Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

6 files changed, 809 insertions, 429 deletions

diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index bf05831fdf0..36c359043f5 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -2,7 +2,7 @@
 # Makefile for nfc devices
 #
 
-obj-$(CONFIG_PN544_HCI_NFC)	+= pn544_hci.o
+obj-$(CONFIG_PN544_HCI_NFC)	+= pn544/
 obj-$(CONFIG_NFC_PN533)		+= pn533.o
 obj-$(CONFIG_NFC_WILINK)	+= nfcwilink.o
 
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 30ae18a03a9..ada681b01a1 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -84,6 +84,10 @@ MODULE_DEVICE_TABLE(usb, pn533_table);
 #define PN533_LISTEN_TIME 2
 
 /* frame definitions */
+#define PN533_NORMAL_FRAME_MAX_LEN 262  /* 6   (PREAMBLE, SOF, LEN, LCS, TFI)
+					   254 (DATA)
+					   2   (DCS, postamble) */
+
 #define PN533_FRAME_TAIL_SIZE 2
 #define PN533_FRAME_SIZE(f) (sizeof(struct pn533_frame) + f->datalen + \
 				PN533_FRAME_TAIL_SIZE)
@@ -1166,8 +1170,7 @@ static void pn533_poll_create_mod_list(struct pn533 *dev,
 		pn533_poll_add_mod(dev, PN533_LISTEN_MOD);
 }
 
-static int pn533_start_poll_complete(struct pn533 *dev, void *arg,
-				     u8 *params, int params_len)
+static int pn533_start_poll_complete(struct pn533 *dev, u8 *params, int params_len)
 {
 	struct pn533_poll_response *resp;
 	int rc;
@@ -1305,8 +1308,7 @@ static void pn533_wq_tg_get_data(struct work_struct *work)
 }
 
 #define ATR_REQ_GB_OFFSET 17
-static int pn533_init_target_complete(struct pn533 *dev, void *arg,
-				      u8 *params, int params_len)
+static int pn533_init_target_complete(struct pn533 *dev, u8 *params, int params_len)
 {
 	struct pn533_cmd_init_target_response *resp;
 	u8 frame, comm_mode = NFC_COMM_PASSIVE, *gb;
@@ -1403,9 +1405,9 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
 	if (cur_mod->len == 0) {
 		del_timer(&dev->listen_timer);
 
-		return pn533_init_target_complete(dev, arg, params, params_len);
+		return pn533_init_target_complete(dev, params, params_len);
 	} else {
-		rc = pn533_start_poll_complete(dev, arg, params, params_len);
+		rc = pn533_start_poll_complete(dev, params, params_len);
 		if (!rc)
 			return rc;
 	}
@@ -2376,9 +2378,9 @@ static int pn533_probe(struct usb_interface *interface,
 		goto error;
 	}
 
-	dev->in_frame = kmalloc(dev->in_maxlen, GFP_KERNEL);
+	dev->in_frame = kmalloc(PN533_NORMAL_FRAME_MAX_LEN, GFP_KERNEL);
 	dev->in_urb = usb_alloc_urb(0, GFP_KERNEL);
-	dev->out_frame = kmalloc(dev->out_maxlen, GFP_KERNEL);
+	dev->out_frame = kmalloc(PN533_NORMAL_FRAME_MAX_LEN, GFP_KERNEL);
 	dev->out_urb = usb_alloc_urb(0, GFP_KERNEL);
 
 	if (!dev->in_frame || !dev->out_frame ||
diff --git a/drivers/nfc/pn544/Makefile b/drivers/nfc/pn544/Makefile
new file mode 100644
index 00000000000..725733881eb
--- /dev/null
+++ b/drivers/nfc/pn544/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for PN544 HCI based NFC driver
+#
+
+obj-$(CONFIG_PN544_HCI_NFC)	+= pn544_i2c.o
+
+pn544_i2c-y		:= pn544.o i2c.o
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
new file mode 100644
index 00000000000..7da9071b68b
--- /dev/null
+++ b/drivers/nfc/pn544/i2c.c
@@ -0,0 +1,500 @@
+/*
+ * I2C Link Layer for PN544 HCI based Driver
+ *
+ * Copyright (C) 2012  Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * 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 <linux/crc-ccitt.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/miscdevice.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+
+#include <linux/platform_data/pn544.h>
+
+#include <net/nfc/hci.h>
+#include <net/nfc/llc.h>
+
+#include "pn544.h"
+
+#define PN544_I2C_FRAME_HEADROOM 1
+#define PN544_I2C_FRAME_TAILROOM 2
+
+/* framing in HCI mode */
+#define PN544_HCI_I2C_LLC_LEN		1
+#define PN544_HCI_I2C_LLC_CRC		2
+#define PN544_HCI_I2C_LLC_LEN_CRC	(PN544_HCI_I2C_LLC_LEN + \
+					 PN544_HCI_I2C_LLC_CRC)
+#define PN544_HCI_I2C_LLC_MIN_SIZE	(1 + PN544_HCI_I2C_LLC_LEN_CRC)
+#define PN544_HCI_I2C_LLC_MAX_PAYLOAD	29
+#define PN544_HCI_I2C_LLC_MAX_SIZE	(PN544_HCI_I2C_LLC_LEN_CRC + 1 + \
+					 PN544_HCI_I2C_LLC_MAX_PAYLOAD)
+
+static struct i2c_device_id pn544_hci_i2c_id_table[] = {
+	{"pn544", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, pn544_hci_i2c_id_table);
+
+#define PN544_HCI_I2C_DRIVER_NAME "pn544_hci_i2c"
+
+struct pn544_i2c_phy {
+	struct i2c_client *i2c_dev;
+	struct nfc_hci_dev *hdev;
+
+	unsigned int gpio_en;
+	unsigned int gpio_irq;
+	unsigned int gpio_fw;
+	unsigned int en_polarity;
+
+	int powered;
+
+	int hard_fault;		/*
+				 * < 0 if hardware error occured (e.g. i2c err)
+				 * and prevents normal operation.
+				 */
+};
+
+#define I2C_DUMP_SKB(info, skb)					\
+do {								\
+	pr_debug("%s:\n", info);				\
+	print_hex_dump(KERN_DEBUG, "i2c: ", DUMP_PREFIX_OFFSET,	\
+		       16, 1, (skb)->data, (skb)->len, 0);	\
+} while (0)
+
+static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
+{
+	int polarity, retry, ret;
+	char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
+	int count = sizeof(rset_cmd);
+
+	pr_info(DRIVER_DESC ": %s\n", __func__);
+	dev_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");
+
+	/* Disable fw download */
+	gpio_set_value(phy->gpio_fw, 0);
+
+	for (polarity = 0; polarity < 2; polarity++) {
+		phy->en_polarity = polarity;
+		retry = 3;
+		while (retry--) {
+			/* power off */
+			gpio_set_value(phy->gpio_en, !phy->en_polarity);
+			usleep_range(10000, 15000);
+
+			/* power on */
+			gpio_set_value(phy->gpio_en, phy->en_polarity);
+			usleep_range(10000, 15000);
+
+			/* send reset */
+			dev_dbg(&phy->i2c_dev->dev, "Sending reset cmd\n");
+			ret = i2c_master_send(phy->i2c_dev, rset_cmd, count);
+			if (ret == count) {
+				dev_info(&phy->i2c_dev->dev,
+					 "nfc_en polarity : active %s\n",
+					 (polarity == 0 ? "low" : "high"));
+				goto out;
+			}
+		}
+	}
+
+	dev_err(&phy->i2c_dev->dev,
+		"Could not detect nfc_en polarity, fallback to active high\n");
+
+out:
+	gpio_set_value(phy->gpio_en, !phy->en_polarity);
+}
+
+static int pn544_hci_i2c_enable(void *phy_id)
+{
+	struct pn544_i2c_phy *phy = phy_id;
+
+	pr_info(DRIVER_DESC ": %s\n", __func__);
+
+	gpio_set_value(phy->gpio_fw, 0);
+	gpio_set_value(phy->gpio_en, phy->en_polarity);
+	usleep_range(10000, 15000);
+
+	phy->powered = 1;
+
+	return 0;
+}
+
+static void pn544_hci_i2c_disable(void *phy_id)
+{
+	struct pn544_i2c_phy *phy = phy_id;
+
+	pr_info(DRIVER_DESC ": %s\n", __func__);
+
+	gpio_set_value(phy->gpio_fw, 0);
+	gpio_set_value(phy->gpio_en, !phy->en_polarity);
+	usleep_range(10000, 15000);
+
+	gpio_set_value(phy->gpio_en, phy->en_polarity);
+	usleep_range(10000, 15000);
+
+	gpio_set_value(phy->gpio_en, !phy->en_polarity);
+	usleep_range(10000, 15000);
+
+	phy->powered = 0;
+}
+
+static void pn544_hci_i2c_add_len_crc(struct sk_buff *skb)
+{
+	u16 crc;
+	int len;
+
+	len = skb->len + 2;
+	*skb_push(skb, 1) = len;
+
+	crc = crc_ccitt(0xffff, skb->data, skb->len);
+	crc = ~crc;
+	*skb_put(skb, 1) = crc & 0xff;
+	*skb_put(skb, 1) = crc >> 8;
+}
+
+static void pn544_hci_i2c_remove_len_crc(struct sk_buff *skb)
+{
+	skb_pull(skb, PN544_I2C_FRAME_HEADROOM);
+	skb_trim(skb, PN544_I2C_FRAME_TAILROOM);
+}
+
+/*
+ * Writing a frame must not return the number of written bytes.
+ * It must return either zero for success, or <0 for error.
+ * In addition, it must not alter the skb
+ */
+static int pn544_hci_i2c_write(void *phy_id, struct sk_buff *skb)
+{
+	int r;
+	struct pn544_i2c_phy *phy = phy_id;
+	struct i2c_client *client = phy->i2c_dev;
+
+	if (phy->hard_fault != 0)
+		return phy->hard_fault;
+
+	usleep_range(3000, 6000);
+
+	pn544_hci_i2c_add_len_crc(skb);
+
+	I2C_DUMP_SKB("i2c frame written", skb);
+
+	r = i2c_master_send(client, skb->data, skb->len);
+
+	if (r == -EREMOTEIO) {	/* Retry, chip was in standby */
+		usleep_range(6000, 10000);
+		r = i2c_master_send(client, skb->data, skb->len);
+	}
+
+	if (r >= 0) {
+		if (r != skb->len)
+			r = -EREMOTEIO;
+		else
+			r = 0;
+	}
+
+	pn544_hci_i2c_remove_len_crc(skb);
+
+	return r;
+}
+
+static int check_crc(u8 *buf, int buflen)
+{
+	int len;
+	u16 crc;
+
+	len = buf[0] + 1;
+	crc = crc_ccitt(0xffff, buf, len - 2);
+	crc = ~crc;
+
+	if (buf[len - 2] != (crc & 0xff) || buf[len - 1] != (crc >> 8)) {
+		pr_err(PN544_HCI_I2C_DRIVER_NAME
+		       ": CRC error 0x%x != 0x%x 0x%x\n",
+		       crc, buf[len - 1], buf[len - 2]);
+
+		pr_info(DRIVER_DESC ": %s : BAD CRC\n", __func__);
+		print_hex_dump(KERN_DEBUG, "crc: ", DUMP_PREFIX_NONE,
+			       16, 2, buf, buflen, false);
+		return -EPERM;
+	}
+	return 0;
+}
+
+/*
+ * Reads an shdlc frame and returns it in a newly allocated sk_buff. Guarantees
+ * that i2c bus will be flushed and that next read will start on a new frame.
+ * returned skb contains only LLC header and payload.
+ * returns:
+ * -EREMOTEIO : i2c read error (fatal)
+ * -EBADMSG : frame was incorrect and discarded
+ * -ENOMEM : cannot allocate skb, frame dropped
+ */
+static int pn544_hci_i2c_read(struct pn544_i2c_phy *phy, struct sk_buff **skb)
+{
+	int r;
+	u8 len;
+	u8 tmp[PN544_HCI_I2C_LLC_MAX_SIZE - 1];
+	struct i2c_client *client = phy->i2c_dev;
+
+	r = i2c_master_recv(client, &len, 1);
+	if (r != 1) {
+		dev_err(&client->dev, "cannot read len byte\n");
+		return -EREMOTEIO;
+	}
+
+	if ((len < (PN544_HCI_I2C_LLC_MIN_SIZE - 1)) ||
+	    (len > (PN544_HCI_I2C_LLC_MAX_SIZE - 1))) {
+		dev_err(&client->dev, "invalid len byte\n");
+		r = -EBADMSG;
+		goto flush;
+	}
+
+	*skb = alloc_skb(1 + len, GFP_KERNEL);
+	if (*skb == NULL) {
+		r = -ENOMEM;
+		goto flush;
+	}
+
+	*skb_put(*skb, 1) = len;
+
+	r = i2c_master_recv(client, skb_put(*skb, len), len);
+	if (r != len) {
+		kfree_skb(*skb);
+		return -EREMOTEIO;
+	}
+
+	I2C_DUMP_SKB("i2c frame read", *skb);
+
+	r = check_crc((*skb)->data, (*skb)->len);
+	if (r != 0) {
+		kfree_skb(*skb);
+		r = -EBADMSG;
+		goto flush;
+	}
+
+	skb_pull(*skb, 1);
+	skb_trim(*skb, (*skb)->len - 2);
+
+	usleep_range(3000, 6000);
+
+	return 0;
+
+flush:
+	if (i2c_master_recv(client, tmp, sizeof(tmp)) < 0)
+		r = -EREMOTEIO;
+
+	usleep_range(3000, 6000);
+
+	return r;
+}
+
+/*
+ * Reads an shdlc frame from the chip. This is not as straightforward as it
+ * seems. There are cases where we could loose the frame start synchronization.
+ * The frame format is len-data-crc, and corruption can occur anywhere while
+ * transiting on i2c bus, such that we could read an invalid len.
+ * In order to recover synchronization with the next frame, we must be sure
+ * to read the real amount of data without using the len byte. We do this by
+ * assuming the following:
+ * - the chip will always present only one single complete frame on the bus
+ *   before triggering the interrupt
+ * - the chip will not present a new frame until we have completely read
+ *   the previous one (or until we have handled the interrupt).
+ * The tricky case is when we read a corrupted len that is less than the real
+ * len. We must detect this here in order to determine that we need to flush
+ * the bus. This is the reason why we check the crc here.
+ */
+static irqreturn_t pn544_hci_i2c_irq_thread_fn(int irq, void *phy_id)
+{
+	struct pn544_i2c_phy *phy = phy_id;
+	struct i2c_client *client;
+	struct sk_buff *skb = NULL;
+	int r;
+
+	if (!phy || irq != phy->i2c_dev->irq) {
+		WARN_ON_ONCE(1);
+		return IRQ_NONE;
+	}
+
+	client = phy->i2c_dev;
+	dev_dbg(&client->dev, "IRQ\n");
+
+	if (phy->hard_fault != 0)
+		return IRQ_HANDLED;
+
+	r = pn544_hci_i2c_read(phy, &skb);
+	if (r == -EREMOTEIO) {
+		phy->hard_fault = r;
+
+		nfc_hci_recv_frame(phy->hdev, NULL);
+
+		return IRQ_HANDLED;
+	} else if ((r == -ENOMEM) || (r == -EBADMSG)) {
+		return IRQ_HANDLED;
+	}
+
+	nfc_hci_recv_frame(phy->hdev, skb);
+
+	return IRQ_HANDLED;
+}
+
+static struct nfc_phy_ops i2c_phy_ops = {
+	.write = pn544_hci_i2c_write,
+	.enable = pn544_hci_i2c_enable,
+	.disable = pn544_hci_i2c_disable,
+};
+
+static int __devinit pn544_hci_i2c_probe(struct i2c_client *client,
+				     const struct i2c_device_id *id)
+{
+	struct pn544_i2c_phy *phy;
+	struct pn544_nfc_platform_data *pdata;
+	int r = 0;
+
+	dev_dbg(&client->dev, "%s\n", __func__);
+	dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "Need I2C_FUNC_I2C\n");
+		return -ENODEV;
+	}
+
+	phy = kzalloc(sizeof(struct pn544_i2c_phy), GFP_KERNEL);
+	if (!phy) {
+		dev_err(&client->dev,
+			"Cannot allocate memory for pn544 i2c phy.\n");
+		r = -ENOMEM;
+		goto err_phy_alloc;
+	}
+
+	phy->i2c_dev = client;
+	i2c_set_clientdata(client, phy);
+
+	pdata = client->dev.platform_data;
+	if (pdata == NULL) {
+		dev_err(&client->dev, "No platform data\n");
+		r = -EINVAL;
+		goto err_pdata;
+	}
+
+	if (pdata->request_resources == NULL) {
+		dev_err(&client->dev, "request_resources() missing\n");
+		r = -EINVAL;
+		goto err_pdata;
+	}
+
+	r = pdata->request_resources(client);
+	if (r) {
+		dev_err(&client->dev, "Cannot get platform resources\n");
+		goto err_pdata;
+	}
+
+	phy->gpio_en = pdata->get_gpio(NFC_GPIO_ENABLE);
+	phy->gpio_fw = pdata->get_gpio(NFC_GPIO_FW_RESET);
+	phy->gpio_irq = pdata->get_gpio(NFC_GPIO_IRQ);
+
+	pn544_hci_i2c_platform_init(phy);
+
+	r = request_threaded_irq(client->irq, NULL, pn544_hci_i2c_irq_thread_fn,
+				 IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				 PN544_HCI_I2C_DRIVER_NAME, phy);
+	if (r < 0) {
+		dev_err(&client->dev, "Unable to register IRQ handler\n");
+		goto err_rti;
+	}
+
+	r = pn544_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,
+			    PN544_I2C_FRAME_HEADROOM, PN544_I2C_FRAME_TAILROOM,
+			    PN544_HCI_I2C_LLC_MAX_PAYLOAD, &phy->hdev);
+	if (r < 0)
+		goto err_hci;
+
+	return 0;
+
+err_hci:
+	free_irq(client->irq, phy);
+
+err_rti:
+	if (pdata->free_resources != NULL)
+		pdata->free_resources();
+
+err_pdata:
+	kfree(phy);
+
+err_phy_alloc:
+	return r;
+}
+
+static __devexit int pn544_hci_i2c_remove(struct i2c_client *client)
+{
+	struct pn544_i2c_phy *phy = i2c_get_clientdata(client);
+	struct pn544_nfc_platform_data *pdata = client->dev.platform_data;
+
+	dev_dbg(&client->dev, "%s\n", __func__);
+
+	pn544_hci_remove(phy->hdev);
+
+	if (phy->powered)
+		pn544_hci_i2c_disable(phy);
+
+	free_irq(client->irq, phy);
+	if (pdata->free_resources)
+		pdata->free_resources();
+
+	kfree(phy);
+
+	return 0;
+}
+
+static struct i2c_driver pn544_hci_i2c_driver = {
+	.driver = {
+		   .name = PN544_HCI_I2C_DRIVER_NAME,
+		  },
+	.probe = pn544_hci_i2c_probe,
+	.id_table = pn544_hci_i2c_id_table,
+	.remove = __devexit_p(pn544_hci_i2c_remove),
+};
+
+static int __init pn544_hci_i2c_init(void)
+{
+	int r;
+
+	pr_debug(DRIVER_DESC ": %s\n", __func__);
+
+	r = i2c_add_driver(&pn544_hci_i2c_driver);
+	if (r) {
+		pr_err(PN544_HCI_I2C_DRIVER_NAME
+		       ": driver registration failed\n");
+		return r;
+	}
+
+	return 0;
+}
+
+static void __exit pn544_hci_i2c_exit(void)
+{
+	i2c_del_driver(&pn544_hci_i2c_driver);
+}
+
+module_init(pn544_hci_i2c_init);
+module_exit(pn544_hci_i2c_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/pn544_hci.c b/drivers/nfc/pn544/pn544.c
index c9c8570273a..cc666de3b8e 100644
--- a/drivers/nfc/pn544_hci.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -18,47 +18,21 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-#include <linux/crc-ccitt.h>
-#include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <linux/miscdevice.h>
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/i2c.h>
 
 #include <linux/nfc.h>
 #include <net/nfc/hci.h>
 #include <net/nfc/llc.h>
 
-#include <linux/nfc/pn544.h>
-
-#define DRIVER_DESC "HCI NFC driver for PN544"
-
-#define PN544_HCI_DRIVER_NAME "pn544_hci"
+#include "pn544.h"
 
 /* Timing restrictions (ms) */
 #define PN544_HCI_RESETVEN_TIME		30
 
-static struct i2c_device_id pn544_hci_id_table[] = {
-	{"pn544", 0},
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, pn544_hci_id_table);
-
 #define HCI_MODE 0
 #define FW_MODE 1
 
-/* framing in HCI mode */
-#define PN544_HCI_LLC_LEN		1
-#define PN544_HCI_LLC_CRC		2
-#define PN544_HCI_LLC_LEN_CRC		(PN544_HCI_LLC_LEN + PN544_HCI_LLC_CRC)
-#define PN544_HCI_LLC_MIN_SIZE		(1 + PN544_HCI_LLC_LEN_CRC)
-#define PN544_HCI_LLC_MAX_PAYLOAD	29
-#define PN544_HCI_LLC_MAX_SIZE		(PN544_HCI_LLC_LEN_CRC + 1 + \
-					 PN544_HCI_LLC_MAX_PAYLOAD)
-
 enum pn544_state {
 	PN544_ST_COLD,
 	PN544_ST_FW_READY,
@@ -100,6 +74,10 @@ enum pn544_state {
 #define PN544_SYS_MGMT_INFO_NOTIFICATION	0x02
 
 #define PN544_POLLING_LOOP_MGMT_GATE		0x94
+#define PN544_DEP_MODE				0x01
+#define PN544_DEP_ATR_REQ			0x02
+#define PN544_DEP_ATR_RES			0x03
+#define PN544_DEP_MERGE				0x0D
 #define PN544_PL_RDPHASES			0x06
 #define PN544_PL_EMULATION			0x07
 #define PN544_PL_NFCT_DEACTIVATED		0x09
@@ -108,6 +86,15 @@ enum pn544_state {
 
 #define PN544_NFC_WI_MGMT_GATE			0xA1
 
+#define PN544_HCI_EVT_SND_DATA			0x01
+#define PN544_HCI_EVT_ACTIVATED			0x02
+#define PN544_HCI_EVT_DEACTIVATED		0x03
+#define PN544_HCI_EVT_RCV_DATA			0x04
+#define PN544_HCI_EVT_CONTINUE_MI		0x05
+
+#define PN544_HCI_CMD_ATTREQUEST		0x12
+#define PN544_HCI_CMD_CONTINUE_ACTIVATION	0x13
+
 static struct nfc_hci_gate pn544_gates[] = {
 	{NFC_HCI_ADMIN_GATE, NFC_HCI_INVALID_PIPE},
 	{NFC_HCI_LOOPBACK_GATE, NFC_HCI_INVALID_PIPE},
@@ -128,259 +115,22 @@ static struct nfc_hci_gate pn544_gates[] = {
 
 /* Largest headroom needed for outgoing custom commands */
 #define PN544_CMDS_HEADROOM	2
-#define PN544_FRAME_HEADROOM 1
-#define PN544_FRAME_TAILROOM 2
 
 struct pn544_hci_info {
-	struct i2c_client *i2c_dev;
+	struct nfc_phy_ops *phy_ops;
+	void *phy_id;
+
 	struct nfc_hci_dev *hdev;
 
 	enum pn544_state state;
 
 	struct mutex info_lock;
 
-	unsigned int gpio_en;
-	unsigned int gpio_irq;
-	unsigned int gpio_fw;
-	unsigned int en_polarity;
-
-	int hard_fault;		/*
-				 * < 0 if hardware error occured (e.g. i2c err)
-				 * and prevents normal operation.
-				 */
 	int async_cb_type;
 	data_exchange_cb_t async_cb;
 	void *async_cb_context;
 };
 
-static void pn544_hci_platform_init(struct pn544_hci_info *info)
-{
-	int polarity, retry, ret;
-	char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
-	int count = sizeof(rset_cmd);
-
-	pr_info(DRIVER_DESC ": %s\n", __func__);
-	dev_info(&info->i2c_dev->dev, "Detecting nfc_en polarity\n");
-
-	/* Disable fw download */
-	gpio_set_value(info->gpio_fw, 0);
-
-	for (polarity = 0; polarity < 2; polarity++) {
-		info->en_polarity = polarity;
-		retry = 3;
-		while (retry--) {
-			/* power off */
-			gpio_set_value(info->gpio_en, !info->en_polarity);
-			usleep_range(10000, 15000);
-
-			/* power on */
-			gpio_set_value(info->gpio_en, info->en_polarity);
-			usleep_range(10000, 15000);
-
-			/* send reset */
-			dev_dbg(&info->i2c_dev->dev, "Sending reset cmd\n");
-			ret = i2c_master_send(info->i2c_dev, rset_cmd, count);
-			if (ret == count) {
-				dev_info(&info->i2c_dev->dev,
-					 "nfc_en polarity : active %s\n",
-					 (polarity == 0 ? "low" : "high"));
-				goto out;
-			}
-		}
-	}
-
-	dev_err(&info->i2c_dev->dev,
-		"Could not detect nfc_en polarity, fallback to active high\n");
-
-out:
-	gpio_set_value(info->gpio_en, !info->en_polarity);
-}
-
-static int pn544_hci_enable(struct pn544_hci_info *info, int mode)
-{
-	pr_info(DRIVER_DESC ": %s\n", __func__);
-
-	gpio_set_value(info->gpio_fw, 0);
-	gpio_set_value(info->gpio_en, info->en_polarity);
-	usleep_range(10000, 15000);
-
-	return 0;
-}
-
-static void pn544_hci_disable(struct pn544_hci_info *info)
-{
-	pr_info(DRIVER_DESC ": %s\n", __func__);
-
-	gpio_set_value(info->gpio_fw, 0);
-	gpio_set_value(info->gpio_en, !info->en_polarity);
-	usleep_range(10000, 15000);
-
-	gpio_set_value(info->gpio_en, info->en_polarity);
-	usleep_range(10000, 15000);
-
-	gpio_set_value(info->gpio_en, !info->en_polarity);
-	usleep_range(10000, 15000);
-}
-
-static int pn544_hci_i2c_write(struct i2c_client *client, u8 *buf, int len)
-{
-	int r;
-
-	usleep_range(3000, 6000);
-
-	r = i2c_master_send(client, buf, len);
-
-	if (r == -EREMOTEIO) {	/* Retry, chip was in standby */
-		usleep_range(6000, 10000);
-		r = i2c_master_send(client, buf, len);
-	}
-
-	if (r >= 0) {
-		if (r != len)
-			return -EREMOTEIO;
-		else
-			return 0;
-	}
-
-	return r;
-}
-
-static int check_crc(u8 *buf, int buflen)
-{
-	int len;
-	u16 crc;
-
-	len = buf[0] + 1;
-	crc = crc_ccitt(0xffff, buf, len - 2);
-	crc = ~crc;
-
-	if (buf[len - 2] != (crc & 0xff) || buf[len - 1] != (crc >> 8)) {
-		pr_err(PN544_HCI_DRIVER_NAME ": CRC error 0x%x != 0x%x 0x%x\n",
-		       crc, buf[len - 1], buf[len - 2]);
-
-		pr_info(DRIVER_DESC ": %s : BAD CRC\n", __func__);
-		print_hex_dump(KERN_DEBUG, "crc: ", DUMP_PREFIX_NONE,
-			       16, 2, buf, buflen, false);
-		return -EPERM;
-	}
-	return 0;
-}
-
-/*
- * Reads an shdlc frame and returns it in a newly allocated sk_buff. Guarantees
- * that i2c bus will be flushed and that next read will start on a new frame.
- * returned skb contains only LLC header and payload.
- * returns:
- * -EREMOTEIO : i2c read error (fatal)
- * -EBADMSG : frame was incorrect and discarded
- * -ENOMEM : cannot allocate skb, frame dropped
- */
-static int pn544_hci_i2c_read(struct i2c_client *client, struct sk_buff **skb)
-{
-	int r;
-	u8 len;
-	u8 tmp[PN544_HCI_LLC_MAX_SIZE - 1];
-
-	r = i2c_master_recv(client, &len, 1);
-	if (r != 1) {
-		dev_err(&client->dev, "cannot read len byte\n");
-		return -EREMOTEIO;
-	}
-
-	if ((len < (PN544_HCI_LLC_MIN_SIZE - 1)) ||
-	    (len > (PN544_HCI_LLC_MAX_SIZE - 1))) {
-		dev_err(&client->dev, "invalid len byte\n");
-		r = -EBADMSG;
-		goto flush;
-	}
-
-	*skb = alloc_skb(1 + len, GFP_KERNEL);
-	if (*skb == NULL) {
-		r = -ENOMEM;
-		goto flush;
-	}
-
-	*skb_put(*skb, 1) = len;
-
-	r = i2c_master_recv(client, skb_put(*skb, len), len);
-	if (r != len) {
-		kfree_skb(*skb);
-		return -EREMOTEIO;
-	}
-
-	r = check_crc((*skb)->data, (*skb)->len);
-	if (r != 0) {
-		kfree_skb(*skb);
-		r = -EBADMSG;
-		goto flush;
-	}
-
-	skb_pull(*skb, 1);
-	skb_trim(*skb, (*skb)->len - 2);
-
-	usleep_range(3000, 6000);
-
-	return 0;
-
-flush:
-	if (i2c_master_recv(client, tmp, sizeof(tmp)) < 0)
-		r = -EREMOTEIO;
-
-	usleep_range(3000, 6000);
-
-	return r;
-}
-
-/*
- * Reads an shdlc frame from the chip. This is not as straightforward as it
- * seems. There are cases where we could loose the frame start synchronization.
- * The frame format is len-data-crc, and corruption can occur anywhere while
- * transiting on i2c bus, such that we could read an invalid len.
- * In order to recover synchronization with the next frame, we must be sure
- * to read the real amount of data without using the len byte. We do this by
- * assuming the following:
- * - the chip will always present only one single complete frame on the bus
- *   before triggering the interrupt
- * - the chip will not present a new frame until we have completely read
- *   the previous one (or until we have handled the interrupt).
- * The tricky case is when we read a corrupted len that is less than the real
- * len. We must detect this here in order to determine that we need to flush
- * the bus. This is the reason why we check the crc here.
- */
-static irqreturn_t pn544_hci_irq_thread_fn(int irq, void *dev_id)
-{
-	struct pn544_hci_info *info = dev_id;
-	struct i2c_client *client;
-	struct sk_buff *skb = NULL;
-	int r;
-
-	if (!info || irq != info->i2c_dev->irq) {
-		WARN_ON_ONCE(1);
-		return IRQ_NONE;
-	}
-
-	client = info->i2c_dev;
-	dev_dbg(&client->dev, "IRQ\n");
-
-	if (info->hard_fault != 0)
-		return IRQ_HANDLED;
-
-	r = pn544_hci_i2c_read(client, &skb);
-	if (r == -EREMOTEIO) {
-		info->hard_fault = r;
-
-		nfc_hci_recv_frame(info->hdev, NULL);
-
-		return IRQ_HANDLED;
-	} else if ((r == -ENOMEM) || (r == -EBADMSG)) {
-		return IRQ_HANDLED;
-	}
-
-	nfc_hci_recv_frame(info->hdev, skb);
-
-	return IRQ_HANDLED;
-}
-
 static int pn544_hci_open(struct nfc_hci_dev *hdev)
 {
 	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
@@ -393,7 +143,7 @@ static int pn544_hci_open(struct nfc_hci_dev *hdev)
 		goto out;
 	}
 
-	r = pn544_hci_enable(info, HCI_MODE);
+	r = info->phy_ops->enable(info->phy_id);
 
 	if (r == 0)
 		info->state = PN544_ST_READY;
@@ -412,7 +162,7 @@ static void pn544_hci_close(struct nfc_hci_dev *hdev)
 	if (info->state == PN544_ST_COLD)
 		goto out;
 
-	pn544_hci_disable(info);
+	info->phy_ops->disable(info->phy_id);
 
 	info->state = PN544_ST_COLD;
 
@@ -587,40 +337,11 @@ static int pn544_hci_ready(struct nfc_hci_dev *hdev)
 	return 0;
 }
 
-static void pn544_hci_add_len_crc(struct sk_buff *skb)
-{
-	u16 crc;
-	int len;
-
-	len = skb->len + 2;
-	*skb_push(skb, 1) = len;
-
-	crc = crc_ccitt(0xffff, skb->data, skb->len);
-	crc = ~crc;
-	*skb_put(skb, 1) = crc & 0xff;
-	*skb_put(skb, 1) = crc >> 8;
-}
-
-static void pn544_hci_remove_len_crc(struct sk_buff *skb)
-{
-	skb_pull(skb, PN544_FRAME_HEADROOM);
-	skb_trim(skb, PN544_FRAME_TAILROOM);
-}
-
 static int pn544_hci_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb)
 {
 	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
-	struct i2c_client *client = info->i2c_dev;
-	int r;
 
-	if (info->hard_fault != 0)
-		return info->hard_fault;
-
-	pn544_hci_add_len_crc(skb);
-	r = pn544_hci_i2c_write(client, skb->data, skb->len);
-	pn544_hci_remove_len_crc(skb);
-
-	return r;
+	return info->phy_ops->write(info->phy_id, skb);
 }
 
 static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
@@ -630,6 +351,9 @@ static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
 	int r;
 	u8 duration[2];
 	u8 activated;
+	u8 i_mode = 0x3f; /* Enable all supported modes */
+	u8 t_mode = 0x0f;
+	u8 t_merge = 0x01; /* Enable merge by default */
 
 	pr_info(DRIVER_DESC ": %s protocols 0x%x 0x%x\n",
 		__func__, im_protocols, tm_protocols);
@@ -667,6 +391,61 @@ static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
 	if (r < 0)
 		return r;
 
+	if ((im_protocols | tm_protocols) & NFC_PROTO_NFC_DEP_MASK) {
+		hdev->gb = nfc_get_local_general_bytes(hdev->ndev,
+							&hdev->gb_len);
+		pr_debug("generate local bytes %p", hdev->gb);
+		if (hdev->gb == NULL || hdev->gb_len == 0) {
+			im_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
+			tm_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
+		}
+	}
+
+	if (im_protocols & NFC_PROTO_NFC_DEP_MASK) {
+		r = nfc_hci_send_event(hdev,
+				PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+				NFC_HCI_EVT_END_OPERATION, NULL, 0);
+		if (r < 0)
+			return r;
+
+		r = nfc_hci_set_param(hdev,
+				PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+				PN544_DEP_MODE, &i_mode, 1);
+		if (r < 0)
+			return r;
+
+		r = nfc_hci_set_param(hdev,
+				PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+				PN544_DEP_ATR_REQ, hdev->gb, hdev->gb_len);
+		if (r < 0)
+			return r;
+
+		r = nfc_hci_send_event(hdev,
+				PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+				NFC_HCI_EVT_READER_REQUESTED, NULL, 0);
+		if (r < 0)
+			nfc_hci_send_event(hdev,
+					PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+					NFC_HCI_EVT_END_OPERATION, NULL, 0);
+	}
+
+	if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) {
+		r = nfc_hci_set_param(hdev, PN544_RF_READER_NFCIP1_TARGET_GATE,
+				PN544_DEP_MODE, &t_mode, 1);
+		if (r < 0)
+			return r;
+
+		r = nfc_hci_set_param(hdev, PN544_RF_READER_NFCIP1_TARGET_GATE,
+				PN544_DEP_ATR_RES, hdev->gb, hdev->gb_len);
+		if (r < 0)
+			return r;
+
+		r = nfc_hci_set_param(hdev, PN544_RF_READER_NFCIP1_TARGET_GATE,
+				PN544_DEP_MERGE, &t_merge, 1);
+		if (r < 0)
+			return r;
+	}
+
 	r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE,
 			       NFC_HCI_EVT_READER_REQUESTED, NULL, 0);
 	if (r < 0)
@@ -676,6 +455,43 @@ static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
 	return r;
 }
 
+static int pn544_hci_dep_link_up(struct nfc_hci_dev *hdev,
+				struct nfc_target *target, u8 comm_mode,
+				u8 *gb, size_t gb_len)
+{
+	struct sk_buff *rgb_skb = NULL;
+	int r;
+
+	r = nfc_hci_get_param(hdev, target->hci_reader_gate,
+				PN544_DEP_ATR_RES, &rgb_skb);
+	if (r < 0)
+		return r;
+
+	if (rgb_skb->len == 0 || rgb_skb->len > NFC_GB_MAXSIZE) {
+		r = -EPROTO;
+		goto exit;
+	}
+	print_hex_dump(KERN_DEBUG, "remote gb: ", DUMP_PREFIX_OFFSET,
+			16, 1, rgb_skb->data, rgb_skb->len, true);
+
+	r = nfc_set_remote_general_bytes(hdev->ndev, rgb_skb->data,
+						rgb_skb->len);
+
+	if (r == 0)
+		r = nfc_dep_link_is_up(hdev->ndev, target->idx, comm_mode,
+					NFC_RF_INITIATOR);
+exit:
+	kfree_skb(rgb_skb);
+	return r;
+}
+
+static int pn544_hci_dep_link_down(struct nfc_hci_dev *hdev)
+{
+
+	return nfc_hci_send_event(hdev, PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+					NFC_HCI_EVT_END_OPERATION, NULL, 0);
+}
+
 static int pn544_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
 				      struct nfc_target *target)
 {
@@ -687,6 +503,9 @@ static int pn544_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
 		target->supported_protocols = NFC_PROTO_JEWEL_MASK;
 		target->sens_res = 0x0c00;
 		break;
+	case PN544_RF_READER_NFCIP1_INITIATOR_GATE:
+		target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+		break;
 	default:
 		return -EPROTO;
 	}
@@ -701,7 +520,18 @@ static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
 	struct sk_buff *uid_skb;
 	int r = 0;
 
-	if (target->supported_protocols & NFC_PROTO_MIFARE_MASK) {
+	if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE)
+		return r;
+
+	if (target->supported_protocols & NFC_PROTO_NFC_DEP_MASK) {
+		r = nfc_hci_send_cmd(hdev,
+			PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+			PN544_HCI_CMD_CONTINUE_ACTIVATION, NULL, 0, NULL);
+		if (r < 0)
+			return r;
+
+		target->hci_reader_gate = PN544_RF_READER_NFCIP1_INITIATOR_GATE;
+	} else if (target->supported_protocols & NFC_PROTO_MIFARE_MASK) {
 		if (target->nfcid1_len != 4 && target->nfcid1_len != 7 &&
 		    target->nfcid1_len != 10)
 			return -EPROTO;
@@ -724,6 +554,16 @@ static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
 				     PN544_RF_READER_CMD_ACTIVATE_NEXT,
 				     uid_skb->data, uid_skb->len, NULL);
 		kfree_skb(uid_skb);
+
+		r = nfc_hci_send_cmd(hdev,
+					PN544_RF_READER_NFCIP1_INITIATOR_GATE,
+					PN544_HCI_CMD_CONTINUE_ACTIVATION,
+					NULL, 0, NULL);
+		if (r < 0)
+			return r;
+
+		target->hci_reader_gate = PN544_RF_READER_NFCIP1_INITIATOR_GATE;
+		target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
 	} else if (target->supported_protocols & NFC_PROTO_ISO14443_MASK) {
 		/*
 		 * TODO: maybe other ISO 14443 require some kind of continue
@@ -769,7 +609,7 @@ static void pn544_hci_data_exchange_cb(void *context, struct sk_buff *skb,
  * <= 0: driver handled the data exchange
  *    1: driver doesn't especially handle, please do standard processing
  */
-static int pn544_hci_data_exchange(struct nfc_hci_dev *hdev,
+static int pn544_hci_im_transceive(struct nfc_hci_dev *hdev,
 				   struct nfc_target *target,
 				   struct sk_buff *skb, data_exchange_cb_t cb,
 				   void *cb_context)
@@ -822,17 +662,110 @@ static int pn544_hci_data_exchange(struct nfc_hci_dev *hdev,
 		return nfc_hci_send_cmd_async(hdev, target->hci_reader_gate,
 					      PN544_JEWEL_RAW_CMD, skb->data,
 					      skb->len, cb, cb_context);
+	case PN544_RF_READER_NFCIP1_INITIATOR_GATE:
+		*skb_push(skb, 1) = 0;
+
+		return nfc_hci_send_event(hdev, target->hci_reader_gate,
+					PN544_HCI_EVT_SND_DATA, skb->data,
+					skb->len);
 	default:
 		return 1;
 	}
 }
 
+static int pn544_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
+{
+	/* Set default false for multiple information chaining */
+	*skb_push(skb, 1) = 0;
+
+	return nfc_hci_send_event(hdev, PN544_RF_READER_NFCIP1_TARGET_GATE,
+				PN544_HCI_EVT_SND_DATA, skb->data, skb->len);
+}
+
 static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
 				   struct nfc_target *target)
 {
-	return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
-				PN544_RF_READER_CMD_PRESENCE_CHECK,
-				NULL, 0, NULL);
+	pr_debug("supported protocol %d", target->supported_protocols);
+	if (target->supported_protocols & (NFC_PROTO_ISO14443_MASK |
+					NFC_PROTO_ISO14443_B_MASK)) {
+		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
+					PN544_RF_READER_CMD_PRESENCE_CHECK,
+					NULL, 0, NULL);
+	} else if (target->supported_protocols & NFC_PROTO_MIFARE_MASK) {
+		if (target->nfcid1_len != 4 && target->nfcid1_len != 7 &&
+		    target->nfcid1_len != 10)
+			return -EOPNOTSUPP;
+
+		 return nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE,
+				     PN544_RF_READER_CMD_ACTIVATE_NEXT,
+				     target->nfcid1, target->nfcid1_len, NULL);
+	} else if (target->supported_protocols & NFC_PROTO_JEWEL_MASK) {
+		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
+					PN544_JEWEL_RAW_CMD, NULL, 0, NULL);
+	} else if (target->supported_protocols & NFC_PROTO_FELICA_MASK) {
+		return nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
+					PN544_FELICA_RAW, NULL, 0, NULL);
+	} else if (target->supported_protocols & NFC_PROTO_NFC_DEP_MASK) {
+		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
+					PN544_HCI_CMD_ATTREQUEST,
+					NULL, 0, NULL);
+	}
+
+	return 0;
+}
+
+static void pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate,
+					u8 event, struct sk_buff *skb)
+{
+	struct sk_buff *rgb_skb = NULL;
+	int r = 0;
+
+	pr_debug("hci event %d", event);
+	switch (event) {
+	case PN544_HCI_EVT_ACTIVATED:
+		if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE)
+			nfc_hci_target_discovered(hdev, gate);
+		else if (gate == PN544_RF_READER_NFCIP1_TARGET_GATE) {
+			r = nfc_hci_get_param(hdev, gate, PN544_DEP_ATR_REQ,
+						&rgb_skb);
+
+			if (r < 0)
+				goto exit;
+
+			nfc_tm_activated(hdev->ndev, NFC_PROTO_NFC_DEP_MASK,
+					NFC_COMM_PASSIVE, rgb_skb->data,
+					rgb_skb->len);
+
+			kfree_skb(rgb_skb);
+		}
+
+		break;
+	case PN544_HCI_EVT_DEACTIVATED:
+		nfc_hci_send_event(hdev, gate,
+			NFC_HCI_EVT_END_OPERATION, NULL, 0);
+		break;
+	case PN544_HCI_EVT_RCV_DATA:
+		if (skb->len < 2) {
+			r = -EPROTO;
+			goto exit;
+		}
+
+		if (skb->data[0] != 0) {
+			pr_debug("data0 %d", skb->data[0]);
+			r = -EPROTO;
+			goto exit;
+		}
+
+		skb_pull(skb, 2);
+		nfc_tm_data_received(hdev->ndev, skb);
+
+		return;
+	default:
+		break;
+	}
+
+exit:
+	kfree_skb(skb);
 }
 
 static struct nfc_hci_ops pn544_hci_ops = {
@@ -841,74 +774,36 @@ static struct nfc_hci_ops pn544_hci_ops = {
 	.hci_ready = pn544_hci_ready,
 	.xmit = pn544_hci_xmit,
 	.start_poll = pn544_hci_start_poll,
+	.dep_link_up = pn544_hci_dep_link_up,
+	.dep_link_down = pn544_hci_dep_link_down,
 	.target_from_gate = pn544_hci_target_from_gate,
 	.complete_target_discovered = pn544_hci_complete_target_discovered,
-	.data_exchange = pn544_hci_data_exchange,
+	.im_transceive = pn544_hci_im_transceive,
+	.tm_send = pn544_hci_tm_send,
 	.check_presence = pn544_hci_check_presence,
+	.event_received = pn544_hci_event_received,
 };
 
-static int __devinit pn544_hci_probe(struct i2c_client *client,
-				     const struct i2c_device_id *id)
+int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
+		    int phy_headroom, int phy_tailroom, int phy_payload,
+		    struct nfc_hci_dev **hdev)
 {
 	struct pn544_hci_info *info;
-	struct pn544_nfc_platform_data *pdata;
-	int r = 0;
 	u32 protocols;
 	struct nfc_hci_init_data init_data;
-
-	dev_dbg(&client->dev, "%s\n", __func__);
-	dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "Need I2C_FUNC_I2C\n");
-		return -ENODEV;
-	}
+	int r;
 
 	info = kzalloc(sizeof(struct pn544_hci_info), GFP_KERNEL);
 	if (!info) {
-		dev_err(&client->dev,
-			"Cannot allocate memory for pn544_hci_info.\n");
+		pr_err("Cannot allocate memory for pn544_hci_info.\n");
 		r = -ENOMEM;
 		goto err_info_alloc;
 	}
 
-	info->i2c_dev = client;
+	info->phy_ops = phy_ops;
+	info->phy_id = phy_id;
 	info->state = PN544_ST_COLD;
 	mutex_init(&info->info_lock);
-	i2c_set_clientdata(client, info);
-
-	pdata = client->dev.platform_data;
-	if (pdata == NULL) {
-		dev_err(&client->dev, "No platform data\n");
-		r = -EINVAL;
-		goto err_pdata;
-	}
-
-	if (pdata->request_resources == NULL) {
-		dev_err(&client->dev, "request_resources() missing\n");
-		r = -EINVAL;
-		goto err_pdata;
-	}
-
-	r = pdata->request_resources(client);
-	if (r) {
-		dev_err(&client->dev, "Cannot get platform resources\n");
-		goto err_pdata;
-	}
-
-	info->gpio_en = pdata->get_gpio(NFC_GPIO_ENABLE);
-	info->gpio_fw = pdata->get_gpio(NFC_GPIO_FW_RESET);
-	info->gpio_irq = pdata->get_gpio(NFC_GPIO_IRQ);
-
-	pn544_hci_platform_init(info);
-
-	r = request_threaded_irq(client->irq, NULL, pn544_hci_irq_thread_fn,
-				 IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-				 PN544_HCI_DRIVER_NAME, info);
-	if (r < 0) {
-		dev_err(&client->dev, "Unable to register IRQ handler\n");
-		goto err_rti;
-	}
 
 	init_data.gate_count = ARRAY_SIZE(pn544_gates);
 
@@ -928,13 +823,11 @@ static int __devinit pn544_hci_probe(struct i2c_client *client,
 		    NFC_PROTO_NFC_DEP_MASK;
 
 	info->hdev = nfc_hci_allocate_device(&pn544_hci_ops, &init_data,
-					     protocols, LLC_SHDLC_NAME,
-					     PN544_FRAME_HEADROOM +
-					     PN544_CMDS_HEADROOM,
-					     PN544_FRAME_TAILROOM,
-					     PN544_HCI_LLC_MAX_PAYLOAD);
+					     protocols, llc_name,
+					     phy_headroom + PN544_CMDS_HEADROOM,
+					     phy_tailroom, phy_payload);
 	if (!info->hdev) {
-		dev_err(&client->dev, "Cannot allocate nfc hdev.\n");
+		pr_err("Cannot allocate nfc hdev.\n");
 		r = -ENOMEM;
 		goto err_alloc_hdev;
 	}
@@ -945,79 +838,25 @@ static int __devinit pn544_hci_probe(struct i2c_client *client,
 	if (r)
 		goto err_regdev;
 
+	*hdev = info->hdev;
+
 	return 0;
 
 err_regdev:
 	nfc_hci_free_device(info->hdev);
 
 err_alloc_hdev:
-	free_irq(client->irq, info);
-
-err_rti:
-	if (pdata->free_resources != NULL)
-		pdata->free_resources();
-
-err_pdata:
 	kfree(info);
 
 err_info_alloc:
 	return r;
 }
 
-static __devexit int pn544_hci_remove(struct i2c_client *client)
+void pn544_hci_remove(struct nfc_hci_dev *hdev)
 {
-	struct pn544_hci_info *info = i2c_get_clientdata(client);
-	struct pn544_nfc_platform_data *pdata = client->dev.platform_data;
-
-	dev_dbg(&client->dev, "%s\n", __func__);
-
-	nfc_hci_free_device(info->hdev);
-
-	if (info->state != PN544_ST_COLD) {
-		if (pdata->disable)
-			pdata->disable();
-	}
-
-	free_irq(client->irq, info);
-	if (pdata->free_resources)
-		pdata->free_resources();
+	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
 
+	nfc_hci_unregister_device(hdev);
+	nfc_hci_free_device(hdev);
 	kfree(info);
-
-	return 0;
 }
-
-static struct i2c_driver pn544_hci_driver = {
-	.driver = {
-		   .name = PN544_HCI_DRIVER_NAME,
-		  },
-	.probe = pn544_hci_probe,
-	.id_table = pn544_hci_id_table,
-	.remove = __devexit_p(pn544_hci_remove),
-};
-
-static int __init pn544_hci_init(void)
-{
-	int r;
-
-	pr_debug(DRIVER_DESC ": %s\n", __func__);
-
-	r = i2c_add_driver(&pn544_hci_driver);
-	if (r) {
-		pr_err(PN544_HCI_DRIVER_NAME ": driver registration failed\n");
-		return r;
-	}
-
-	return 0;
-}
-
-static void __exit pn544_hci_exit(void)
-{
-	i2c_del_driver(&pn544_hci_driver);
-}
-
-module_init(pn544_hci_init);
-module_exit(pn544_hci_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/pn544/pn544.h b/drivers/nfc/pn544/pn544.h
new file mode 100644
index 00000000000..f47c6454914
--- /dev/null
+++ b/drivers/nfc/pn544/pn544.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2011 - 2012  Intel Corporation. All rights reserved.
+ *
+ * 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.
+ */
+
+#ifndef __LOCAL_PN544_H_
+#define __LOCAL_PN544_H_
+
+#include <net/nfc/hci.h>
+
+#define DRIVER_DESC "HCI NFC driver for PN544"
+
+int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
+		    int phy_headroom, int phy_tailroom, int phy_payload,
+		    struct nfc_hci_dev **hdev);
+void pn544_hci_remove(struct nfc_hci_dev *hdev);
+
+#endif /* __LOCAL_PN544_H_ */