Input: wacom - cleanup multitouch code when touch_max is 2

Historically we dealt with touch_max equals to 2 differently from
other MT devices. Now we use input_mt_*() to process all MT events,
as long as touch_max is greater than 1. So, there is no need to
take (touch_max == 2) as a special case any more.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 7 insertions, 21 deletions

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 977d05cd9e2e..e73cf2c71f35 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1217,9 +1217,9 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
                          * a=(pi*r^2)/C.
                          */
                         int a = data[5];
-                        int x_res  = input_abs_get_res(input, ABS_X);
-                        int y_res  = input_abs_get_res(input, ABS_Y);
-                        width  = 2 * int_sqrt(a * WACOM_CONTACT_AREA_SCALE);
+                        int x_res = input_abs_get_res(input, ABS_MT_POSITION_X);
+                        int y_res = input_abs_get_res(input, ABS_MT_POSITION_Y);
+                        width = 2 * int_sqrt(a * WACOM_CONTACT_AREA_SCALE);
                         height = width * y_res / x_res;
                 }
 
@@ -1587,7 +1587,7 @@ static void wacom_abs_set_axis(struct input_dev *input_dev,
                 input_abs_set_res(input_dev, ABS_X, features->x_resolution);
                 input_abs_set_res(input_dev, ABS_Y, features->y_resolution);
         } else {
-                if (features->touch_max <= 2) {
+                if (features->touch_max == 1) {
                         input_set_abs_params(input_dev, ABS_X, 0,
                                 features->x_max, features->x_fuzz, 0);
                         input_set_abs_params(input_dev, ABS_Y, 0,
@@ -1815,14 +1815,8 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
         case MTTPC:
         case MTTPC_B:
         case TABLETPC2FG:
-                if (features->device_type == BTN_TOOL_FINGER) {
-                        unsigned int flags = INPUT_MT_DIRECT;
-
-                        if (wacom_wac->features.type == TABLETPC2FG)
-                                flags = 0;
-
-                        input_mt_init_slots(input_dev, features->touch_max, flags);
-                }
+                if (features->device_type == BTN_TOOL_FINGER && features->touch_max > 1)
+                        input_mt_init_slots(input_dev, features->touch_max, INPUT_MT_DIRECT);
                 /* fall through */
 
         case TABLETPC:
@@ -1883,10 +1877,6 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
                         __set_bit(BTN_RIGHT, input_dev->keybit);
 
                         if (features->touch_max) {
-                                /* touch interface */
-                                unsigned int flags = INPUT_MT_POINTER;
-
-                                __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
                                 if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
                                         input_set_abs_params(input_dev,
                                                      ABS_MT_TOUCH_MAJOR,
@@ -1894,12 +1884,8 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
                                         input_set_abs_params(input_dev,
                                                      ABS_MT_TOUCH_MINOR,
                                                      0, features->y_max, 0, 0);
-                                } else {
-                                        __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
-                                        __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
-                                        flags = 0;
                                 }
-                                input_mt_init_slots(input_dev, features->touch_max, flags);
+                                input_mt_init_slots(input_dev, features->touch_max, INPUT_MT_POINTER);
                         } else {
                                 /* buttons/keys only interface */
                                 __clear_bit(ABS_X, input_dev->absbit);