Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2018-04-01

Here's (most likely) the last bluetooth-next pull request for the 4.17
kernel:

 - Remove unused btuart_cs driver (replaced by serial_cs + hci_uart)
 - New USB ID for Edimax EW-7611ULB controller
 - Cleanups & fixes to hci_bcm driver
 - Clenups to btmrvl driver

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

13 files changed, 473 insertions, 925 deletions

diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 149a38ee1fce..010f5f579e68 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -147,6 +147,7 @@ config BT_HCIUART_ATH3K
 config BT_HCIUART_LL
 	bool "HCILL protocol support"
 	depends on BT_HCIUART_SERDEV
+	select BT_HCIUART_H4
 	help
 	  HCILL (HCI Low Level) is a serial protocol for communication
 	  between Bluetooth device and host. This protocol is required for
@@ -242,8 +243,7 @@ config BT_HCIBCM203X
 
 config BT_HCIBPA10X
 	tristate "HCI BPA10x USB driver"
-	depends on USB && BT_HCIUART
-	select BT_HCIUART_H4
+	depends on USB
 	help
 	  Bluetooth HCI BPA10x USB driver.
 	  This driver provides support for the Digianswer BPA 100/105 Bluetooth
@@ -305,22 +305,6 @@ config BT_HCIBLUECARD
 	  Say Y here to compile support for HCI BlueCard devices into the
 	  kernel or say M to compile it as module (bluecard_cs).
 
-config BT_HCIBTUART
-	tristate "HCI UART (PC Card) device driver"
-	depends on PCMCIA
-	help
-	  Bluetooth HCI UART (PC Card) driver.
-	  This driver provides support for Bluetooth PCMCIA devices with
-	  an UART interface:
-	     Xircom CreditCard Bluetooth Adapter
-	     Xircom RealPort2 Bluetooth Adapter
-	     Sphinx PICO Card
-	     H-Soft blue+Card
-	     Cyber-blue Compact Flash Card
-
-	  Say Y here to compile support for HCI UART devices into the
-	  kernel or say M to compile it as module (btuart_cs).
-
 config BT_HCIVHCI
 	tristate "HCI VHCI (Virtual HCI device) driver"
 	help
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index 03cfc1b20c4a..ec16c55eb6e9 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_BT_HCIBFUSB)	+= bfusb.o
 obj-$(CONFIG_BT_HCIDTL1)	+= dtl1_cs.o
 obj-$(CONFIG_BT_HCIBT3C)	+= bt3c_cs.o
 obj-$(CONFIG_BT_HCIBLUECARD)	+= bluecard_cs.o
-obj-$(CONFIG_BT_HCIBTUART)	+= btuart_cs.o
 
 obj-$(CONFIG_BT_HCIBTUSB)	+= btusb.o
 obj-$(CONFIG_BT_HCIBTSDIO)	+= btsdio.o
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 801ea4ca65e4..c6f7cc57db14 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -35,7 +35,7 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
-#include "hci_uart.h"
+#include "h4_recv.h"
 
 #define VERSION "0.11"
 
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 7dbb4463b539..6f99b9f3d57f 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -689,7 +689,7 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
 	int ret, num_blocks, blksz;
 	struct sk_buff *skb = NULL;
 	u32 type;
-	u8 *payload = NULL;
+	u8 *payload;
 	struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
 	struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
 
@@ -920,7 +920,7 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
 {
 	struct sdio_func *func;
 	u8 reg;
-	int ret = 0;
+	int ret;
 
 	if (!card || !card->func) {
 		BT_ERR("Error: card or function is NULL!");
diff --git a/drivers/bluetooth/btrsi.c b/drivers/bluetooth/btrsi.c
index 5034325e417c..60d1419590ba 100644
--- a/drivers/bluetooth/btrsi.c
+++ b/drivers/bluetooth/btrsi.c
@@ -13,7 +13,6 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <net/bluetooth/bluetooth.h>
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
deleted file mode 100644
index 310e9c2e09b6..000000000000
--- a/drivers/bluetooth/btuart_cs.c
+++ /dev/null
@@ -1,675 +0,0 @@
-/*
- *
- *  Driver for Bluetooth PCMCIA cards with HCI UART interface
- *
- *  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation;
- *
- *  Software distributed under the License is distributed on an "AS
- *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- *  implied. See the License for the specific language governing
- *  rights and limitations under the License.
- *
- *  The initial developer of the original code is David A. Hinds
- *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
- *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
- *
- */
-
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/spinlock.h>
-#include <linux/moduleparam.h>
-
-#include <linux/skbuff.h>
-#include <linux/string.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <linux/bitops.h>
-#include <linux/io.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ciscode.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/cisreg.h>
-
-#include <net/bluetooth/bluetooth.h>
-#include <net/bluetooth/hci_core.h>
-
-
-
-/* ======================== Module parameters ======================== */
-
-
-MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
-MODULE_DESCRIPTION("Bluetooth driver for Bluetooth PCMCIA cards with HCI UART interface");
-MODULE_LICENSE("GPL");
-
-
-
-/* ======================== Local structures ======================== */
-
-
-struct btuart_info {
-	struct pcmcia_device *p_dev;
-
-	struct hci_dev *hdev;
-
-	spinlock_t lock;	/* For serializing operations */
-
-	struct sk_buff_head txq;
-	unsigned long tx_state;
-
-	unsigned long rx_state;
-	unsigned long rx_count;
-	struct sk_buff *rx_skb;
-};
-
-
-static int btuart_config(struct pcmcia_device *link);
-static void btuart_release(struct pcmcia_device *link);
-
-static void btuart_detach(struct pcmcia_device *p_dev);
-
-
-/* Maximum baud rate */
-#define SPEED_MAX  115200
-
-/* Default baud rate: 57600, 115200, 230400 or 460800 */
-#define DEFAULT_BAUD_RATE  115200
-
-
-/* Transmit states  */
-#define XMIT_SENDING	1
-#define XMIT_WAKEUP	2
-#define XMIT_WAITING	8
-
-/* Receiver states */
-#define RECV_WAIT_PACKET_TYPE	0
-#define RECV_WAIT_EVENT_HEADER	1
-#define RECV_WAIT_ACL_HEADER	2
-#define RECV_WAIT_SCO_HEADER	3
-#define RECV_WAIT_DATA		4
-
-
-
-/* ======================== Interrupt handling ======================== */
-
-
-static int btuart_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
-{
-	int actual = 0;
-
-	/* Tx FIFO should be empty */
-	if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
-		return 0;
-
-	/* Fill FIFO with current frame */
-	while ((fifo_size-- > 0) && (actual < len)) {
-		/* Transmit next byte */
-		outb(buf[actual], iobase + UART_TX);
-		actual++;
-	}
-
-	return actual;
-}
-
-
-static void btuart_write_wakeup(struct btuart_info *info)
-{
-	if (!info) {
-		BT_ERR("Unknown device");
-		return;
-	}
-
-	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
-		set_bit(XMIT_WAKEUP, &(info->tx_state));
-		return;
-	}
-
-	do {
-		unsigned int iobase = info->p_dev->resource[0]->start;
-		register struct sk_buff *skb;
-		int len;
-
-		clear_bit(XMIT_WAKEUP, &(info->tx_state));
-
-		if (!pcmcia_dev_present(info->p_dev))
-			return;
-
-		skb = skb_dequeue(&(info->txq));
-		if (!skb)
-			break;
-
-		/* Send frame */
-		len = btuart_write(iobase, 16, skb->data, skb->len);
-		set_bit(XMIT_WAKEUP, &(info->tx_state));
-
-		if (len == skb->len) {
-			kfree_skb(skb);
-		} else {
-			skb_pull(skb, len);
-			skb_queue_head(&(info->txq), skb);
-		}
-
-		info->hdev->stat.byte_tx += len;
-
-	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
-
-	clear_bit(XMIT_SENDING, &(info->tx_state));
-}
-
-
-static void btuart_receive(struct btuart_info *info)
-{
-	unsigned int iobase;
-	int boguscount = 0;
-
-	if (!info) {
-		BT_ERR("Unknown device");
-		return;
-	}
-
-	iobase = info->p_dev->resource[0]->start;
-
-	do {
-		info->hdev->stat.byte_rx++;
-
-		/* Allocate packet */
-		if (!info->rx_skb) {
-			info->rx_state = RECV_WAIT_PACKET_TYPE;
-			info->rx_count = 0;
-			info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
-			if (!info->rx_skb) {
-				BT_ERR("Can't allocate mem for new packet");
-				return;
-			}
-		}
-
-		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
-
-			hci_skb_pkt_type(info->rx_skb) = inb(iobase + UART_RX);
-
-			switch (hci_skb_pkt_type(info->rx_skb)) {
-
-			case HCI_EVENT_PKT:
-				info->rx_state = RECV_WAIT_EVENT_HEADER;
-				info->rx_count = HCI_EVENT_HDR_SIZE;
-				break;
-
-			case HCI_ACLDATA_PKT:
-				info->rx_state = RECV_WAIT_ACL_HEADER;
-				info->rx_count = HCI_ACL_HDR_SIZE;
-				break;
-
-			case HCI_SCODATA_PKT:
-				info->rx_state = RECV_WAIT_SCO_HEADER;
-				info->rx_count = HCI_SCO_HDR_SIZE;
-				break;
-
-			default:
-				/* Unknown packet */
-				BT_ERR("Unknown HCI packet with type 0x%02x received",
-				       hci_skb_pkt_type(info->rx_skb));
-				info->hdev->stat.err_rx++;
-
-				kfree_skb(info->rx_skb);
-				info->rx_skb = NULL;
-				break;
-
-			}
-
-		} else {
-
-			skb_put_u8(info->rx_skb, inb(iobase + UART_RX));
-			info->rx_count--;
-
-			if (info->rx_count == 0) {
-
-				int dlen;
-				struct hci_event_hdr *eh;
-				struct hci_acl_hdr *ah;
-				struct hci_sco_hdr *sh;
-
-
-				switch (info->rx_state) {
-
-				case RECV_WAIT_EVENT_HEADER:
-					eh = hci_event_hdr(info->rx_skb);
-					info->rx_state = RECV_WAIT_DATA;
-					info->rx_count = eh->plen;
-					break;
-
-				case RECV_WAIT_ACL_HEADER:
-					ah = hci_acl_hdr(info->rx_skb);
-					dlen = __le16_to_cpu(ah->dlen);
-					info->rx_state = RECV_WAIT_DATA;
-					info->rx_count = dlen;
-					break;
-
-				case RECV_WAIT_SCO_HEADER:
-					sh = hci_sco_hdr(info->rx_skb);
-					info->rx_state = RECV_WAIT_DATA;
-					info->rx_count = sh->dlen;
-					break;
-
-				case RECV_WAIT_DATA:
-					hci_recv_frame(info->hdev, info->rx_skb);
-					info->rx_skb = NULL;
-					break;
-
-				}
-
-			}
-
-		}
-
-		/* Make sure we don't stay here too long */
-		if (boguscount++ > 16)
-			break;
-
-	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
-}
-
-
-static irqreturn_t btuart_interrupt(int irq, void *dev_inst)
-{
-	struct btuart_info *info = dev_inst;
-	unsigned int iobase;
-	int boguscount = 0;
-	int iir, lsr;
-	irqreturn_t r = IRQ_NONE;
-
-	if (!info || !info->hdev)
-		/* our irq handler is shared */
-		return IRQ_NONE;
-
-	iobase = info->p_dev->resource[0]->start;
-
-	spin_lock(&(info->lock));
-
-	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
-	while (iir) {
-		r = IRQ_HANDLED;
-
-		/* Clear interrupt */
-		lsr = inb(iobase + UART_LSR);
-
-		switch (iir) {
-		case UART_IIR_RLSI:
-			BT_ERR("RLSI");
-			break;
-		case UART_IIR_RDI:
-			/* Receive interrupt */
-			btuart_receive(info);
-			break;
-		case UART_IIR_THRI:
-			if (lsr & UART_LSR_THRE) {
-				/* Transmitter ready for data */
-				btuart_write_wakeup(info);
-			}
-			break;
-		default:
-			BT_ERR("Unhandled IIR=%#x", iir);
-			break;
-		}
-
-		/* Make sure we don't stay here too long */
-		if (boguscount++ > 100)
-			break;
-
-		iir = inb(iobase + UART_IIR) & UART_IIR_ID;
-
-	}
-
-	spin_unlock(&(info->lock));
-
-	return r;
-}
-
-
-static void btuart_change_speed(struct btuart_info *info,
-				unsigned int speed)
-{
-	unsigned long flags;
-	unsigned int iobase;
-	int fcr;		/* FIFO control reg */
-	int lcr;		/* Line control reg */
-	int divisor;
-
-	if (!info) {
-		BT_ERR("Unknown device");
-		return;
-	}
-
-	iobase = info->p_dev->resource[0]->start;
-
-	spin_lock_irqsave(&(info->lock), flags);
-
-	/* Turn off interrupts */
-	outb(0, iobase + UART_IER);
-
-	divisor = SPEED_MAX / speed;
-
-	fcr = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT;
-
-	/* 
-	 * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and
-	 * almost 1,7 ms at 19200 bps. At speeds above that we can just forget
-	 * about this timeout since it will always be fast enough. 
-	 */
-
-	if (speed < 38400)
-		fcr |= UART_FCR_TRIGGER_1;
-	else
-		fcr |= UART_FCR_TRIGGER_14;
-
-	/* Bluetooth cards use 8N1 */
-	lcr = UART_LCR_WLEN8;
-
-	outb(UART_LCR_DLAB | lcr, iobase + UART_LCR);	/* Set DLAB */
-	outb(divisor & 0xff, iobase + UART_DLL);	/* Set speed */
-	outb(divisor >> 8, iobase + UART_DLM);
-	outb(lcr, iobase + UART_LCR);	/* Set 8N1  */
-	outb(fcr, iobase + UART_FCR);	/* Enable FIFO's */
-
-	/* Turn on interrupts */
-	outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
-
-	spin_unlock_irqrestore(&(info->lock), flags);
-}
-
-
-
-/* ======================== HCI interface ======================== */
-
-
-static int btuart_hci_flush(struct hci_dev *hdev)
-{
-	struct btuart_info *info = hci_get_drvdata(hdev);
-
-	/* Drop TX queue */
-	skb_queue_purge(&(info->txq));
-
-	return 0;
-}
-
-
-static int btuart_hci_open(struct hci_dev *hdev)
-{
-	return 0;
-}
-
-
-static int btuart_hci_close(struct hci_dev *hdev)
-{
-	btuart_hci_flush(hdev);
-
-	return 0;
-}
-
-
-static int btuart_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	struct btuart_info *info = hci_get_drvdata(hdev);
-
-	switch (hci_skb_pkt_type(skb)) {
-	case HCI_COMMAND_PKT:
-		hdev->stat.cmd_tx++;
-		break;
-	case HCI_ACLDATA_PKT:
-		hdev->stat.acl_tx++;
-		break;
-	case HCI_SCODATA_PKT:
-		hdev->stat.sco_tx++;
-		break;
-	}
-
-	/* Prepend skb with frame type */
-	memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
-	skb_queue_tail(&(info->txq), skb);
-
-	btuart_write_wakeup(info);
-
-	return 0;
-}
-
-
-
-/* ======================== Card services HCI interaction ======================== */
-
-
-static int btuart_open(struct btuart_info *info)
-{
-	unsigned long flags;
-	unsigned int iobase = info->p_dev->resource[0]->start;
-	struct hci_dev *hdev;
-
-	spin_lock_init(&(info->lock));
-
-	skb_queue_head_init(&(info->txq));
-
-	info->rx_state = RECV_WAIT_PACKET_TYPE;
-	info->rx_count = 0;
-	info->rx_skb = NULL;
-
-	/* Initialize HCI device */
-	hdev = hci_alloc_dev();
-	if (!hdev) {
-		BT_ERR("Can't allocate HCI device");
-		return -ENOMEM;
-	}
-
-	info->hdev = hdev;
-
-	hdev->bus = HCI_PCCARD;
-	hci_set_drvdata(hdev, info);
-	SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
-
-	hdev->open  = btuart_hci_open;
-	hdev->close = btuart_hci_close;
-	hdev->flush = btuart_hci_flush;
-	hdev->send  = btuart_hci_send_frame;
-
-	spin_lock_irqsave(&(info->lock), flags);
-
-	/* Reset UART */
-	outb(0, iobase + UART_MCR);
-
-	/* Turn off interrupts */
-	outb(0, iobase + UART_IER);
-
-	/* Initialize UART */
-	outb(UART_LCR_WLEN8, iobase + UART_LCR);	/* Reset DLAB */
-	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
-
-	/* Turn on interrupts */
-	// outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
-
-	spin_unlock_irqrestore(&(info->lock), flags);
-
-	btuart_change_speed(info, DEFAULT_BAUD_RATE);
-
-	/* Timeout before it is safe to send the first HCI packet */
-	msleep(1000);
-
-	/* Register HCI device */
-	if (hci_register_dev(hdev) < 0) {
-		BT_ERR("Can't register HCI device");
-		info->hdev = NULL;
-		hci_free_dev(hdev);
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-
-static int btuart_close(struct btuart_info *info)
-{
-	unsigned long flags;
-	unsigned int iobase = info->p_dev->resource[0]->start;
-	struct hci_dev *hdev = info->hdev;
-
-	if (!hdev)
-		return -ENODEV;
-
-	btuart_hci_close(hdev);
-
-	spin_lock_irqsave(&(info->lock), flags);
-
-	/* Reset UART */
-	outb(0, iobase + UART_MCR);
-
-	/* Turn off interrupts */
-	outb(0, iobase + UART_IER);
-
-	spin_unlock_irqrestore(&(info->lock), flags);
-
-	hci_unregister_dev(hdev);
-	hci_free_dev(hdev);
-
-	return 0;
-}
-
-static int btuart_probe(struct pcmcia_device *link)
-{
-	struct btuart_info *info;
-
-	/* Create new info device */
-	info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
-	if (!info)
-		return -ENOMEM;
-
-	info->p_dev = link;
-	link->priv = info;
-
-	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
-		CONF_AUTO_SET_IO;
-
-	return btuart_config(link);
-}
-
-
-static void btuart_detach(struct pcmcia_device *link)
-{
-	btuart_release(link);
-}
-
-static int btuart_check_config(struct pcmcia_device *p_dev, void *priv_data)
-{
-	int *try = priv_data;
-
-	if (!try)
-		p_dev->io_lines = 16;
-
-	if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0))
-		return -EINVAL;
-
-	p_dev->resource[0]->end = 8;
-	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
-	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
-
-	return pcmcia_request_io(p_dev);
-}
-
-static int btuart_check_config_notpicky(struct pcmcia_device *p_dev,
-					void *priv_data)
-{
-	static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
-	int j;
-
-	if (p_dev->io_lines > 3)
-		return -ENODEV;
-
-	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
-	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
-	p_dev->resource[0]->end = 8;
-
-	for (j = 0; j < 5; j++) {
-		p_dev->resource[0]->start = base[j];
-		p_dev->io_lines = base[j] ? 16 : 3;
-		if (!pcmcia_request_io(p_dev))
-			return 0;
-	}
-	return -ENODEV;
-}
-
-static int btuart_config(struct pcmcia_device *link)
-{
-	struct btuart_info *info = link->priv;
-	int i;
-	int try;
-
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases
-	 */
-	for (try = 0; try < 2; try++)
-		if (!pcmcia_loop_config(link, btuart_check_config, &try))
-			goto found_port;
-
-	/* Second pass: try to find an entry that isn't picky about
-	 * its base address, then try to grab any standard serial port
-	 * address, and finally try to get any free port.
-	 */
-	if (!pcmcia_loop_config(link, btuart_check_config_notpicky, NULL))
-		goto found_port;
-
-	BT_ERR("No usable port range found");
-	goto failed;
-
-found_port:
-	i = pcmcia_request_irq(link, btuart_interrupt);
-	if (i != 0)
-		goto failed;
-
-	i = pcmcia_enable_device(link);
-	if (i != 0)
-		goto failed;
-
-	if (btuart_open(info) != 0)
-		goto failed;
-
-	return 0;
-
-failed:
-	btuart_release(link);
-	return -ENODEV;
-}
-
-
-static void btuart_release(struct pcmcia_device *link)
-{
-	struct btuart_info *info = link->priv;
-
-	btuart_close(info);
-
-	pcmcia_disable_device(link);
-}
-
-static const struct pcmcia_device_id btuart_ids[] = {
-	/* don't use this driver. Use serial_cs + hci_uart instead */
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, btuart_ids);
-
-static struct pcmcia_driver btuart_driver = {
-	.owner		= THIS_MODULE,
-	.name		= "btuart_cs",
-	.probe		= btuart_probe,
-	.remove		= btuart_detach,
-	.id_table	= btuart_ids,
-};
-module_pcmcia_driver(btuart_driver);
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 5cd868ea28ed..c8c8b0b8d333 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -368,6 +368,9 @@ static const struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 
+	/* Additional Realtek 8723BU Bluetooth devices */
+	{ USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
+
 	/* Additional Realtek 8821AE Bluetooth devices */
 	{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
@@ -3060,6 +3063,7 @@ static int btusb_probe(struct usb_interface *intf,
 	if (id->driver_info & BTUSB_QCA_ROME) {
 		data->setup_on_usb = btusb_setup_qca;
 		hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
+		set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 	}
 
 #ifdef CONFIG_BT_HCIBTUSB_RTL
diff --git a/drivers/bluetooth/h4_recv.h b/drivers/bluetooth/h4_recv.h
new file mode 100644
index 000000000000..b432651f8236
--- /dev/null
+++ b/drivers/bluetooth/h4_recv.h
@@ -0,0 +1,160 @@
+/*
+ *
+ *  Generic Bluetooth HCI UART driver
+ *
+ *  Copyright (C) 2015-2018  Intel Corporation
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <asm/unaligned.h>
+
+struct h4_recv_pkt {
+	u8  type;	/* Packet type */
+	u8  hlen;	/* Header length */
+	u8  loff;	/* Data length offset in header */
+	u8  lsize;	/* Data length field size */
+	u16 maxlen;	/* Max overall packet length */
+	int (*recv)(struct hci_dev *hdev, struct sk_buff *skb);
+};
+
+#define H4_RECV_ACL \
+	.type = HCI_ACLDATA_PKT, \
+	.hlen = HCI_ACL_HDR_SIZE, \
+	.loff = 2, \
+	.lsize = 2, \
+	.maxlen = HCI_MAX_FRAME_SIZE \
+
+#define H4_RECV_SCO \
+	.type = HCI_SCODATA_PKT, \
+	.hlen = HCI_SCO_HDR_SIZE, \
+	.loff = 2, \
+	.lsize = 1, \
+	.maxlen = HCI_MAX_SCO_SIZE
+
+#define H4_RECV_EVENT \
+	.type = HCI_EVENT_PKT, \
+	.hlen = HCI_EVENT_HDR_SIZE, \
+	.loff = 1, \
+	.lsize = 1, \
+	.maxlen = HCI_MAX_EVENT_SIZE
+
+static inline struct sk_buff *h4_recv_buf(struct hci_dev *hdev,
+					  struct sk_buff *skb,
+					  const unsigned char *buffer,
+					  int count,
+					  const struct h4_recv_pkt *pkts,
+					  int pkts_count)
+{
+	while (count) {
+		int i, len;
+
+		if (!count)
+			break;
+
+		if (!skb) {
+			for (i = 0; i < pkts_count; i++) {
+				if (buffer[0] != (&pkts[i])->type)
+					continue;
+
+				skb = bt_skb_alloc((&pkts[i])->maxlen,
+						   GFP_ATOMIC);
+				if (!skb)
+					return ERR_PTR(-ENOMEM);
+
+				hci_skb_pkt_type(skb) = (&pkts[i])->type;
+				hci_skb_expect(skb) = (&pkts[i])->hlen;
+				break;
+			}
+
+			/* Check for invalid packet type */
+			if (!skb)
+				return ERR_PTR(-EILSEQ);
+
+			count -= 1;
+			buffer += 1;
+		}
+
+		len = min_t(uint, hci_skb_expect(skb) - skb->len, count);
+		skb_put_data(skb, buffer, len);
+
+		count -= len;
+		buffer += len;
+
+		/* Check for partial packet */
+		if (skb->len < hci_skb_expect(skb))
+			continue;
+
+		for (i = 0; i < pkts_count; i++) {
+			if (hci_skb_pkt_type(skb) == (&pkts[i])->type)
+				break;
+		}
+
+		if (i >= pkts_count) {
+			kfree_skb(skb);
+			return ERR_PTR(-EILSEQ);
+		}
+
+		if (skb->len == (&pkts[i])->hlen) {
+			u16 dlen;
+
+			switch ((&pkts[i])->lsize) {
+			case 0:
+				/* No variable data length */
+				dlen = 0;
+				break;
+			case 1:
+				/* Single octet variable length */
+				dlen = skb->data[(&pkts[i])->loff];
+				hci_skb_expect(skb) += dlen;
+
+				if (skb_tailroom(skb) < dlen) {
+					kfree_skb(skb);
+					return ERR_PTR(-EMSGSIZE);
+				}
+				break;
+			case 2:
+				/* Double octet variable length */
+				dlen = get_unaligned_le16(skb->data +
+							  (&pkts[i])->loff);
+				hci_skb_expect(skb) += dlen;
+
+				if (skb_tailroom(skb) < dlen) {
+					kfree_skb(skb);
+					return ERR_PTR(-EMSGSIZE);
+				}
+				break;
+			default:
+				/* Unsupported variable length */
+				kfree_skb(skb);
+				return ERR_PTR(-EILSEQ);
+			}
+
+			if (!dlen) {
+				/* No more data, complete frame */
+				(&pkts[i])->recv(hdev, skb);
+				skb = NULL;
+			}
+		} else {
+			/* Complete frame */
+			(&pkts[i])->recv(hdev, skb);
+			skb = NULL;
+		}
+	}
+
+	return skb;
+}
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 40b9fb247010..441f5e1deb11 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -98,6 +98,8 @@ struct bcm_device {
 	int			(*set_shutdown)(struct bcm_device *, bool);
 #ifdef CONFIG_ACPI
 	acpi_handle		btlp, btpu, btpd;
+	int			gpio_count;
+	int			gpio_int_idx;
 #endif
 
 	struct clk		*clk;
@@ -126,6 +128,10 @@ struct bcm_data {
 static DEFINE_MUTEX(bcm_device_lock);
 static LIST_HEAD(bcm_device_list);
 
+static int irq_polarity = -1;
+module_param(irq_polarity, int, 0444);
+MODULE_PARM_DESC(irq_polarity, "IRQ polarity 0: active-high 1: active-low");
+
 static inline void host_set_baudrate(struct hci_uart *hu, unsigned int speed)
 {
 	if (hu->serdev)
@@ -770,47 +776,27 @@ unlock:
 }
 #endif
 
-static const struct acpi_gpio_params int_last_device_wakeup_gpios = { 0, 0, false };
-static const struct acpi_gpio_params int_last_shutdown_gpios = { 1, 0, false };
-static const struct acpi_gpio_params int_last_host_wakeup_gpios = { 2, 0, false };
+static const struct acpi_gpio_params first_gpio = { 0, 0, false };
+static const struct acpi_gpio_params second_gpio = { 1, 0, false };
+static const struct acpi_gpio_params third_gpio = { 2, 0, false };
 
 static const struct acpi_gpio_mapping acpi_bcm_int_last_gpios[] = {
-	{ "device-wakeup-gpios", &int_last_device_wakeup_gpios, 1 },
-	{ "shutdown-gpios", &int_last_shutdown_gpios, 1 },
-	{ "host-wakeup-gpios", &int_last_host_wakeup_gpios, 1 },
+	{ "device-wakeup-gpios", &first_gpio, 1 },
+	{ "shutdown-gpios", &second_gpio, 1 },
+	{ "host-wakeup-gpios", &third_gpio, 1 },
 	{ },
 };
 
-static const struct acpi_gpio_params int_first_host_wakeup_gpios = { 0, 0, false };
-static const struct acpi_gpio_params int_first_device_wakeup_gpios = { 1, 0, false };
-static const struct acpi_gpio_params int_first_shutdown_gpios = { 2, 0, false };
-
 static const struct acpi_gpio_mapping acpi_bcm_int_first_gpios[] = {
-	{ "device-wakeup-gpios", &int_first_device_wakeup_gpios, 1 },
-	{ "shutdown-gpios", &int_first_shutdown_gpios, 1 },
-	{ "host-wakeup-gpios", &int_first_host_wakeup_gpios, 1 },
+	{ "host-wakeup-gpios", &first_gpio, 1 },
+	{ "device-wakeup-gpios", &second_gpio, 1 },
+	{ "shutdown-gpios", &third_gpio, 1 },
 	{ },
 };
 
 #ifdef CONFIG_ACPI
 /* IRQ polarity of some chipsets are not defined correctly in ACPI table. */
 static const struct dmi_system_id bcm_active_low_irq_dmi_table[] = {
-	{
-		.ident = "Asus T100TA",
-		.matches = {
-			DMI_EXACT_MATCH(DMI_SYS_VENDOR,
-					"ASUSTeK COMPUTER INC."),
-			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
-		},
-	},
-	{
-		.ident = "Asus T100CHI",
-		.matches = {
-			DMI_EXACT_MATCH(DMI_SYS_VENDOR,
-					"ASUSTeK COMPUTER INC."),
-			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100CHI"),
-		},
-	},
 	{	/* Handle ThinkPad 8 tablets with BCM2E55 chipset ACPI ID */
 		.ident = "Lenovo ThinkPad 8",
 		.matches = {
@@ -818,13 +804,6 @@ static const struct dmi_system_id bcm_active_low_irq_dmi_table[] = {
 			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "ThinkPad 8"),
 		},
 	},
-	{
-		.ident = "MINIX Z83-4",
-		.matches = {
-			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MINIX"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
-		},
-	},
 	{ }
 };