diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c
index c5edbd5bdb7e..c76b2101193c 100644
--- a/drivers/media/usb/cx231xx/cx231xx-cards.c
+++ b/drivers/media/usb/cx231xx/cx231xx-cards.c
@@ -979,6 +979,7 @@ struct cx231xx_board cx231xx_boards[] = {
 		.demod_i2c_master = I2C_1_MUX_3,
 		.has_dvb = 1,
 		.demod_addr = 0x59, /* 0xb2 >> 1 */
+		.demod_addr2 = 0x64, /* 0xc8 >> 1 */
 		.norm = V4L2_STD_ALL,
 
 		.input = {{
diff --git a/drivers/media/usb/cx231xx/cx231xx-dvb.c b/drivers/media/usb/cx231xx/cx231xx-dvb.c
index d945ae51851b..713029420fcf 100644
--- a/drivers/media/usb/cx231xx/cx231xx-dvb.c
+++ b/drivers/media/usb/cx231xx/cx231xx-dvb.c
@@ -1177,14 +1177,17 @@ static int dvb_init(struct cx231xx *dev)
 	{
 		struct i2c_client *client;
 		struct i2c_adapter *adapter;
+		struct i2c_adapter *adapter2;
 		struct i2c_board_info info = {};
 		struct si2157_config si2157_config = {};
 		struct lgdt3306a_config lgdt3306a_config = {};
+		struct si2168_config si2168_config = {};
 
-		/* attach demodulator chip */
+		/* attach first demodulator chip */
 		lgdt3306a_config = hauppauge_955q_lgdt3306a_config;
 		lgdt3306a_config.fe = &dev->dvb->frontend[0];
 		lgdt3306a_config.i2c_adapter = &adapter;
+		lgdt3306a_config.deny_i2c_rptr = 0;
 
 		strlcpy(info.type, "lgdt3306a", sizeof(info.type));
 		info.addr = dev->board.demod_addr;
@@ -1206,10 +1209,43 @@ static int dvb_init(struct cx231xx *dev)
 		}
 
 		dvb->i2c_client_demod[0] = client;
-		dev->dvb->frontend[0]->ops.i2c_gate_ctrl = NULL;
+
+		/* attach second demodulator chip */
+		si2168_config.ts_mode = SI2168_TS_SERIAL;
+		si2168_config.fe = &dev->dvb->frontend[1];
+		si2168_config.i2c_adapter = &adapter2;
+		si2168_config.ts_clock_inv = true;
+
+		memset(&info, 0, sizeof(struct i2c_board_info));
+		strlcpy(info.type, "si2168", sizeof(info.type));
+		info.addr = dev->board.demod_addr2;
+		info.platform_data = &si2168_config;
+
+		request_module(info.type);
+		client = i2c_new_device(adapter, &info);
+		if (client == NULL || client->dev.driver == NULL) {
+			dev_err(dev->dev,
+				"Failed to attach %s frontend.\n", info.type);
+			module_put(dvb->i2c_client_demod[0]->dev.driver->owner);
+			i2c_unregister_device(dvb->i2c_client_demod[0]);
+			result = -ENODEV;
+			goto out_free;
+		}
+
+		if (!try_module_get(client->dev.driver->owner)) {
+			i2c_unregister_device(client);
+			module_put(dvb->i2c_client_demod[0]->dev.driver->owner);
+			i2c_unregister_device(dvb->i2c_client_demod[0]);
+			result = -ENODEV;
+			goto out_free;
+		}
+
+		dvb->i2c_client_demod[1] = client;
+		dvb->frontend[1]->id = 1;
 
 		/* define general-purpose callback pointer */
 		dvb->frontend[0]->callback = cx231xx_tuner_callback;
+		dvb->frontend[1]->callback = cx231xx_tuner_callback;
 
 		/* attach tuner */
 		si2157_config.fe = dev->dvb->frontend[0];
@@ -1227,6 +1263,8 @@ static int dvb_init(struct cx231xx *dev)
 
 		client = i2c_new_device(adapter, &info);
 		if (client == NULL || client->dev.driver == NULL) {
+			module_put(dvb->i2c_client_demod[1]->dev.driver->owner);
+			i2c_unregister_device(dvb->i2c_client_demod[1]);
 			module_put(dvb->i2c_client_demod[0]->dev.driver->owner);
 			i2c_unregister_device(dvb->i2c_client_demod[0]);
 			result = -ENODEV;
@@ -1237,6 +1275,8 @@ static int dvb_init(struct cx231xx *dev)
 			dev_err(dev->dev,
 				"Failed to obtain %s tuner.\n",	info.type);
 			i2c_unregister_device(client);
+			module_put(dvb->i2c_client_demod[1]->dev.driver->owner);
+			i2c_unregister_device(dvb->i2c_client_demod[1]);
 			module_put(dvb->i2c_client_demod[0]->dev.driver->owner);
 			i2c_unregister_device(dvb->i2c_client_demod[0]);
 			result = -ENODEV;
@@ -1244,7 +1284,13 @@ static int dvb_init(struct cx231xx *dev)
 		}
 
 		dev->cx231xx_reset_analog_tuner = NULL;
-		dev->dvb->i2c_client_tuner = client;
+		dvb->i2c_client_tuner = client;
+
+		dvb->frontend[1]->tuner_priv = dvb->frontend[0]->tuner_priv;
+
+		memcpy(&dvb->frontend[1]->ops.tuner_ops,
+			&dvb->frontend[0]->ops.tuner_ops,
+			sizeof(struct dvb_tuner_ops));
 		break;
 	}
 	default: