diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 237aea34b69f..0a5c98d46864 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -963,7 +963,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
 {
 	struct hci_uart *hu = hci_get_drvdata(hdev);
 	struct qca_data *qca = hu->priv;
-	struct qca_serdev *qcadev;
+	struct qca_serdev *qcadev = NULL;
 	struct sk_buff *skb;
 	u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 };
 
@@ -985,18 +985,19 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
 	skb_queue_tail(&qca->txq, skb);
 	hci_uart_tx_wakeup(hu);
 
-	qcadev = serdev_device_get_drvdata(hu->serdev);
+	if (hu->serdev)
+		qcadev = serdev_device_get_drvdata(hu->serdev);
 
 	/* Wait for the baudrate change request to be sent */
-
 	while (!skb_queue_empty(&qca->txq))
 		usleep_range(100, 200);
 
-	serdev_device_wait_until_sent(hu->serdev,
-		      msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
+	if (hu->serdev)
+		serdev_device_wait_until_sent(hu->serdev,
+				msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
 
 	/* Give the controller time to process the request */
-	if (qcadev->btsoc_type == QCA_WCN3990)
+	if (qcadev && qcadev->btsoc_type == QCA_WCN3990)
 		msleep(10);
 	else
 		msleep(300);
@@ -1072,10 +1073,12 @@ static unsigned int qca_get_speed(struct hci_uart *hu,
 
 static int qca_check_speeds(struct hci_uart *hu)
 {
-	struct qca_serdev *qcadev;
+	struct qca_serdev *qcadev = NULL;
 
-	qcadev = serdev_device_get_drvdata(hu->serdev);
-	if (qcadev->btsoc_type == QCA_WCN3990) {
+	if (hu->serdev)
+		qcadev = serdev_device_get_drvdata(hu->serdev);
+
+	if (qcadev && qcadev->btsoc_type == QCA_WCN3990) {
 		if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
 		    !qca_get_speed(hu, QCA_OPER_SPEED))
 			return -EINVAL;
@@ -1091,7 +1094,7 @@ static int qca_check_speeds(struct hci_uart *hu)
 static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 {
 	unsigned int speed, qca_baudrate;
-	struct qca_serdev *qcadev;
+	struct qca_serdev *qcadev = NULL;
 	int ret = 0;
 
 	if (speed_type == QCA_INIT_SPEED) {
@@ -1106,8 +1109,10 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 		/* Disable flow control for wcn3990 to deassert RTS while
 		 * changing the baudrate of chip and host.
 		 */
-		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (qcadev->btsoc_type == QCA_WCN3990)
+		if (hu->serdev)
+			qcadev = serdev_device_get_drvdata(hu->serdev);
+
+		if (qcadev && qcadev->btsoc_type == QCA_WCN3990)
 			hci_uart_set_flow_control(hu, true);
 
 		qca_baudrate = qca_get_baudrate_value(speed);
@@ -1119,7 +1124,7 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 		host_set_baudrate(hu, speed);
 
 error:
-		if (qcadev->btsoc_type == QCA_WCN3990)
+		if (qcadev && qcadev->btsoc_type == QCA_WCN3990)
 			hci_uart_set_flow_control(hu, false);
 	}
 
@@ -1181,11 +1186,15 @@ static int qca_setup(struct hci_uart *hu)
 	struct hci_dev *hdev = hu->hdev;
 	struct qca_data *qca = hu->priv;
 	unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200;
-	struct qca_serdev *qcadev;
+	struct qca_serdev *qcadev = NULL;
 	int ret;
 	int soc_ver = 0;
+	enum qca_btsoc_type btsoc_type = QCA_ROME;
 
-	qcadev = serdev_device_get_drvdata(hu->serdev);
+	if (hu->serdev) {
+		qcadev = serdev_device_get_drvdata(hu->serdev);
+		btsoc_type = qcadev->btsoc_type;
+	}
 
 	ret = qca_check_speeds(hu);
 	if (ret)
@@ -1194,7 +1203,7 @@ static int qca_setup(struct hci_uart *hu)
 	/* Patch downloading has to be done without IBS mode */
 	clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
 
-	if (qcadev->btsoc_type == QCA_WCN3990) {
+	if (qcadev && btsoc_type == QCA_WCN3990) {
 		bt_dev_info(hdev, "setting up wcn3990");
 
 		/* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
@@ -1225,7 +1234,7 @@ static int qca_setup(struct hci_uart *hu)
 		qca_baudrate = qca_get_baudrate_value(speed);
 	}
 
-	if (qcadev->btsoc_type != QCA_WCN3990) {
+	if (btsoc_type != QCA_WCN3990) {
 		/* Get QCA version information */
 		ret = qca_read_soc_version(hdev, &soc_ver);
 		if (ret)
@@ -1234,7 +1243,7 @@ static int qca_setup(struct hci_uart *hu)
 
 	bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
 	/* Setup patch / NVM configurations */
-	ret = qca_uart_setup(hdev, qca_baudrate, qcadev->btsoc_type, soc_ver);
+	ret = qca_uart_setup(hdev, qca_baudrate, btsoc_type, soc_ver);
 	if (!ret) {
 		set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
 		qca_debugfs_init(hdev);
@@ -1250,7 +1259,7 @@ static int qca_setup(struct hci_uart *hu)
 	}
 
 	/* Setup bdaddr */
-	if (qcadev->btsoc_type == QCA_WCN3990)
+	if (btsoc_type == QCA_WCN3990)
 		hu->hdev->set_bdaddr = qca_set_bdaddr;
 	else
 		hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
