bindings/input/gpio-matrix-keypad.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $id: http://devicetree.org/schemas/input/gpio-matrix-keypad.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11   - Marek Vasut <marek.vasut@gmail.com>
17   keypad can sense a key-press and key-release by means of GPIO lines and
21   - $ref: /schemas/input/matrix-keymap.yaml#
25     const: gpio-matrix-keypad
27   row-gpios:
32   col-gpios:
39   linux,no-autorepeat:
43   gpio-activelow:
49   debounce-delay-ms:
53   col-scan-delay-us:
55       Delay, measured in microseconds, that is needed
59   all-cols-on-delay-us:
61       Delay, measured in microseconds, that is needed
65   drive-inactive-cols:
71   wakeup-source: true
74   - compatible
75   - row-gpios
76   - col-gpios
77   - linux,keymap
82   - |
83     matrix-keypad {
84         compatible = "gpio-matrix-keypad";
85         debounce-delay-ms = <5>;
86         col-scan-delay-us = <2>;
88         row-gpios = <&gpio2 25 0
92         col-gpios = <&gpio2 21 0
102         wakeup-source;