1 files changed, 13 insertions, 4 deletions

diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 000cb414a78a..38ffbd50a0d2 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -60,6 +60,7 @@ static inline void ucb1x00_ts_evt_add(struct ucb1x00_ts *ts, u16 pressure, u16 x
         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);
 }
 
@@ -68,6 +69,7 @@ static inline void ucb1x00_ts_event_release(struct ucb1x00_ts *ts)
         struct input_dev *idev = ts->idev;
 
         input_report_abs(idev, ABS_PRESSURE, 0);
+        input_report_key(idev, BTN_TOUCH, 0);
         input_sync(idev);
 }
 
@@ -384,13 +386,20 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
         idev->open       = ucb1x00_ts_open;
         idev->close      = ucb1x00_ts_close;
 
-        __set_bit(EV_ABS, idev->evbit);
-        __set_bit(ABS_X, idev->absbit);
-        __set_bit(ABS_Y, idev->absbit);
-        __set_bit(ABS_PRESSURE, idev->absbit);
+        idev->evbit[0]   = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+        idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
         input_set_drvdata(idev, ts);
 
+        ucb1x00_adc_enable(ts->ucb);
+        ts->x_res = ucb1x00_ts_read_xres(ts);
+        ts->y_res = ucb1x00_ts_read_yres(ts);
+        ucb1x00_adc_disable(ts->ucb);
+
+        input_set_abs_params(idev, ABS_X, 0, ts->x_res, 0, 0);
+        input_set_abs_params(idev, ABS_Y, 0, ts->y_res, 0, 0);
+        input_set_abs_params(idev, ABS_PRESSURE, 0, 0, 0, 0);
+
         err = input_register_device(idev);
         if (err)
                 goto fail;