xref: /linux/Documentation/devicetree/bindings/input/touchscreen/mstar,msg2638.yaml (revision 8a922b7728a93d837954315c98b84f6b78de0c4f) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/touchscreen/mstar,msg2638.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MStar msg2638 touchscreen controller
8
9maintainers:
10  - Vincent Knecht <vincent.knecht@mailoo.org>
11
12allOf:
13  - $ref: touchscreen.yaml#
14
15properties:
16  compatible:
17    enum:
18      - mstar,msg2138
19      - mstar,msg2638
20
21  reg:
22    const: 0x26
23
24  interrupts:
25    maxItems: 1
26
27  reset-gpios:
28    maxItems: 1
29
30  vdd-supply:
31    description: Power supply regulator for the chip
32
33  vddio-supply:
34    description: Power supply regulator for the I2C bus
35
36  touchscreen-size-x: true
37  touchscreen-size-y: true
38
39  linux,keycodes:
40    minItems: 1
41    maxItems: 4
42
43additionalProperties: false
44
45required:
46  - compatible
47  - reg
48  - interrupts
49  - reset-gpios
50  - touchscreen-size-x
51  - touchscreen-size-y
52
53examples:
54  - |
55    #include <dt-bindings/gpio/gpio.h>
56    #include <dt-bindings/interrupt-controller/irq.h>
57    i2c {
58      #address-cells = <1>;
59      #size-cells = <0>;
60      touchscreen@26 {
61        compatible = "mstar,msg2638";
62        reg = <0x26>;
63        interrupt-parent = <&msmgpio>;
64        interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
65        reset-gpios = <&msmgpio 100 GPIO_ACTIVE_LOW>;
66        pinctrl-names = "default";
67        pinctrl-0 = <&ts_int_reset_default>;
68        vdd-supply = <&pm8916_l17>;
69        vddio-supply = <&pm8916_l5>;
70        touchscreen-size-x = <2048>;
71        touchscreen-size-y = <2048>;
72      };
73    };
74
75...
76