1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 000cb414a78..92b85e28a15 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -385,12 +385,18 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
         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);
 
         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;