fsl,mpr121-touchkey.yaml (2153B)
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 7title: Freescale MPR121 capacitive touch sensor controller 8 9maintainers: 10 - Dmitry Torokhov <dmitry.torokhov@gmail.com> 11 12description: | 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 17allOf: 18 - $ref: input.yaml# 19 20anyOf: 21 - required: [ interrupts ] 22 - required: [ poll-interval ] 23 24properties: 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 44required: 45 - compatible 46 - reg 47 - vdd-supply 48 - linux,keycodes 49 50unevaluatedProperties: false 51 52examples: 53 - | 54 // Example with interrupts 55 #include "dt-bindings/input/input.h" 56 i2c { 57 #address-cells = <1>; 58 #size-cells = <0>; 59 60 mpr121@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 mpr121@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 };