Input: rotary_encoder - add wake up support

This patch adds wake up support to GPIO rotary encoders.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/rotary-encoder.txt

@@ -15,6 +15,7 @@ Optional properties:
 - rotary-encoder,rollover: Automatic rollove when the rotary value becomes
   greater than the specified steps or smaller than 0. For absolute axis only.
 - rotary-encoder,half-period: Makes the driver work on half-period mode.
+- wakeup-source: Boolean, rotary encoder can wake up the system.
 
 See Documentation/input/rotary-encoder.txt for more information.
 

Documentation/input/rotary-encoder.txt

@@ -109,6 +109,7 @@ static struct rotary_encoder_platform_data my_rotary_encoder_info = {
 	.inverted_a	= 0,
 	.inverted_b	= 0,
 	.half_period	= false,
+	.wakeup_source	= false,
 };
 
 static struct platform_device rotary_encoder_device = {