Squashed 'dts/upstream/' content from commit aaba2d45dc2a
git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/Bindings/input/gpio-keys.yaml b/Bindings/input/gpio-keys.yaml
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+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/gpio-keys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO attached keys
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - gpio-keys
+ - gpio-keys-polled
+
+ autorepeat: true
+
+ label:
+ description: Name of entire device
+
+ poll-interval: true
+
+patternProperties:
+ "^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switch))$":
+ $ref: input.yaml#
+
+ properties:
+ gpios:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ label:
+ description: Descriptive name of the key.
+
+ linux,code:
+ description: Key / Axis code to emit.
+
+ linux,input-type:
+ default: 1 # EV_KEY
+
+ linux,input-value:
+ description: |
+ If linux,input-type is EV_ABS or EV_REL then this
+ value is sent for events this button generates when pressed.
+ EV_ABS/EV_REL axis will generate an event with a value of 0
+ when all buttons with linux,input-type == type and
+ linux,code == axis are released. This value is interpreted
+ as a signed 32 bit value, e.g. to make a button generate a
+ value of -1 use:
+
+ linux,input-value = <0xffffffff>; /* -1 */
+
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ debounce-interval:
+ description:
+ Debouncing interval time in milliseconds. If not specified defaults to 5.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ default: 5
+
+ wakeup-source:
+ description: Button can wake-up the system.
+
+ wakeup-event-action:
+ description: |
+ Specifies whether the key should wake the system when asserted, when
+ deasserted, or both. This property is only valid for keys that wake up the
+ system (e.g., when the "wakeup-source" property is also provided).
+
+ Supported values are defined in linux-event-codes.h:
+
+ EV_ACT_ANY - both asserted and deasserted
+ EV_ACT_ASSERTED - asserted
+ EV_ACT_DEASSERTED - deasserted
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ linux,can-disable:
+ description:
+ Indicates that button is connected to dedicated (not shared) interrupt
+ which can be disabled to suppress events from the button.
+ type: boolean
+
+ required:
+ - linux,code
+
+ anyOf:
+ - required:
+ - interrupts
+ - required:
+ - interrupts-extended
+ - required:
+ - gpios
+
+ dependencies:
+ wakeup-event-action: [ wakeup-source ]
+ linux,input-value: [ gpios ]
+
+ unevaluatedProperties: false
+
+allOf:
+ - $ref: input.yaml#
+ - if:
+ properties:
+ compatible:
+ const: gpio-keys-polled
+ then:
+ required:
+ - poll-interval
+ else:
+ properties:
+ poll-interval: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ autorepeat;
+
+ key-up {
+ label = "GPIO Key UP";
+ linux,code = <103>;
+ gpios = <&gpio1 0 1>;
+ };
+
+ key-down {
+ label = "GPIO Key DOWN";
+ linux,code = <108>;
+ interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
+
+...