diff --git a/drivers/media/dvb/mantis/mantis_i2c.c b/drivers/media/dvb/mantis/mantis_i2c.c
index 8b90a2af6871..53c5f88227be 100644
--- a/drivers/media/dvb/mantis/mantis_i2c.c
+++ b/drivers/media/dvb/mantis/mantis_i2c.c
@@ -39,7 +39,7 @@ static int mantis_ack_wait(struct mantis_pci *mantis)
 					     mantis->mantis_int_stat & MANTIS_INT_I2CDONE,
 					     msecs_to_jiffies(50)) == -ERESTARTSYS) {
 
-		dprintk(verbose, MANTIS_DEBUG, 1, "I2C Transfer failed, Master !I2CDONE");
+		dprintk(verbose, MANTIS_DEBUG, 1, "Master !I2CDONE");
 		rc = -EREMOTEIO;
 	}
 	while (!(mantis->mantis_int_stat & MANTIS_INT_I2CRACK)) {
@@ -62,7 +62,9 @@ static int mantis_i2c_read(struct mantis_pci *mantis, const struct i2c_msg *msg)
 {
 	u32 rxd, i;
 
-	dprintk(verbose, MANTIS_INFO, 0, "        %s:  Address=[0x%02x] <R>[ ", __func__, msg->addr);
+	dprintk(verbose, MANTIS_INFO, 0, "        %s:  Address=[0x%02x] <R>[ ",
+		__func__, msg->addr);
+
 	for (i = 0; i < msg->len; i++) {
 		rxd = (msg->addr << 25) | (1 << 24)
 					| MANTIS_I2C_RATE_3
@@ -92,7 +94,9 @@ static int mantis_i2c_write(struct mantis_pci *mantis, const struct i2c_msg *msg
 	int i;
 	u32 txd = 0;
 
-	dprintk(verbose, MANTIS_INFO, 0, "        %s: Address=[0x%02x] <W>[ ", __func__, msg->addr);
+	dprintk(verbose, MANTIS_INFO, 0, "        %s: Address=[0x%02x] <W>[ ",
+		__func__, msg->addr);
+
 	for (i = 0; i < msg->len; i++) {
 		dprintk(verbose, MANTIS_INFO, 0, "%02x ", msg->buf[i]);
 		txd = (msg->addr << 25) | (msg->buf[i] << 8)
diff --git a/drivers/media/dvb/mantis/mantis_vp1034.c b/drivers/media/dvb/mantis/mantis_vp1034.c
index c9c947911627..f6766d0793d7 100644
--- a/drivers/media/dvb/mantis/mantis_vp1034.c
+++ b/drivers/media/dvb/mantis/mantis_vp1034.c
@@ -40,12 +40,14 @@ int vp1034_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 
 	switch (voltage) {
 	case SEC_VOLTAGE_13:
-		mmwrite((mmread(MANTIS_GPIF_ADDR)) | voltage, MANTIS_GPIF_ADDR);
 		dprintk(verbose, MANTIS_ERROR, 1, "Polarization=[13V]");
+		gpio_set_bits(mantis, 13, 1);
+		gpio_set_bits(mantis, 14, 0);
 		break;
 	case SEC_VOLTAGE_18:
-		mmwrite((mmread(MANTIS_GPIF_ADDR)) & voltage, MANTIS_GPIF_ADDR);
 		dprintk(verbose, MANTIS_ERROR, 1, "Polarization=[18V]");
+		gpio_set_bits(mantis, 13, 1);
+		gpio_set_bits(mantis, 14, 1);
 		break;
 	case SEC_VOLTAGE_OFF:
 		dprintk(verbose, MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");