xref: /linux/Documentation/devicetree/bindings/input/adi,adp5588.yaml (revision ae22a94997b8a03dcb3c922857c203246711f9d4) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/adi,adp5588.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Analog Devices ADP5588 Keypad Controller
8
9maintainers:
10  - Nuno Sá <nuno.sa@analog.com>
11
12description: |
13  Analog Devices Mobile I/O Expander and QWERTY Keypad Controller
14  https://www.analog.com/media/en/technical-documentation/data-sheets/ADP5588.pdf
15
16allOf:
17  - $ref: matrix-keymap.yaml#
18  - $ref: input.yaml#
19
20properties:
21  compatible:
22    enum:
23      - adi,adp5587
24      - adi,adp5588
25
26  reg:
27    maxItems: 1
28
29  vcc-supply:
30    description: Supply Voltage Input
31
32  reset-gpios:
33    description:
34      If specified, it will be asserted during driver probe. As the line is
35      active low, it should be marked GPIO_ACTIVE_LOW.
36    maxItems: 1
37
38  interrupts:
39    maxItems: 1
40
41  gpio-controller:
42    description:
43      This property applies if either keypad,num-rows lower than 8 or
44      keypad,num-columns lower than 10.
45
46  '#gpio-cells':
47    const: 2
48
49  interrupt-controller:
50    description:
51      This property applies if either keypad,num-rows lower than 8 or
52      keypad,num-columns lower than 10.
53
54  '#interrupt-cells':
55    const: 2
56
57  adi,unlock-keys:
58    description:
59      Specifies a maximum of 2 keys that can be used to unlock the keypad.
60      If this property is set, the keyboard will be locked and only unlocked
61      after these keys are pressed. If only one key is set, a double click is
62      needed to unlock the keypad. The value of this property cannot be bigger
63      or equal than keypad,num-rows * keypad,num-columns.
64    $ref: /schemas/types.yaml#/definitions/uint32-array
65    minItems: 1
66    maxItems: 2
67
68required:
69  - compatible
70  - reg
71  - interrupts
72  - keypad,num-rows
73  - keypad,num-columns
74  - linux,keymap
75
76unevaluatedProperties: false
77
78examples:
79  - |
80    #include <dt-bindings/interrupt-controller/irq.h>
81    #include <dt-bindings/input/input.h>
82    #include <dt-bindings/gpio/gpio.h>
83    i2c {
84        #address-cells = <1>;
85        #size-cells = <0>;
86
87        keys@34 {
88            compatible = "adi,adp5588";
89            reg = <0x34>;
90
91            vcc-supply = <&vcc>;
92            interrupts = <21 IRQ_TYPE_EDGE_FALLING>;
93            interrupt-parent = <&gpio>;
94            reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
95
96            keypad,num-rows = <1>;
97            keypad,num-columns = <9>;
98            linux,keymap = <
99                MATRIX_KEY(0x00, 0x00, KEY_1)
100                MATRIX_KEY(0x00, 0x01, KEY_2)
101                MATRIX_KEY(0x00, 0x02, KEY_3)
102                MATRIX_KEY(0x00, 0x03, KEY_4)
103                MATRIX_KEY(0x00, 0x04, KEY_5)
104                MATRIX_KEY(0x00, 0x05, KEY_6)
105                MATRIX_KEY(0x00, 0x06, KEY_7)
106                MATRIX_KEY(0x00, 0x07, KEY_8)
107                MATRIX_KEY(0x00, 0x08, KEY_9)
108            >;
109        };
110    };
111...
112