diff --git a/drivers/media/dvb/dvb-usb/af9015.c b/drivers/media/dvb/dvb-usb/af9015.c
index 282a43d..9307b4ca 100644
--- a/drivers/media/dvb/dvb-usb/af9015.c
+++ b/drivers/media/dvb/dvb-usb/af9015.c
@@ -1141,7 +1141,18 @@
 		return -EAGAIN;
 
 	ret = priv->init[adap->id](fe);
+	if (ret)
+		goto err_unlock;
 
+	if (priv->tuner_ops_init[adap->id]) {
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 1);
+		ret = priv->tuner_ops_init[adap->id](fe);
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+	}
+
+err_unlock:
 	mutex_unlock(&adap->dev->usb_mutex);
 
 	return ret;
@@ -1157,8 +1168,19 @@
 	if (mutex_lock_interruptible(&adap->dev->usb_mutex))
 		return -EAGAIN;
 
+	if (priv->tuner_ops_sleep[adap->id]) {
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 1);
+		ret = priv->tuner_ops_sleep[adap->id](fe);
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+		if (ret)
+			goto err_unlock;
+	}
+
 	ret = priv->sleep[adap->id](fe);
 
+err_unlock:
 	mutex_unlock(&adap->dev->usb_mutex);
 
 	return ret;
@@ -1283,6 +1305,7 @@
 static int af9015_tuner_attach(struct dvb_usb_adapter *adap)
 {
 	int ret;
+	struct af9015_state *state = adap->dev->priv;
 	deb_info("%s:\n", __func__);
 
 	switch (af9015_af9013_config[adap->id].tuner) {
@@ -1340,6 +1363,14 @@
 		err("Unknown tuner id:%d",
 			af9015_af9013_config[adap->id].tuner);
 	}
+
+	state->tuner_ops_sleep[adap->id] =
+				adap->fe_adap[0].fe->ops.tuner_ops.sleep;
+	adap->fe_adap[0].fe->ops.tuner_ops.sleep = 0;
+
+	state->tuner_ops_init[adap->id] =
+				adap->fe_adap[0].fe->ops.tuner_ops.init;
+	adap->fe_adap[0].fe->ops.tuner_ops.init = 0;
 	return ret;
 }
 
diff --git a/drivers/media/dvb/dvb-usb/af9015.h b/drivers/media/dvb/dvb-usb/af9015.h
index f619063..ee2ec5b 100644
--- a/drivers/media/dvb/dvb-usb/af9015.h
+++ b/drivers/media/dvb/dvb-usb/af9015.h
@@ -108,6 +108,8 @@
 	int (*read_status[2]) (struct dvb_frontend *fe, fe_status_t *status);
 	int (*init[2]) (struct dvb_frontend *fe);
 	int (*sleep[2]) (struct dvb_frontend *fe);
+	int (*tuner_ops_init[2]) (struct dvb_frontend *fe);
+	int (*tuner_ops_sleep[2]) (struct dvb_frontend *fe);
 };
 
 struct af9015_config {