diff --git a/Documentation/devicetree/bindings/net/bluetooth/marvell,sd8897-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/marvell,sd8897-bt.yaml
new file mode 100644
index 000000000000..a307c64cfa4d
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/marvell,sd8897-bt.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/marvell,sd8897-bt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell 8897/8997 (sd8897/sd8997) bluetooth devices (SDIO)
+
+maintainers:
+  - Ariel D'Alessandro <ariel.dalessandro@collabora.com>
+
+allOf:
+  - $ref: /schemas/net/bluetooth/bluetooth-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - marvell,sd8897-bt
+      - marvell,sd8997-bt
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  marvell,cal-data:
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    description:
+      Calibration data downloaded to the device during initialization.
+    maxItems: 28
+
+  marvell,wakeup-pin:
+    $ref: /schemas/types.yaml#/definitions/uint16
+    description:
+      Wakeup pin number of the bluetooth chip. Used by firmware to wakeup host
+      system.
+
+  marvell,wakeup-gap-ms:
+    $ref: /schemas/types.yaml#/definitions/uint16
+    description:
+      Wakeup latency of the host platform. Required by the chip sleep feature.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    mmc {
+        vmmc-supply = <&wlan_en_reg>;
+        bus-width = <4>;
+        cap-power-off-card;
+        keep-power-in-suspend;
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        bluetooth@2 {
+            compatible = "marvell,sd8897-bt";
+            reg = <2>;
+            interrupt-parent = <&pio>;
+            interrupts = <119 IRQ_TYPE_LEVEL_LOW>;
+
+            marvell,cal-data = /bits/ 8 <
+                0x37 0x01 0x1c 0x00 0xff 0xff 0xff 0xff 0x01 0x7f 0x04 0x02
+                0x00 0x00 0xba 0xce 0xc0 0xc6 0x2d 0x00 0x00 0x00 0x00 0x00
+                0x00 0x00 0xf0 0x00>;
+            marvell,wakeup-pin = /bits/ 16 <0x0d>;
+            marvell,wakeup-gap-ms = /bits/ 16 <0x64>;
+        };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/net/btusb.txt b/Documentation/devicetree/bindings/net/btusb.txt
index f546b1f7dd6d..a68022a57c51 100644
--- a/Documentation/devicetree/bindings/net/btusb.txt
+++ b/Documentation/devicetree/bindings/net/btusb.txt
@@ -14,7 +14,7 @@ Required properties:
 
 
 Also, vendors that use btusb may have device additional properties, e.g:
-Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
+Documentation/devicetree/bindings/net/bluetooth/marvell,sd8897-bt.yaml
 
 Optional properties:
 
diff --git a/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt b/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
deleted file mode 100644
index 957e5e5c2927..000000000000
--- a/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
+++ /dev/null
@@ -1,83 +0,0 @@
-Marvell 8897/8997 (sd8897/sd8997) bluetooth devices (SDIO or USB based)
-------
-The 8997 devices supports multiple interfaces. When used on SDIO interfaces,
-the btmrvl driver is used and when used on USB interface, the btusb driver is
-used.
-
-Required properties:
-
-  - compatible : should be one of the following:
-	* "marvell,sd8897-bt" (for SDIO)
-	* "marvell,sd8997-bt" (for SDIO)
-	* "usb1286,204e"      (for USB)
-
-Optional properties:
-
-  - marvell,cal-data: Calibration data downloaded to the device during
-		      initialization. This is an array of 28 values(u8).
-		      This is only applicable to SDIO devices.
-
-  - marvell,wakeup-pin: It represents wakeup pin number of the bluetooth chip.
-		        firmware will use the pin to wakeup host system (u16).
-  - marvell,wakeup-gap-ms: wakeup gap represents wakeup latency of the host
-		      platform. The value will be configured to firmware. This
-		      is needed to work chip's sleep feature as expected (u16).
-  - interrupt-names: Used only for USB based devices (See below)
-  - interrupts : specifies the interrupt pin number to the cpu. For SDIO, the
-		 driver will use the first interrupt specified in the interrupt
-		 array. For USB based devices, the driver will use the interrupt
-		 named "wakeup" from the interrupt-names and interrupt arrays.
-		 The driver will request an irq based on this interrupt number.
-		 During system suspend, the irq will be enabled so that the
-		 bluetooth chip can wakeup host platform under certain
-		 conditions. During system resume, the irq will be disabled
-		 to make sure unnecessary interrupt is not received.
-
-Example:
-
-IRQ pin 119 is used as system wakeup source interrupt.
-wakeup pin 13 and gap 100ms are configured so that firmware can wakeup host
-using this device side pin and wakeup latency.
-
-Example for SDIO device follows (calibration data is also available in
-below example).
-
-&mmc3 {
-	vmmc-supply = <&wlan_en_reg>;
-	bus-width = <4>;
-	cap-power-off-card;
-	keep-power-in-suspend;
-
-	#address-cells = <1>;
-	#size-cells = <0>;
-	btmrvl: bluetooth@2 {
-		compatible = "marvell,sd8897-bt";
-		reg = <2>;
-		interrupt-parent = <&pio>;
-		interrupts = <119 IRQ_TYPE_LEVEL_LOW>;
-
-		marvell,cal-data = /bits/ 8 <
-			0x37 0x01 0x1c 0x00 0xff 0xff 0xff 0xff 0x01 0x7f 0x04 0x02
-			0x00 0x00 0xba 0xce 0xc0 0xc6 0x2d 0x00 0x00 0x00 0x00 0x00
-			0x00 0x00 0xf0 0x00>;
-		marvell,wakeup-pin = /bits/ 16 <0x0d>;
-		marvell,wakeup-gap-ms = /bits/ 16 <0x64>;
-	};
-};
-
-Example for USB device:
-
-&usb_host1_ohci {
-    #address-cells = <1>;
-    #size-cells = <0>;
-
-    mvl_bt1: bt@1 {
-	compatible = "usb1286,204e";
-	reg = <1>;
-	interrupt-parent = <&gpio0>;
-	interrupt-names = "wakeup";
-	interrupts = <119 IRQ_TYPE_LEVEL_LOW>;
-	marvell,wakeup-pin = /bits/ 16 <0x0d>;
-	marvell,wakeup-gap-ms = /bits/ 16 <0x64>;
-    };
-};
diff --git a/MAINTAINERS b/MAINTAINERS
index 09932ab7e0e8..4b2603ed45f4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21071,6 +21071,7 @@ F:	Documentation/devicetree/bindings/net/qcom,bam-dmux.yaml
 F:	drivers/net/wwan/qcom_bam_dmux.c
 
 QUALCOMM BLUETOOTH DRIVER
+M:	Bartosz Golaszewski <brgl@bgdev.pl>
 L:	linux-arm-msm@vger.kernel.org
 S:	Maintained
 F:	drivers/bluetooth/btqca.[ch]
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 7df69ccb6600..c5d45cf91f88 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -188,6 +188,7 @@ config BT_HCIUART_3WIRE
 	bool "Three-wire UART (H5) protocol support"
 	depends on BT_HCIUART
 	depends on BT_HCIUART_SERDEV
+	select CRC_CCITT
 	help
 	  The HCI Three-wire UART Transport Layer makes it possible to
 	  user the Bluetooth HCI over a serial port interface. The HCI
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 3a3a56ddbb06..d33cc70eec66 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -642,7 +642,9 @@ int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud
 		snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);
 	}
 
-	fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL);
+	fw_name = kmalloc_array(BCM_FW_NAME_COUNT_MAX,
+		sizeof(*fw_name),
+		GFP_KERNEL);
 	if (!fw_name)
 		return -ENOMEM;
 
diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c
index a075d8ec4677..2936b535479f 100644
--- a/drivers/bluetooth/btintel_pcie.c
+++ b/drivers/bluetooth/btintel_pcie.c
@@ -19,6 +19,7 @@
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/hci_drv.h>
 
 #include "btintel.h"
 #include "btintel_pcie.h"
@@ -825,6 +826,11 @@ static inline bool btintel_pcie_in_d0(struct btintel_pcie_data *data)
 	return !(data->boot_stage_cache & BTINTEL_PCIE_CSR_BOOT_STAGE_D3_STATE_READY);
 }
 
+static inline bool btintel_pcie_in_device_halt(struct btintel_pcie_data *data)
+{
+	return data->boot_stage_cache & BTINTEL_PCIE_CSR_BOOT_STAGE_DEVICE_HALTED;
+}
+
 static void btintel_pcie_wr_sleep_cntrl(struct btintel_pcie_data *data,
 					u32 dxstate)
 {
@@ -2355,6 +2361,63 @@ static bool btintel_pcie_wakeup(struct hci_dev *hdev)
 	return device_may_wakeup(&data->pdev->dev);
 }
 
+static const struct {
+	u16 opcode;
+	const char *desc;
+} btintel_pcie_hci_drv_supported_commands[] = {
+	/* Common commands */
+	{ HCI_DRV_OP_READ_INFO, "Read Info" },
+};
+
+static int btintel_pcie_hci_drv_read_info(struct hci_dev *hdev, void *data,
+					  u16 data_len)
+{
+	struct hci_drv_rp_read_info *rp;
+	size_t rp_size;
+	int err, i;
+	u16 opcode, num_supported_commands =
+		ARRAY_SIZE(btintel_pcie_hci_drv_supported_commands);
+
+	rp_size = sizeof(*rp) + num_supported_commands * 2;
+
+	rp = kmalloc(rp_size, GFP_KERNEL);
+	if (!rp)
+		return -ENOMEM;
+
+	strscpy_pad(rp->driver_name, KBUILD_MODNAME);
+
+	rp->num_supported_commands = cpu_to_le16(num_supported_commands);
+	for (i = 0; i < num_supported_commands; i++) {
+		opcode = btintel_pcie_hci_drv_supported_commands[i].opcode;
+		bt_dev_dbg(hdev,
+			    "Supported HCI Drv command (0x%02x|0x%04x): %s",
+			    hci_opcode_ogf(opcode),
+			    hci_opcode_ocf(opcode),
+			    btintel_pcie_hci_drv_supported_commands[i].desc);
+		rp->supported_commands[i] = cpu_to_le16(opcode);
+	}
+
+	err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO,
+				   HCI_DRV_STATUS_SUCCESS,
+				   rp, rp_size);
+
+	kfree(rp);
+	return err;
+}
+
+static const struct hci_drv_handler btintel_pcie_hci_drv_common_handlers[] = {
+	{ btintel_pcie_hci_drv_read_info,       HCI_DRV_READ_INFO_SIZE },
+};
+
+static const struct hci_drv_handler btintel_pcie_hci_drv_specific_handlers[] = {};
+
+static struct hci_drv btintel_pcie_hci_drv = {
+	.common_handler_count   = ARRAY_SIZE(btintel_pcie_hci_drv_common_handlers),
+	.common_handlers        = btintel_pcie_hci_drv_common_handlers,
+	.specific_handler_count = ARRAY_SIZE(btintel_pcie_hci_drv_specific_handlers),
+	.specific_handlers      = btintel_pcie_hci_drv_specific_handlers,
+};
+
 static int btintel_pcie_setup_hdev(struct btintel_pcie_data *data)
 {
 	int err;
@@ -2381,6 +2444,7 @@ static int btintel_pcie_setup_hdev(struct btintel_pcie_data *data)
 	hdev->set_bdaddr = btintel_set_bdaddr;
 	hdev->reset = btintel_pcie_reset;
 	hdev->wakeup = btintel_pcie_wakeup;
+	hdev->hci_drv = &btintel_pcie_hci_drv;
 
 	err = hci_register_dev(hdev);
 	if (err < 0) {
@@ -2519,6 +2583,48 @@ static void btintel_pcie_coredump(struct device *dev)
 }
 #endif
 
+static int btintel_pcie_set_dxstate(struct btintel_pcie_data *data, u32 dxstate)
+{
+	int retry = 0, status;
+	u32 dx_intr_timeout_ms = 200;
+
+	do {
+		data->gp0_received = false;
+
+		btintel_pcie_wr_sleep_cntrl(data, dxstate);
+
+		status = wait_event_timeout(data->gp0_wait_q, data->gp0_received,
+			msecs_to_jiffies(dx_intr_timeout_ms));
+
+		if (status)
+			return 0;
+
+		bt_dev_warn(data->hdev,
+			   "Timeout (%u ms) on alive interrupt for D%d entry, retry count %d",
+			   dx_intr_timeout_ms, dxstate, retry);
+
+		/* clear gp0 cause */
+		btintel_pcie_clr_reg_bits(data,
+					  BTINTEL_PCIE_CSR_MSIX_HW_INT_CAUSES,
+					  BTINTEL_PCIE_MSIX_HW_INT_CAUSES_GP0);
+
+		/* A hardware bug may cause the alive interrupt to be missed.
+		 * Check if the controller reached the expected state and retry
+		 * the operation only if it hasn't.
+		 */
+		if (dxstate == BTINTEL_PCIE_STATE_D0) {
+			if (btintel_pcie_in_d0(data))
+				return 0;
+		} else {
+			if (btintel_pcie_in_d3(data))
+				return 0;
+		}
+
+	} while (++retry < BTINTEL_PCIE_DX_TRANSITION_MAX_RETRIES);
+
+	return -EBUSY;
+}
+
 static int btintel_pcie_suspend_late(struct device *dev, pm_message_t mesg)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
@@ -2532,26 +2638,20 @@ static int btintel_pcie_suspend_late(struct device *dev, pm_message_t mesg)
 	dxstate = (mesg.event == PM_EVENT_SUSPEND ?
 		   BTINTEL_PCIE_STATE_D3_HOT : BTINTEL_PCIE_STATE_D3_COLD);
 
-	data->gp0_received = false;
+	data->pm_sx_event = mesg.event;
 
 	start = ktime_get();
 
 	/* Refer: 6.4.11.7 -> Platform power management */
-	btintel_pcie_wr_sleep_cntrl(data, dxstate);
-	err = wait_event_timeout(data->gp0_wait_q, data->gp0_received,
-				 msecs_to_jiffies(BTINTEL_DEFAULT_INTR_TIMEOUT_MS));
-	if (err == 0) {
-		bt_dev_err(data->hdev,
-			   "Timeout (%u ms) on alive interrupt for D3 entry",
-			   BTINTEL_DEFAULT_INTR_TIMEOUT_MS);
-		return -EBUSY;
-	}
+	err = btintel_pcie_set_dxstate(data, dxstate);
+
+	if (err)
+		return err;
 
 	bt_dev_dbg(data->hdev,
 		   "device entered into d3 state from d0 in %lld us",
 		   ktime_to_us(ktime_get() - start));
-
-	return 0;
+	return err;
 }
 
 static int btintel_pcie_suspend(struct device *dev)
@@ -2581,21 +2681,50 @@ static int btintel_pcie_resume(struct device *dev)
 
 	start = ktime_get();
 
-	/* Refer: 6.4.11.7 -> Platform power management */
-	btintel_pcie_wr_sleep_cntrl(data, BTINTEL_PCIE_STATE_D0);
-	err = wait_event_timeout(data->gp0_wait_q, data->gp0_received,
-				 msecs_to_jiffies(BTINTEL_DEFAULT_INTR_TIMEOUT_MS));
-	if (err == 0) {
-		bt_dev_err(data->hdev,
-			   "Timeout (%u ms) on alive interrupt for D0 entry",
-			   BTINTEL_DEFAULT_INTR_TIMEOUT_MS);
-		return -EBUSY;
+	/* When the system enters S4 (hibernate) mode, bluetooth device loses
+	 * power, which results in the erasure of its loaded firmware.
+	 * Consequently, function level reset (flr) is required on system
+	 * resume to bring the controller back into an operational state by
+	 * initiating a new firmware download.
+	 */
+
+	if (data->pm_sx_event == PM_EVENT_FREEZE ||
+	    data->pm_sx_event == PM_EVENT_HIBERNATE) {
+		set_bit(BTINTEL_PCIE_CORE_HALTED, &data->flags);
+		btintel_pcie_reset(data->hdev);
+		return 0;
 	}
 
-	bt_dev_dbg(data->hdev,
-		    "device entered into d0 state from d3 in %lld us",
-		     ktime_to_us(ktime_get() - start));
-	return 0;
+	/* Refer: 6.4.11.7 -> Platform power management */
+	err = btintel_pcie_set_dxstate(data, BTINTEL_PCIE_STATE_D0);
+
+	if (err == 0) {
+		bt_dev_dbg(data->hdev,
+			   "device entered into d0 state from d3 in %lld us",
+			   ktime_to_us(ktime_get() - start));
+		return err;
+	}
+
+	/* Trigger function level reset if the controller is in error
+	 * state during resume() to bring back the controller to
+	 * operational mode
+	 */
+
+	data->boot_stage_cache = btintel_pcie_rd_reg32(data,
+			BTINTEL_PCIE_CSR_BOOT_STAGE_REG);
+	if (btintel_pcie_in_error(data) ||
+			btintel_pcie_in_device_halt(data)) {
+		bt_dev_err(data->hdev, "Controller in error state for D0 entry");
+		if (!test_and_set_bit(BTINTEL_PCIE_COREDUMP_INPROGRESS,
+				      &data->flags)) {
+			data->dmp_hdr.trigger_reason =
+				BTINTEL_PCIE_TRIGGER_REASON_FW_ASSERT;
+			queue_work(data->workqueue, &data->rx_work);
+		}
+		set_bit(BTINTEL_PCIE_CORE_HALTED, &data->flags);
+		btintel_pcie_reset(data->hdev);
+	}
+	return err;
 }
 
 static const struct dev_pm_ops btintel_pcie_pm_ops = {
diff --git a/drivers/bluetooth/btintel_pcie.h b/drivers/bluetooth/btintel_pcie.h
index 04b21f968ad3..e3d941ffef4a 100644
--- a/drivers/bluetooth/btintel_pcie.h
+++ b/drivers/bluetooth/btintel_pcie.h
@@ -158,6 +158,8 @@ enum msix_mbox_int_causes {
 /* Default interrupt timeout in msec */
 #define BTINTEL_DEFAULT_INTR_TIMEOUT_MS	3000
 
+#define BTINTEL_PCIE_DX_TRANSITION_MAX_RETRIES	3
+
 /* The number of descriptors in TX queues */
 #define BTINTEL_PCIE_TX_DESCS_COUNT	32
 
@@ -464,6 +466,7 @@ struct btintel_pcie_dump_header {
  * @txq: TX Queue struct
  * @rxq: RX Queue struct
  * @alive_intr_ctxt: Alive interrupt context
+ * @pm_sx_event: PM event on which system got suspended
  */
 struct btintel_pcie_data {
 	struct pci_dev	*pdev;
@@ -513,6 +516,7 @@ struct btintel_pcie_data {
 	u32	alive_intr_ctxt;
 	struct btintel_pcie_dbgc	dbgc;
 	struct btintel_pcie_dump_header dmp_hdr;
+	u8	pm_sx_event;
 };
 
 static inline u32 btintel_pcie_rd_reg32(struct btintel_pcie_data *data,
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 62db31bd6592..fba3ab6d30a5 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -615,7 +615,6 @@ static void btmtksdio_txrx_work(struct work_struct *work)
 
 	sdio_release_host(bdev->func);
 
-	pm_runtime_mark_last_busy(bdev->dev);
 	pm_runtime_put_autosuspend(bdev->dev);
 }
 
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 52794db2739b..5603b282f9bc 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -72,6 +72,7 @@ enum btrtl_chip_id {
 	CHIP_ID_8851B = 36,
 	CHIP_ID_8922A = 44,
 	CHIP_ID_8852BT = 47,
+	CHIP_ID_8761C = 51,
 };
 
 struct id_table {
@@ -230,6 +231,14 @@ static const struct id_table ic_id_table[] = {
 	  .cfg_name = "rtl_bt/rtl8761bu_config",
 	  .hw_info  = "rtl8761bu" },
 
+	/* 8761CU */
+	{ IC_INFO(RTL_ROM_LMP_8761A, 0x0e, 0, HCI_USB),
+	  .config_needed = false,
+	  .has_rom_version = true,
+	  .fw_name  = "rtl_bt/rtl8761cu_fw",
+	  .cfg_name = "rtl_bt/rtl8761cu_config",
+	  .hw_info  = "rtl8761cu" },
+
 	/* 8822C with UART interface */
 	{ IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0x8, HCI_UART),
 	  .config_needed = true,
@@ -344,7 +353,8 @@ static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
 		    (ic_id_table[i].hci_rev != hci_rev))
 			continue;
 		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIVER) &&
-		    (ic_id_table[i].hci_ver != hci_ver))
+		    (ic_id_table[i].hci_ver != hci_ver) &&
+		    (ic_id_table[i].hci_ver != 0))
 			continue;
 		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) &&
 		    (ic_id_table[i].hci_bus != hci_bus))
@@ -662,6 +672,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 		{ RTL_ROM_LMP_8851B, 36 },	/* 8851B */
 		{ RTL_ROM_LMP_8922A, 44 },	/* 8922A */
 		{ RTL_ROM_LMP_8852A, 47 },	/* 8852BT */
+		{ RTL_ROM_LMP_8761A, 51 },	/* 8761C */
 	};
 
 	if (btrtl_dev->fw_len <= 8)
@@ -1305,6 +1316,7 @@ void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev)
 	case CHIP_ID_8851B:
 	case CHIP_ID_8922A:
 	case CHIP_ID_8852BT:
+	case CHIP_ID_8761C:
 		hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
 
 		/* RTL8852C needs to transmit mSBC data continuously without
@@ -1524,6 +1536,8 @@ MODULE_FIRMWARE("rtl_bt/rtl8761b_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8761b_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8761bu_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8761bu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761cu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761cu_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8821a_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8821a_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8821c_fw.bin");
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index fa683bb7f0b4..8ed3883ab8ee 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -504,6 +504,8 @@ static const struct usb_device_id quirks_table[] = {
 	/* Realtek 8821CE Bluetooth devices */
 	{ USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
 
 	/* Realtek 8822CE Bluetooth devices */
 	{ USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
@@ -585,6 +587,12 @@ static const struct usb_device_id quirks_table[] = {
 	/* Realtek 8852BT/8852BE-VT Bluetooth devices */
 	{ USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
 
 	/* Realtek 8922AE Bluetooth devices */
 	{ USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
@@ -621,6 +629,8 @@ static const struct usb_device_id quirks_table[] = {
 	/* Additional MediaTek MT7920 Bluetooth devices */
 	{ USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK |
+						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
@@ -685,6 +695,8 @@ static const struct usb_device_id quirks_table[] = {
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK |
+						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
@@ -781,6 +793,8 @@ static const struct usb_device_id quirks_table[] = {
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
 
 	/* Additional Realtek 8821AE Bluetooth devices */
 	{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
@@ -1131,6 +1145,24 @@ static void btusb_qca_reset(struct hci_dev *hdev)
 	btusb_reset(hdev);
 }
 
+static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	/* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug
+	 * packets as ACL frames with connection handle 0x2EDC. These are not real
+	 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent
+	 * "ACL packet for unknown connection handle 3804" errors.
+	 */
+	if (skb->len >= 2) {
+		u16 handle = get_unaligned_le16(skb->data);
+
+		if (handle == 0x2EDC)
+			return HCI_DIAG_PKT;
+	}
+
+	/* Use default packet type for other packets */
+	return hci_skb_pkt_type(skb);
+}
+
 static inline void btusb_free_frags(struct btusb_data *data)
 {
 	unsigned long flags;
@@ -2808,6 +2840,19 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
 	btusb_stop_traffic(data);
 	usb_kill_anchored_urbs(&data->tx_anchor);
 
+	/* Toggle the hard reset line. The MediaTek device is going to
+	 * yank itself off the USB and then replug. The cleanup is handled
+	 * correctly on the way out (standard USB disconnect), and the new
+	 * device is detected cleanly and bound to the driver again like
+	 * it should be.
+	 */
+	if (data->reset_gpio) {
+		gpiod_set_value_cansleep(data->reset_gpio, 1);
+		msleep(200);
+		gpiod_set_value_cansleep(data->reset_gpio, 0);
+		return 0;
+	}
+
 	err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
 
 	usb_queue_reset_device(data->intf);
@@ -3261,6 +3306,7 @@ static const struct qca_device_info qca_devices_table[] = {
 
 static const struct qca_custom_firmware qca_custom_btfws[] = {
 	{ 0x00130201, 0x030A, "QCA2066" },
+	{ 0x00130201, 0x030B, "QCA2066" },
 	{ },
 };
 
@@ -4226,6 +4272,7 @@ static int btusb_probe(struct usb_interface *intf,
 		data->recv_acl = btusb_recv_acl_qca;
 		hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
 		data->setup_on_usb = btusb_setup_qca;
+		hdev->classify_pkt_type = btusb_classify_qca_pkt_type;
 		hdev->shutdown = btusb_shutdown_qca;
 		hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
 		hdev->reset = btusb_qca_reset;
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index fff845ed44e3..9286a5f40f55 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -326,7 +326,6 @@ static irqreturn_t bcm_host_wake(int irq, void *data)
 	bt_dev_dbg(bdev, "Host wake IRQ");
 
 	pm_runtime_get(bdev->dev);
-	pm_runtime_mark_last_busy(bdev->dev);
 	pm_runtime_put_autosuspend(bdev->dev);
 
 	return IRQ_HANDLED;
@@ -710,7 +709,6 @@ static int bcm_recv(struct hci_uart *hu, const void *data, int count)
 		mutex_lock(&bcm_device_lock);
 		if (bcm->dev && bcm_device_exists(bcm->dev)) {
 			pm_runtime_get(bcm->dev->dev);
-			pm_runtime_mark_last_busy(bcm->dev->dev);
 			pm_runtime_put_autosuspend(bcm->dev->dev);
 		}
 		mutex_unlock(&bcm_device_lock);
@@ -748,10 +746,8 @@ static struct sk_buff *bcm_dequeue(struct hci_uart *hu)
 
 	skb = skb_dequeue(&bcm->txq);
 
-	if (bdev) {
-		pm_runtime_mark_last_busy(bdev->dev);
+	if (bdev)
 		pm_runtime_put_autosuspend(bdev->dev);
-	}
 
 	mutex_unlock(&bcm_device_lock);
 
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index d0d4420c1a0f..96e20a66ecd1 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -7,6 +7,8 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/bitrev.h>
+#include <linux/crc-ccitt.h>
 #include <linux/errno.h>
 #include <linux/gpio/consumer.h>
 #include <linux/kernel.h>
@@ -58,6 +60,7 @@ enum {
 	H5_TX_ACK_REQ,		/* Pending ack to send */
 	H5_WAKEUP_DISABLE,	/* Device cannot wake host */
 	H5_HW_FLOW_CONTROL,	/* Use HW flow control */
+	H5_CRC,			/* Use CRC */
 };
 
 struct h5 {
@@ -141,8 +144,8 @@ static void h5_link_control(struct hci_uart *hu, const void *data, size_t len)
 
 static u8 h5_cfg_field(struct h5 *h5)
 {
-	/* Sliding window size (first 3 bits) */
-	return h5->tx_win & 0x07;
+	/* Sliding window size (first 3 bits) and CRC request (fifth bit). */
+	return (h5->tx_win & 0x07) | 0x10;
 }
 
 static void h5_timed_event(struct timer_list *t)
@@ -213,7 +216,6 @@ static void h5_peer_reset(struct hci_uart *hu)
 static int h5_open(struct hci_uart *hu)
 {
 	struct h5 *h5;
-	const unsigned char sync[] = { 0x01, 0x7e };
 
 	BT_DBG("hu %p", hu);
 
@@ -243,9 +245,11 @@ static int h5_open(struct hci_uart *hu)
 
 	set_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags);
 
-	/* Send initial sync request */
-	h5_link_control(hu, sync, sizeof(sync));
-	mod_timer(&h5->timer, jiffies + H5_SYNC_TIMEOUT);
+	/*
+	 * Wait one jiffy because the UART layer won't set HCI_UART_PROTO_READY,
+	 * which allows us to send link packets, until this function returns.
+	 */
+	mod_timer(&h5->timer, jiffies + 1);
 
 	return 0;
 }
@@ -360,8 +364,10 @@ static void h5_handle_internal_rx(struct hci_uart *hu)
 		h5_link_control(hu, conf_rsp, 2);
 		h5_link_control(hu, conf_req, 3);
 	} else if (memcmp(data, conf_rsp, 2) == 0) {
-		if (H5_HDR_LEN(hdr) > 2)
+		if (H5_HDR_LEN(hdr) > 2) {
 			h5->tx_win = (data[2] & 0x07);
+			assign_bit(H5_CRC, &h5->flags, data[2] & 0x10);
+		}
 		BT_DBG("Three-wire init complete. tx_win %u", h5->tx_win);
 		h5->state = H5_ACTIVE;
 		hci_uart_init_ready(hu);
@@ -425,7 +431,24 @@ static void h5_complete_rx_pkt(struct hci_uart *hu)
 
 static int h5_rx_crc(struct hci_uart *hu, unsigned char c)
 {
-	h5_complete_rx_pkt(hu);
+	struct h5 *h5 = hu->priv;
+	const unsigned char *hdr = h5->rx_skb->data;
+	u16 crc;
+	__be16 crc_be;
+
+	crc = crc_ccitt(0xffff, hdr, 4 + H5_HDR_LEN(hdr));
+	crc = bitrev16(crc);
+
+	crc_be = cpu_to_be16(crc);
+
+	if (memcmp(&crc_be, hdr + 4 + H5_HDR_LEN(hdr), 2) != 0) {
+		bt_dev_err(hu->hdev, "Received packet with invalid CRC");
+		h5_reset_rx(h5);
+	} else {
+		/* Remove CRC bytes */
+		skb_trim(h5->rx_skb, 4 + H5_HDR_LEN(hdr));
+		h5_complete_rx_pkt(hu);
+	}
 
 	return 0;
 }
@@ -556,6 +579,7 @@ static void h5_reset_rx(struct h5 *h5)
 	h5->rx_func = h5_rx_delimiter;
 	h5->rx_pending = 0;
 	clear_bit(H5_RX_ESC, &h5->flags);
+	clear_bit(H5_CRC, &h5->flags);
 }
 
 static int h5_recv(struct hci_uart *hu, const void *data, int count)
@@ -592,7 +616,6 @@ static int h5_recv(struct hci_uart *hu, const void *data, int count)
 
 	if (hu->serdev) {
 		pm_runtime_get(&hu->serdev->dev);
-		pm_runtime_mark_last_busy(&hu->serdev->dev);
 		pm_runtime_put_autosuspend(&hu->serdev->dev);
 	}
 
@@ -634,7 +657,6 @@ static int h5_enqueue(struct hci_uart *hu, struct sk_buff *skb)
 
 	if (hu->serdev) {
 		pm_runtime_get_sync(&hu->serdev->dev);
-		pm_runtime_mark_last_busy(&hu->serdev->dev);
 		pm_runtime_put_autosuspend(&hu->serdev->dev);
 	}
 
@@ -686,6 +708,7 @@ static struct sk_buff *h5_prepare_pkt(struct hci_uart *hu, u8 pkt_type,
 	struct h5 *h5 = hu->priv;
 	struct sk_buff *nskb;
 	u8 hdr[4];
+	u16 crc;
 	int i;
 
 	if (!valid_packet_type(pkt_type)) {
@@ -713,6 +736,7 @@ static struct sk_buff *h5_prepare_pkt(struct hci_uart *hu, u8 pkt_type,
 	/* Reliable packet? */
 	if (pkt_type == HCI_ACLDATA_PKT || pkt_type == HCI_COMMAND_PKT) {
 		hdr[0] |= 1 << 7;
+		hdr[0] |= (test_bit(H5_CRC, &h5->flags) && 1) << 6;
 		hdr[0] |= h5->tx_seq;
 		h5->tx_seq = (h5->tx_seq + 1) % 8;
 	}
@@ -732,6 +756,15 @@ static struct sk_buff *h5_prepare_pkt(struct hci_uart *hu, u8 pkt_type,
 	for (i = 0; i < len; i++)
 		h5_slip_one_byte(nskb, data[i]);
 
+	if (H5_HDR_CRC(hdr)) {
+		crc = crc_ccitt(0xffff, hdr, 4);
+		crc = crc_ccitt(crc, data, len);
+		crc = bitrev16(crc);
+
+		h5_slip_one_byte(nskb, (crc >> 8) & 0xff);
+		h5_slip_one_byte(nskb, crc & 0xff);
+	}
+
 	h5_slip_delim(nskb);
 
 	return nskb;
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index 1d6e09508f1f..20baf2895dec 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -280,7 +280,6 @@ static irqreturn_t intel_irq(int irq, void *dev_id)
 
 	/* Host/Controller are now LPM resumed, trigger a new delayed suspend */
 	pm_runtime_get(&idev->pdev->dev);
-	pm_runtime_mark_last_busy(&idev->pdev->dev);
 	pm_runtime_put_autosuspend(&idev->pdev->dev);
 
 	return IRQ_HANDLED;
@@ -371,7 +370,6 @@ static void intel_busy_work(struct work_struct *work)
 	list_for_each_entry(idev, &intel_device_list, list) {
 		if (intel->hu->tty->dev->parent == idev->pdev->dev.parent) {
 			pm_runtime_get(&idev->pdev->dev);
-			pm_runtime_mark_last_busy(&idev->pdev->dev);
 			pm_runtime_put_autosuspend(&idev->pdev->dev);
 			break;
 		}
@@ -1003,7 +1001,6 @@ static int intel_enqueue(struct hci_uart *hu, struct sk_buff *skb)
 	list_for_each_entry(idev, &intel_device_list, list) {
 		if (hu->tty->dev->parent == idev->pdev->dev.parent) {
 			pm_runtime_get_sync(&idev->pdev->dev);
-			pm_runtime_mark_last_busy(&idev->pdev->dev);
 			pm_runtime_put_autosuspend(&idev->pdev->dev);
 			break;
 		}
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index cb4c02d00759..a27cd3626b87 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -647,10 +647,13 @@ enum {
 #define HCI_LE_EXT_ADV			0x10
 #define HCI_LE_PERIODIC_ADV		0x20
 #define HCI_LE_CHAN_SEL_ALG2		0x40
+#define HCI_LE_PAST_SENDER		0x01
+#define HCI_LE_PAST_RECEIVER		0x02
 #define HCI_LE_CIS_CENTRAL		0x10
 #define HCI_LE_CIS_PERIPHERAL		0x20
 #define HCI_LE_ISO_BROADCASTER		0x40
 #define HCI_LE_ISO_SYNC_RECEIVER	0x80
+#define HCI_LE_LL_EXT_FEATURE		0x80
 
 /* Connection modes */
 #define HCI_CM_ACTIVE	0x0000
@@ -2068,6 +2071,44 @@ struct hci_cp_le_set_privacy_mode {
 	__u8  mode;
 } __packed;
 
+#define HCI_OP_LE_PAST			0x205a
+struct hci_cp_le_past {
+	__le16 handle;
+	__le16 service_data;
+	__le16 sync_handle;
+} __packed;
+
+struct hci_rp_le_past {
+	__u8   status;
+	__le16 handle;
+} __packed;
+
+#define HCI_OP_LE_PAST_SET_INFO		0x205b
+struct hci_cp_le_past_set_info {
+	__le16 handle;
+	__le16 service_data;
+	__u8   adv_handle;
+} __packed;
+
+struct hci_rp_le_past_set_info {
+	__u8   status;
+	__le16 handle;
+} __packed;
+
+#define HCI_OP_LE_PAST_PARAMS		0x205c
+struct hci_cp_le_past_params {
+	__le16  handle;
+	__u8    mode;
+	__le16  skip;
+	__le16  sync_timeout;
+	__u8    cte_type;
+} __packed;
+
+struct hci_rp_le_past_params {
+	__u8   status;
+	__le16 handle;
+} __packed;
+
 #define HCI_OP_LE_READ_BUFFER_SIZE_V2	0x2060
 struct hci_rp_le_read_buffer_size_v2 {
 	__u8    status;
@@ -2215,6 +2256,19 @@ struct hci_cp_le_set_host_feature {
 	__u8     bit_value;
 } __packed;
 
+#define HCI_OP_LE_READ_ALL_LOCAL_FEATURES	0x2087
+struct hci_rp_le_read_all_local_features {
+	__u8    status;
+	__u8    page;
+	__u8    features[248];
+} __packed;
+
+#define HCI_OP_LE_READ_ALL_REMOTE_FEATURES	0x2088
+struct hci_cp_le_read_all_remote_features {
+	__le16	 handle;
+	__u8	 pages;
+} __packed;
+
 /* ---- HCI Events ---- */
 struct hci_ev_status {
 	__u8    status;
@@ -2800,6 +2854,20 @@ struct hci_evt_le_ext_adv_set_term {
 	__u8	num_evts;
 } __packed;
 
+#define HCI_EV_LE_PAST_RECEIVED		0x18
+struct hci_ev_le_past_received {
+	__u8   status;
+	__le16 handle;
+	__le16 service_data;
+	__le16 sync_handle;
+	__u8   sid;
+	__u8   bdaddr_type;
+	bdaddr_t  bdaddr;
+	__u8   phy;
+	__le16 interval;
+	__u8   clock_accuracy;
+} __packed;
+
 #define HCI_EVT_LE_CIS_ESTABLISHED	0x19
 struct hci_evt_le_cis_established {
 	__u8  status;
@@ -2883,6 +2951,15 @@ struct hci_evt_le_big_info_adv_report {
 	__u8    encryption;
 } __packed;
 
+#define HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE 0x2b
+struct hci_evt_le_read_all_remote_features_complete {
+	__u8    status;
+	__le16  handle;
+	__u8    max_pages;
+	__u8    valid_pages;
+	__u8    features[248];
+} __packed;
+
 #define HCI_EV_VENDOR			0xff
 
 /* Internal events generated by Bluetooth stack */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0cb87687837f..4263e71a23ef 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -166,6 +166,7 @@ enum hci_conn_flags {
 	HCI_CONN_FLAG_REMOTE_WAKEUP = BIT(0),
 	HCI_CONN_FLAG_DEVICE_PRIVACY = BIT(1),
 	HCI_CONN_FLAG_ADDRESS_RESOLUTION = BIT(2),
+	HCI_CONN_FLAG_PAST = BIT(3),
 };
 typedef u8 hci_conn_flags_t;
 
@@ -377,7 +378,7 @@ struct hci_dev {
 	__u8		minor_class;
 	__u8		max_page;
 	__u8		features[HCI_MAX_PAGES][8];
-	__u8		le_features[8];
+	__u8		le_features[248];
 	__u8		le_accept_list_size;
 	__u8		le_resolv_list_size;
 	__u8		le_num_of_adv_sets;
@@ -701,6 +702,7 @@ struct hci_conn {
 	__u8		attempt;
 	__u8		dev_class[3];
 	__u8		features[HCI_MAX_PAGES][8];
+	__u8		le_features[248];
 	__u16		pkt_type;
 	__u16		link_policy;
 	__u8		key_type;
@@ -1570,9 +1572,9 @@ int hci_le_create_cis_pending(struct hci_dev *hdev);
 int hci_conn_check_create_cis(struct hci_conn *conn);
 
 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
-			      u8 role, u16 handle);
+			      u8 dst_type, u8 role, u16 handle);
 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
-				    bdaddr_t *dst, u8 role);
+				    bdaddr_t *dst, u8 dst_type, u8 role);
 void hci_conn_del(struct hci_conn *conn);
 void hci_conn_hash_flush(struct hci_dev *hdev);
 
@@ -1601,6 +1603,7 @@ struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid,
 			      struct bt_iso_qos *qos,
 			      __u8 base_len, __u8 *base, u16 timeout);
+int hci_past_bis(struct hci_conn *conn, bdaddr_t *dst, __u8 dst_type);
 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
 				 __u8 dst_type, struct bt_iso_qos *qos,
 				 u16 timeout);
@@ -2053,6 +2056,20 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 #define sync_recv_capable(dev) \
 	((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
 #define sync_recv_enabled(dev) (le_enabled(dev) && sync_recv_capable(dev))
+#define past_sender_capable(dev) \
+	((dev)->le_features[3] & HCI_LE_PAST_SENDER)
+#define past_receiver_capable(dev) \
+	((dev)->le_features[3] & HCI_LE_PAST_RECEIVER)
+#define past_capable(dev) \
+	(past_sender_capable(dev) || past_receiver_capable(dev))
+#define past_sender_enabled(dev) \
+	(le_enabled(dev) && past_sender_capable(dev))
+#define past_receiver_enabled(dev) \
+	(le_enabled(dev) && past_receiver_capable(dev))
+#define past_enabled(dev) \
+	(past_sender_enabled(dev) || past_receiver_enabled(dev))
+#define ll_ext_feature_capable(dev) \
+	((dev)->le_features[7] & HCI_LE_LL_EXT_FEATURE)
 
 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
 	(!hci_test_quirk((dev), HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG)))
diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h
index e352a4e0ef8d..56076bbc981d 100644
--- a/include/net/bluetooth/hci_sync.h
+++ b/include/net/bluetooth/hci_sync.h
@@ -188,3 +188,6 @@ int hci_le_conn_update_sync(struct hci_dev *hdev, struct hci_conn *conn,
 
 int hci_connect_pa_sync(struct hci_dev *hdev, struct hci_conn *conn);
 int hci_connect_big_sync(struct hci_dev *hdev, struct hci_conn *conn);
+int hci_past_sync(struct hci_conn *conn, struct hci_conn *le);
+
+int hci_le_read_remote_features(struct hci_conn *conn);
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index f5be96f08b9d..8234915854b6 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -119,6 +119,8 @@ struct mgmt_rp_read_index_list {
 #define MGMT_SETTING_ISO_BROADCASTER	BIT(20)
 #define MGMT_SETTING_ISO_SYNC_RECEIVER	BIT(21)
 #define MGMT_SETTING_LL_PRIVACY		BIT(22)
+#define MGMT_SETTING_PAST_SENDER	BIT(23)
+#define MGMT_SETTING_PAST_RECEIVER	BIT(24)
 
 #define MGMT_OP_READ_INFO		0x0004
 #define MGMT_READ_INFO_SIZE		0
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 6fc0692abf05..c3f7828bf9d5 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -922,10 +922,12 @@ static int hci_conn_hash_alloc_unset(struct hci_dev *hdev)
 			       U16_MAX, GFP_ATOMIC);
 }
 
-static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
+static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type,
+				       bdaddr_t *dst, u8 dst_type,
 				       u8 role, u16 handle)
 {
 	struct hci_conn *conn;
+	struct smp_irk *irk = NULL;
 
 	switch (type) {
 	case ACL_LINK:
@@ -937,12 +939,14 @@ static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t
 	case PA_LINK:
 		if (!hdev->iso_mtu)
 			return ERR_PTR(-ECONNREFUSED);
+		irk = hci_get_irk(hdev, dst, dst_type);
 		break;
 	case LE_LINK:
 		if (hdev->le_mtu && hdev->le_mtu < HCI_MIN_LE_MTU)
 			return ERR_PTR(-ECONNREFUSED);
 		if (!hdev->le_mtu && hdev->acl_mtu < HCI_MIN_LE_MTU)
 			return ERR_PTR(-ECONNREFUSED);
+		irk = hci_get_irk(hdev, dst, dst_type);
 		break;
 	case SCO_LINK:
 	case ESCO_LINK:
@@ -960,7 +964,15 @@ static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t
 	if (!conn)
 		return ERR_PTR(-ENOMEM);
 
-	bacpy(&conn->dst, dst);
+	/* If and IRK exists use its identity address */
+	if (!irk) {
+		bacpy(&conn->dst, dst);
+		conn->dst_type = dst_type;
+	} else {
+		bacpy(&conn->dst, &irk->bdaddr);
+		conn->dst_type = irk->addr_type;
+	}
+
 	bacpy(&conn->src, &hdev->bdaddr);
 	conn->handle = handle;
 	conn->hdev  = hdev;
@@ -1059,7 +1071,7 @@ static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t
 }
 
 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
-				    bdaddr_t *dst, u8 role)
+				    bdaddr_t *dst, u8 dst_type, u8 role)
 {
 	int handle;
 
@@ -1069,16 +1081,16 @@ struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
 	if (unlikely(handle < 0))
 		return ERR_PTR(-ECONNREFUSED);
 
-	return __hci_conn_add(hdev, type, dst, role, handle);
+	return __hci_conn_add(hdev, type, dst, dst_type, role, handle);
 }
 
 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
-			      u8 role, u16 handle)
+			      u8 dst_type, u8 role, u16 handle)
 {
 	if (handle > HCI_CONN_HANDLE_MAX)
 		return ERR_PTR(-EINVAL);
 
-	return __hci_conn_add(hdev, type, dst, role, handle);
+	return __hci_conn_add(hdev, type, dst, dst_type, role, handle);
 }
 
 static void hci_conn_cleanup_child(struct hci_conn *conn, u8 reason)
@@ -1410,14 +1422,13 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 	if (conn) {
 		bacpy(&conn->dst, dst);
 	} else {
-		conn = hci_conn_add_unset(hdev, LE_LINK, dst, role);
+		conn = hci_conn_add_unset(hdev, LE_LINK, dst, dst_type, role);
 		if (IS_ERR(conn))
 			return conn;
 		hci_conn_hold(conn);
 		conn->pending_sec_level = sec_level;
 	}
 
-	conn->dst_type = dst_type;
 	conn->sec_level = BT_SECURITY_LOW;
 	conn->conn_timeout = conn_timeout;
 	conn->le_adv_phy = phy;
@@ -1587,7 +1598,7 @@ static struct hci_conn *hci_add_bis(struct hci_dev *hdev, bdaddr_t *dst,
 		     memcmp(conn->le_per_adv_data, base, base_len)))
 		return ERR_PTR(-EADDRINUSE);
 
-	conn = hci_conn_add_unset(hdev, BIS_LINK, dst, HCI_ROLE_MASTER);
+	conn = hci_conn_add_unset(hdev, BIS_LINK, dst, 0, HCI_ROLE_MASTER);
 	if (IS_ERR(conn))
 		return conn;
 
@@ -1633,7 +1644,8 @@ struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
 
 	BT_DBG("requesting refresh of dst_addr");
 
-	conn = hci_conn_add_unset(hdev, LE_LINK, dst, HCI_ROLE_MASTER);
+	conn = hci_conn_add_unset(hdev, LE_LINK, dst, dst_type,
+				  HCI_ROLE_MASTER);
 	if (IS_ERR(conn))
 		return conn;
 
@@ -1644,7 +1656,6 @@ struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
 
 	conn->state = BT_CONNECT;
 	set_bit(HCI_CONN_SCANNING, &conn->flags);
-	conn->dst_type = dst_type;
 	conn->sec_level = BT_SECURITY_LOW;
 	conn->pending_sec_level = sec_level;
 	conn->conn_timeout = conn_timeout;
@@ -1681,7 +1692,8 @@ struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
 
 	acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
 	if (!acl) {
-		acl = hci_conn_add_unset(hdev, ACL_LINK, dst, HCI_ROLE_MASTER);
+		acl = hci_conn_add_unset(hdev, ACL_LINK, dst, 0,
+					 HCI_ROLE_MASTER);
 		if (IS_ERR(acl))
 			return acl;
 	}
@@ -1750,7 +1762,7 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
 
 	sco = hci_conn_hash_lookup_ba(hdev, type, dst);
 	if (!sco) {
-		sco = hci_conn_add_unset(hdev, type, dst, HCI_ROLE_MASTER);
+		sco = hci_conn_add_unset(hdev, type, dst, 0, HCI_ROLE_MASTER);
 		if (IS_ERR(sco)) {
 			hci_conn_drop(acl);
 			return sco;
@@ -1942,7 +1954,7 @@ struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
 	cis = hci_conn_hash_lookup_cis(hdev, dst, dst_type, qos->ucast.cig,
 				       qos->ucast.cis);
 	if (!cis) {
-		cis = hci_conn_add_unset(hdev, CIS_LINK, dst,
+		cis = hci_conn_add_unset(hdev, CIS_LINK, dst, dst_type,
 					 HCI_ROLE_MASTER);
 		if (IS_ERR(cis))
 			return cis;
@@ -2133,12 +2145,11 @@ struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
 
 	bt_dev_dbg(hdev, "dst %pMR type %d sid %d", dst, dst_type, sid);
 
-	conn = hci_conn_add_unset(hdev, PA_LINK, dst, HCI_ROLE_SLAVE);
+	conn = hci_conn_add_unset(hdev, PA_LINK, dst, dst_type, HCI_ROLE_SLAVE);
 	if (IS_ERR(conn))
 		return conn;
 
 	conn->iso_qos = *qos;
-	conn->dst_type = dst_type;
 	conn->sid = sid;
 	conn->state = BT_LISTEN;
 	conn->conn_timeout = msecs_to_jiffies(qos->bcast.sync_timeout * 10);
@@ -2245,6 +2256,18 @@ struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid,
 	return conn;
 }
 
+int hci_past_bis(struct hci_conn *conn, bdaddr_t *dst, __u8 dst_type)
+{
+	struct hci_conn *le;
+
+	/* Lookup existing LE connection to rebind to */
+	le = hci_conn_hash_lookup_le(conn->hdev, dst, dst_type);
+	if (!le)
+		return -EINVAL;
+
+	return hci_past_sync(conn, le);
+}
+
 static void bis_mark_per_adv(struct hci_conn *conn, void *data)
 {
 	struct iso_list_data *d = data;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 3838b90343d9..a9868f17ef40 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2267,7 +2267,7 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
 	} else {
 		if (!conn) {
 			conn = hci_conn_add_unset(hdev, ACL_LINK, &cp->bdaddr,
-						  HCI_ROLE_MASTER);
+						  0, HCI_ROLE_MASTER);
 			if (IS_ERR(conn))
 				bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
 		}
@@ -2886,12 +2886,8 @@ static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
-	if (conn) {
-		if (conn->state == BT_CONFIG) {
-			hci_connect_cfm(conn, status);
-			hci_conn_drop(conn);
-		}
-	}
+	if (conn && conn->state == BT_CONFIG)
+		hci_connect_cfm(conn, status);
 
 	hci_dev_unlock(hdev);
 }
@@ -3123,7 +3119,8 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
 						      &ev->bdaddr,
 						      BDADDR_BREDR)) {
 			conn = hci_conn_add_unset(hdev, ev->link_type,
-						  &ev->bdaddr, HCI_ROLE_SLAVE);
+						  &ev->bdaddr, 0,
+						  HCI_ROLE_SLAVE);
 			if (IS_ERR(conn)) {
 				bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
 				goto unlock;
@@ -3299,7 +3296,7 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
 	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
 			&ev->bdaddr);
 	if (!conn) {
-		conn = hci_conn_add_unset(hdev, ev->link_type, &ev->bdaddr,
+		conn = hci_conn_add_unset(hdev, ev->link_type, &ev->bdaddr, 0,
 					  HCI_ROLE_SLAVE);
 		if (IS_ERR(conn)) {
 			bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
@@ -3914,11 +3911,49 @@ static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
 	return rp->status;
 }
 
+static u8 hci_cc_le_read_all_local_features(struct hci_dev *hdev, void *data,
+					    struct sk_buff *skb)
+{
+	struct hci_rp_le_read_all_local_features *rp = data;
+
+	bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
+
+	if (rp->status)
+		return rp->status;
+
+	memcpy(hdev->le_features, rp->features, 248);
+
+	return rp->status;
+}
+
 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
 {
 	bt_dev_dbg(hdev, "status 0x%2.2x", status);
 }
 
+static void hci_cs_le_read_all_remote_features(struct hci_dev *hdev, u8 status)
+{
+	struct hci_cp_le_read_remote_features *cp;
+	struct hci_conn *conn;
+
+	bt_dev_dbg(hdev, "status 0x%2.2x", status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_ALL_REMOTE_FEATURES);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn && conn->state == BT_CONFIG)
+		hci_connect_cfm(conn, status);
+
+	hci_dev_unlock(hdev);
+}
+
 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
 				   struct sk_buff *skb)
 {
@@ -4170,6 +4205,9 @@ static const struct hci_cc {
 		  sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
 	HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
 	       sizeof(struct hci_rp_le_setup_iso_path)),
+	HCI_CC(HCI_OP_LE_READ_ALL_LOCAL_FEATURES,
+	       hci_cc_le_read_all_local_features,
+	       sizeof(struct hci_rp_le_read_all_local_features)),
 };
 
 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
@@ -4324,6 +4362,8 @@ static const struct hci_cs {
 	HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
 	HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
 	HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
+	HCI_CS(HCI_OP_LE_READ_ALL_REMOTE_FEATURES,
+	       hci_cs_le_read_all_remote_features),
 };
 
 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
@@ -5644,6 +5684,7 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
 	struct hci_conn *conn;
 	struct smp_irk *irk;
 	u8 addr_type;
+	int err;
 
 	hci_dev_lock(hdev);
 
@@ -5670,14 +5711,13 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
 		if (status)
 			goto unlock;
 
-		conn = hci_conn_add_unset(hdev, LE_LINK, bdaddr, role);
+		conn = hci_conn_add_unset(hdev, LE_LINK, bdaddr, bdaddr_type,
+					  role);
 		if (IS_ERR(conn)) {
 			bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
 			goto unlock;
 		}
 
-		conn->dst_type = bdaddr_type;
-
 		/* If we didn't have a hci_conn object previously
 		 * but we're in central role this must be something
 		 * initiated using an accept list. Since accept list based
@@ -5775,26 +5815,8 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
 	hci_debugfs_create_conn(conn);
 	hci_conn_add_sysfs(conn);
 
-	/* The remote features procedure is defined for central
-	 * role only. So only in case of an initiated connection
-	 * request the remote features.
-	 *
-	 * If the local controller supports peripheral-initiated features
-	 * exchange, then requesting the remote features in peripheral
-	 * role is possible. Otherwise just transition into the
-	 * connected state without requesting the remote features.
-	 */
-	if (conn->out ||
-	    (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
-		struct hci_cp_le_read_remote_features cp;
-
-		cp.handle = __cpu_to_le16(conn->handle);
-
-		hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
-			     sizeof(cp), &cp);
-
-		hci_conn_hold(conn);
-	} else {
+	err = hci_le_read_remote_features(conn);
+	if (err) {
 		conn->state = BT_CONNECTED;
 		hci_connect_cfm(conn, status);
 	}
@@ -5936,6 +5958,71 @@ static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
 	hci_dev_unlock(hdev);
 }
 
+static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
+{
+	struct hci_cp_le_pa_term_sync cp;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = handle;
+
+	return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
+}
+
+static void hci_le_past_received_evt(struct hci_dev *hdev, void *data,
+				     struct sk_buff *skb)
+{
+	struct hci_ev_le_past_received *ev = data;
+	int mask = hdev->link_mode;
+	__u8 flags = 0;
+	struct hci_conn *pa_sync, *conn;
+
+	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
+
+	hci_dev_lock(hdev);
+
+	hci_dev_clear_flag(hdev, HCI_PA_SYNC);
+
+	conn = hci_conn_hash_lookup_create_pa_sync(hdev);
+	if (!conn) {
+		bt_dev_err(hdev,
+			   "Unable to find connection for dst %pMR sid 0x%2.2x",
+			   &ev->bdaddr, ev->sid);
+		goto unlock;
+	}
+
+	conn->sync_handle = le16_to_cpu(ev->sync_handle);
+	conn->sid = HCI_SID_INVALID;
+
+	mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, PA_LINK,
+				      &flags);
+	if (!(mask & HCI_LM_ACCEPT)) {
+		hci_le_pa_term_sync(hdev, ev->sync_handle);
+		goto unlock;
+	}
+
+	if (!(flags & HCI_PROTO_DEFER))
+		goto unlock;
+
+	/* Add connection to indicate PA sync event */
+	pa_sync = hci_conn_add_unset(hdev, PA_LINK, BDADDR_ANY, 0,
+				     HCI_ROLE_SLAVE);
+
+	if (IS_ERR(pa_sync))
+		goto unlock;
+
+	pa_sync->sync_handle = le16_to_cpu(ev->sync_handle);
+
+	if (ev->status) {
+		set_bit(HCI_CONN_PA_SYNC_FAILED, &pa_sync->flags);
+
+		/* Notify iso layer */
+		hci_connect_cfm(pa_sync, ev->status);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
 					    struct sk_buff *skb)
 {
@@ -6412,16 +6499,6 @@ static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
 	hci_dev_unlock(hdev);
 }
 
-static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
-{
-	struct hci_cp_le_pa_term_sync cp;
-
-	memset(&cp, 0, sizeof(cp));
-	cp.handle = handle;
-
-	return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
-}
-
 static void hci_le_pa_sync_established_evt(struct hci_dev *hdev, void *data,
 					   struct sk_buff *skb)
 {
@@ -6460,7 +6537,7 @@ static void hci_le_pa_sync_established_evt(struct hci_dev *hdev, void *data,
 		goto unlock;
 
 	/* Add connection to indicate PA sync event */
-	pa_sync = hci_conn_add_unset(hdev, PA_LINK, BDADDR_ANY,
+	pa_sync = hci_conn_add_unset(hdev, PA_LINK, BDADDR_ANY, 0,
 				     HCI_ROLE_SLAVE);
 
 	if (IS_ERR(pa_sync))
@@ -6553,7 +6630,6 @@ static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
 
 			conn->state = BT_CONNECTED;
 			hci_connect_cfm(conn, status);
-			hci_conn_drop(conn);
 		}
 	}
 
@@ -6901,7 +6977,7 @@ static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
 
 	cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
 	if (!cis) {
-		cis = hci_conn_add(hdev, CIS_LINK, &acl->dst,
+		cis = hci_conn_add(hdev, CIS_LINK, &acl->dst, acl->dst_type,
 				   HCI_ROLE_SLAVE, cis_handle);
 		if (IS_ERR(cis)) {
 			hci_le_reject_cis(hdev, ev->cis_handle);
@@ -7018,7 +7094,7 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
 				bt_dev_dbg(hdev, "ignore too large handle %u", handle);
 				continue;
 			}
-			bis = hci_conn_add(hdev, BIS_LINK, BDADDR_ANY,
+			bis = hci_conn_add(hdev, BIS_LINK, BDADDR_ANY, 0,
 					   HCI_ROLE_SLAVE, handle);
 			if (IS_ERR(bis))
 				continue;
@@ -7131,6 +7207,50 @@ static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
 	hci_dev_unlock(hdev);
 }
 
+static void hci_le_read_all_remote_features_evt(struct hci_dev *hdev,
+						void *data, struct sk_buff *skb)
+{
+	struct hci_evt_le_read_all_remote_features_complete *ev = data;
+	struct hci_conn *conn;
+
+	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	if (!ev->status)
+		memcpy(conn->le_features, ev->features, 248);
+
+	if (conn->state == BT_CONFIG) {
+		__u8 status;
+
+		/* If the local controller supports peripheral-initiated
+		 * features exchange, but the remote controller does
+		 * not, then it is possible that the error code 0x1a
+		 * for unsupported remote feature gets returned.
+		 *
+		 * In this specific case, allow the connection to
+		 * transition into connected state and mark it as
+		 * successful.
+		 */
+		if (!conn->out &&
+		    ev->status == HCI_ERROR_UNSUPPORTED_REMOTE_FEATURE &&
+		    (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
+			status = 0x00;
+		else
+			status = ev->status;
+
+		conn->state = BT_CONNECTED;
+		hci_connect_cfm(conn, status);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
 [_op] = { \
 	.func = _func, \
@@ -7206,6 +7326,10 @@ static const struct hci_le_ev {
 	/* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
 	HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
 		  sizeof(struct hci_evt_le_ext_adv_set_term)),
+	/* [0x18 = HCI_EVT_LE_PAST_RECEIVED] */
+	HCI_LE_EV(HCI_EV_LE_PAST_RECEIVED,
+		  hci_le_past_received_evt,
+		  sizeof(struct hci_ev_le_past_received)),
 	/* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
 	HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_established_evt,
 		  sizeof(struct hci_evt_le_cis_established)),
@@ -7232,6 +7356,12 @@ static const struct hci_le_ev {
 		     hci_le_big_info_adv_report_evt,
 		     sizeof(struct hci_evt_le_big_info_adv_report),
 		     HCI_MAX_EVENT_SIZE),
+	/* [0x2b = HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE] */
+	HCI_LE_EV_VL(HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE,
+		     hci_le_read_all_remote_features_evt,
+		     sizeof(struct
+			    hci_evt_le_read_all_remote_features_complete),
+		     HCI_MAX_EVENT_SIZE),
 };
 
 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 6e76798ec786..a9f5b1a68356 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -4011,8 +4011,19 @@ static int hci_le_read_buffer_size_sync(struct hci_dev *hdev)
 /* Read LE Local Supported Features */
 static int hci_le_read_local_features_sync(struct hci_dev *hdev)
 {
-	return __hci_cmd_sync_status(hdev, HCI_OP_LE_READ_LOCAL_FEATURES,
-				     0, NULL, HCI_CMD_TIMEOUT);
+	int err;
+
+	err = __hci_cmd_sync_status(hdev, HCI_OP_LE_READ_LOCAL_FEATURES,
+				    0, NULL, HCI_CMD_TIMEOUT);
+	if (err)
+		return err;
+
+	if (ll_ext_feature_capable(hdev) && hdev->commands[47] & BIT(2))
+		return __hci_cmd_sync_status(hdev,
+					     HCI_OP_LE_READ_ALL_LOCAL_FEATURES,
+					     0, NULL, HCI_CMD_TIMEOUT);
+
+	return err;
 }
 
 /* Read LE Supported States */
@@ -4324,6 +4335,10 @@ static int hci_le_set_event_mask_sync(struct hci_dev *hdev)
 	if (ll_privacy_capable(hdev))
 		hdev->conn_flags |= HCI_CONN_FLAG_ADDRESS_RESOLUTION;
 
+	/* Mark PAST if supported */
+	if (past_capable(hdev))
+		hdev->conn_flags |= HCI_CONN_FLAG_PAST;
+
 	/* If the controller supports Extended Scanner Filter
 	 * Policies, enable the corresponding event.
 	 */
@@ -4393,6 +4408,9 @@ static int hci_le_set_event_mask_sync(struct hci_dev *hdev)
 	if (ext_adv_capable(hdev))
 		events[2] |= 0x02;	/* LE Advertising Set Terminated */
 
+	if (past_receiver_capable(hdev))
+		events[2] |= 0x80;	/* LE PAST Received */
+
 	if (cis_capable(hdev)) {
 		events[3] |= 0x01;	/* LE CIS Established */
 		if (cis_peripheral_capable(hdev))
@@ -7006,7 +7024,7 @@ static void create_pa_complete(struct hci_dev *hdev, void *data, int err)
 		goto unlock;
 
 	/* Add connection to indicate PA sync error */
-	pa_sync = hci_conn_add_unset(hdev, PA_LINK, BDADDR_ANY,
+	pa_sync = hci_conn_add_unset(hdev, PA_LINK, BDADDR_ANY, 0,
 				     HCI_ROLE_SLAVE);
 
 	if (IS_ERR(pa_sync))
@@ -7021,10 +7039,41 @@ static void create_pa_complete(struct hci_dev *hdev, void *data, int err)
 	hci_dev_unlock(hdev);
 }
 
+static int hci_le_past_params_sync(struct hci_dev *hdev, struct hci_conn *conn,
+				   struct hci_conn *acl, struct bt_iso_qos *qos)
+{
+	struct hci_cp_le_past_params cp;
+	int err;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = cpu_to_le16(acl->handle);
+	/* An HCI_LE_Periodic_Advertising_Sync_Transfer_Received event is sent
+	 * to the Host. HCI_LE_Periodic_Advertising_Report events will be
+	 * enabled with duplicate filtering enabled.
+	 */
+	cp.mode = 0x03;
+	cp.skip = cpu_to_le16(qos->bcast.skip);
+	cp.sync_timeout = cpu_to_le16(qos->bcast.sync_timeout);
+	cp.cte_type = qos->bcast.sync_cte_type;
+
+	/* HCI_LE_PAST_PARAMS command returns a command complete event so it
+	 * cannot wait for HCI_EV_LE_PAST_RECEIVED.
+	 */
+	err = __hci_cmd_sync_status(hdev, HCI_OP_LE_PAST_PARAMS,
+				    sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+	if (err)
+		return err;
+
+	/* Wait for HCI_EV_LE_PAST_RECEIVED event */
+	return __hci_cmd_sync_status_sk(hdev, HCI_OP_NOP, 0, NULL,
+					HCI_EV_LE_PAST_RECEIVED,
+					conn->conn_timeout, NULL);
+}
+
 static int hci_le_pa_create_sync(struct hci_dev *hdev, void *data)
 {
 	struct hci_cp_le_pa_create_sync cp;
-	struct hci_conn *conn = data;
+	struct hci_conn *conn = data, *le;
 	struct bt_iso_qos *qos = &conn->iso_qos;
 	int err;
 
@@ -7056,6 +7105,24 @@ static int hci_le_pa_create_sync(struct hci_dev *hdev, void *data)
 
 	hci_update_passive_scan_sync(hdev);
 
+	/* Check if PAST is possible:
+	 *
+	 * 1. Check if an ACL connection with the destination address exists
+	 * 2. Check if that HCI_CONN_FLAG_PAST has been set which indicates that
+	 *    user really intended to use PAST.
+	 */
+	le = hci_conn_hash_lookup_le(hdev, &conn->dst, conn->dst_type);
+	if (le) {
+		struct hci_conn_params *params;
+
+		params = hci_conn_params_lookup(hdev, &le->dst, le->dst_type);
+		if (params && params->flags & HCI_CONN_FLAG_PAST) {
+			err = hci_le_past_params_sync(hdev, conn, le, qos);
+			if (!err)
+				goto done;
+		}
+	}
+
 	/* SID has not been set listen for HCI_EV_LE_EXT_ADV_REPORT to update
 	 * it.
 	 */
@@ -7172,3 +7239,182 @@ int hci_connect_big_sync(struct hci_dev *hdev, struct hci_conn *conn)
 	return hci_cmd_sync_queue_once(hdev, hci_le_big_create_sync, conn,
 				       create_big_complete);
 }
+
+struct past_data {
+	struct hci_conn *conn;
+	struct hci_conn *le;
+};
+
+static void past_complete(struct hci_dev *hdev, void *data, int err)
+{
+	struct past_data *past = data;
+
+	bt_dev_dbg(hdev, "err %d", err);
+
+	kfree(past);
+}
+
+static int hci_le_past_set_info_sync(struct hci_dev *hdev, void *data)
+{
+	struct past_data *past = data;
+	struct hci_cp_le_past_set_info cp;
+
+	hci_dev_lock(hdev);
+
+	if (!hci_conn_valid(hdev, past->conn) ||
+	    !hci_conn_valid(hdev, past->le)) {
+		hci_dev_unlock(hdev);
+		return -ECANCELED;
+	}
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = cpu_to_le16(past->le->handle);
+	cp.adv_handle = past->conn->iso_qos.bcast.bis;
+
+	hci_dev_unlock(hdev);
+
+	return __hci_cmd_sync_status(hdev, HCI_OP_LE_PAST_SET_INFO,
+				     sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+static int hci_le_past_sync(struct hci_dev *hdev, void *data)
+{
+	struct past_data *past = data;
+	struct hci_cp_le_past cp;
+
+	hci_dev_lock(hdev);
+
+	if (!hci_conn_valid(hdev, past->conn) ||
+	    !hci_conn_valid(hdev, past->le)) {
+		hci_dev_unlock(hdev);
+		return -ECANCELED;
+	}
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = cpu_to_le16(past->le->handle);
+	cp.sync_handle = cpu_to_le16(past->conn->sync_handle);
+
+	hci_dev_unlock(hdev);
+
+	return __hci_cmd_sync_status(hdev, HCI_OP_LE_PAST,
+				     sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+int hci_past_sync(struct hci_conn *conn, struct hci_conn *le)
+{
+	struct past_data *data;
+	int err;
+
+	if (conn->type != BIS_LINK && conn->type != PA_LINK)
+		return -EINVAL;
+
+	if (!past_sender_capable(conn->hdev))
+		return -EOPNOTSUPP;
+
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->conn = conn;
+	data->le = le;
+
+	if (conn->role == HCI_ROLE_MASTER)
+		err = hci_cmd_sync_queue_once(conn->hdev,
+					      hci_le_past_set_info_sync, data,
+					      past_complete);
+	else
+		err = hci_cmd_sync_queue_once(conn->hdev, hci_le_past_sync,
+					      data, past_complete);
+
+	if (err)
+		kfree(data);
+
+	return err;
+}
+
+static void le_read_features_complete(struct hci_dev *hdev, void *data, int err)
+{
+	struct hci_conn *conn = data;
+
+	bt_dev_dbg(hdev, "err %d", err);
+
+	if (err == -ECANCELED)
+		return;
+
+	hci_conn_drop(conn);
+}
+
+static int hci_le_read_all_remote_features_sync(struct hci_dev *hdev,
+						void *data)
+{
+	struct hci_conn *conn = data;
+	struct hci_cp_le_read_all_remote_features cp;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = cpu_to_le16(conn->handle);
+	cp.pages = 10; /* Attempt to read all pages */
+
+	/* Wait for HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE event otherwise
+	 * hci_conn_drop may run prematurely causing a disconnection.
+	 */
+	return __hci_cmd_sync_status_sk(hdev,
+					HCI_OP_LE_READ_ALL_REMOTE_FEATURES,
+					sizeof(cp), &cp,
+					HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE,
+					HCI_CMD_TIMEOUT, NULL);
+
+	return __hci_cmd_sync_status(hdev, HCI_OP_LE_READ_ALL_REMOTE_FEATURES,
+				     sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+static int hci_le_read_remote_features_sync(struct hci_dev *hdev, void *data)
+{
+	struct hci_conn *conn = data;
+	struct hci_cp_le_read_remote_features cp;
+
+	if (!hci_conn_valid(hdev, conn))
+		return -ECANCELED;
+
+	/* Check if LL Extended Feature Set is supported and
+	 * HCI_OP_LE_READ_ALL_REMOTE_FEATURES is supported then use that to read
+	 * all features.
+	 */
+	if (ll_ext_feature_capable(hdev) && hdev->commands[47] & BIT(3))
+		return hci_le_read_all_remote_features_sync(hdev, data);
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = cpu_to_le16(conn->handle);
+
+	/* Wait for HCI_EV_LE_REMOTE_FEAT_COMPLETE event otherwise
+	 * hci_conn_drop may run prematurely causing a disconnection.
+	 */
+	return __hci_cmd_sync_status_sk(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
+					sizeof(cp), &cp,
+					HCI_EV_LE_REMOTE_FEAT_COMPLETE,
+					HCI_CMD_TIMEOUT, NULL);
+}
+
+int hci_le_read_remote_features(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	int err;
+
+	/* The remote features procedure is defined for central
+	 * role only. So only in case of an initiated connection
+	 * request the remote features.
+	 *
+	 * If the local controller supports peripheral-initiated features
+	 * exchange, then requesting the remote features in peripheral
+	 * role is possible. Otherwise just transition into the
+	 * connected state without requesting the remote features.
+	 */
+	if (conn->out || (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
+		err = hci_cmd_sync_queue_once(hdev,
+					      hci_le_read_remote_features_sync,
+					      hci_conn_hold(conn),
+					      le_read_features_complete);
+	else
+		err = -EOPNOTSUPP;
+
+	return err;
+}
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 5859ec1c04dd..e36d24a9098b 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -80,14 +80,15 @@ static struct bt_iso_qos default_qos;
 static bool check_ucast_qos(struct bt_iso_qos *qos);
 static bool check_bcast_qos(struct bt_iso_qos *qos);
 static bool iso_match_sid(struct sock *sk, void *data);
+static bool iso_match_sid_past(struct sock *sk, void *data);
 static bool iso_match_sync_handle(struct sock *sk, void *data);
 static bool iso_match_sync_handle_pa_report(struct sock *sk, void *data);
 static void iso_sock_disconn(struct sock *sk);
 
 typedef bool (*iso_sock_match_t)(struct sock *sk, void *data);
 
-static struct sock *iso_get_sock(bdaddr_t *src, bdaddr_t *dst,
-				 enum bt_sock_state state,
+static struct sock *iso_get_sock(struct hci_dev *hdev, bdaddr_t *src,
+				 bdaddr_t *dst, enum bt_sock_state state,
 				 iso_sock_match_t match, void *data);
 
 /* ---- ISO timers ---- */
@@ -637,8 +638,8 @@ static struct sock *__iso_get_sock_listen_by_sid(bdaddr_t *ba, bdaddr_t *bc,
  * match func data - pass -1 to ignore
  * Returns closest match.
  */
-static struct sock *iso_get_sock(bdaddr_t *src, bdaddr_t *dst,
-				 enum bt_sock_state state,
+static struct sock *iso_get_sock(struct hci_dev *hdev, bdaddr_t *src,
+				 bdaddr_t *dst, enum bt_sock_state state,
 				 iso_sock_match_t match, void *data)
 {
 	struct sock *sk = NULL, *sk1 = NULL;
@@ -650,8 +651,25 @@ static struct sock *iso_get_sock(bdaddr_t *src, bdaddr_t *dst,
 			continue;
 
 		/* Match Broadcast destination */
-		if (bacmp(dst, BDADDR_ANY) && bacmp(&iso_pi(sk)->dst, dst))
-			continue;
+		if (bacmp(dst, BDADDR_ANY) && bacmp(&iso_pi(sk)->dst, dst)) {
+			struct smp_irk *irk1, *irk2;
+
+			/* Check if destination is an RPA that we can resolve */
+			irk1 = hci_find_irk_by_rpa(hdev, dst);
+			if (!irk1)
+				continue;
+
+			/* Match with identity address */
+			if (bacmp(&iso_pi(sk)->dst, &irk1->bdaddr)) {
+				/* Check if socket destination address is also
+				 * an RPA and if the IRK matches.
+				 */
+				irk2 = hci_find_irk_by_rpa(hdev,
+							   &iso_pi(sk)->dst);
+				if (!irk2 || irk1 != irk2)
+					continue;
+			}
+		}
 
 		/* Use Match function if provided */
 		if (match && !match(sk, data))
@@ -986,20 +1004,14 @@ static int iso_sock_bind_bc(struct socket *sock, struct sockaddr_unsized *addr,
 	return 0;
 }
 
-static int iso_sock_bind_pa_sk(struct sock *sk, struct sockaddr_iso *sa,
+/* Must be called on the locked socket. */
+static int iso_sock_rebind_bis(struct sock *sk, struct sockaddr_iso *sa,
 			       int addr_len)
 {
 	int err = 0;
 
-	if (sk->sk_type != SOCK_SEQPACKET) {
-		err = -EINVAL;
-		goto done;
-	}
-
-	if (addr_len != sizeof(*sa) + sizeof(*sa->iso_bc)) {
-		err = -EINVAL;
-		goto done;
-	}
+	if (!test_bit(BT_SK_PA_SYNC, &iso_pi(sk)->flags))
+		return -EBADFD;
 
 	if (sa->iso_bc->bc_num_bis > ISO_MAX_NUM_BIS) {
 		err = -EINVAL;
@@ -1022,6 +1034,77 @@ static int iso_sock_bind_pa_sk(struct sock *sk, struct sockaddr_iso *sa,
 	return err;
 }
 
+static struct hci_dev *iso_conn_get_hdev(struct iso_conn *conn)
+{
+	struct hci_dev *hdev = NULL;
+
+	iso_conn_lock(conn);
+	if (conn->hcon)
+		hdev = hci_dev_hold(conn->hcon->hdev);
+	iso_conn_unlock(conn);
+
+	return hdev;
+}
+
+/* Must be called on the locked socket. */
+static int iso_sock_rebind_bc(struct sock *sk, struct sockaddr_iso *sa,
+			      int addr_len)
+{
+	struct hci_dev *hdev;
+	struct hci_conn *bis;
+	int err;
+
+	if (sk->sk_type != SOCK_SEQPACKET || !iso_pi(sk)->conn)
+		return -EINVAL;
+
+	/* Check if it is really a Broadcast address being requested */
+	if (addr_len != sizeof(*sa) + sizeof(*sa->iso_bc))
+		return -EINVAL;
+
+	/* Check if the address hasn't changed then perhaps only the number of
+	 * bis has changed.
+	 */
+	if (!bacmp(&iso_pi(sk)->dst, &sa->iso_bc->bc_bdaddr) ||
+	    !bacmp(&sa->iso_bc->bc_bdaddr, BDADDR_ANY))
+		return iso_sock_rebind_bis(sk, sa, addr_len);
+
+	/* Check if the address type is of LE type */
+	if (!bdaddr_type_is_le(sa->iso_bc->bc_bdaddr_type))
+		return -EINVAL;
+
+	hdev = iso_conn_get_hdev(iso_pi(sk)->conn);
+	if (!hdev)
+		return -EINVAL;
+
+	bis = iso_pi(sk)->conn->hcon;
+
+	/* Release the socket before lookups since that requires hci_dev_lock
+	 * which shall not be acquired while holding sock_lock for proper
+	 * ordering.
+	 */
+	release_sock(sk);
+	hci_dev_lock(bis->hdev);
+	lock_sock(sk);
+
+	if (!iso_pi(sk)->conn || iso_pi(sk)->conn->hcon != bis) {
+		/* raced with iso_conn_del() or iso_disconn_sock() */
+		err = -ENOTCONN;
+		goto unlock;
+	}
+
+	BT_DBG("sk %p %pMR type %u", sk, &sa->iso_bc->bc_bdaddr,
+	       sa->iso_bc->bc_bdaddr_type);
+
+	err = hci_past_bis(bis, &sa->iso_bc->bc_bdaddr,
+			   le_addr_type(sa->iso_bc->bc_bdaddr_type));
+
+unlock:
+	hci_dev_unlock(hdev);
+	hci_dev_put(hdev);
+
+	return err;
+}
+
 static int iso_sock_bind(struct socket *sock, struct sockaddr_unsized *addr,
 			 int addr_len)
 {
@@ -1037,13 +1120,12 @@ static int iso_sock_bind(struct socket *sock, struct sockaddr_unsized *addr,
 
 	lock_sock(sk);
 
-	/* Allow the user to bind a PA sync socket to a number
-	 * of BISes to sync to.
-	 */
-	if ((sk->sk_state == BT_CONNECT2 ||
-	     sk->sk_state == BT_CONNECTED) &&
-	    test_bit(BT_SK_PA_SYNC, &iso_pi(sk)->flags)) {
-		err = iso_sock_bind_pa_sk(sk, sa, addr_len);
+	if ((sk->sk_state == BT_CONNECT2 || sk->sk_state == BT_CONNECTED) &&
+	    addr_len > sizeof(*sa)) {
+		/* Allow the user to rebind to a different address using
+		 * PAST procedures.
+		 */
+		err = iso_sock_rebind_bc(sk, sa, addr_len);
 		goto done;
 	}
 
@@ -1939,6 +2021,11 @@ static bool iso_match_pa_sync_flag(struct sock *sk, void *data)
 	return test_bit(BT_SK_PA_SYNC, &iso_pi(sk)->flags);
 }
 
+static bool iso_match_dst(struct sock *sk, void *data)
+{
+	return !bacmp(&iso_pi(sk)->dst, (bdaddr_t *)data);
+}
+
 static void iso_conn_ready(struct iso_conn *conn)
 {
 	struct sock *parent = NULL;
@@ -1947,23 +2034,45 @@ static void iso_conn_ready(struct iso_conn *conn)
 	struct hci_ev_le_pa_sync_established *ev2 = NULL;
 	struct hci_ev_le_per_adv_report *ev3 = NULL;
 	struct hci_conn *hcon;
+	struct hci_dev *hdev;
 
 	BT_DBG("conn %p", conn);
 
 	if (sk) {
+		/* Attempt to update source address in case of BIS Sender if
+		 * the advertisement is using a random address.
+		 */
+		if (conn->hcon->type == BIS_LINK &&
+		    conn->hcon->role == HCI_ROLE_MASTER &&
+		    !bacmp(&conn->hcon->dst, BDADDR_ANY)) {
+			struct hci_conn *bis = conn->hcon;
+			struct adv_info *adv;
+
+			adv = hci_find_adv_instance(bis->hdev,
+						    bis->iso_qos.bcast.bis);
+			if (adv && bacmp(&adv->random_addr, BDADDR_ANY)) {
+				lock_sock(sk);
+				iso_pi(sk)->src_type = BDADDR_LE_RANDOM;
+				bacpy(&iso_pi(sk)->src, &adv->random_addr);
+				release_sock(sk);
+			}
+		}
+
 		iso_sock_ready(conn->sk);
 	} else {
 		hcon = conn->hcon;
 		if (!hcon)
 			return;
 
+		hdev = hcon->hdev;
+
 		if (test_bit(HCI_CONN_BIG_SYNC, &hcon->flags)) {
 			/* A BIS slave hcon is notified to the ISO layer
 			 * after the Command Complete for the LE Setup
 			 * ISO Data Path command is received. Get the
 			 * parent socket that matches the hcon BIG handle.
 			 */
-			parent = iso_get_sock(&hcon->src, &hcon->dst,
+			parent = iso_get_sock(hdev, &hcon->src, &hcon->dst,
 					      BT_LISTEN, iso_match_big_hcon,
 					      hcon);
 		} else if (test_bit(HCI_CONN_BIG_SYNC_FAILED, &hcon->flags)) {
@@ -1971,12 +2080,12 @@ static void iso_conn_ready(struct iso_conn *conn)
 						 HCI_EVT_LE_BIG_SYNC_ESTABLISHED);
 
 			/* Get reference to PA sync parent socket, if it exists */
-			parent = iso_get_sock(&hcon->src, &hcon->dst,
+			parent = iso_get_sock(hdev, &hcon->src, &hcon->dst,
 					      BT_LISTEN,
 					      iso_match_pa_sync_flag,
 					      NULL);
 			if (!parent && ev)
-				parent = iso_get_sock(&hcon->src,
+				parent = iso_get_sock(hdev, &hcon->src,
 						      &hcon->dst,
 						      BT_LISTEN,
 						      iso_match_big, ev);
@@ -1984,7 +2093,7 @@ static void iso_conn_ready(struct iso_conn *conn)
 			ev2 = hci_recv_event_data(hcon->hdev,
 						  HCI_EV_LE_PA_SYNC_ESTABLISHED);
 			if (ev2)
-				parent = iso_get_sock(&hcon->src,
+				parent = iso_get_sock(hdev, &hcon->src,
 						      &hcon->dst,
 						      BT_LISTEN,
 						      iso_match_sid, ev2);
@@ -1992,7 +2101,7 @@ static void iso_conn_ready(struct iso_conn *conn)
 			ev3 = hci_recv_event_data(hcon->hdev,
 						  HCI_EV_LE_PER_ADV_REPORT);
 			if (ev3)
-				parent = iso_get_sock(&hcon->src,
+				parent = iso_get_sock(hdev, &hcon->src,
 						      &hcon->dst,
 						      BT_LISTEN,
 						      iso_match_sync_handle_pa_report,
@@ -2000,8 +2109,8 @@ static void iso_conn_ready(struct iso_conn *conn)
 		}
 
 		if (!parent)
-			parent = iso_get_sock(&hcon->src, BDADDR_ANY,
-					      BT_LISTEN, NULL, NULL);
+			parent = iso_get_sock(hdev, &hcon->src, BDADDR_ANY,
+					      BT_LISTEN, iso_match_dst, BDADDR_ANY);
 
 		if (!parent)
 			return;
@@ -2090,6 +2199,16 @@ static bool iso_match_sid(struct sock *sk, void *data)
 	return ev->sid == iso_pi(sk)->bc_sid;
 }
 
+static bool iso_match_sid_past(struct sock *sk, void *data)
+{
+	struct hci_ev_le_past_received *ev = data;
+
+	if (iso_pi(sk)->bc_sid == HCI_SID_INVALID)
+		return true;
+
+	return ev->sid == iso_pi(sk)->bc_sid;
+}
+
 static bool iso_match_sync_handle(struct sock *sk, void *data)
 {
 	struct hci_evt_le_big_info_adv_report *ev = data;
@@ -2109,6 +2228,7 @@ static bool iso_match_sync_handle_pa_report(struct sock *sk, void *data)
 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 {
 	struct hci_ev_le_pa_sync_established *ev1;
+	struct hci_ev_le_past_received *ev1a;
 	struct hci_evt_le_big_info_adv_report *ev2;
 	struct hci_ev_le_per_adv_report *ev3;
 	struct sock *sk;
@@ -2122,6 +2242,7 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 	 * SID to listen to and once sync is established its handle needs to
 	 * be stored in iso_pi(sk)->sync_handle so it can be matched once
 	 * receiving the BIG Info.
+	 * 1a. HCI_EV_LE_PAST_RECEIVED: alternative to 1.
 	 * 2. HCI_EVT_LE_BIG_INFO_ADV_REPORT: When connect_ind is triggered by a
 	 * a BIG Info it attempts to check if there any listening socket with
 	 * the same sync_handle and if it does then attempt to create a sync.
@@ -2131,7 +2252,7 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 	 */
 	ev1 = hci_recv_event_data(hdev, HCI_EV_LE_PA_SYNC_ESTABLISHED);
 	if (ev1) {
-		sk = iso_get_sock(&hdev->bdaddr, bdaddr, BT_LISTEN,
+		sk = iso_get_sock(hdev, &hdev->bdaddr, bdaddr, BT_LISTEN,
 				  iso_match_sid, ev1);
 		if (sk && !ev1->status) {
 			iso_pi(sk)->sync_handle = le16_to_cpu(ev1->handle);
@@ -2141,10 +2262,22 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 		goto done;
 	}
 
+	ev1a = hci_recv_event_data(hdev, HCI_EV_LE_PAST_RECEIVED);
+	if (ev1a) {
+		sk = iso_get_sock(hdev, &hdev->bdaddr, bdaddr, BT_LISTEN,
+				  iso_match_sid_past, ev1a);
+		if (sk && !ev1a->status) {
+			iso_pi(sk)->sync_handle = le16_to_cpu(ev1a->sync_handle);
+			iso_pi(sk)->bc_sid = ev1a->sid;
+		}
+
+		goto done;
+	}
+
 	ev2 = hci_recv_event_data(hdev, HCI_EVT_LE_BIG_INFO_ADV_REPORT);
 	if (ev2) {
 		/* Check if BIGInfo report has already been handled */
-		sk = iso_get_sock(&hdev->bdaddr, bdaddr, BT_CONNECTED,
+		sk = iso_get_sock(hdev, &hdev->bdaddr, bdaddr, BT_CONNECTED,
 				  iso_match_sync_handle, ev2);
 		if (sk) {
 			sock_put(sk);
@@ -2153,10 +2286,10 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 		}
 
 		/* Try to get PA sync socket, if it exists */
-		sk = iso_get_sock(&hdev->bdaddr, bdaddr, BT_CONNECT2,
+		sk = iso_get_sock(hdev, &hdev->bdaddr, bdaddr, BT_CONNECT2,
 				  iso_match_sync_handle, ev2);
 		if (!sk)
-			sk = iso_get_sock(&hdev->bdaddr, bdaddr,
+			sk = iso_get_sock(hdev, &hdev->bdaddr, bdaddr,
 					  BT_LISTEN,
 					  iso_match_sync_handle,
 					  ev2);
@@ -2195,7 +2328,7 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 		u8 *base;
 		struct hci_conn *hcon;
 
-		sk = iso_get_sock(&hdev->bdaddr, bdaddr, BT_LISTEN,
+		sk = iso_get_sock(hdev, &hdev->bdaddr, bdaddr, BT_LISTEN,
 				  iso_match_sync_handle_pa_report, ev3);
 		if (!sk)
 			goto done;
@@ -2245,8 +2378,8 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 			hcon->le_per_adv_data_len = 0;
 		}
 	} else {
-		sk = iso_get_sock(&hdev->bdaddr, BDADDR_ANY,
-				  BT_LISTEN, NULL, NULL);
+		sk = iso_get_sock(hdev, &hdev->bdaddr, BDADDR_ANY,
+				  BT_LISTEN, iso_match_dst, BDADDR_ANY);
 	}
 
 done:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 262bf984d2aa..c11cdef42b6f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -852,6 +852,12 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 	if (ll_privacy_capable(hdev))
 		settings |= MGMT_SETTING_LL_PRIVACY;
 
+	if (past_sender_capable(hdev))
+		settings |= MGMT_SETTING_PAST_SENDER;
+
+	if (past_receiver_capable(hdev))
+		settings |= MGMT_SETTING_PAST_RECEIVER;
+
 	settings |= MGMT_SETTING_PHY_CONFIGURATION;
 
 	return settings;
@@ -937,6 +943,12 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (ll_privacy_enabled(hdev))
 		settings |= MGMT_SETTING_LL_PRIVACY;
 
+	if (past_sender_enabled(hdev))
+		settings |= MGMT_SETTING_PAST_SENDER;
+
+	if (past_receiver_enabled(hdev))
+		settings |= MGMT_SETTING_PAST_RECEIVER;
+
 	return settings;
 }
 
@@ -5110,6 +5122,69 @@ static void device_flags_changed(struct sock *sk, struct hci_dev *hdev,
 	mgmt_event(MGMT_EV_DEVICE_FLAGS_CHANGED, hdev, &ev, sizeof(ev), sk);
 }
 
+static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
+{
+	struct hci_conn *conn;
+
+	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
+	if (!conn)
+		return false;
+
+	if (conn->dst_type != type)
+		return false;
+
+	if (conn->state != BT_CONNECTED)
+		return false;
+
+	return true;
+}
+
+/* This function requires the caller holds hdev->lock */
+static struct hci_conn_params *hci_conn_params_set(struct hci_dev *hdev,
+						   bdaddr_t *addr, u8 addr_type,
+						   u8 auto_connect)
+{
+	struct hci_conn_params *params;
+
+	params = hci_conn_params_add(hdev, addr, addr_type);
+	if (!params)
+		return NULL;
+
+	if (params->auto_connect == auto_connect)
+		return params;
+
+	hci_pend_le_list_del_init(params);
+
+	switch (auto_connect) {
+	case HCI_AUTO_CONN_DISABLED:
+	case HCI_AUTO_CONN_LINK_LOSS:
+		/* If auto connect is being disabled when we're trying to
+		 * connect to device, keep connecting.
+		 */
+		if (params->explicit_connect)
+			hci_pend_le_list_add(params, &hdev->pend_le_conns);
+		break;
+	case HCI_AUTO_CONN_REPORT:
+		if (params->explicit_connect)
+			hci_pend_le_list_add(params, &hdev->pend_le_conns);
+		else
+			hci_pend_le_list_add(params, &hdev->pend_le_reports);
+		break;
+	case HCI_AUTO_CONN_DIRECT:
+	case HCI_AUTO_CONN_ALWAYS:
+		if (!is_connected(hdev, addr, addr_type))
+			hci_pend_le_list_add(params, &hdev->pend_le_conns);
+		break;
+	}
+
+	params->auto_connect = auto_connect;
+
+	bt_dev_dbg(hdev, "addr %pMR (type %u) auto_connect %u",
+		   addr, addr_type, auto_connect);
+
+	return params;
+}
+
 static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
 			    u16 len)
 {
@@ -5153,9 +5228,16 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
 	params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
 					le_addr_type(cp->addr.type));
 	if (!params) {
-		bt_dev_warn(hdev, "No such LE device %pMR (0x%x)",
-			    &cp->addr.bdaddr, le_addr_type(cp->addr.type));
-		goto unlock;
+		/* Create a new hci_conn_params if it doesn't exist */
+		params = hci_conn_params_set(hdev, &cp->addr.bdaddr,
+					     le_addr_type(cp->addr.type),
+					     HCI_AUTO_CONN_DISABLED);
+		if (!params) {
+			bt_dev_warn(hdev, "No such LE device %pMR (0x%x)",
+				    &cp->addr.bdaddr,
+				    le_addr_type(cp->addr.type));
+			goto unlock;
+		}
 	}
 
 	supported_flags = hdev->conn_flags;
@@ -7542,68 +7624,6 @@ static int get_clock_info(struct sock *sk, struct hci_dev *hdev, void *data,
 	return err;
 }
 
-static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
-{
-	struct hci_conn *conn;
-
-	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
-	if (!conn)
-		return false;
-
-	if (conn->dst_type != type)
-		return false;
-
-	if (conn->state != BT_CONNECTED)
-		return false;
-
-	return true;
-}
-
-/* This function requires the caller holds hdev->lock */
-static int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr,
-			       u8 addr_type, u8 auto_connect)
-{
-	struct hci_conn_params *params;
-
-	params = hci_conn_params_add(hdev, addr, addr_type);
-	if (!params)
-		return -EIO;
-
-	if (params->auto_connect == auto_connect)
-		return 0;
-
-	hci_pend_le_list_del_init(params);
-
-	switch (auto_connect) {
-	case HCI_AUTO_CONN_DISABLED:
-	case HCI_AUTO_CONN_LINK_LOSS:
-		/* If auto connect is being disabled when we're trying to
-		 * connect to device, keep connecting.
-		 */
-		if (params->explicit_connect)
-			hci_pend_le_list_add(params, &hdev->pend_le_conns);
-		break;
-	case HCI_AUTO_CONN_REPORT:
-		if (params->explicit_connect)
-			hci_pend_le_list_add(params, &hdev->pend_le_conns);
-		else
-			hci_pend_le_list_add(params, &hdev->pend_le_reports);
-		break;
-	case HCI_AUTO_CONN_DIRECT:
-	case HCI_AUTO_CONN_ALWAYS:
-		if (!is_connected(hdev, addr, addr_type))
-			hci_pend_le_list_add(params, &hdev->pend_le_conns);
-		break;
-	}
-
-	params->auto_connect = auto_connect;
-
-	bt_dev_dbg(hdev, "addr %pMR (type %u) auto_connect %u",
-		   addr, addr_type, auto_connect);
-
-	return 0;
-}
-
 static void device_added(struct sock *sk, struct hci_dev *hdev,
 			 bdaddr_t *bdaddr, u8 type, u8 action)
 {
@@ -7715,17 +7735,13 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
 	/* If the connection parameters don't exist for this device,
 	 * they will be created and configured with defaults.
 	 */
-	if (hci_conn_params_set(hdev, &cp->addr.bdaddr, addr_type,
-				auto_conn) < 0) {
+	params = hci_conn_params_set(hdev, &cp->addr.bdaddr, addr_type,
+				     auto_conn);
+	if (!params) {
 		err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
 					MGMT_STATUS_FAILED, &cp->addr,
 					sizeof(cp->addr));
 		goto unlock;
-	} else {
-		params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
-						addr_type);
-		if (params)
-			current_flags = params->flags;
 	}
 
 	cmd = mgmt_pending_new(sk, MGMT_OP_ADD_DEVICE, hdev, data, len);