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diff --git a/dts/Bindings/input/keys.txt b/dts/Bindings/input/keys.txt
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+General Keys Properties:
+Optional properties for Keys:
+- power-off-time-sec: Duration in seconds which the key should be kept
+ pressed for device to power off automatically. Device with key pressed
+ shutdown feature can specify this property.
+- linux,keycodes: Specifies the numeric keycode values to be used for
+ reporting key presses.