diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
index f01a3988538c7..37a65badb448a 100644
--- a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
+++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
@@ -31,6 +31,9 @@ properties:
       This property depends on the module vendor's
       configuration.
 
+  firmware-name:
+    maxItems: 1
+
 required:
   - compatible
 
@@ -42,5 +45,6 @@ examples:
         bluetooth {
             compatible = "nxp,88w8987-bt";
             fw-init-baudrate = <3000000>;
+            firmware-name = "uartuart8987_bt_v0.bin";
         };
     };
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 0b5f218ac5058..87484f5de8e32 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -287,12 +287,12 @@ config BT_HCIBCM203X
 
 
 config BT_HCIBCM4377
-	tristate "HCI BCM4377/4378/4387 PCIe driver"
+	tristate "HCI BCM4377/4378/4387/4388 PCIe driver"
 	depends on PCI
 	select FW_LOADER
 	help
-	  Support for Broadcom BCM4377/4378/4387 Bluetooth chipsets attached via
-	  PCIe. These are usually found in Apple machines.
+	  Support for Broadcom BCM4377/4378/4387/4388 Bluetooth chipsets
+	  attached via PCIe. These are usually found in Apple machines.
 
 	  Say Y here to compile support for HCI BCM4377 family devices into the
 	  kernel or say M to compile it as module (hci_bcm4377).
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index 0c855c3ee1c1c..ff33e1aa29298 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -26,21 +26,11 @@
 #define ECDSA_OFFSET		644
 #define ECDSA_HEADER_LEN	320
 
-#define BTINTEL_PPAG_NAME   "PPAG"
-
 enum {
 	DSM_SET_WDISABLE2_DELAY = 1,
 	DSM_SET_RESET_METHOD = 3,
 };
 
-/* structure to store the PPAG data read from ACPI table */
-struct btintel_ppag {
-	u32	domain;
-	u32     mode;
-	acpi_status status;
-	struct hci_dev *hdev;
-};
-
 #define CMD_WRITE_BOOT_PARAMS	0xfc0e
 struct cmd_write_boot_params {
 	__le32 boot_addr;
@@ -1324,65 +1314,6 @@ static int btintel_read_debug_features(struct hci_dev *hdev,
 	return 0;
 }
 
-static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data,
-					 void **ret)
-{
-	acpi_status status;
-	size_t len;
-	struct btintel_ppag *ppag = data;
-	union acpi_object *p, *elements;
-	struct acpi_buffer string = {ACPI_ALLOCATE_BUFFER, NULL};
-	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
-	struct hci_dev *hdev = ppag->hdev;
-
-	status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
-	if (ACPI_FAILURE(status)) {
-		bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
-		return status;
-	}
-
-	len = strlen(string.pointer);
-	if (len < strlen(BTINTEL_PPAG_NAME)) {
-		kfree(string.pointer);
-		return AE_OK;
-	}
-
-	if (strncmp((char *)string.pointer + len - 4, BTINTEL_PPAG_NAME, 4)) {
-		kfree(string.pointer);
-		return AE_OK;
-	}
-	kfree(string.pointer);
-
-	status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
-	if (ACPI_FAILURE(status)) {
-		ppag->status = status;
-		bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
-		return status;
-	}
-
-	p = buffer.pointer;
-	ppag = (struct btintel_ppag *)data;
-
-	if (p->type != ACPI_TYPE_PACKAGE || p->package.count != 2) {
-		kfree(buffer.pointer);
-		bt_dev_warn(hdev, "PPAG-BT: Invalid object type: %d or package count: %d",
-			    p->type, p->package.count);
-		ppag->status = AE_ERROR;
-		return AE_ERROR;
-	}
-
-	elements = p->package.elements;
-
-	/* PPAG table is located at element[1] */
-	p = &elements[1];
-
-	ppag->domain = (u32)p->package.elements[0].integer.value;
-	ppag->mode = (u32)p->package.elements[1].integer.value;
-	ppag->status = AE_OK;
-	kfree(buffer.pointer);
-	return AE_CTRL_TERMINATE;
-}
-
 static int btintel_set_debug_features(struct hci_dev *hdev,
 			       const struct intel_debug_features *features)
 {
@@ -2427,10 +2358,13 @@ static int btintel_configure_offload(struct hci_dev *hdev)
 
 static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver)
 {
-	struct btintel_ppag ppag;
 	struct sk_buff *skb;
 	struct hci_ppag_enable_cmd ppag_cmd;
 	acpi_handle handle;
+	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+	union acpi_object *p, *elements;
+	u32 domain, mode;
+	acpi_status status;
 
 	/* PPAG is not supported if CRF is HrP2, Jfp2, JfP1 */
 	switch (ver->cnvr_top & 0xFFF) {
@@ -2448,22 +2382,34 @@ static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver
 		return;
 	}
 
-	memset(&ppag, 0, sizeof(ppag));
-
-	ppag.hdev = hdev;
-	ppag.status = AE_NOT_FOUND;
-	acpi_walk_namespace(ACPI_TYPE_PACKAGE, handle, 1, NULL,
-			    btintel_ppag_callback, &ppag, NULL);
-
-	if (ACPI_FAILURE(ppag.status)) {
-		if (ppag.status == AE_NOT_FOUND) {
+	status = acpi_evaluate_object(handle, "PPAG", NULL, &buffer);
+	if (ACPI_FAILURE(status)) {
+		if (status == AE_NOT_FOUND) {
 			bt_dev_dbg(hdev, "PPAG-BT: ACPI entry not found");
 			return;
 		}
+		bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
 		return;
 	}
 
-	if (ppag.domain != 0x12) {
+	p = buffer.pointer;
+	if (p->type != ACPI_TYPE_PACKAGE || p->package.count != 2) {
+		bt_dev_warn(hdev, "PPAG-BT: Invalid object type: %d or package count: %d",
+			    p->type, p->package.count);
+		kfree(buffer.pointer);
+		return;
+	}
+
+	elements = p->package.elements;
+
+	/* PPAG table is located at element[1] */
+	p = &elements[1];
+
+	domain = (u32)p->package.elements[0].integer.value;
+	mode = (u32)p->package.elements[1].integer.value;
+	kfree(buffer.pointer);
+
+	if (domain != 0x12) {
 		bt_dev_dbg(hdev, "PPAG-BT: Bluetooth domain is disabled in ACPI firmware");
 		return;
 	}
@@ -2474,19 +2420,22 @@ static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver
 	 * BIT 1 : 0 Disabled in China
 	 *         1 Enabled in China
 	 */
-	if ((ppag.mode & 0x01) != BIT(0) && (ppag.mode & 0x02) != BIT(1)) {
-		bt_dev_dbg(hdev, "PPAG-BT: EU, China mode are disabled in CB/BIOS");
+	mode &= 0x03;
+
+	if (!mode) {
+		bt_dev_dbg(hdev, "PPAG-BT: EU, China mode are disabled in BIOS");
 		return;
 	}
 
-	ppag_cmd.ppag_enable_flags = cpu_to_le32(ppag.mode);
+	ppag_cmd.ppag_enable_flags = cpu_to_le32(mode);
 
-	skb = __hci_cmd_sync(hdev, INTEL_OP_PPAG_CMD, sizeof(ppag_cmd), &ppag_cmd, HCI_CMD_TIMEOUT);
+	skb = __hci_cmd_sync(hdev, INTEL_OP_PPAG_CMD, sizeof(ppag_cmd),
+			     &ppag_cmd, HCI_CMD_TIMEOUT);
 	if (IS_ERR(skb)) {
 		bt_dev_warn(hdev, "Failed to send PPAG Enable (%ld)", PTR_ERR(skb));
 		return;
 	}
-	bt_dev_info(hdev, "PPAG-BT: Enabled (Mode %d)", ppag.mode);
+	bt_dev_info(hdev, "PPAG-BT: Enabled (Mode %d)", mode);
 	kfree_skb(skb);
 }
 
@@ -2600,6 +2549,24 @@ static void btintel_set_dsm_reset_method(struct hci_dev *hdev,
 	data->acpi_reset_method = btintel_acpi_reset_method;
 }
 
+#define BTINTEL_ISODATA_HANDLE_BASE 0x900
+
+static u8 btintel_classify_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	/*
+	 * Distinguish ISO data packets form ACL data packets
+	 * based on their connection handle value range.
+	 */
+	if (hci_skb_pkt_type(skb) == HCI_ACLDATA_PKT) {
+		__u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle);
+
+		if (hci_handle(handle) >= BTINTEL_ISODATA_HANDLE_BASE)
+			return HCI_ISODATA_PKT;
+	}
+
+	return hci_skb_pkt_type(skb);
+}
+
 int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
 				 struct intel_version_tlv *ver)
 {
@@ -2713,7 +2680,7 @@ void btintel_set_msft_opcode(struct hci_dev *hdev, u8 hw_variant)
 }
 EXPORT_SYMBOL_GPL(btintel_set_msft_opcode);
 
-static void btintel_print_fseq_info(struct hci_dev *hdev)
+void btintel_print_fseq_info(struct hci_dev *hdev)
 {
 	struct sk_buff *skb;
 	u8 *p;
@@ -2825,6 +2792,7 @@ static void btintel_print_fseq_info(struct hci_dev *hdev)
 
 	kfree_skb(skb);
 }
+EXPORT_SYMBOL_GPL(btintel_print_fseq_info);
 
 static int btintel_setup_combined(struct hci_dev *hdev)
 {
@@ -3039,11 +3007,14 @@ static int btintel_setup_combined(struct hci_dev *hdev)
 		err = btintel_bootloader_setup(hdev, &ver);
 		btintel_register_devcoredump_support(hdev);
 		break;
+	case 0x18: /* GfP2 */
+	case 0x1c: /* GaP */
+		/* Re-classify packet type for controllers with LE audio */
+		hdev->classify_pkt_type = btintel_classify_pkt_type;
+		fallthrough;
 	case 0x17:
-	case 0x18:
 	case 0x19:
 	case 0x1b:
-	case 0x1c:
 	case 0x1e:
 		/* Display version information of TLV type */
 		btintel_version_info_tlv(hdev, &ver_tlv);
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index b5fea735e260d..9dbad1a7c47cd 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -244,6 +244,7 @@ int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
 				 struct intel_version_tlv *ver);
 int btintel_shutdown_combined(struct hci_dev *hdev);
 void btintel_hw_error(struct hci_dev *hdev, u8 code);
+void btintel_print_fseq_info(struct hci_dev *hdev);
 #else
 
 static inline int btintel_check_bdaddr(struct hci_dev *hdev)
@@ -373,4 +374,8 @@ static inline int btintel_shutdown_combined(struct hci_dev *hdev)
 static inline void btintel_hw_error(struct hci_dev *hdev, u8 code)
 {
 }
+
+static inline void btintel_print_fseq_info(struct hci_dev *hdev)
+{
+}
 #endif
diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c
index 5b6805d87fcff..0d1a0415557b2 100644
--- a/drivers/bluetooth/btintel_pcie.c
+++ b/drivers/bluetooth/btintel_pcie.c
@@ -382,7 +382,7 @@ static int btintel_pcie_recv_frame(struct btintel_pcie_data *data,
 
 	/* The first 4 bytes indicates the Intel PCIe specific packet type */
 	pdata = skb_pull_data(skb, BTINTEL_PCIE_HCI_TYPE_LEN);
-	if (!data) {
+	if (!pdata) {
 		bt_dev_err(hdev, "Corrupted packet received");
 		ret = -EILSEQ;
 		goto exit_error;
@@ -797,7 +797,6 @@ static int btintel_pcie_setup_txq_bufs(struct btintel_pcie_data *data,
 		kfree(txq->bufs);
 		return -ENOMEM;
 	}
-	memset(txq->buf_v_addr, 0, txq->count * BTINTEL_PCIE_BUFFER_SIZE);
 
 	/* Setup the allocated DMA buffer to bufs. Each data_buf should
 	 * have virtual address and physical address
@@ -842,7 +841,6 @@ static int btintel_pcie_setup_rxq_bufs(struct btintel_pcie_data *data,
 		kfree(rxq->bufs);
 		return -ENOMEM;
 	}
-	memset(rxq->buf_v_addr, 0, rxq->count * BTINTEL_PCIE_BUFFER_SIZE);
 
 	/* Setup the allocated DMA buffer to bufs. Each data_buf should
 	 * have virtual address and physical address
@@ -1197,9 +1195,11 @@ static int btintel_pcie_setup(struct hci_dev *hdev)
 		bt_dev_err(hdev, "Unsupported Intel hw variant (%u)",
 			   INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
 		err = -EINVAL;
+		goto exit_error;
 		break;
 	}
 
+	btintel_print_fseq_info(hdev);
 exit_error:
 	kfree_skb(skb);
 
@@ -1327,6 +1327,12 @@ static void btintel_pcie_remove(struct pci_dev *pdev)
 	data = pci_get_drvdata(pdev);
 
 	btintel_pcie_reset_bt(data);
+	for (int i = 0; i < data->alloc_vecs; i++) {
+		struct msix_entry *msix_entry;
+
+		msix_entry = &data->msix_entries[i];
+		free_irq(msix_entry->vector, msix_entry);
+	}
 
 	pci_free_irq_vectors(pdev);
 
diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index 812fd2a8f853e..a27c251bf56e4 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -103,6 +103,24 @@ static void btmtk_coredump_notify(struct hci_dev *hdev, int state)
 	}
 }
 
+void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver,
+			   u32 fw_flavor)
+{
+	if (dev_id == 0x7925)
+		snprintf(buf, size,
+			 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
+			 dev_id & 0xffff, dev_id & 0xffff, (fw_ver & 0xff) + 1);
+	else if (dev_id == 0x7961 && fw_flavor)
+		snprintf(buf, size,
+			 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
+			 dev_id & 0xffff, (fw_ver & 0xff) + 1);
+	else
+		snprintf(buf, size,
+			 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
+			 dev_id & 0xffff, (fw_ver & 0xff) + 1);
+}
+EXPORT_SYMBOL_GPL(btmtk_fw_get_filename);
+
 int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
 			      wmt_cmd_sync_func_t wmt_cmd_sync)
 {
diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
index cbcdb99a22e6d..e76b8a358be88 100644
--- a/drivers/bluetooth/btmtk.h
+++ b/drivers/bluetooth/btmtk.h
@@ -160,6 +160,9 @@ int btmtk_register_coredump(struct hci_dev *hdev, const char *name,
 			    u32 fw_version);
 
 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);
 #else
 
 static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
@@ -194,4 +197,9 @@ static int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	return -EOPNOTSUPP;
 }
+
+static void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id,
+				  u32 fw_ver, u32 fw_flavor)
+{
+}
 #endif
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 8ded9ef8089a2..b4e560a17aa68 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1117,6 +1117,9 @@ static int btmtksdio_setup(struct hci_dev *hdev)
 			return err;
 		}
 
+		btmtk_fw_get_filename(fwname, sizeof(fwname), dev_id,
+				      fw_version, 0);
+
 		snprintf(fwname, sizeof(fwname),
 			 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
 			 dev_id & 0xffff, (fw_version & 0xff) + 1);
diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c
index 9d0c7e278114b..da18fd4f54f37 100644
--- a/drivers/bluetooth/btnxpuart.c
+++ b/drivers/bluetooth/btnxpuart.c
@@ -29,20 +29,24 @@
 #define BTNXPUART_CHECK_BOOT_SIGNATURE	3
 #define BTNXPUART_SERDEV_OPEN		4
 #define BTNXPUART_IR_IN_PROGRESS	5
+#define BTNXPUART_FW_DOWNLOAD_ABORT	6
 
 /* NXP HW err codes */
 #define BTNXPUART_IR_HW_ERR		0xb0
 
-#define FIRMWARE_W8987		"nxp/uartuart8987_bt.bin"
-#define FIRMWARE_W8997		"nxp/uartuart8997_bt_v4.bin"
-#define FIRMWARE_W9098		"nxp/uartuart9098_bt_v1.bin"
-#define FIRMWARE_IW416		"nxp/uartiw416_bt_v0.bin"
-#define FIRMWARE_IW612		"nxp/uartspi_n61x_v1.bin.se"
-#define FIRMWARE_IW624		"nxp/uartiw624_bt.bin"
-#define FIRMWARE_SECURE_IW624	"nxp/uartiw624_bt.bin.se"
-#define FIRMWARE_AW693		"nxp/uartaw693_bt.bin"
-#define FIRMWARE_SECURE_AW693	"nxp/uartaw693_bt.bin.se"
-#define FIRMWARE_HELPER		"nxp/helper_uart_3000000.bin"
+#define FIRMWARE_W8987		"uart8987_bt_v0.bin"
+#define FIRMWARE_W8987_OLD	"uartuart8987_bt.bin"
+#define FIRMWARE_W8997		"uart8997_bt_v4.bin"
+#define FIRMWARE_W8997_OLD	"uartuart8997_bt_v4.bin"
+#define FIRMWARE_W9098		"uart9098_bt_v1.bin"
+#define FIRMWARE_W9098_OLD	"uartuart9098_bt_v1.bin"
+#define FIRMWARE_IW416		"uartiw416_bt_v0.bin"
+#define FIRMWARE_IW612		"uartspi_n61x_v1.bin.se"
+#define FIRMWARE_IW624		"uartiw624_bt.bin"
+#define FIRMWARE_SECURE_IW624	"uartiw624_bt.bin.se"
+#define FIRMWARE_AW693		"uartaw693_bt.bin"
+#define FIRMWARE_SECURE_AW693	"uartaw693_bt.bin.se"
+#define FIRMWARE_HELPER		"helper_uart_3000000.bin"
 
 #define CHIP_ID_W9098		0x5c03
 #define CHIP_ID_IW416		0x7201
@@ -144,6 +148,7 @@ struct psmode_cmd_payload {
 struct btnxpuart_data {
 	const char *helper_fw_name;
 	const char *fw_name;
+	const char *fw_name_old;
 };
 
 struct btnxpuart_dev {
@@ -159,6 +164,7 @@ struct btnxpuart_dev {
 	u8 fw_name[MAX_FW_FILE_NAME_LEN];
 	u32 fw_dnld_v1_offset;
 	u32 fw_v1_sent_bytes;
+	u32 fw_dnld_v3_offset;
 	u32 fw_v3_offset_correction;
 	u32 fw_v1_expected_len;
 	u32 boot_reg_offset;
@@ -187,6 +193,11 @@ struct btnxpuart_dev {
 #define NXP_NAK_V3		0x7b
 #define NXP_CRC_ERROR_V3	0x7c
 
+/* Bootloader signature error codes */
+#define NXP_ACK_RX_TIMEOUT	0x0002	/* ACK not received from host */
+#define NXP_HDR_RX_TIMEOUT	0x0003	/* FW Header chunk not received */
+#define NXP_DATA_RX_TIMEOUT	0x0004	/* FW Data chunk not received */
+
 #define HDR_LEN			16
 
 #define NXP_RECV_CHIP_VER_V1 \
@@ -277,11 +288,22 @@ struct nxp_bootloader_cmd {
 	__be32 crc;
 } __packed;
 
+struct nxp_v3_rx_timeout_nak {
+	u8 nak;
+	__le32 offset;
+	u8 crc;
+} __packed;
+
+union nxp_v3_rx_timeout_nak_u {
+	struct nxp_v3_rx_timeout_nak pkt;
+	u8 buf[6];
+};
+
 static u8 crc8_table[CRC8_TABLE_SIZE];
 
 /* Default configurations */
 #define DEFAULT_H2C_WAKEUP_MODE	WAKEUP_METHOD_BREAK
-#define DEFAULT_PS_MODE		PS_MODE_DISABLE
+#define DEFAULT_PS_MODE		PS_MODE_ENABLE
 #define FW_INIT_BAUDRATE	HCI_NXP_PRI_BAUDRATE
 
 static struct sk_buff *nxp_drv_send_cmd(struct hci_dev *hdev, u16 opcode,
@@ -328,7 +350,7 @@ static void ps_cancel_timer(struct btnxpuart_dev *nxpdev)
 	struct ps_data *psdata = &nxpdev->psdata;
 
 	flush_work(&psdata->work);
-	del_timer_sync(&psdata->ps_timer);
+	timer_shutdown_sync(&psdata->ps_timer);
 }
 
 static void ps_control(struct hci_dev *hdev, u8 ps_state)
@@ -550,6 +572,7 @@ static int nxp_download_firmware(struct hci_dev *hdev)
 	nxpdev->fw_v1_sent_bytes = 0;
 	nxpdev->fw_v1_expected_len = HDR_LEN;
 	nxpdev->boot_reg_offset = 0;
+	nxpdev->fw_dnld_v3_offset = 0;
 	nxpdev->fw_v3_offset_correction = 0;
 	nxpdev->baudrate_changed = false;
 	nxpdev->timeout_changed = false;
@@ -564,14 +587,23 @@ static int nxp_download_firmware(struct hci_dev *hdev)
 					       !test_bit(BTNXPUART_FW_DOWNLOADING,
 							 &nxpdev->tx_state),
 					       msecs_to_jiffies(60000));
+
+	release_firmware(nxpdev->fw);
+	memset(nxpdev->fw_name, 0, sizeof(nxpdev->fw_name));
+
 	if (err == 0) {
-		bt_dev_err(hdev, "FW Download Timeout.");
+		bt_dev_err(hdev, "FW Download Timeout. offset: %d",
+				nxpdev->fw_dnld_v1_offset ?
+				nxpdev->fw_dnld_v1_offset :
+				nxpdev->fw_dnld_v3_offset);
 		return -ETIMEDOUT;
 	}
+	if (test_bit(BTNXPUART_FW_DOWNLOAD_ABORT, &nxpdev->tx_state)) {
+		bt_dev_err(hdev, "FW Download Aborted");
+		return -EINTR;
+	}
 
 	serdev_device_set_flow_control(nxpdev->serdev, true);
-	release_firmware(nxpdev->fw);
-	memset(nxpdev->fw_name, 0, sizeof(nxpdev->fw_name));
 
 	/* Allow the downloaded FW to initialize */
 	msleep(1200);
@@ -682,19 +714,30 @@ static bool process_boot_signature(struct btnxpuart_dev *nxpdev)
 	return is_fw_downloading(nxpdev);
 }
 
-static int nxp_request_firmware(struct hci_dev *hdev, const char *fw_name)
+static int nxp_request_firmware(struct hci_dev *hdev, const char *fw_name,
+				const char *fw_name_old)
 {
 	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
+	const char *fw_name_dt;
 	int err = 0;
 
 	if (!fw_name)
 		return -ENOENT;
 
 	if (!strlen(nxpdev->fw_name)) {
-		snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "%s", fw_name);
+		if (strcmp(fw_name, FIRMWARE_HELPER) &&
+		    !device_property_read_string(&nxpdev->serdev->dev,
+						 "firmware-name",
+						 &fw_name_dt))
+			fw_name = fw_name_dt;
+		snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "nxp/%s", fw_name);
+		err = request_firmware_direct(&nxpdev->fw, nxpdev->fw_name, &hdev->dev);
+		if (err < 0 && fw_name_old) {
+			snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "nxp/%s", fw_name_old);
+			err = request_firmware_direct(&nxpdev->fw, nxpdev->fw_name, &hdev->dev);
+		}
 
-		bt_dev_dbg(hdev, "Request Firmware: %s", nxpdev->fw_name);
-		err = request_firmware(&nxpdev->fw, nxpdev->fw_name, &hdev->dev);
+		bt_dev_info(hdev, "Request Firmware: %s", nxpdev->fw_name);
 		if (err < 0) {
 			bt_dev_err(hdev, "Firmware file %s not found", nxpdev->fw_name);
 			clear_bit(BTNXPUART_FW_DOWNLOADING, &nxpdev->tx_state);
@@ -773,15 +816,15 @@ static int nxp_recv_fw_req_v1(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 
 	if (!nxp_data->helper_fw_name || nxpdev->helper_downloaded) {
-		if (nxp_request_firmware(hdev, nxp_data->fw_name))
+		if (nxp_request_firmware(hdev, nxp_data->fw_name, nxp_data->fw_name_old))
 			goto free_skb;
 	} else if (nxp_data->helper_fw_name && !nxpdev->helper_downloaded) {
-		if (nxp_request_firmware(hdev, nxp_data->helper_fw_name))
+		if (nxp_request_firmware(hdev, nxp_data->helper_fw_name, NULL))
 			goto free_skb;
 	}
 
 	if (!len) {
-		bt_dev_dbg(hdev, "FW Downloaded Successfully: %zu bytes",
+		bt_dev_info(hdev, "FW Download Complete: %zu bytes",
 			   nxpdev->fw->size);
 		if (nxp_data->helper_fw_name && !nxpdev->helper_downloaded) {
 			nxpdev->helper_downloaded = true;
@@ -878,10 +921,25 @@ static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
 	return fw_name;
 }
 
+static char *nxp_get_old_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
+					 u8 loader_ver)
+{
+	char *fw_name_old = NULL;
+
+	switch (chipid) {
+	case CHIP_ID_W9098:
+		fw_name_old = FIRMWARE_W9098_OLD;
+		break;
+	}
+	return fw_name_old;
+}
+
 static int nxp_recv_chip_ver_v3(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct v3_start_ind *req = skb_pull_data(skb, sizeof(*req));
 	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
+	const char *fw_name;
+	const char *fw_name_old;
 	u16 chip_id;
 	u8 loader_ver;
 
@@ -890,8 +948,10 @@ static int nxp_recv_chip_ver_v3(struct hci_dev *hdev, struct sk_buff *skb)
 
 	chip_id = le16_to_cpu(req->chip_id);
 	loader_ver = req->loader_ver;
-	if (!nxp_request_firmware(hdev, nxp_get_fw_name_from_chipid(hdev,
-								    chip_id, loader_ver)))
+	bt_dev_info(hdev, "ChipID: %04x, Version: %d", chip_id, loader_ver);
+	fw_name = nxp_get_fw_name_from_chipid(hdev, chip_id, loader_ver);
+	fw_name_old = nxp_get_old_fw_name_from_chipid(hdev, chip_id, loader_ver);
+	if (!nxp_request_firmware(hdev, fw_name, fw_name_old))
 		nxp_send_ack(NXP_ACK_V3, hdev);
 
 free_skb:
@@ -899,6 +959,32 @@ static int nxp_recv_chip_ver_v3(struct hci_dev *hdev, struct sk_buff *skb)
 	return 0;
 }
 
+static void nxp_handle_fw_download_error(struct hci_dev *hdev, struct v3_data_req *req)
+{
+	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
+	__u32 offset = __le32_to_cpu(req->offset);
+	__u16 err = __le16_to_cpu(req->error);
+	union nxp_v3_rx_timeout_nak_u nak_tx_buf;
+
+	switch (err) {
+	case NXP_ACK_RX_TIMEOUT:
+	case NXP_HDR_RX_TIMEOUT:
+	case NXP_DATA_RX_TIMEOUT:
+		nak_tx_buf.pkt.nak = NXP_NAK_V3;
+		nak_tx_buf.pkt.offset = __cpu_to_le32(offset);
+		nak_tx_buf.pkt.crc = crc8(crc8_table, nak_tx_buf.buf,
+				      sizeof(nak_tx_buf) - 1, 0xff);
+		serdev_device_write_buf(nxpdev->serdev, nak_tx_buf.buf,
+					sizeof(nak_tx_buf));
+		break;
+	default:
+		bt_dev_dbg(hdev, "Unknown bootloader error code: %d", err);
+		break;
+
+	}
+
+}
+
 static int nxp_recv_fw_req_v3(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
@@ -913,7 +999,12 @@ static int nxp_recv_fw_req_v3(struct hci_dev *hdev, struct sk_buff *skb)
 	if (!req || !nxpdev->fw)
 		goto free_skb;
 
-	nxp_send_ack(NXP_ACK_V3, hdev);
+	if (!req->error) {
+		nxp_send_ack(NXP_ACK_V3, hdev);
+	} else {
+		nxp_handle_fw_download_error(hdev, req);
+		goto free_skb;
+	}
 
 	len = __le16_to_cpu(req->len);
 
@@ -934,15 +1025,12 @@ static int nxp_recv_fw_req_v3(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 
 	if (req->len == 0) {
-		bt_dev_dbg(hdev, "FW Downloaded Successfully: %zu bytes",
+		bt_dev_info(hdev, "FW Download Complete: %zu bytes",
 			   nxpdev->fw->size);
 		clear_bit(BTNXPUART_FW_DOWNLOADING, &nxpdev->tx_state);
 		wake_up_interruptible(&nxpdev->fw_dnld_done_wait_q);
 		goto free_skb;
 	}
-	if (req->error)
-		bt_dev_dbg(hdev, "FW Download received err 0x%02x from chip",
-			   req->error);
 
 	offset = __le32_to_cpu(req->offset);
 	if (offset < nxpdev->fw_v3_offset_correction) {
@@ -954,8 +1042,9 @@ static int nxp_recv_fw_req_v3(struct hci_dev *hdev, struct sk_buff *skb)
 		goto free_skb;
 	}
 
-	serdev_device_write_buf(nxpdev->serdev, nxpdev->fw->data + offset -
-				nxpdev->fw_v3_offset_correction, len);
+	nxpdev->fw_dnld_v3_offset = offset - nxpdev->fw_v3_offset_correction;
+	serdev_device_write_buf(nxpdev->serdev, nxpdev->fw->data +
+				nxpdev->fw_dnld_v3_offset, len);
 
 free_skb:
 	kfree_skb(skb);
@@ -1037,7 +1126,7 @@ static int nxp_setup(struct hci_dev *hdev)
 		if (err < 0)
 			return err;
 	} else {
-		bt_dev_dbg(hdev, "FW already running.");
+		bt_dev_info(hdev, "FW already running.");
 		clear_bit(BTNXPUART_FW_DOWNLOADING, &nxpdev->tx_state);
 	}
 
@@ -1253,8 +1342,10 @@ static int btnxpuart_close(struct hci_dev *hdev)
 	ps_wakeup(nxpdev);
 	serdev_device_close(nxpdev->serdev);
 	skb_queue_purge(&nxpdev->txq);
-	kfree_skb(nxpdev->rx_skb);
-	nxpdev->rx_skb = NULL;
+	if (!IS_ERR_OR_NULL(nxpdev->rx_skb)) {
+		kfree_skb(nxpdev->rx_skb);
+		nxpdev->rx_skb = NULL;
+	}
 	clear_bit(BTNXPUART_SERDEV_OPEN, &nxpdev->tx_state);
 	return 0;
 }
@@ -1269,8 +1360,10 @@ static int btnxpuart_flush(struct hci_dev *hdev)
 
 	cancel_work_sync(&nxpdev->tx_work);
 
-	kfree_skb(nxpdev->rx_skb);
-	nxpdev->rx_skb = NULL;
+	if (!IS_ERR_OR_NULL(nxpdev->rx_skb)) {
+		kfree_skb(nxpdev->rx_skb);
+		nxpdev->rx_skb = NULL;
+	}
 
 	return 0;
 }
@@ -1385,16 +1478,22 @@ static void nxp_serdev_remove(struct serdev_device *serdev)
 	struct btnxpuart_dev *nxpdev = serdev_device_get_drvdata(serdev);
 	struct hci_dev *hdev = nxpdev->hdev;
 
-	/* Restore FW baudrate to fw_init_baudrate if changed.
-	 * This will ensure FW baudrate is in sync with
-	 * driver baudrate in case this driver is re-inserted.
-	 */
-	if (nxpdev->current_baudrate != nxpdev->fw_init_baudrate) {
-		nxpdev->new_baudrate = nxpdev->fw_init_baudrate;
-		nxp_set_baudrate_cmd(hdev, NULL);
+	if (is_fw_downloading(nxpdev)) {
+		set_bit(BTNXPUART_FW_DOWNLOAD_ABORT, &nxpdev->tx_state);
+		clear_bit(BTNXPUART_FW_DOWNLOADING, &nxpdev->tx_state);
+		wake_up_interruptible(&nxpdev->check_boot_sign_wait_q);
+		wake_up_interruptible(&nxpdev->fw_dnld_done_wait_q);
+	} else {
+		/* Restore FW baudrate to fw_init_baudrate if changed.
+		 * This will ensure FW baudrate is in sync with
+		 * driver baudrate in case this driver is re-inserted.
+		 */
+		if (nxpdev->current_baudrate != nxpdev->fw_init_baudrate) {
+			nxpdev->new_baudrate = nxpdev->fw_init_baudrate;
+			nxp_set_baudrate_cmd(hdev, NULL);
+		}
+		ps_cancel_timer(nxpdev);
 	}
-
-	ps_cancel_timer(nxpdev);
 	hci_unregister_dev(hdev);
 	hci_free_dev(hdev);
 }
@@ -1402,11 +1501,13 @@ static void nxp_serdev_remove(struct serdev_device *serdev)
 static struct btnxpuart_data w8987_data __maybe_unused = {
 	.helper_fw_name = NULL,
 	.fw_name = FIRMWARE_W8987,
+	.fw_name_old = FIRMWARE_W8987_OLD,
 };
 
 static struct btnxpuart_data w8997_data __maybe_unused = {
 	.helper_fw_name = FIRMWARE_HELPER,
 	.fw_name = FIRMWARE_W8997,
+	.fw_name_old = FIRMWARE_W8997_OLD,
 };
 
 static const struct of_device_id nxpuart_of_match_table[] __maybe_unused = {
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 4f1e37b4f7802..f2f37143c454d 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -811,7 +811,7 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 	struct sk_buff *skb;
 	struct hci_rp_read_local_version *rp;
 
-	dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
+	dl_cmd = kmalloc(sizeof(*dl_cmd), GFP_KERNEL);
 	if (!dl_cmd)
 		return -ENOMEM;
 
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e384ef6ff050d..79aefdb3324d0 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3033,28 +3033,22 @@ static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
 	return val & MTK_BT_RST_DONE;
 }
 
-static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
+static int btusb_mtk_subsys_reset(struct hci_dev *hdev, u32 dev_id)
 {
 	struct btusb_data *data = hci_get_drvdata(hdev);
-	struct btmediatek_data *mediatek;
 	u32 val;
 	int err;
 
-	/* It's MediaTek specific bluetooth reset mechanism via USB */
-	if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
-		bt_dev_err(hdev, "last reset failed? Not resetting again");
-		return -EBUSY;
-	}
-
-	err = usb_autopm_get_interface(data->intf);
-	if (err < 0)
-		return err;
-
-	btusb_stop_traffic(data);
-	usb_kill_anchored_urbs(&data->tx_anchor);
-	mediatek = hci_get_priv(hdev);
-
-	if (mediatek->dev_id == 0x7925) {
+	if (dev_id == 0x7922) {
+		btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
+		val |= 0x00002020;
+		btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val);
+		btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
+		btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
+		val |= BIT(0);
+		btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val);
+		msleep(100);
+	} else if (dev_id == 0x7925) {
 		btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
 		val |= (1 << 5);
 		btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
@@ -3094,12 +3088,39 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
 	if (err < 0)
 		bt_dev_err(hdev, "Reset timeout");
 
+	if (dev_id == 0x7922)
+		btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
+
 	btusb_mtk_id_get(data, 0x70010200, &val);
 	if (!val)
 		bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
 
-	usb_queue_reset_device(data->intf);
+	return err;
+}
 
+static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
+{
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	struct btmediatek_data *mtk_data;
+	int err;
+
+	/* It's MediaTek specific bluetooth reset mechanism via USB */
+	if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+		bt_dev_err(hdev, "last reset failed? Not resetting again");
+		return -EBUSY;
+	}
+
+	err = usb_autopm_get_interface(data->intf);
+	if (err < 0)
+		return err;
+
+	btusb_stop_traffic(data);
+	usb_kill_anchored_urbs(&data->tx_anchor);
+	mtk_data = hci_get_priv(hdev);
+
+	err = btusb_mtk_subsys_reset(hdev, mtk_data->dev_id);
+
+	usb_queue_reset_device(data->intf);
 	clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
 
 	return err;
@@ -3166,26 +3187,26 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
 	case 0x7922:
 	case 0x7961:
 	case 0x7925:
-		if (dev_id == 0x7925)
-			snprintf(fw_bin_name, sizeof(fw_bin_name),
-				 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
-				 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
-		else if (dev_id == 0x7961 && fw_flavor)
-			snprintf(fw_bin_name, sizeof(fw_bin_name),
-				 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
-				 dev_id & 0xffff, (fw_version & 0xff) + 1);
-		else
-			snprintf(fw_bin_name, sizeof(fw_bin_name),
-				 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
-				 dev_id & 0xffff, (fw_version & 0xff) + 1);
+		/* Reset the device to ensure it's in the initial state before
+		 * downloading the firmware to ensure.
+		 */
+
+		if (!test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
+			btusb_mtk_subsys_reset(hdev, dev_id);
+
+		btmtk_fw_get_filename(fw_bin_name, sizeof(fw_bin_name), dev_id,
+				      fw_version, fw_flavor);
 
 		err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
 						btusb_mtk_hci_wmt_sync);
 		if (err < 0) {
 			bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
+			clear_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
 			return err;
 		}
 
+		set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
+
 		/* It's Device EndPoint Reset Option Register */
 		btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
 
diff --git a/drivers/bluetooth/hci_bcm4377.c b/drivers/bluetooth/hci_bcm4377.c
index 0c2f15235b4cd..77a5454a8721e 100644
--- a/drivers/bluetooth/hci_bcm4377.c
+++ b/drivers/bluetooth/hci_bcm4377.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only OR MIT
 /*
- * Bluetooth HCI driver for Broadcom 4377/4378/4387 devices attached via PCIe
+ * Bluetooth HCI driver for Broadcom 4377/4378/4387/4388 devices attached via PCIe
  *
  * Copyright (C) The Asahi Linux Contributors
  */
@@ -26,13 +26,16 @@ enum bcm4377_chip {
 	BCM4377 = 0,
 	BCM4378,
 	BCM4387,
+	BCM4388,
 };
 
 #define BCM4377_DEVICE_ID 0x5fa0
 #define BCM4378_DEVICE_ID 0x5f69
 #define BCM4387_DEVICE_ID 0x5f71
+#define BCM4388_DEVICE_ID 0x5f72
 
-#define BCM4377_TIMEOUT 1000
+#define BCM4377_TIMEOUT msecs_to_jiffies(1000)
+#define BCM4377_BOOT_TIMEOUT msecs_to_jiffies(5000)
 
 /*
  * These devices only support DMA transactions inside a 32bit window
@@ -487,6 +490,7 @@ struct bcm4377_data;
  *                     second window in BAR0
  * has_bar0_core2_window2: Set to true if this chip requires the second core's
  *                         second window to be configured
+ * bar2_offset: Offset to the start of the variables in BAR2
  * clear_pciecfg_subsystem_ctrl_bit19: Set to true if bit 19 in the
  *                                     vendor-specific subsystem control
  *                                     register has to be cleared
@@ -495,6 +499,10 @@ struct bcm4377_data;
  *                  extended scanning
  * broken_mws_transport_config: Set to true if the chip erroneously claims to
  *                              support MWS Transport Configuration
+ * broken_le_ext_adv_report_phy: Set to true if this chip stuffs flags inside
+ *                               reserved bits of Primary/Secondary_PHY inside
+ *                               LE Extended Advertising Report events which
+ *                               have to be ignored
  * send_calibration: Optional callback to send calibration data
  * send_ptb: Callback to send "PTB" regulatory/calibration data
  */
@@ -506,6 +514,7 @@ struct bcm4377_hw {
 	u32 bar0_window1;
 	u32 bar0_window2;
 	u32 bar0_core2_window2;
+	u32 bar2_offset;
 
 	unsigned long has_bar0_core2_window2 : 1;
 	unsigned long clear_pciecfg_subsystem_ctrl_bit19 : 1;
@@ -513,6 +522,7 @@ struct bcm4377_hw {
 	unsigned long broken_ext_scan : 1;
 	unsigned long broken_mws_transport_config : 1;
 	unsigned long broken_le_coded : 1;
+	unsigned long broken_le_ext_adv_report_phy : 1;
 
 	int (*send_calibration)(struct bcm4377_data *bcm4377);
 	int (*send_ptb)(struct bcm4377_data *bcm4377,
@@ -716,7 +726,7 @@ static void bcm4377_handle_ack(struct bcm4377_data *bcm4377,
 		ring->events[msgid] = NULL;
 	}
 
-	bitmap_release_region(ring->msgids, msgid, ring->n_entries);
+	bitmap_release_region(ring->msgids, msgid, 0);
 
 unlock:
 	spin_unlock_irqrestore(&ring->lock, flags);
@@ -830,8 +840,8 @@ static irqreturn_t bcm4377_irq(int irq, void *data)
 	struct bcm4377_data *bcm4377 = data;
 	u32 bootstage, rti_status;
 
-	bootstage = ioread32(bcm4377->bar2 + BCM4377_BAR2_BOOTSTAGE);
-	rti_status = ioread32(bcm4377->bar2 + BCM4377_BAR2_RTI_STATUS);
+	bootstage = ioread32(bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_BOOTSTAGE);
+	rti_status = ioread32(bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_RTI_STATUS);
 
 	if (bootstage != bcm4377->bootstage ||
 	    rti_status != bcm4377->rti_status) {
@@ -1191,6 +1201,14 @@ static int bcm4387_send_calibration(struct bcm4377_data *bcm4377)
 						  bcm4377->taurus_cal_size);
 }
 
+static int bcm4388_send_calibration(struct bcm4377_data *bcm4377)
+{
+	/* BCM4388 always uses beamforming */
+	return __bcm4378_send_calibration(
+		bcm4377, bcm4377->taurus_beamforming_cal_blob,
+		bcm4377->taurus_beamforming_cal_size);
+}
+
 static const struct firmware *bcm4377_request_blob(struct bcm4377_data *bcm4377,
 						   const char *suffix)
 {
@@ -1814,8 +1832,8 @@ static int bcm4377_boot(struct bcm4377_data *bcm4377)
 	int ret = 0;
 	u32 bootstage, rti_status;
 
-	bootstage = ioread32(bcm4377->bar2 + BCM4377_BAR2_BOOTSTAGE);
-	rti_status = ioread32(bcm4377->bar2 + BCM4377_BAR2_RTI_STATUS);
+	bootstage = ioread32(bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_BOOTSTAGE);
+	rti_status = ioread32(bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_RTI_STATUS);
 
 	if (bootstage != 0) {
 		dev_err(&bcm4377->pdev->dev, "bootstage is %d and not 0\n",
@@ -1849,15 +1867,18 @@ static int bcm4377_boot(struct bcm4377_data *bcm4377)
 	iowrite32(BCM4377_DMA_MASK,
 		  bcm4377->bar0 + BCM4377_BAR0_HOST_WINDOW_SIZE);
 
-	iowrite32(lower_32_bits(fw_dma), bcm4377->bar2 + BCM4377_BAR2_FW_LO);
-	iowrite32(upper_32_bits(fw_dma), bcm4377->bar2 + BCM4377_BAR2_FW_HI);
-	iowrite32(fw->size, bcm4377->bar2 + BCM4377_BAR2_FW_SIZE);
+	iowrite32(lower_32_bits(fw_dma),
+		  bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_FW_LO);
+	iowrite32(upper_32_bits(fw_dma),
+		  bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_FW_HI);
+	iowrite32(fw->size,
+		  bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_FW_SIZE);
 	iowrite32(0, bcm4377->bar0 + BCM4377_BAR0_FW_DOORBELL);
 
 	dev_dbg(&bcm4377->pdev->dev, "waiting for firmware to boot\n");
 
 	ret = wait_for_completion_interruptible_timeout(&bcm4377->event,
-							BCM4377_TIMEOUT);
+							BCM4377_BOOT_TIMEOUT);
 	if (ret == 0) {
 		ret = -ETIMEDOUT;
 		goto out_dma_free;
@@ -1908,16 +1929,16 @@ static int bcm4377_setup_rti(struct bcm4377_data *bcm4377)
 	dev_dbg(&bcm4377->pdev->dev, "RTI is in state 1\n");
 
 	/* allow access to the entire IOVA space again */
-	iowrite32(0, bcm4377->bar2 + BCM4377_BAR2_RTI_WINDOW_LO);
-	iowrite32(0, bcm4377->bar2 + BCM4377_BAR2_RTI_WINDOW_HI);
+	iowrite32(0, bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_RTI_WINDOW_LO);
+	iowrite32(0, bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_RTI_WINDOW_HI);
 	iowrite32(BCM4377_DMA_MASK,
-		  bcm4377->bar2 + BCM4377_BAR2_RTI_WINDOW_SIZE);
+		  bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_RTI_WINDOW_SIZE);
 
 	/* setup "Converged IPC" context */
 	iowrite32(lower_32_bits(bcm4377->ctx_dma),
-		  bcm4377->bar2 + BCM4377_BAR2_CONTEXT_ADDR_LO);
+		  bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_CONTEXT_ADDR_LO);
 	iowrite32(upper_32_bits(bcm4377->ctx_dma),
-		  bcm4377->bar2 + BCM4377_BAR2_CONTEXT_ADDR_HI);
+		  bcm4377->bar2 + bcm4377->hw->bar2_offset + BCM4377_BAR2_CONTEXT_ADDR_HI);
 	iowrite32(2, bcm4377->bar0 + BCM4377_BAR0_RTI_CONTROL);
 
 	ret = wait_for_completion_interruptible_timeout(&bcm4377->event,
@@ -2373,6 +2394,8 @@ static int bcm4377_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
 	if (bcm4377->hw->broken_le_coded)
 		set_bit(HCI_QUIRK_BROKEN_LE_CODED, &hdev->quirks);
+	if (bcm4377->hw->broken_le_ext_adv_report_phy)
+		set_bit(HCI_QUIRK_FIXUP_LE_EXT_ADV_REPORT_PHY, &hdev->quirks);
 
 	pci_set_drvdata(pdev, bcm4377);
 	hci_set_drvdata(hdev, bcm4377);
@@ -2477,9 +2500,25 @@ static const struct bcm4377_hw bcm4377_hw_variants[] = {
 		.clear_pciecfg_subsystem_ctrl_bit19 = true,
 		.broken_mws_transport_config = true,
 		.broken_le_coded = true,
+		.broken_le_ext_adv_report_phy = true,
 		.send_calibration = bcm4387_send_calibration,
 		.send_ptb = bcm4378_send_ptb,
 	},
+
+	[BCM4388] = {
+		.id = 0x4388,
+		.otp_offset = 0x415c,
+		.bar2_offset = 0x200000,
+		.bar0_window1 = 0x18002000,
+		.bar0_window2 = 0x18109000,
+		.bar0_core2_window2 = 0x18106000,
+		.has_bar0_core2_window2 = true,
+		.broken_mws_transport_config = true,
+		.broken_le_coded = true,
+		.broken_le_ext_adv_report_phy = true,
+		.send_calibration = bcm4388_send_calibration,
+		.send_ptb = bcm4378_send_ptb,
+	},
 };
 
 #define BCM4377_DEVID_ENTRY(id)                                             \
@@ -2493,6 +2532,7 @@ static const struct pci_device_id bcm4377_devid_table[] = {
 	BCM4377_DEVID_ENTRY(4377),
 	BCM4377_DEVID_ENTRY(4378),
 	BCM4377_DEVID_ENTRY(4387),
+	BCM4377_DEVID_ENTRY(4388),
 	{},
 };
 MODULE_DEVICE_TABLE(pci, bcm4377_devid_table);
@@ -2507,7 +2547,7 @@ static struct pci_driver bcm4377_pci_driver = {
 module_pci_driver(bcm4377_pci_driver);
 
 MODULE_AUTHOR("Sven Peter <sven@svenpeter.dev>");
-MODULE_DESCRIPTION("Bluetooth support for Broadcom 4377/4378/4387 devices");
+MODULE_DESCRIPTION("Bluetooth support for Broadcom 4377/4378/4387/4388 devices");
 MODULE_LICENSE("Dual MIT/GPL");
 MODULE_FIRMWARE("brcm/brcmbt4377*.bin");
 MODULE_FIRMWARE("brcm/brcmbt4377*.ptb");
@@ -2515,3 +2555,5 @@ MODULE_FIRMWARE("brcm/brcmbt4378*.bin");
 MODULE_FIRMWARE("brcm/brcmbt4378*.ptb");
 MODULE_FIRMWARE("brcm/brcmbt4387*.bin");
 MODULE_FIRMWARE("brcm/brcmbt4387*.ptb");
+MODULE_FIRMWARE("brcm/brcmbt4388*.bin");
+MODULE_FIRMWARE("brcm/brcmbt4388*.ptb");
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 17a2f158a0dfa..30192bb083549 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -488,7 +488,7 @@ static int hci_uart_tty_open(struct tty_struct *tty)
 	if (tty->ops->write == NULL)
 		return -EOPNOTSUPP;
 
-	hu = kzalloc(sizeof(struct hci_uart), GFP_KERNEL);
+	hu = kzalloc(sizeof(*hu), GFP_KERNEL);
 	if (!hu) {
 		BT_ERR("Can't allocate control structure");
 		return -ENFILE;
diff --git a/drivers/bluetooth/hci_nokia.c b/drivers/bluetooth/hci_nokia.c
index 97da0b2bfd17e..62633d9ba7c43 100644
--- a/drivers/bluetooth/hci_nokia.c
+++ b/drivers/bluetooth/hci_nokia.c
@@ -116,11 +116,6 @@ struct hci_nokia_neg_evt {
 #define SETUP_BAUD_RATE		921600
 #define INIT_BAUD_RATE		120000
 
-struct hci_nokia_radio_hdr {
-	u8	evt;
-	u8	dlen;
-} __packed;
-
 struct nokia_bt_dev {
 	struct hci_uart hu;
 	struct serdev_device *serdev;
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 0c9c9ee56592d..2f47267508d54 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -569,7 +569,7 @@ static int qca_open(struct hci_uart *hu)
 	if (!hci_uart_has_flow_control(hu))
 		return -EOPNOTSUPP;
 
-	qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL);
+	qca = kzalloc(sizeof(*qca), GFP_KERNEL);
 	if (!qca)
 		return -ENOMEM;
 
@@ -1040,8 +1040,7 @@ static void qca_controller_memdump(struct work_struct *work)
 		}
 
 		if (!qca_memdump) {
-			qca_memdump = kzalloc(sizeof(struct qca_memdump_info),
-					      GFP_ATOMIC);
+			qca_memdump = kzalloc(sizeof(*qca_memdump), GFP_ATOMIC);
 			if (!qca_memdump) {
 				mutex_unlock(&qca->hci_memdump_lock);
 				return;
@@ -2450,15 +2449,27 @@ static void qca_serdev_shutdown(struct device *dev)
 	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
 	struct hci_uart *hu = &qcadev->serdev_hu;
 	struct hci_dev *hdev = hu->hdev;
-	struct qca_data *qca = hu->priv;
 	const u8 ibs_wake_cmd[] = { 0xFD };
 	const u8 edl_reset_soc_cmd[] = { 0x01, 0x00, 0xFC, 0x01, 0x05 };
 
 	if (qcadev->btsoc_type == QCA_QCA6390) {
-		if (test_bit(QCA_BT_OFF, &qca->flags) ||
-		    !test_bit(HCI_RUNNING, &hdev->flags))
+		/* The purpose of sending the VSC is to reset SOC into a initial
+		 * state and the state will ensure next hdev->setup() success.
+		 * if HCI_QUIRK_NON_PERSISTENT_SETUP is set, it means that
+		 * hdev->setup() can do its job regardless of SoC state, so
+		 * don't need to send the VSC.
+		 * if HCI_SETUP is set, it means that hdev->setup() was never
+		 * invoked and the SOC is already in the initial state, so
+		 * don't also need to send the VSC.
+		 */
+		if (test_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks) ||
+		    hci_dev_test_flag(hdev, HCI_SETUP))
 			return;
 
+		/* The serdev must be in open state when conrol logic arrives
+		 * here, so also fix the use-after-free issue caused by that
+		 * the serdev is flushed or wrote after it is closed.
+		 */
 		serdev_device_write_flush(serdev);
 		ret = serdev_device_write_buf(serdev, ibs_wake_cmd,
 					      sizeof(ibs_wake_cmd));
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 28750a40f0ed5..c4046f8f1985a 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -633,7 +633,7 @@ static int vhci_open(struct inode *inode, struct file *file)
 {
 	struct vhci_data *data;
 
-	data = kzalloc(sizeof(struct vhci_data), GFP_KERNEL);
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/ci/xfails/requirements.txt b/drivers/gpu/drm/ci/xfails/requirements.txt
index e9994c9db799b..267a6cc4e3133 100644
--- a/drivers/gpu/drm/ci/xfails/requirements.txt
+++ b/drivers/gpu/drm/ci/xfails/requirements.txt
@@ -13,5 +13,5 @@ ruamel.yaml==0.17.32
 ruamel.yaml.clib==0.2.7
 setuptools==68.0.0
 tenacity==8.2.3
-urllib3==2.0.7
+urllib3==2.2.2
 wheel==0.41.1
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index fe932ca3bc8ca..e372a88e8c3f6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -324,6 +324,17 @@ enum {
 	 * claim to support it.
 	 */
 	HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE,
+
+	/*
+	 * When this quirk is set, the reserved bits of Primary/Secondary_PHY
+	 * inside the LE Extended Advertising Report events are discarded.
+	 * This is required for some Apple/Broadcom controllers which
+	 * abuse these reserved bits for unrelated flags.
+	 *
+	 * This quirk can be set before hci_register_dev is called or
+	 * during the hdev->setup vendor callback.
+	 */
+	HCI_QUIRK_FIXUP_LE_EXT_ADV_REPORT_PHY,
 };
 
 /* HCI device flags */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9231396fe96fd..f7de2681d457e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -649,6 +649,7 @@ struct hci_dev {
 	int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
 				     struct bt_codec *codec, __u8 *vnd_len,
 				     __u8 **vnd_data);
+	u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb);
 };
 
 #define HCI_PHY_HANDLE(handle)	(handle & 0xff)
@@ -2113,18 +2114,46 @@ static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
 {
 	u16 max_latency;
 
-	if (min > max || min < 6 || max > 3200)
+	if (min > max) {
+		BT_WARN("min %d > max %d", min, max);
 		return -EINVAL;
+	}
+
+	if (min < 6) {
+		BT_WARN("min %d < 6", min);
+		return -EINVAL;
+	}
+
+	if (max > 3200) {
+		BT_WARN("max %d > 3200", max);
+		return -EINVAL;
+	}
+
+	if (to_multiplier < 10) {
+		BT_WARN("to_multiplier %d < 10", to_multiplier);
+		return -EINVAL;
+	}
 
-	if (to_multiplier < 10 || to_multiplier > 3200)
+	if (to_multiplier > 3200) {
+		BT_WARN("to_multiplier %d > 3200", to_multiplier);
 		return -EINVAL;
+	}
 
-	if (max >= to_multiplier * 8)
+	if (max >= to_multiplier * 8) {
+		BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
 		return -EINVAL;
+	}
 
 	max_latency = (to_multiplier * 4 / max) - 1;
-	if (latency > 499 || latency > max_latency)
+	if (latency > 499) {
+		BT_WARN("latency %d > 499", latency);
 		return -EINVAL;
+	}
+
+	if (latency > max_latency) {
+		BT_WARN("latency %d > max_latency %d", latency, max_latency);
+		return -EINVAL;
+	}
 
 	return 0;
 }
diff --git a/include/net/bluetooth/hci_sock.h b/include/net/bluetooth/hci_sock.h
index 9949870f7d780..13e8cd4414a11 100644
--- a/include/net/bluetooth/hci_sock.h
+++ b/include/net/bluetooth/hci_sock.h
@@ -144,7 +144,7 @@ struct hci_dev_req {
 
 struct hci_dev_list_req {
 	__u16  dev_num;
-	struct hci_dev_req dev_req[];	/* hci_dev_req structures */
+	struct hci_dev_req dev_req[] __counted_by(dev_num);
 };
 
 struct hci_conn_list_req {
diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h
index 6a9d063e9f472..b49057bbdf238 100644
--- a/include/net/bluetooth/hci_sync.h
+++ b/include/net/bluetooth/hci_sync.h
@@ -136,6 +136,7 @@ int hci_suspend_sync(struct hci_dev *hdev);
 int hci_resume_sync(struct hci_dev *hdev);
 
 struct hci_conn;
+struct hci_conn_params;
 
 int hci_abort_conn_sync(struct hci_dev *hdev, struct hci_conn *conn, u8 reason);
 
@@ -154,3 +155,5 @@ int hci_connect_acl_sync(struct hci_dev *hdev, struct hci_conn *conn);
 int hci_connect_le_sync(struct hci_dev *hdev, struct hci_conn *conn);
 
 int hci_cancel_connect_sync(struct hci_dev *hdev, struct hci_conn *conn);
+int hci_le_conn_update_sync(struct hci_dev *hdev, struct hci_conn *conn,
+			    struct hci_conn_params *params);
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 99d26879b02a5..c058824769002 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -355,7 +355,7 @@ struct rfcomm_dev_info {
 
 struct rfcomm_dev_list_req {
 	u16      dev_num;
-	struct   rfcomm_dev_info dev_info[];
+	struct   rfcomm_dev_info dev_info[] __counted_by(dev_num);
 };
 
 int  rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index dd3b0f5010187..d541cbb991ebd 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -837,7 +837,7 @@ int hci_get_dev_list(void __user *arg)
 	struct hci_dev *hdev;
 	struct hci_dev_list_req *dl;
 	struct hci_dev_req *dr;
-	int n = 0, size, err;
+	int n = 0, err;
 	__u16 dev_num;
 
 	if (get_user(dev_num, (__u16 __user *) arg))
@@ -846,12 +846,11 @@ int hci_get_dev_list(void __user *arg)
 	if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr))
 		return -EINVAL;
 
-	size = sizeof(*dl) + dev_num * sizeof(*dr);
-
-	dl = kzalloc(size, GFP_KERNEL);
+	dl = kzalloc(struct_size(dl, dev_req, dev_num), GFP_KERNEL);
 	if (!dl)
 		return -ENOMEM;
 
+	dl->dev_num = dev_num;
 	dr = dl->dev_req;
 
 	read_lock(&hci_dev_list_lock);
@@ -865,8 +864,8 @@ int hci_get_dev_list(void __user *arg)
 		if (hci_dev_test_flag(hdev, HCI_AUTO_OFF))
 			flags &= ~BIT(HCI_UP);
 
-		(dr + n)->dev_id  = hdev->id;
-		(dr + n)->dev_opt = flags;
+		dr[n].dev_id  = hdev->id;
+		dr[n].dev_opt = flags;
 
 		if (++n >= dev_num)
 			break;
@@ -874,9 +873,7 @@ int hci_get_dev_list(void __user *arg)
 	read_unlock(&hci_dev_list_lock);
 
 	dl->dev_num = n;
-	size = sizeof(*dl) + n * sizeof(*dr);
-
-	err = copy_to_user(arg, dl, size);
+	err = copy_to_user(arg, dl, struct_size(dl, dev_req, n));
 	kfree(dl);
 
 	return err ? -EFAULT : 0;
@@ -2751,7 +2748,11 @@ void hci_unregister_dev(struct hci_dev *hdev)
 	list_del(&hdev->list);
 	write_unlock(&hci_dev_list_lock);
 
+	cancel_work_sync(&hdev->rx_work);
+	cancel_work_sync(&hdev->cmd_work);
+	cancel_work_sync(&hdev->tx_work);
 	cancel_work_sync(&hdev->power_on);
+	cancel_work_sync(&hdev->error_reset);
 
 	hci_cmd_sync_clear(hdev);
 
@@ -2944,15 +2945,31 @@ int hci_reset_dev(struct hci_dev *hdev)
 }
 EXPORT_SYMBOL(hci_reset_dev);
 
+static u8 hci_dev_classify_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	if (hdev->classify_pkt_type)
+		return hdev->classify_pkt_type(hdev, skb);
+
+	return hci_skb_pkt_type(skb);
+}
+
 /* Receive frame from HCI drivers */
 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
+	u8 dev_pkt_type;
+
 	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 		      && !test_bit(HCI_INIT, &hdev->flags))) {
 		kfree_skb(skb);
 		return -ENXIO;
 	}
 
+	/* Check if the driver agree with packet type classification */
+	dev_pkt_type = hci_dev_classify_pkt_type(hdev, skb);
+	if (hci_skb_pkt_type(skb) != dev_pkt_type) {
+		hci_skb_pkt_type(skb) = dev_pkt_type;
+	}
+
 	switch (hci_skb_pkt_type(skb)) {
 	case HCI_EVENT_PKT:
 		break;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index a487f9df81450..4611a67d7dcc3 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -6311,6 +6311,13 @@ static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
 
 		evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
 		legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
+
+		if (test_bit(HCI_QUIRK_FIXUP_LE_EXT_ADV_REPORT_PHY,
+			     &hdev->quirks)) {
+			info->primary_phy &= 0x1f;
+			info->secondary_phy &= 0x1f;
+		}
+
 		if (legacy_evt_type != LE_ADV_INVALID) {
 			process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
 					   info->bdaddr_type, NULL, 0,
@@ -6660,6 +6667,7 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
 	struct bt_iso_qos *qos;
 	bool pending = false;
 	u16 handle = __le16_to_cpu(ev->handle);
+	u32 c_sdu_interval, p_sdu_interval;
 
 	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
 
@@ -6684,12 +6692,25 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
 
 	pending = test_and_clear_bit(HCI_CONN_CREATE_CIS, &conn->flags);
 
-	/* Convert ISO Interval (1.25 ms slots) to SDU Interval (us) */
-	qos->ucast.in.interval = le16_to_cpu(ev->interval) * 1250;
-	qos->ucast.out.interval = qos->ucast.in.interval;
+	/* BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 6, Part G
+	 * page 3075:
+	 * Transport_Latency_C_To_P = CIG_Sync_Delay + (FT_C_To_P) ×
+	 * ISO_Interval + SDU_Interval_C_To_P
+	 * ...
+	 * SDU_Interval = (CIG_Sync_Delay + (FT) x ISO_Interval) -
+	 *					Transport_Latency
+	 */
+	c_sdu_interval = (get_unaligned_le24(ev->cig_sync_delay) +
+			 (ev->c_ft * le16_to_cpu(ev->interval) * 1250)) -
+			get_unaligned_le24(ev->c_latency);
+	p_sdu_interval = (get_unaligned_le24(ev->cig_sync_delay) +
+			 (ev->p_ft * le16_to_cpu(ev->interval) * 1250)) -
+			get_unaligned_le24(ev->p_latency);
 
 	switch (conn->role) {
 	case HCI_ROLE_SLAVE:
+		qos->ucast.in.interval = c_sdu_interval;
+		qos->ucast.out.interval = p_sdu_interval;
 		/* Convert Transport Latency (us) to Latency (msec) */
 		qos->ucast.in.latency =
 			DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
@@ -6703,6 +6724,8 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
 		qos->ucast.out.phy = ev->p_phy;
 		break;
 	case HCI_ROLE_MASTER:
+		qos->ucast.in.interval = p_sdu_interval;
+		qos->ucast.out.interval = c_sdu_interval;
 		/* Convert Transport Latency (us) to Latency (msec) */
 		qos->ucast.out.latency =
 			DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
@@ -6893,6 +6916,10 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
 
 		bis = hci_conn_hash_lookup_handle(hdev, handle);
 		if (!bis) {
+			if (handle > HCI_CONN_HANDLE_MAX) {
+				bt_dev_dbg(hdev, "ignore too large handle %u", handle);
+				continue;
+			}
 			bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
 					   HCI_ROLE_SLAVE, handle);
 			if (IS_ERR(bis))
@@ -6961,6 +6988,8 @@ static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
 	if (!pa_sync)
 		goto unlock;
 
+	pa_sync->iso_qos.bcast.encryption = ev->encryption;
+
 	/* Notify iso layer */
 	hci_connect_cfm(pa_sync, 0);
 
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 16daa79b7981f..d24b08a111c05 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -1194,7 +1194,7 @@ int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance)
 
 	cp.own_addr_type = own_addr_type;
 	cp.channel_map = hdev->le_adv_channel_map;
-	cp.handle = instance;
+	cp.handle = adv ? adv->handle : instance;
 
 	if (flags & MGMT_ADV_FLAG_SEC_2M) {
 		cp.primary_phy = HCI_ADV_PHY_1M;
@@ -6711,3 +6711,21 @@ int hci_cancel_connect_sync(struct hci_dev *hdev, struct hci_conn *conn)
 
 	return -ENOENT;
 }
+
+int hci_le_conn_update_sync(struct hci_dev *hdev, struct hci_conn *conn,
+			    struct hci_conn_params *params)
+{
+	struct hci_cp_le_conn_update cp;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle		= cpu_to_le16(conn->handle);
+	cp.conn_interval_min	= cpu_to_le16(params->conn_min_interval);
+	cp.conn_interval_max	= cpu_to_le16(params->conn_max_interval);
+	cp.conn_latency		= cpu_to_le16(params->conn_latency);
+	cp.supervision_timeout	= cpu_to_le16(params->supervision_timeout);
+	cp.min_ce_len		= cpu_to_le16(0x0000);
+	cp.max_ce_len		= cpu_to_le16(0x0000);
+
+	return __hci_cmd_sync_status(hdev, HCI_OP_LE_CONN_UPDATE,
+				     sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index cc055b952ce69..e439c5d150920 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -1721,11 +1721,6 @@ static void iso_sock_ready(struct sock *sk)
 	release_sock(sk);
 }
 
-struct iso_list_data {
-	struct hci_conn *hcon;
-	int count;
-};
-
 static bool iso_match_big(struct sock *sk, void *data)
 {
 	struct hci_evt_le_big_sync_estabilished *ev = data;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 5b509b7675572..aed025734d047 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4011,8 +4011,8 @@ static void l2cap_connect(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd,
 				status = L2CAP_CS_AUTHOR_PEND;
 				chan->ops->defer(chan);
 			} else {
-				l2cap_state_change(chan, BT_CONNECT2);
-				result = L2CAP_CR_PEND;
+				l2cap_state_change(chan, BT_CONFIG);
+				result = L2CAP_CR_SUCCESS;
 				status = L2CAP_CS_NO_INFO;
 			}
 		} else {
@@ -4647,13 +4647,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 
 	memset(&rsp, 0, sizeof(rsp));
 
-	if (max > hcon->le_conn_max_interval) {
-		BT_DBG("requested connection interval exceeds current bounds.");
-		err = -EINVAL;
-	} else {
-		err = hci_check_conn_params(min, max, latency, to_multiplier);
-	}
-
+	err = hci_check_conn_params(min, max, latency, to_multiplier);
 	if (err)
 		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
 	else
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 6db60946c627c..962aa11ce3de7 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1239,6 +1239,10 @@ static void l2cap_sock_kill(struct sock *sk)
 
 	BT_DBG("sk %p state %s", sk, state_to_string(sk->sk_state));
 
+	/* Sock is dead, so set chan data to NULL, avoid other task use invalid
+	 * sock pointer.
+	 */
+	l2cap_pi(sk)->chan->data = NULL;
 	/* Kill poor orphan */
 
 	l2cap_chan_put(l2cap_pi(sk)->chan);
@@ -1481,12 +1485,25 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 
 static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
-	struct sock *sk = chan->data;
-	struct l2cap_pinfo *pi = l2cap_pi(sk);
+	struct sock *sk;
+	struct l2cap_pinfo *pi;
 	int err;
 
-	lock_sock(sk);
+	/* To avoid race with sock_release, a chan lock needs to be added here
+	 * to synchronize the sock.
+	 */
+	l2cap_chan_hold(chan);
+	l2cap_chan_lock(chan);
+	sk = chan->data;
 
+	if (!sk) {
+		l2cap_chan_unlock(chan);
+		l2cap_chan_put(chan);
+		return -ENXIO;
+	}
+
+	pi = l2cap_pi(sk);
+	lock_sock(sk);
 	if (chan->mode == L2CAP_MODE_ERTM && !list_empty(&pi->rx_busy)) {
 		err = -ENOMEM;
 		goto done;
@@ -1535,6 +1552,8 @@ static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 
 done:
 	release_sock(sk);
+	l2cap_chan_unlock(chan);
+	l2cap_chan_put(chan);
 
 	return err;
 }
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 80f220b7e19d5..3ab1558ff3914 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -42,7 +42,7 @@
 #include "aosp.h"
 
 #define MGMT_VERSION	1
-#define MGMT_REVISION	22
+#define MGMT_REVISION	23
 
 static const u16 mgmt_commands[] = {
 	MGMT_OP_READ_INDEX_LIST,
@@ -7813,6 +7813,18 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev,
 	return err;
 }
 
+static int conn_update_sync(struct hci_dev *hdev, void *data)
+{
+	struct hci_conn_params *params = data;
+	struct hci_conn *conn;
+
+	conn = hci_conn_hash_lookup_le(hdev, &params->addr, params->addr_type);
+	if (!conn)
+		return -ECANCELED;
+
+	return hci_le_conn_update_sync(hdev, conn, params);
+}
+
 static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
 			   u16 len)
 {
@@ -7846,12 +7858,14 @@ static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_dev_lock(hdev);
 
-	hci_conn_params_clear_disabled(hdev);
+	if (param_count > 1)
+		hci_conn_params_clear_disabled(hdev);
 
 	for (i = 0; i < param_count; i++) {
 		struct mgmt_conn_param *param = &cp->params[i];
 		struct hci_conn_params *hci_param;
 		u16 min, max, latency, timeout;
+		bool update = false;
 		u8 addr_type;
 
 		bt_dev_dbg(hdev, "Adding %pMR (type %u)", &param->addr.bdaddr,
@@ -7879,6 +7893,19 @@ static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
 			continue;
 		}
 
+		/* Detect when the loading is for an existing parameter then
+		 * attempt to trigger the connection update procedure.
+		 */
+		if (!i && param_count == 1) {
+			hci_param = hci_conn_params_lookup(hdev,
+							   &param->addr.bdaddr,
+							   addr_type);
+			if (hci_param)
+				update = true;
+			else
+				hci_conn_params_clear_disabled(hdev);
+		}
+
 		hci_param = hci_conn_params_add(hdev, &param->addr.bdaddr,
 						addr_type);
 		if (!hci_param) {
@@ -7890,6 +7917,25 @@ static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
 		hci_param->conn_max_interval = max;
 		hci_param->conn_latency = latency;
 		hci_param->supervision_timeout = timeout;
+
+		/* Check if we need to trigger a connection update */
+		if (update) {
+			struct hci_conn *conn;
+
+			/* Lookup for existing connection as central and check
+			 * if parameters match and if they don't then trigger
+			 * a connection update.
+			 */
+			conn = hci_conn_hash_lookup_le(hdev, &hci_param->addr,
+						       addr_type);
+			if (conn && conn->role == HCI_ROLE_MASTER &&
+			    (conn->le_conn_min_interval != min ||
+			     conn->le_conn_max_interval != max ||
+			     conn->le_conn_latency != latency ||
+			     conn->le_supv_timeout != timeout))
+				hci_cmd_sync_queue(hdev, conn_update_sync,
+						   hci_param, NULL);
+		}
 	}
 
 	hci_dev_unlock(hdev);
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 69c75c041fe10..af80d599c3371 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -504,7 +504,7 @@ static int rfcomm_get_dev_list(void __user *arg)
 	struct rfcomm_dev *dev;
 	struct rfcomm_dev_list_req *dl;
 	struct rfcomm_dev_info *di;
-	int n = 0, size, err;
+	int n = 0, err;
 	u16 dev_num;
 
 	BT_DBG("");
@@ -515,12 +515,11 @@ static int rfcomm_get_dev_list(void __user *arg)
 	if (!dev_num || dev_num > (PAGE_SIZE * 4) / sizeof(*di))
 		return -EINVAL;
 
-	size = sizeof(*dl) + dev_num * sizeof(*di);
-
-	dl = kzalloc(size, GFP_KERNEL);
+	dl = kzalloc(struct_size(dl, dev_info, dev_num), GFP_KERNEL);
 	if (!dl)
 		return -ENOMEM;
 
+	dl->dev_num = dev_num;
 	di = dl->dev_info;
 
 	mutex_lock(&rfcomm_dev_lock);
@@ -528,12 +527,12 @@ static int rfcomm_get_dev_list(void __user *arg)
 	list_for_each_entry(dev, &rfcomm_dev_list, list) {
 		if (!tty_port_get(&dev->port))
 			continue;
-		(di + n)->id      = dev->id;
-		(di + n)->flags   = dev->flags;
-		(di + n)->state   = dev->dlc->state;
-		(di + n)->channel = dev->channel;
-		bacpy(&(di + n)->src, &dev->src);
-		bacpy(&(di + n)->dst, &dev->dst);
+		di[n].id      = dev->id;
+		di[n].flags   = dev->flags;
+		di[n].state   = dev->dlc->state;
+		di[n].channel = dev->channel;
+		bacpy(&di[n].src, &dev->src);
+		bacpy(&di[n].dst, &dev->dst);
 		tty_port_put(&dev->port);
 		if (++n >= dev_num)
 			break;
@@ -542,9 +541,7 @@ static int rfcomm_get_dev_list(void __user *arg)
 	mutex_unlock(&rfcomm_dev_lock);
 
 	dl->dev_num = n;
-	size = sizeof(*dl) + n * sizeof(*di);
-
-	err = copy_to_user(arg, dl, size);
+	err = copy_to_user(arg, dl, struct_size(dl, dev_info, n));
 	kfree(dl);
 
 	return err ? -EFAULT : 0;