bindings/input/gpio-keys.yaml

1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/input/gpio-keys.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Device-Tree bindings for GPIO attached keys
10   - Rob Herring <robh@kernel.org>
15       - gpio-keys
16       - gpio-keys-polled
26         gpios:
39         linux,input-type:
47         linux,input-value:
49             If linux,input-type is EV_ABS or EV_REL then this
52             when all buttons with linux,input-type == type and
55             value of -1 use:
57             linux,input-value = <0xffffffff>; /* -1 */
61         debounce-interval:
68         wakeup-source:
69           description: Button can wake-up the system.
71         wakeup-event-action:
73             Specifies whether the key should wake the system when asserted, when
74             deasserted, or both. This property is only valid for keys that wake up the
75             system (e.g., when the "wakeup-source" property is also provided).
77             Supported values are defined in linux-event-codes.h:
79               EV_ACT_ANY        - both asserted and deasserted
80               EV_ACT_ASSERTED   - asserted
81               EV_ACT_DEASSERTED - deasserted
85         linux,can-disable:
91         pinctrl-0:
94         pinctrl-names:
98         - linux,code
101         - required:
102             - interrupts
103         - required:
104             - gpios
107         wakeup-event-action: [ wakeup-source ]
108         linux,input-value: [ gpios ]
115       const: gpio-keys-polled
118     poll-interval:
124     - poll-interval
129   - |
130     #include <dt-bindings/interrupt-controller/irq.h>
132     gpio-keys {
133         compatible = "gpio-keys";
139             gpios = <&gpio1 0 1>;