2 files changed, 38 insertions, 8 deletions

diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index da280189ef07..5ec617e28f7e 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -67,6 +67,10 @@
 #define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI    0x0245
 #define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO     0x0246
 #define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS     0x0247
+/* MacbookAir4,1 (unibody, July 2011) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI   0x0249
+#define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO    0x024a
+#define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS    0x024b
 /* MacbookAir4,2 (unibody, July 2011) */
 #define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI    0x024c
 #define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO     0x024d
@@ -112,6 +116,10 @@ static const struct usb_device_id bcm5974_table[] = {
         BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
         BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
         BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
+        /* MacbookAir4,1 */
+        BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI),
+        BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO),
+        BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS),
         /* MacbookAir4,2 */
         BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI),
         BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO),
@@ -334,6 +342,18 @@ static const struct bcm5974_config bcm5974_config_table[] = {
                 { DIM_X, DIM_X / SN_COORD, -4750, 5280 },
                 { DIM_Y, DIM_Y / SN_COORD, -150, 6730 }
         },
+        {
+                USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI,
+                USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO,
+                USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS,
+                HAS_INTEGRATED_BUTTON,
+                0x84, sizeof(struct bt_data),
+                0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+                { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+                { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+                { DIM_X, DIM_X / SN_COORD, -4620, 5140 },
+                { DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+        },
         {}
 };
 
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 59bfb70d330a..d2c0db159b18 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1262,18 +1262,28 @@ static int elantech_reconnect(struct psmouse *psmouse)
  */
 static int elantech_set_properties(struct elantech_data *etd)
 {
+        /* This represents the version of IC body. */
         int ver = (etd->fw_version & 0x0f0000) >> 16;
 
+        /* Early version of Elan touchpads doesn't obey the rule. */
         if (etd->fw_version < 0x020030 || etd->fw_version == 0x020600)
                 etd->hw_version = 1;
-        else if (etd->fw_version < 0x150600)
-                etd->hw_version = 2;
-        else if (ver == 5)
-                etd->hw_version = 3;
-        else if (ver == 6)
-                etd->hw_version = 4;
-        else
-                return -1;
+        else {
+                switch (ver) {
+                case 2:
+                case 4:
+                        etd->hw_version = 2;
+                        break;
+                case 5:
+                        etd->hw_version = 3;
+                        break;
+                case 6:
+                        etd->hw_version = 4;
+                        break;
+                default:
+                        return -1;
+                }
+        }
 
         /* decide which send_cmd we're gonna use early */
         etd->send_cmd = etd->hw_version >= 3 ? elantech_send_cmd :