Input: ucb1400_ts, mainstone-wm97xx - add BTN_TOUCH events

Add BTN_TOUCH event reporting to ucb1400_ts and accelerated mainstone-wm97xx
touchscreen drivers. Together with previously posted similar patch for
wm97xx-core this will make all touchscreen drivers behave consistently wrt.
BTN_TOUCH.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 5498662..e868264 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -151,12 +151,14 @@
 	input_report_abs(idev, ABS_X, x);
 	input_report_abs(idev, ABS_Y, y);
 	input_report_abs(idev, ABS_PRESSURE, pressure);
+	input_report_key(idev, BTN_TOUCH, 1);
 	input_sync(idev);
 }
 
 static void ucb1400_ts_event_release(struct input_dev *idev)
 {
 	input_report_abs(idev, ABS_PRESSURE, 0);
+	input_report_key(idev, BTN_TOUCH, 0);
 	input_sync(idev);
 }
 
@@ -377,7 +379,8 @@
 	ucb->ts_idev->id.product	= ucb->id;
 	ucb->ts_idev->open		= ucb1400_ts_open;
 	ucb->ts_idev->close		= ucb1400_ts_close;
-	ucb->ts_idev->evbit[0]		= BIT_MASK(EV_ABS);
+	ucb->ts_idev->evbit[0]		= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+	ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
 	ucb1400_adc_enable(ucb->ac97);
 	x_res = ucb1400_ts_read_xres(ucb);