Input: add RAVE SP Powerbutton driver

Add driver that properly handles input event emitted by RAVE SP
devices.

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/input/zii,rave-sp-pwrbutton.txt b/Documentation/devicetree/bindings/input/zii,rave-sp-pwrbutton.txt
new file mode 100644
index 000000000000..43ef770dfeb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/zii,rave-sp-pwrbutton.txt
@@ -0,0 +1,22 @@
+Zodiac Inflight Innovations RAVE Supervisory Processor Power Button Bindings
+
+RAVE SP input device is a "MFD cell" device corresponding to power
+button functionality of RAVE Supervisory Processor. It is expected
+that its Device Tree node is specified as a child of the node
+corresponding to the parent RAVE SP device (as documented in
+Documentation/devicetree/bindings/mfd/zii,rave-sp.txt)
+
+Required properties:
+
+- compatible: Should be "zii,rave-sp-pwrbutton"
+
+Example:
+
+	rave-sp {
+		compatible = "zii,rave-sp-rdu1";
+		current-speed = <38400>;
+
+		pwrbutton {
+			compatible = "zii,rave-sp-pwrbutton";
+		};
+	}