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-rw-r--r--drivers/input/mouse/synaptics.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index d73a94270211..3c54b9b0f65f 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -67,6 +67,9 @@
#define X_MAX_POSITIVE 8176
#define Y_MAX_POSITIVE 8176
+/* maximum ABS_MT_POSITION displacement (in mm) */
+#define DMAX 10
+
/*****************************************************************************
* Stuff we need even when we do not want native Synaptics support
****************************************************************************/
@@ -917,7 +920,7 @@ static void synaptics_report_mt_data(struct psmouse *psmouse,
pos[i].y = synaptics_invert_y(hw[i]->y);
}
- input_mt_assign_slots(dev, slot, pos, nsemi, 0);
+ input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res);
for (i = 0; i < nsemi; i++) {
input_mt_slot(dev, slot[i]);