | | | | | |
| 61 | ------------------------------------------------------------------------- |
| 62 | | 6 | Metal (+) Touch** | x | x | | | | |
| 63 | | | Ant. 2 Deep Touch* | x | | | | | |
| 64 | ------------------------------------------------------------------------- |
| 65 | | 7 | Metal (+) Prox.** | x | x | | | | |
| 66 | | | Antenna 2 Touch* | x | | | | | |
| 67 | ------------------------------------------------------------------------- |
| 68 | | 8 | Metal (-) Touch** | x | x | | | | |
| 69 | ------------------------------------------------------------------------- |
| 70 | | 9 | Metal (-) Prox.** | x | x | | | | |
| 71 | ------------------------------------------------------------------------- |
| 72 | | 10 | SAR Active*** | x | | x | | | |
| 73 | ------------------------------------------------------------------------- |
| 74 | | 11 | SAR Quick Rel.*** | x | | x | | | |
| 75 | ------------------------------------------------------------------------- |
| 76 | | 12 | SAR Movement*** | x | | x | | | |
| 77 | ------------------------------------------------------------------------- |
| 78 | | 13 | SAR Filter Halt*** | x | | x | | | |
| 79 | ------------------------------------------------------------------------- |
| 80 | | 14 | Wheel Up | | | | x | | |
| 81 | ------------------------------------------------------------------------- |
| 82 | | 15 | Wheel Down | | | | x | | |
| 83 | ------------------------------------------------------------------------- |
| 84 | * Two-channel SAR. Replaces CH0-2 plus metal touch and proximity events |
| 85 | if enabled via firmware. |
| 86 | ** "+" and "-" refer to the polarity of a channel's delta (LTA - counts), |
| 87 | where "LTA" is defined as the channel's long-term average. |
| 88 | *** One-channel SAR. Replaces CH0-2 touch and proximity events if enabled |
| 89 | via firmware. |
| 90 | |
| 91 | patternProperties: |
| 92 | "^hall-switch-(north|south)$": |
| 93 | type: object |
| 94 | $ref: input.yaml# |
| 95 | description: |
| 96 | Represents north/south-field Hall-effect sensor touch or proximity |
| 97 | events. Note that north/south-field orientation is reversed on the |
| 98 | IQS620AXzCSR device due to its flip-chip package. |
| 99 | |
| 100 | properties: |
| 101 | linux,code: true |
| 102 | |
| 103 | azoteq,use-prox: |
| 104 | $ref: /schemas/types.yaml#/definitions/flag |
| 105 | description: |
| 106 | If present, specifies that Hall-effect sensor reporting should |
| 107 | use the device's wide-range proximity threshold instead of its |
| 108 | close-range touch threshold (default). |
| 109 | |
| 110 | required: |
| 111 | - linux,code |
| 112 | |
| 113 | additionalProperties: false |
| 114 | |
| 115 | if: |
| 116 | properties: |
| 117 | compatible: |
| 118 | contains: |
| 119 | enum: |
| 120 | - azoteq,iqs624-keys |
| 121 | - azoteq,iqs625-keys |
| 122 | then: |
| 123 | patternProperties: |
| 124 | "^hall-switch-(north|south)$": false |
| 125 | |
| 126 | required: |
| 127 | - compatible |
| 128 | - linux,keycodes |
| 129 | |
| 130 | additionalProperties: false |
| 131 | |
| 132 | ... |