1 files changed, 18 insertions, 3 deletions

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 0a67031ffc13..7554a043ee46 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -877,6 +877,11 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
         int i;
         int current_num_contacts = data[2];
         int contacts_to_send = 0;
+        int x_offset = 0;
+
+        /* MTTPC does not support Height and Width */
+        if (wacom->features.type == MTTPC)
+                x_offset = -4;
 
         /*
          * First packet resets the counter since only the first
@@ -889,7 +894,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
         contacts_to_send = min(5, wacom->num_contacts_left);
 
         for (i = 0; i < contacts_to_send; i++) {
-                int offset = (WACOM_BYTES_PER_MT_PACKET * i) + 3;
+                int offset = (WACOM_BYTES_PER_MT_PACKET + x_offset) * i + 3;
                 bool touch = data[offset] & 0x1;
                 int id = le16_to_cpup((__le16 *)&data[offset + 1]);
                 int slot = find_slot_from_contactid(wacom, id);
@@ -900,8 +905,8 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
                 input_mt_slot(input, slot);
                 input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
                 if (touch) {
-                        int x = le16_to_cpup((__le16 *)&data[offset + 7]);
-                        int y = le16_to_cpup((__le16 *)&data[offset + 9]);
+                        int x = le16_to_cpup((__le16 *)&data[offset + x_offset + 7]);
+                        int y = le16_to_cpup((__le16 *)&data[offset + x_offset + 9]);
                         input_report_abs(input, ABS_MT_POSITION_X, x);
                         input_report_abs(input, ABS_MT_POSITION_Y, y);
                 }
@@ -1336,6 +1341,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
         case TABLETPCE:
         case TABLETPC2FG:
         case MTSCREEN:
+        case MTTPC:
                 sync = wacom_tpc_irq(wacom_wac, len);
                 break;
 
@@ -1657,6 +1663,7 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
                 /* fall through */
 
         case MTSCREEN:
+        case MTTPC:
                 if (features->device_type == BTN_TOOL_FINGER) {
                         wacom_wac->slots = kmalloc(features->touch_max *
                                                         sizeof(int),
@@ -2018,6 +2025,12 @@ static const struct wacom_features wacom_features_0xED =
 static const struct wacom_features wacom_features_0xEF =
         { "Wacom ISDv4 EF",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,
           0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x100 =
+        { "Wacom ISDv4 100",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
+          0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x101 =
+        { "Wacom ISDv4 101",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
+          0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x47 =
         { "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023,
           31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -2194,6 +2207,8 @@ const struct usb_device_id wacom_ids[] = {
         { USB_DEVICE_WACOM(0xEC) },
         { USB_DEVICE_WACOM(0xED) },
         { USB_DEVICE_WACOM(0xEF) },
+        { USB_DEVICE_WACOM(0x100) },
+        { USB_DEVICE_WACOM(0x101) },
         { USB_DEVICE_WACOM(0x47) },
         { USB_DEVICE_WACOM(0xF4) },
         { USB_DEVICE_WACOM(0xF8) },