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diff --git a/Bindings/input/max77650-onkey.yaml b/Bindings/input/max77650-onkey.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/max77650-onkey.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Onkey driver for MAX77650 PMIC from Maxim Integrated.
+
+maintainers:
+ - Bartosz Golaszewski <bgolaszewski@baylibre.com>
+
+description: |
+ This module is part of the MAX77650 MFD device. For more details
+ see Documentation/devicetree/bindings/mfd/max77650.yaml.
+
+ The onkey controller is represented as a sub-node of the PMIC node on
+ the device tree.
+
+allOf:
+ - $ref: input.yaml#
+
+properties:
+ compatible:
+ const: maxim,max77650-onkey
+
+ linux,code:
+ default: 116 # KEY_POWER
+
+ maxim,onkey-slide:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The system's button is a slide switch, not the default push button.
+
+required:
+ - compatible
+additionalProperties: false
+
+...