| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/input/microchip,cap11xx.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Microchip CAP11xx based capacitive touch sensors |
| |
| description: | |
| The Microchip CAP1xxx Family of RightTouchTM multiple-channel capacitive |
| touch controllers and LED drivers. The device communication via I2C only. |
| |
| maintainers: |
| - Rob Herring <robh@kernel.org> |
| |
| properties: |
| compatible: |
| enum: |
| - microchip,cap1106 |
| - microchip,cap1126 |
| - microchip,cap1188 |
| - microchip,cap1203 |
| - microchip,cap1206 |
| - microchip,cap1293 |
| - microchip,cap1298 |
| |
| reg: |
| maxItems: 1 |
| |
| '#address-cells': |
| const: 1 |
| |
| '#size-cells': |
| const: 0 |
| |
| interrupts: |
| maxItems: 1 |
| description: | |
| Property describing the interrupt line the |
| device's ALERT#/CM_IRQ# pin is connected to. |
| The device only has one interrupt source. |
| |
| autorepeat: |
| description: | |
| Enables the Linux input system's autorepeat feature on the input device. |
| |
| linux,keycodes: |
| minItems: 6 |
| maxItems: 6 |
| description: | |
| Specifies an array of numeric keycode values to |
| be used for the channels. If this property is |
| omitted, KEY_A, KEY_B, etc are used as defaults. |
| The array must have exactly six entries. |
| |
| microchip,sensor-gain: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| default: 1 |
| enum: [1, 2, 4, 8] |
| description: | |
| Defines the gain of the sensor circuitry. This |
| effectively controls the sensitivity, as a |
| smaller delta capacitance is required to |
| generate the same delta count values. |
| |
| microchip,irq-active-high: |
| type: boolean |
| description: | |
| By default the interrupt pin is active low |
| open drain. This property allows using the active |
| high push-pull output. |
| |
| patternProperties: |
| "^led@[0-7]$": |
| type: object |
| description: CAP11xx LEDs |
| $ref: /schemas/leds/common.yaml# |
| |
| properties: |
| reg: |
| enum: [0, 1, 2, 3, 4, 5, 6, 7] |
| |
| label: true |
| |
| linux,default-trigger: true |
| |
| default-state: true |
| |
| required: |
| - reg |
| |
| additionalProperties: false |
| |
| allOf: |
| - $ref: input.yaml |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - microchip,cap1106 |
| then: |
| patternProperties: |
| "^led@[0-7]$": false |
| |
| required: |
| - compatible |
| - interrupts |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| touch@28 { |
| compatible = "microchip,cap1188"; |
| interrupt-parent = <&gpio1>; |
| interrupts = <0 0>; |
| reg = <0x28>; |
| autorepeat; |
| microchip,sensor-gain = <2>; |
| |
| linux,keycodes = <103>, /* KEY_UP */ |
| <106>, /* KEY_RIGHT */ |
| <108>, /* KEY_DOWN */ |
| <105>, /* KEY_LEFT */ |
| <109>, /* KEY_PAGEDOWN */ |
| <104>; /* KEY_PAGEUP */ |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| led@0 { |
| label = "cap11xx:green:usr0"; |
| reg = <0>; |
| }; |
| |
| led@1 { |
| label = "cap11xx:green:usr1"; |
| reg = <1>; |
| }; |
| |
| led@2 { |
| label = "cap11xx:green:alive"; |
| reg = <2>; |
| linux,default-trigger = "heartbeat"; |
| }; |
| }; |
| }; |