1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/input/touchscreen/elan,elants_i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Elantech I2C Touchscreen
8
9 maintainers:
10 - David Heidelberg <david@ixit.cz>
11
12 allOf:
13 - $ref: touchscreen.yaml#
14
15 properties:
16 compatible:
17 oneOf:
18 - enum:
19 - elan,ektf3624
20 - elan,ekth3500
21 - items:
22 - const: elan,ekth3915
23 - const: elan,ekth3500
24
25 reg:
26 maxItems: 1
27
28 interrupts:
29 maxItems: 1
30
31 wakeup-source:
32 type: boolean
33 description: touchscreen can be used as a wakeup source.
34
35 reset-gpios:
36 maxItems: 1
37 description: reset gpio the chip is connected to.
38
39 vcc33-supply:
40 description: a phandle for the regulator supplying 3.3V power.
41
42 vccio-supply:
43 description: a phandle for the regulator supplying IO power.
44
45 touchscreen-inverted-x: true
46 touchscreen-inverted-y: true
47 touchscreen-size-x: true
48 touchscreen-size-y: true
49 touchscreen-swapped-x-y: true
50
51 additionalProperties: false
52
53 required:
54 - compatible
55 - reg
56 - interrupts
57
58 examples:
59 - |
60 #include <dt-bindings/interrupt-controller/irq.h>
61
62 i2c {
63 #address-cells = <1>;
64 #size-cells = <0>;
65
66 touchscreen@10 {
67 compatible = "elan,ekth3500";
68 reg = <0x10>;
69
70 interrupt-parent = <&gpio4>;
71 interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
72 wakeup-source;
73 };
74 };
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