| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/input/iqs62x-keys.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Azoteq IQS620A/621/622/624/625 Keys and Switches |
| |
| maintainers: |
| - Jeff LaBundy <jeff@labundy.com> |
| |
| description: | |
| The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors |
| feature a variety of self-capacitive, mutual-inductive and Hall-effect sens- |
| ing capabilities that can facilitate a variety of contactless key and switch |
| applications. |
| |
| These functions are collectively represented by a "keys" child node from the |
| parent MFD driver. See Documentation/devicetree/bindings/mfd/iqs62x.yaml for |
| further details and examples. Sensor hardware configuration (self-capacitive |
| vs. mutual-inductive, etc.) is selected based on the device's firmware. |
| |
| properties: |
| compatible: |
| enum: |
| - azoteq,iqs620a-keys |
| - azoteq,iqs621-keys |
| - azoteq,iqs622-keys |
| - azoteq,iqs624-keys |
| - azoteq,iqs625-keys |
| |
| linux,keycodes: |
| $ref: /schemas/types.yaml#/definitions/uint32-array |
| minItems: 1 |
| maxItems: 16 |
| description: | |
| Specifies the numeric keycodes associated with each available touch or |
| proximity event according to the following table. An 'x' indicates the |
| event is supported for a given device. Specify 0 for unused events. |
| |
| ------------------------------------------------------------------------- |
| | # | Event | IQS620A | IQS621 | IQS622 | IQS624 | IQS625 | |
| ------------------------------------------------------------------------- |
| | 0 | CH0 Touch | x | x | x | x | x | |
| | | Antenna 1 Touch* | x | | | | | |
| ------------------------------------------------------------------------- |
| | 1 | CH0 Proximity | x | x | x | x | x | |
| | | Antenna 1 Prox.* | x | | | | | |
| ------------------------------------------------------------------------- |
| | 2 | CH1 Touch | x | x | x | x | x | |
| | | Ant. 1 Deep Touch* | x | | | | | |
| ------------------------------------------------------------------------- |
| | 3 | CH1 Proximity | x | x | x | x | x | |
| ------------------------------------------------------------------------- |
| | 4 | CH2 Touch | x | | | | | |
| ------------------------------------------------------------------------- |
| | 5 | CH2 Proximity | x | | | | | |
| | | Antenna 2 Prox.* | x | | | | | |
| ------------------------------------------------------------------------- |
| | 6 | Metal (+) Touch** | x | x | | | | |
| | | Ant. 2 Deep Touch* | x | | | | | |
| ------------------------------------------------------------------------- |
| | 7 | Metal (+) Prox.** | x | x | | | | |
| | | Antenna 2 Touch* | x | | | | | |
| ------------------------------------------------------------------------- |
| | 8 | Metal (-) Touch** | x | x | | | | |
| ------------------------------------------------------------------------- |
| | 9 | Metal (-) Prox.** | x | x | | | | |
| ------------------------------------------------------------------------- |
| | 10 | SAR Active*** | x | | x | | | |
| ------------------------------------------------------------------------- |
| | 11 | SAR Quick Rel.*** | x | | x | | | |
| ------------------------------------------------------------------------- |
| | 12 | SAR Movement*** | x | | x | | | |
| ------------------------------------------------------------------------- |
| | 13 | SAR Filter Halt*** | x | | x | | | |
| ------------------------------------------------------------------------- |
| | 14 | Wheel Up | | | | x | | |
| ------------------------------------------------------------------------- |
| | 15 | Wheel Down | | | | x | | |
| ------------------------------------------------------------------------- |
| * Two-channel SAR. Replaces CH0-2 plus metal touch and proximity events |
| if enabled via firmware. |
| ** "+" and "-" refer to the polarity of a channel's delta (LTA - counts), |
| where "LTA" is defined as the channel's long-term average. |
| *** One-channel SAR. Replaces CH0-2 touch and proximity events if enabled |
| via firmware. |
| |
| patternProperties: |
| "^hall-switch-(north|south)$": |
| type: object |
| description: |
| Represents north/south-field Hall-effect sensor touch or proximity |
| events. Note that north/south-field orientation is reversed on the |
| IQS620AXzCSR device due to its flip-chip package. |
| |
| properties: |
| linux,code: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| description: Numeric switch code associated with the event. |
| |
| azoteq,use-prox: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| If present, specifies that Hall-effect sensor reporting should |
| use the device's wide-range proximity threshold instead of its |
| close-range touch threshold (default). |
| |
| required: |
| - linux,code |
| |
| additionalProperties: false |
| |
| if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - azoteq,iqs624-keys |
| - azoteq,iqs625-keys |
| then: |
| patternProperties: |
| "^hall-switch-(north|south)$": false |
| |
| required: |
| - compatible |
| - linux,keycodes |
| |
| additionalProperties: false |
| |
| ... |
