| 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/fsl,mpr121-touchkey.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Freescale MPR121 capacitive touch sensor controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Dmitry Torokhov <dmitry.torokhov@gmail.com> |
| 11 | |
| 12 | description: | |
| 13 | The MPR121 supports up to 12 completely independent electrodes/capacitance |
| 14 | sensing inputs in which 8 are multifunctional for LED driving and GPIO. |
| 15 | https://www.nxp.com/docs/en/data-sheet/MPR121.pdf |
| 16 | |
| 17 | allOf: |
| 18 | - $ref: input.yaml# |
| 19 | |
| 20 | anyOf: |
| 21 | - required: [ interrupts ] |
| 22 | - required: [ poll-interval ] |
| 23 | |
| 24 | properties: |
| 25 | compatible: |
| 26 | const: fsl,mpr121-touchkey |
| 27 | |
| 28 | reg: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | interrupts: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | vdd-supply: true |
| 35 | |
| 36 | linux,keycodes: |
| 37 | minItems: 1 |
| 38 | maxItems: 12 |
| 39 | |
| 40 | wakeup-source: |
| 41 | description: Use any event on keypad as wakeup event. |
| 42 | type: boolean |
| 43 | |
| 44 | required: |
| 45 | - compatible |
| 46 | - reg |
| 47 | - vdd-supply |
| 48 | - linux,keycodes |
| 49 | |
| 50 | unevaluatedProperties: false |
| 51 | |
| 52 | examples: |
| 53 | - | |
| 54 | // Example with interrupts |
| 55 | #include "dt-bindings/input/input.h" |
| 56 | i2c { |
| 57 | #address-cells = <1>; |
| 58 | #size-cells = <0>; |
| 59 | |
| 60 | touchkey@5a { |
| 61 | compatible = "fsl,mpr121-touchkey"; |
| 62 | reg = <0x5a>; |
| 63 | interrupt-parent = <&gpio1>; |
| 64 | interrupts = <28 2>; |
| 65 | autorepeat; |
| 66 | vdd-supply = <&ldo4_reg>; |
| 67 | linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>, |
| 68 | <KEY_4>, <KEY_5>, <KEY_6>, <KEY_7>, |
| 69 | <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>; |
| 70 | }; |
| 71 | }; |
| 72 | |
| 73 | - | |
| 74 | // Example with polling |
| 75 | #include "dt-bindings/input/input.h" |
| 76 | i2c { |
| 77 | #address-cells = <1>; |
| 78 | #size-cells = <0>; |
| 79 | |
| 80 | touchkey@5a { |
| 81 | compatible = "fsl,mpr121-touchkey"; |
| 82 | reg = <0x5a>; |
| 83 | poll-interval = <20>; |
| 84 | autorepeat; |
| 85 | vdd-supply = <&ldo4_reg>; |
| 86 | linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>, |
| 87 | <KEY_4>, <KEY_5>, <KEY_6>, <KEY_7>, |
| 88 | <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>; |
| 89 | }; |
| 90 | }; |