tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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:
35 maxItems: 1
36
37 linux,keycodes:
38 minItems: 1
39 maxItems: 12
40
41 wakeup-source:
42 description: Use any event on keypad as wakeup event.
43 type: boolean
44
45required:
46 - compatible
47 - reg
48 - vdd-supply
49 - linux,keycodes
50
51unevaluatedProperties: false
52
53examples:
54 - |
55 // Example with interrupts
56 #include "dt-bindings/input/input.h"
57 i2c {
58 #address-cells = <1>;
59 #size-cells = <0>;
60
61 mpr121@5a {
62 compatible = "fsl,mpr121-touchkey";
63 reg = <0x5a>;
64 interrupt-parent = <&gpio1>;
65 interrupts = <28 2>;
66 autorepeat;
67 vdd-supply = <&ldo4_reg>;
68 linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>,
69 <KEY_4>, <KEY_5>, <KEY_6>, <KEY_7>,
70 <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>;
71 };
72 };
73
74 - |
75 // Example with polling
76 #include "dt-bindings/input/input.h"
77 i2c {
78 #address-cells = <1>;
79 #size-cells = <0>;
80
81 mpr121@5a {
82 compatible = "fsl,mpr121-touchkey";
83 reg = <0x5a>;
84 poll-interval = <20>;
85 autorepeat;
86 vdd-supply = <&ldo4_reg>;
87 linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>,
88 <KEY_4>, <KEY_5>, <KEY_6>, <KEY_7>,
89 <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>;
90 };
91 };