Input: atmel_mxt_ts - set pointer emulation on touchpads

Touchpads are pointers, so make sure to pass the correct values to
input_mt_report_pointer_emulation(). Without this, tap-to-click doesn't
work.

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index a248414..31113c3 100644 (file)
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -654,10 +654,11 @@ static void mxt_input_button(struct mxt_data *data, struct mxt_message *message)
        }
 }
 
-static void mxt_input_sync(struct input_dev *input_dev)
+static void mxt_input_sync(struct mxt_data *data)
 {
-       input_mt_report_pointer_emulation(input_dev, false);
-       input_sync(input_dev);
+       input_mt_report_pointer_emulation(data->input_dev,
+                                         data->pdata->t19_num_keys);
+       input_sync(data->input_dev);
 }
 
 static void mxt_input_touchevent(struct mxt_data *data,
@@ -707,7 +708,7 @@ static void mxt_input_touchevent(struct mxt_data *data,
                if (status & MXT_T9_RELEASE) {
                        input_mt_report_slot_state(input_dev,
                                                   MT_TOOL_FINGER, 0);
-                       mxt_input_sync(input_dev);
+                       mxt_input_sync(data);
                }
 
                /* Touch active */
@@ -783,7 +784,7 @@ static irqreturn_t mxt_process_messages_until_invalid(struct mxt_data *data)
        } while (reportid != 0xff);
 
        if (update_input)
-               mxt_input_sync(data->input_dev);
+               mxt_input_sync(data);
 
        return IRQ_HANDLED;
 }