Input: tsc2007 - add X, Y and Z fuzz factors to platform data

These new platform-specific values can be used to set the fuzz parameter
passed to the input_set_abs_params() function for the ABS_X, ABS_Y and
ABS_PRESSURE axes.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2 files changed, 7 insertions, 3 deletions

diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 87c40c79f71e..fadc11545b1e 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -310,9 +310,10 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
         input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
         input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
-        input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
-        input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
-        input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, 0, 0);
+        input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, pdata->fuzzx, 0);
+        input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, pdata->fuzzy, 0);
+        input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT,
+                        pdata->fuzzz, 0);
 
         if (pdata->init_platform_hw)
                 pdata->init_platform_hw();
diff --git a/include/linux/i2c/tsc2007.h b/include/linux/i2c/tsc2007.h
index a51dac081aca..591427a63b06 100644
--- a/include/linux/i2c/tsc2007.h
+++ b/include/linux/i2c/tsc2007.h
@@ -10,6 +10,9 @@ struct tsc2007_platform_data {
         unsigned long poll_delay; /* delay (in ms) after pen-down event
                                      before polling starts */
         unsigned long poll_period; /* time (in ms) between samples */
+        int     fuzzx; /* fuzz factor for X, Y and pressure axes */
+        int     fuzzy;
+        int     fuzzz;
 
         int     (*get_pendown_state)(void);
         void    (*clear_penirq)(void);          /* If needed, clear 2nd level