diff --git a/arch/arm/mach-s5pv210/mach-herring.c b/arch/arm/mach-s5pv210/mach-herring.c
index 7593c7e..af74a5b 100755
--- a/arch/arm/mach-s5pv210/mach-herring.c
+++ b/arch/arm/mach-s5pv210/mach-herring.c
@@ -2248,7 +2248,7 @@ static u8 t7_config[] = {GEN_POWERCONFIG_T7,
 static u8 t8_config[] = {GEN_ACQUISITIONCONFIG_T8,
                7, 0, 5, 0, 0, 0, 9, 35};
 static u8 t9_config[] = {TOUCH_MULTITOUCHSCREEN_T9,
-               139, 0, 0, 19, 11, 0, 32, 25, 2, 1, 25, 3, 1,
+               139, 0, 0, 19, 11, 0, 28, 36, 2, 1, 25, 3, 1,
                46, MXT224_MAX_MT_FINGERS, 5, 14, 10, 255, 3,
                255, 3, 18, 18, 10, 10, 141, 65, 143, 110, 18};
 static u8 t18_config[] = {SPT_COMCONFIG_T18,
@@ -2256,7 +2256,7 @@ static u8 t18_config[] = {SPT_COMCONFIG_T18,
 static u8 t20_config[] = {PROCI_GRIPFACESUPPRESSION_T20,
                7, 0, 0, 0, 0, 0, 0, 80, 40, 4, 35, 10};
 static u8 t22_config[] = {PROCG_NOISESUPPRESSION_T22,
-               5, 0, 0, 0, 0, 0, 0, 3, 30, 0, 0, 29, 34, 39,
+               5, 0, 0, 0, 0, 0, 0, 3, 20, 0, 0, 29, 34, 39,
                49, 58, 3};
 static u8 t28_config[] = {SPT_CTECONFIG_T28,
                1, 0, 3, 16, 63, 60};
diff --git a/drivers/input/touchscreen/mxt224.c b/drivers/input/touchscreen/mxt224.c
index 07143b1..ad8082b 100644
--- a/drivers/input/touchscreen/mxt224.c
+++ b/drivers/input/touchscreen/mxt224.c
@@ -30,6 +30,7 @@

 #define CMD_RESET_OFFSET       0
 #define CMD_BACKUP_OFFSET      1
+#define CMD_CALIBRATE_OFFSET       2 /* according to atmel_mxt_ts.c from 2.6.39 kernel */

 #define DETECT_MSG_MASK            0x80
 #define PRESS_MSG_MASK         0x40
@@ -129,6 +130,12 @@ static int __devinit mxt224_backup(struct mxt224_data *data)
    return write_mem(data, data->cmd_proc + CMD_BACKUP_OFFSET, 1, &buf);
 }

+static int __devinit mxt224_calibrate(struct mxt224_data *data)
+{
+   u8 buf = 0x55u; /* according to comment in Motorola's Droid X source, non-zero value forces calibration */
+   return write_mem(data, data->cmd_proc + CMD_CALIBRATE_OFFSET, 1, &buf);
+}
+
 static int get_object_info(struct mxt224_data *data, u8 object_type, u16 *size,
                u16 *address)
 {
@@ -404,6 +411,10 @@ static int mxt224_internal_resume(struct mxt224_data *data)

    data->power_on();

+   /* reset after resume */
+   ret = mxt224_reset(data);
+   msleep(20);
+
    i = 0;
    do {
        ret = write_config(data, GEN_POWERCONFIG_T7, data->power_cfg);
@@ -411,6 +422,9 @@ static int mxt224_internal_resume(struct mxt224_data *data)
        i++;
    } while (ret && i < 10);

+   /* calibrate after resume */
+   mxt224_calibrate(data);
+
    return ret;
 }