xref: /linux/Documentation/devicetree/bindings/input/touchscreen/melfas,mms114.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/touchscreen/melfas,mms114.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Melfas MMS114 family touchscreen controller
8
9maintainers:
10  - Linus Walleij <linus.walleij@linaro.org>
11
12allOf:
13  - $ref: touchscreen.yaml#
14
15properties:
16  $nodename:
17    pattern: "^touchscreen(@.*)?$"
18
19  compatible:
20    oneOf:
21      - enum:
22          - melfas,mms114
23          - melfas,mms134s
24          - melfas,mms136
25          - melfas,mms152
26          - melfas,mms345l
27      - items:
28          - enum:
29              - melfas,mms252
30          - const: melfas,mms114
31
32  reg:
33    description: I2C address
34
35  clock-frequency:
36    description: I2C client clock frequency, defined for host
37    minimum: 100000
38    maximum: 400000
39
40  interrupts:
41    maxItems: 1
42
43  avdd-supply:
44    description: Analog power supply regulator on AVDD pin
45
46  vdd-supply:
47    description: Digital power supply regulator on VDD pin
48
49  touchscreen-size-x: true
50  touchscreen-size-y: true
51  touchscreen-fuzz-x: true
52  touchscreen-fuzz-y: true
53  touchscreen-fuzz-pressure: true
54  touchscreen-inverted-x: true
55  touchscreen-inverted-y: true
56  touchscreen-swapped-x-y: true
57  touchscreen-max-pressure: true
58
59  linux,keycodes:
60    description: Keycodes for the touch keys
61    minItems: 1
62    maxItems: 15
63
64additionalProperties: false
65
66required:
67  - compatible
68  - reg
69  - interrupts
70  - touchscreen-size-x
71  - touchscreen-size-y
72
73examples:
74  - |
75    #include <dt-bindings/interrupt-controller/irq.h>
76    i2c {
77      #address-cells = <1>;
78      #size-cells = <0>;
79      touchscreen@48 {
80        compatible = "melfas,mms114";
81        reg = <0x48>;
82        interrupt-parent = <&gpio>;
83        interrupts = <39 IRQ_TYPE_EDGE_FALLING>;
84        avdd-supply = <&ldo1_reg>;
85        vdd-supply = <&ldo2_reg>;
86        touchscreen-size-x = <720>;
87        touchscreen-size-y = <1280>;
88        touchscreen-fuzz-x = <10>;
89        touchscreen-fuzz-y = <10>;
90        touchscreen-fuzz-pressure = <10>;
91        touchscreen-inverted-x;
92        touchscreen-inverted-y;
93      };
94    };
95
96...
97