Input: MT - Add flags to input_mt_init_slots()

Preparing to move more repeated code into the mt core, add a flags
argument to the input_mt_slots_init() function.

Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Tested-by: Ping Cheng <pingc@wacom.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index 6020d06..1985f27 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -25,7 +25,8 @@
  * May be called repeatedly. Returns -EINVAL if attempting to
  * reinitialize with a different number of slots.
  */
-int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots)
+int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
+			unsigned int flags)
 {
 	struct input_mt *mt = dev->mt;
 	int i;
@@ -40,6 +41,7 @@
 		return -ENOMEM;
 
 	mt->num_slots = num_slots;
+	mt->flags = flags;
 	input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0);
 	input_set_abs_params(dev, ABS_MT_TRACKING_ID, 0, TRKID_MAX, 0, 0);