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 enum:
18 - elan,ektf3624
19 - elan,ekth3500
20
21 reg:
22 maxItems: 1
23
24 interrupts:
25 maxItems: 1
26
27 wakeup-source:
28 type: boolean
29 description: touchscreen can be used as a wakeup source.
30
31 reset-gpios:
32 maxItems: 1
33 description: reset gpio the chip is connected to.
34
35 vcc33-supply:
36 description: a phandle for the regulator supplying 3.3V power.
37
38 vccio-supply:
39 description: a phandle for the regulator supplying IO power.
40
41 touchscreen-inverted-x: true
42 touchscreen-inverted-y: true
43 touchscreen-size-x: true
44 touchscreen-size-y: true
45 touchscreen-swapped-x-y: true
46
47 additionalProperties: false
48
49 required:
50 - compatible
51 - reg
52 - interrupts
53
54 examples:
55 - |
56 #include <dt-bindings/interrupt-controller/irq.h>
57
58 i2c {
59 #address-cells = <1>;
60 #size-cells = <0>;
61
62 touchscreen@10 {
63 compatible = "elan,ekth3500";
64 reg = <0x10>;
65
66 interrupt-parent = <&gpio4>;
67 interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
68 wakeup-source;
69 };
70 };
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