diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index a27c251bf56e..07d27724d915 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -19,6 +19,9 @@
 #define MTK_SEC_MAP_COMMON_SIZE	12
 #define MTK_SEC_MAP_NEED_SEND_SIZE	52
 
+/* It is for mt79xx iso data transmission setting */
+#define MTK_ISO_THRESHOLD	264
+
 struct btmtk_patch_header {
 	u8 datetime[16];
 	u8 platform[4];
@@ -431,6 +434,97 @@ int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
 }
 EXPORT_SYMBOL_GPL(btmtk_process_coredump);
 
+int btmtk_isointf_setup(struct hci_dev *hdev)
+{
+	u8 iso_param[2] = { 0x08, 0x01 };
+	struct sk_buff *skb;
+
+	skb = __hci_cmd_sync(hdev, 0xfd98, sizeof(iso_param), iso_param,
+			     HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		bt_dev_err(hdev, "Failed to apply iso setting (%ld)", PTR_ERR(skb));
+		return PTR_ERR(skb);
+	}
+	kfree_skb(skb);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(btmtk_isointf_setup);
+
+int btmtk_isopkt_pad(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	if (skb->len > MTK_ISO_THRESHOLD)
+		return -EINVAL;
+
+	if (skb_pad(skb, MTK_ISO_THRESHOLD - skb->len))
+		return -ENOMEM;
+
+	__skb_put(skb, MTK_ISO_THRESHOLD - skb->len);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(btmtk_isopkt_pad);
+
+int btmtk_recv_isopkt(struct hci_dev *hdev, void *buffer, int count)
+{
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
+	struct sk_buff *skb;
+	unsigned long flags;
+	int err = 0;
+
+	spin_lock_irqsave(&btmtk_data->isopkt_info.isorxlock, flags);
+	skb = btmtk_data->isopkt_info.isopkt_skb;
+
+	while (count) {
+		int len;
+
+		if (!skb) {
+			skb = bt_skb_alloc(HCI_MAX_ISO_SIZE, GFP_ATOMIC);
+			if (!skb) {
+				err = -ENOMEM;
+				break;
+			}
+
+			hci_skb_pkt_type(skb) = HCI_ISODATA_PKT;
+			hci_skb_expect(skb) = HCI_ISO_HDR_SIZE;
+		}
+
+		len = min_t(uint, hci_skb_expect(skb), count);
+		skb_put_data(skb, buffer, len);
+
+		count -= len;
+		buffer += len;
+		hci_skb_expect(skb) -= len;
+
+		if (skb->len == HCI_ISO_HDR_SIZE) {
+			__le16 dlen = hci_iso_hdr(skb)->dlen;
+
+			/* Complete ISO header */
+			hci_skb_expect(skb) = __le16_to_cpu(dlen);
+
+			if (skb_tailroom(skb) < hci_skb_expect(skb)) {
+				kfree_skb(skb);
+				skb = NULL;
+
+				err = -EILSEQ;
+				break;
+			}
+		}
+
+		if (!hci_skb_expect(skb)) {
+			/* Complete frame */
+			hci_recv_frame(hdev, skb);
+			skb = NULL;
+		}
+	}
+
+	btmtk_data->isopkt_info.isopkt_skb = skb;
+	spin_unlock_irqrestore(&btmtk_data->isopkt_info.isorxlock, flags);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(btmtk_recv_isopkt);
+
 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
 MODULE_AUTHOR("Mark Chen <mark-yw.chen@mediatek.com>");
 MODULE_DESCRIPTION("Bluetooth support for MediaTek devices ver " VERSION);
diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
index 6a0697a22b16..cb9dc4ccc266 100644
--- a/drivers/bluetooth/btmtk.h
+++ b/drivers/bluetooth/btmtk.h
@@ -1,6 +1,8 @@
 /* SPDX-License-Identifier: ISC */
 /* Copyright (C) 2021 MediaTek Inc. */
 
+#include <linux/usb.h>
+
 #define FIRMWARE_MT7622		"mediatek/mt7622pr2h.bin"
 #define FIRMWARE_MT7663		"mediatek/mt7663pr2h.bin"
 #define FIRMWARE_MT7668		"mediatek/mt7668pr2h.bin"
@@ -129,6 +131,9 @@ struct btmtk_hci_wmt_params {
 typedef int (*btmtk_reset_sync_func_t)(struct hci_dev *, void *);
 
 enum {
+	BTMTK_ISOPKT_OVER_INTR,
+	BTMTK_ISOPKT_RUNNING,
+
 	__BTMTK_NUM_FLAGS,
 };
 
@@ -139,12 +144,24 @@ struct btmtk_coredump_info {
 	int state;
 };
 
+struct btmtk_isopkt_info {
+	struct usb_endpoint_descriptor *isopkt_tx_ep;
+	struct usb_endpoint_descriptor *isopkt_rx_ep;
+	struct usb_interface *isopkt_intf;
+	struct usb_anchor isopkt_anchor;
+	struct sk_buff *isopkt_skb;
+
+	/* spinlock for ISO data transmission */
+	spinlock_t isorxlock;
+};
+
 struct btmediatek_data {
 	DECLARE_BITMAP(flags, __BTMTK_NUM_FLAGS);
 
 	u32 dev_id;
 	btmtk_reset_sync_func_t reset_sync;
 	struct btmtk_coredump_info cd_info;
+	struct btmtk_isopkt_info isopkt_info;
 };
 
 #define btmtk_set_flag(hdev, nr)						\
@@ -186,6 +203,12 @@ int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb);
 
 void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver,
 			   u32 fw_flavor);
+
+int btmtk_isointf_setup(struct hci_dev *hdev);
+
+int btmtk_isopkt_pad(struct hci_dev *hdev, struct sk_buff *skb);
+
+int btmtk_recv_isopkt(struct hci_dev *hdev, void *buffer, int count);
 #else
 
 static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
@@ -225,4 +248,19 @@ static void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id,
 				  u32 fw_ver, u32 fw_flavor)
 {
 }
+
+static int btmtk_isointf_setup(struct hci_dev *hdev)
+{
+	return -EOPNOTSUPP;
+}
+
+static int btmtk_isopkt_pad(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static int btmtk_recv_isopkt(struct hci_dev *hdev, void *buffer, int count)
+{
+	return -EOPNOTSUPP;
+}
 #endif
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 83765c0c14b4..e297dcb6a8e2 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2653,6 +2653,8 @@ static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
 #define MTK_BT_RESET_REG_CONNV3	0x70028610
 #define MTK_BT_READ_DEV_ID	0x70010200
 
+/* MediaTek ISO Interface */
+#define MTK_ISO_IFNUM		2
 
 static void btusb_mtk_wmt_recv(struct urb *urb)
 {
@@ -3129,6 +3131,239 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
 	return err;
 }
 
+static void btusb_mtk_intr_complete(struct urb *urb)
+{
+	struct hci_dev *hdev = urb->context;
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	int err;
+
+	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+	       urb->actual_length);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return;
+
+	if (urb->status == 0) {
+		hdev->stat.byte_rx += urb->actual_length;
+
+		if (btmtk_recv_isopkt(hdev, urb->transfer_buffer,
+				      urb->actual_length) < 0) {
+			bt_dev_err(hdev, "corrupted iso packet");
+			hdev->stat.err_rx++;
+		}
+	} else if (urb->status == -ENOENT) {
+		/* Avoid suspend failed when usb_kill_urb */
+		return;
+	}
+
+	if (!btmtk_test_flag(hdev, BTMTK_ISOPKT_RUNNING))
+		return;
+
+	usb_mark_last_busy(data->udev);
+	usb_anchor_urb(urb, &btmtk_data->isopkt_info.isopkt_anchor);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err < 0) {
+		/* -EPERM: urb is being killed;
+		 * -ENODEV: device got disconnected
+		 */
+		if (err != -EPERM && err != -ENODEV)
+			bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+				   urb, -err);
+		if (err != -EPERM)
+			hci_cmd_sync_cancel(hdev, -err);
+		usb_unanchor_urb(urb);
+	}
+}
+
+static int btusb_mtk_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	unsigned char *buf;
+	unsigned int pipe;
+	struct urb *urb;
+	int err, size;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!btmtk_data->isopkt_info.isopkt_rx_ep)
+		return -ENODEV;
+
+	urb = usb_alloc_urb(0, mem_flags);
+	if (!urb)
+		return -ENOMEM;
+	size = le16_to_cpu(btmtk_data->isopkt_info.isopkt_rx_ep->wMaxPacketSize);
+
+	buf = kmalloc(size, mem_flags);
+	if (!buf) {
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	pipe = usb_rcvintpipe(data->udev,
+			      btmtk_data->isopkt_info.isopkt_rx_ep->bEndpointAddress);
+
+	usb_fill_int_urb(urb, data->udev, pipe, buf, size,
+			 btusb_mtk_intr_complete, hdev,
+			 btmtk_data->isopkt_info.isopkt_rx_ep->bInterval);
+
+	urb->transfer_flags |= URB_FREE_BUFFER;
+
+	usb_mark_last_busy(data->udev);
+	usb_anchor_urb(urb, &btmtk_data->isopkt_info.isopkt_anchor);
+
+	err = usb_submit_urb(urb, mem_flags);
+	if (err < 0) {
+		if (err != -EPERM && err != -ENODEV)
+			bt_dev_err(hdev, "urb %p submission failed (%d)",
+				   urb, -err);
+		usb_unanchor_urb(urb);
+	}
+
+	usb_free_urb(urb);
+
+	return err;
+}
+
+static inline int __set_mtk_intr_interface(struct hci_dev *hdev, unsigned int ifnum)
+{
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
+	struct usb_interface *intf = btmtk_data->isopkt_info.isopkt_intf;
+	int i, err;
+
+	if (!btmtk_data->isopkt_info.isopkt_intf)
+		return -ENODEV;
+
+	err = usb_set_interface(data->udev, ifnum, 1);
+	if (err < 0) {
+		bt_dev_err(hdev, "setting interface failed (%d)", -err);
+		return err;
+	}
+
+	btmtk_data->isopkt_info.isopkt_tx_ep = NULL;
+	btmtk_data->isopkt_info.isopkt_rx_ep = NULL;
+
+	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+		struct usb_endpoint_descriptor *ep_desc;
+
+		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+		if (!btmtk_data->isopkt_info.isopkt_tx_ep &&
+		    usb_endpoint_is_int_out(ep_desc)) {
+			btmtk_data->isopkt_info.isopkt_tx_ep = ep_desc;
+			continue;
+		}
+
+		if (!btmtk_data->isopkt_info.isopkt_rx_ep &&
+		    usb_endpoint_is_int_in(ep_desc)) {
+			btmtk_data->isopkt_info.isopkt_rx_ep = ep_desc;
+			continue;
+		}
+	}
+
+	if (!btmtk_data->isopkt_info.isopkt_tx_ep ||
+	    !btmtk_data->isopkt_info.isopkt_rx_ep) {
+		bt_dev_err(hdev, "invalid interrupt descriptors");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int btusb_mtk_isopkt_stop(struct hci_dev *hdev)
+{
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
+
+	usb_kill_anchored_urbs(&btmtk_data->isopkt_info.isopkt_anchor);
+
+	return 0;
+}
+
+static int btusb_mtk_isopkt_start(struct hci_dev *hdev)
+{
+	if (btmtk_test_flag(hdev, BTMTK_ISOPKT_RUNNING)) {
+		if (btusb_mtk_submit_intr_urb(hdev, GFP_NOIO) < 0)
+			btmtk_clear_flag(hdev, BTMTK_ISOPKT_RUNNING);
+	}
+
+	return 0;
+}
+
+static int btusb_mtk_claim_iso_intf(struct btusb_data *data, struct usb_interface *intf)
+{
+	struct btmediatek_data *btmtk_data = hci_get_priv(data->hdev);
+	int err;
+
+	err = usb_driver_claim_interface(&btusb_driver, intf, data);
+	if (err < 0)
+		return err;
+
+	init_usb_anchor(&btmtk_data->isopkt_info.isopkt_anchor);
+	spin_lock_init(&btmtk_data->isopkt_info.isorxlock);
+
+	__set_mtk_intr_interface(data->hdev, MTK_ISO_IFNUM);
+
+	err = btusb_mtk_submit_intr_urb(data->hdev, GFP_KERNEL);
+	if (err < 0) {
+		btusb_mtk_isopkt_stop(data->hdev);
+		bt_dev_err(data->hdev, "ISO intf not support (%d)", err);
+		return err;
+	}
+
+	btmtk_set_flag(data->hdev, BTMTK_ISOPKT_OVER_INTR);
+
+	return 0;
+}
+
+static struct urb *alloc_mtk_intr_urb(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
+	unsigned int pipe;
+	struct urb *urb;
+
+	if (!btmtk_data->isopkt_info.isopkt_tx_ep)
+		return ERR_PTR(-ENODEV);
+
+	urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!urb)
+		return ERR_PTR(-ENOMEM);
+
+	if (btmtk_isopkt_pad(hdev, skb))
+		return ERR_PTR(-EINVAL);
+
+	pipe = usb_sndintpipe(data->udev,
+			      btmtk_data->isopkt_info.isopkt_tx_ep->bEndpointAddress);
+
+	usb_fill_int_urb(urb, data->udev, pipe,
+			 skb->data, skb->len, btusb_tx_complete,
+			 skb, btmtk_data->isopkt_info.isopkt_tx_ep->bInterval);
+
+	skb->dev = (void *)hdev;
+
+	return urb;
+}
+
+static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct urb *urb;
+
+	BT_DBG("%s", hdev->name);
+
+	if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
+		urb = alloc_mtk_intr_urb(hdev, skb);
+		if (IS_ERR(urb))
+			return PTR_ERR(urb);
+
+		return submit_or_queue_tx_urb(hdev, urb);
+	} else {
+		return btusb_send_frame(hdev, skb);
+	}
+}
+
 static int btusb_mtk_setup(struct hci_dev *hdev)
 {
 	struct btusb_data *data = hci_get_drvdata(hdev);
@@ -3213,6 +3448,12 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
 		/* It's Device EndPoint Reset Option Register */
 		btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
 
+		/* Claim ISO data interface and endpoint */
+		mediatek->isopkt_info.isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
+		err = btusb_mtk_claim_iso_intf(data, mediatek->isopkt_info.isopkt_intf);
+		if (err < 0)
+			mediatek->isopkt_info.isopkt_intf = NULL;
+
 		/* Enable Bluetooth protocol */
 		param = 1;
 		wmt_params.op = BTMTK_WMT_FUNC_CTRL;
@@ -3229,6 +3470,13 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
 
 		hci_set_msft_opcode(hdev, 0xFD30);
 		hci_set_aosp_capable(hdev);
+
+		/* Set up ISO interface after protocol enabled */
+		if (btmtk_test_flag(hdev, BTMTK_ISOPKT_OVER_INTR)) {
+			btmtk_isointf_setup(hdev);
+			btmtk_set_flag(data->hdev, BTMTK_ISOPKT_RUNNING);
+		}
+
 		goto done;
 	default:
 		bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
@@ -3321,6 +3569,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
 static int btusb_mtk_shutdown(struct hci_dev *hdev)
 {
 	struct btmtk_hci_wmt_params wmt_params;
+	struct btmediatek_data *btmtk_data = hci_get_priv(hdev);
 	u8 param = 0;
 	int err;
 
@@ -3337,6 +3586,21 @@ static int btusb_mtk_shutdown(struct hci_dev *hdev)
 		return err;
 	}
 
+	if (btmtk_test_flag(hdev, BTMTK_ISOPKT_RUNNING)) {
+		btusb_mtk_isopkt_stop(hdev);
+		btmtk_clear_flag(hdev, BTMTK_ISOPKT_RUNNING);
+
+		if (btmtk_data->isopkt_info.isopkt_intf) {
+			usb_set_intfdata(btmtk_data->isopkt_info.isopkt_intf, NULL);
+			usb_driver_release_interface(&btusb_driver,
+						     btmtk_data->isopkt_info.isopkt_intf);
+			dev_kfree_skb_irq(btmtk_data->isopkt_info.isopkt_skb);
+			btmtk_data->isopkt_info.isopkt_skb = NULL;
+
+			btmtk_clear_flag(hdev, BTMTK_ISOPKT_OVER_INTR);
+		}
+	}
+
 	return 0;
 }
 
@@ -4475,9 +4739,12 @@ static int btusb_probe(struct usb_interface *intf,
 		hdev->manufacturer = 70;
 		hdev->cmd_timeout = btmtk_reset_sync;
 		hdev->set_bdaddr = btmtk_set_bdaddr;
+		hdev->send = btusb_send_frame_mtk;
 		set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
 		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
 		data->recv_acl = btusb_recv_acl_mtk;
+		data->dev_suspend = btusb_mtk_isopkt_stop;
+		data->dev_resume = btusb_mtk_isopkt_start;
 	}
 
 	if (id->driver_info & BTUSB_SWAVE) {
