xref: /freebsd/sys/contrib/device-tree/Bindings/input/elan,ekth6915.yaml (revision 6580f5c38dd5b01aeeaed16b370f1a12423437f0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/elan,ekth6915.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Elan eKTH6915 touchscreen controller
8
9maintainers:
10  - Douglas Anderson <dianders@chromium.org>
11
12description:
13  Supports the Elan eKTH6915 touchscreen controller.
14  This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
15
16allOf:
17  - $ref: /schemas/input/touchscreen/touchscreen.yaml#
18
19properties:
20  compatible:
21    enum:
22      - elan,ekth6915
23      - ilitek,ili2901
24
25  reg:
26    const: 0x10
27
28  interrupts:
29    maxItems: 1
30
31  panel: true
32
33  reset-gpios:
34    description: Reset GPIO; not all touchscreens using eKTH6915 hook this up.
35
36  vcc33-supply:
37    description: The 3.3V supply to the touchscreen.
38
39  vccio-supply:
40    description:
41      The IO supply to the touchscreen. Need not be specified if this is the
42      same as the 3.3V supply.
43
44required:
45  - compatible
46  - reg
47  - interrupts
48  - vcc33-supply
49
50additionalProperties: false
51
52examples:
53  - |
54    #include <dt-bindings/gpio/gpio.h>
55    #include <dt-bindings/interrupt-controller/irq.h>
56
57    i2c {
58      #address-cells = <1>;
59      #size-cells = <0>;
60
61      ap_ts: touchscreen@10 {
62        compatible = "elan,ekth6915";
63        reg = <0x10>;
64
65        interrupt-parent = <&tlmm>;
66        interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
67
68        reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
69        vcc33-supply = <&pp3300_ts>;
70      };
71    };
72