1# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/elan,ekth3000.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Elantech I2C Touchpad
8
9maintainers:
10  - Dmitry Torokhov <dmitry.torokhov@gmail.com>
11
12allOf:
13  - $ref: touchscreen/touchscreen.yaml#
14
15properties:
16  compatible:
17    const: elan,ekth3000
18
19  reg:
20    maxItems: 1
21
22  interrupts:
23    maxItems: 1
24
25  wakeup-source:
26    type: boolean
27    description: touchpad can be used as a wakeup source
28
29  vcc-supply:
30    description: a phandle for the regulator supplying 3.3V power
31
32  elan,trackpoint:
33    type: boolean
34    description: touchpad can support a trackpoint
35
36  elan,clickpad:
37    type: boolean
38    description: touchpad is a clickpad (the entire surface is a button)
39
40  elan,middle-button:
41    type: boolean
42    description: touchpad has a physical middle button
43
44  elan,x_traces:
45    $ref: /schemas/types.yaml#/definitions/uint32
46    description: number of antennas on the x axis
47
48  elan,y_traces:
49    $ref: /schemas/types.yaml#/definitions/uint32
50    description: number of antennas on the y axis
51
52  touchscreen-size-x: true
53
54  touchscreen-size-y: true
55
56  touchscreen-x-mm: true
57
58  touchscreen-y-mm: true
59
60required:
61  - compatible
62  - reg
63  - interrupts
64
65additionalProperties: false
66
67examples:
68  - |
69    #include <dt-bindings/interrupt-controller/irq.h>
70    i2c {
71        #address-cells = <1>;
72        #size-cells = <0>;
73
74        touchpad@15 {
75            compatible = "elan,ekth3000";
76            reg = <0x15>;
77            interrupt-parent = <&gpio4>;
78            interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
79            wakeup-source;
80        };
81    };
82