Merge tty-next into 3.6-rc1

This handles the merge issue in:
	arch/um/drivers/line.c
	arch/um/drivers/line.h
And resolves the duplicate patches that were in both trees do to the
tty-next branch not getting merged into 3.6-rc1.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

27 files changed, 220 insertions, 2359 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2661f6e366f..98a442da892 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -64,6 +64,7 @@ config AB8500_PWM
 	bool "AB8500 PWM support"
 	depends on AB8500_CORE && ARCH_U8500
 	select HAVE_PWM
+	depends on !PWM
 	help
 	  This driver exports functions to enable/disble/config/free Pulse
 	  Width Modulation in the Analog Baseband Chip AB8500.
@@ -511,7 +512,6 @@ config USB_SWITCH_FSA9480
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
-source "drivers/misc/iwmc3200top/Kconfig"
 source "drivers/misc/ti-st/Kconfig"
 source "drivers/misc/lis3lv02d/Kconfig"
 source "drivers/misc/carma/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 456972faaeb..b88df7a350b 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -36,7 +36,6 @@ obj-$(CONFIG_EP93XX_PWM)	+= ep93xx_pwm.o
 obj-$(CONFIG_DS1682)		+= ds1682.o
 obj-$(CONFIG_TI_DAC7512)	+= ti_dac7512.o
 obj-$(CONFIG_C2PORT)		+= c2port/
-obj-$(CONFIG_IWMC3200TOP)      += iwmc3200top/
 obj-$(CONFIG_HMC6352)		+= hmc6352.o
 obj-y				+= eeprom/
 obj-y				+= cb710/
diff --git a/drivers/misc/ab8500-pwm.c b/drivers/misc/ab8500-pwm.c
index 042a8fe4efa..d7a9aa14e5d 100644
--- a/drivers/misc/ab8500-pwm.c
+++ b/drivers/misc/ab8500-pwm.c
@@ -142,16 +142,10 @@ static int __devexit ab8500_pwm_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id ab8500_pwm_match[] = {
-	{ .compatible = "stericsson,ab8500-pwm", },
-	{}
-};
-
 static struct platform_driver ab8500_pwm_driver = {
 	.driver = {
 		.name = "ab8500-pwm",
 		.owner = THIS_MODULE,
-		.of_match_table = ab8500_pwm_match,
 	},
 	.probe = ab8500_pwm_probe,
 	.remove = __devexit_p(ab8500_pwm_remove),
diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c
index 85cc7710193..9d5eed75466 100644
--- a/drivers/misc/cb710/core.c
+++ b/drivers/misc/cb710/core.c
@@ -180,7 +180,7 @@ static int cb710_suspend(struct pci_dev *pdev, pm_message_t state)
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	if (state.event & PM_EVENT_SLEEP)
-		pci_set_power_state(pdev, PCI_D3cold);
+		pci_set_power_state(pdev, PCI_D3hot);
 	return 0;
 }
 
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 0842c2994ee..25003d6ceb5 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -19,7 +19,7 @@
 
 #include <linux/spi/spi.h>
 #include <linux/spi/eeprom.h>
-
+#include <linux/of.h>
 
 /*
  * NOTE: this is an *EEPROM* driver.  The vagaries of product naming
@@ -305,25 +305,54 @@ static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
 static int at25_probe(struct spi_device *spi)
 {
 	struct at25_data	*at25 = NULL;
-	const struct spi_eeprom *chip;
+	struct spi_eeprom	chip;
+	struct device_node	*np = spi->dev.of_node;
 	int			err;
 	int			sr;
 	int			addrlen;
 
 	/* Chip description */
-	chip = spi->dev.platform_data;
-	if (!chip) {
-		dev_dbg(&spi->dev, "no chip description\n");
-		err = -ENODEV;
-		goto fail;
-	}
+	if (!spi->dev.platform_data) {
+		if (np) {
+			u32 val;
+
+			memset(&chip, 0, sizeof(chip));
+			strncpy(chip.name, np->name, 10);
+
+			err = of_property_read_u32(np, "at25,byte-len", &val);
+			if (err) {
+				dev_dbg(&spi->dev, "invalid chip dt description\n");
+				goto fail;
+			}
+			chip.byte_len = val;
+
+			err = of_property_read_u32(np, "at25,addr-mode", &val);
+			if (err) {
+				dev_dbg(&spi->dev, "invalid chip dt description\n");
+				goto fail;
+			}
+			chip.flags = (u16)val;
+
+			err = of_property_read_u32(np, "at25,page-size", &val);
+			if (err) {
+				dev_dbg(&spi->dev, "invalid chip dt description\n");
+				goto fail;
+			}
+			chip.page_size = (u16)val;
+		} else {
+			dev_dbg(&spi->dev, "no chip description\n");
+			err = -ENODEV;
+			goto fail;
+		}
+	} else
+		chip = *(struct spi_eeprom *)spi->dev.platform_data;
 
 	/* For now we only support 8/16/24 bit addressing */
-	if (chip->flags & EE_ADDR1)
+	if (chip.flags & EE_ADDR1)
 		addrlen = 1;
-	else if (chip->flags & EE_ADDR2)
+	else if (chip.flags & EE_ADDR2)
 		addrlen = 2;
-	else if (chip->flags & EE_ADDR3)
+	else if (chip.flags & EE_ADDR3)
 		addrlen = 3;
 	else {
 		dev_dbg(&spi->dev, "unsupported address type\n");
@@ -348,7 +377,7 @@ static int at25_probe(struct spi_device *spi)
 	}
 
 	mutex_init(&at25->lock);
-	at25->chip = *chip;
+	at25->chip = chip;
 	at25->spi = spi_dev_get(spi);
 	dev_set_drvdata(&spi->dev, at25);
 	at25->addrlen = addrlen;
@@ -369,7 +398,7 @@ static int at25_probe(struct spi_device *spi)
 	at25->mem.read = at25_mem_read;
 
 	at25->bin.size = at25->chip.byte_len;
-	if (!(chip->flags & EE_READONLY)) {
+	if (!(chip.flags & EE_READONLY)) {
 		at25->bin.write = at25_bin_write;
 		at25->bin.attr.mode |= S_IWUSR;
 		at25->mem.write = at25_mem_write;
@@ -379,8 +408,8 @@ static int at25_probe(struct spi_device *spi)
 	if (err)
 		goto fail;
 
-	if (chip->setup)
-		chip->setup(&at25->mem, chip->context);
+	if (chip.setup)
+		chip.setup(&at25->mem, chip.context);
 
 	dev_info(&spi->dev, "%Zd %s %s eeprom%s, pagesize %u\n",
 		(at25->bin.size < 1024)
@@ -388,7 +417,7 @@ static int at25_probe(struct spi_device *spi)
 			: (at25->bin.size / 1024),
 		(at25->bin.size < 1024) ? "Byte" : "KByte",
 		at25->chip.name,
-		(chip->flags & EE_READONLY) ? " (readonly)" : "",
+		(chip.flags & EE_READONLY) ? " (readonly)" : "",
 		at25->chip.page_size);
 	return 0;
 fail:
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index fffc227181b..6df0da4085e 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -30,6 +30,7 @@
 
 static struct class *ilo_class;
 static unsigned int ilo_major;
+static unsigned int max_ccb = MIN_CCB;
 static char ilo_hwdev[MAX_ILO_DEV];
 
 static inline int get_entry_id(int entry)
@@ -424,7 +425,7 @@ static void ilo_set_reset(struct ilo_hwinfo *hw)
 	 * Mapped memory is zeroed on ilo reset, so set a per ccb flag
 	 * to indicate that this ccb needs to be closed and reopened.
 	 */
-	for (slot = 0; slot < MAX_CCB; slot++) {
+	for (slot = 0; slot < max_ccb; slot++) {
 		if (!hw->ccb_alloc[slot])
 			continue;
 		set_channel_reset(&hw->ccb_alloc[slot]->driver_ccb);
@@ -535,7 +536,7 @@ static int ilo_close(struct inode *ip, struct file *fp)
 	struct ilo_hwinfo *hw;
 	unsigned long flags;
 
-	slot = iminor(ip) % MAX_CCB;
+	slot = iminor(ip) % max_ccb;
 	hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev);
 
 	spin_lock(&hw->open_lock);
@@ -566,7 +567,7 @@ static int ilo_open(struct inode *ip, struct file *fp)
 	struct ilo_hwinfo *hw;
 	unsigned long flags;
 
-	slot = iminor(ip) % MAX_CCB;
+	slot = iminor(ip) % max_ccb;
 	hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev);
 
 	/* new ccb allocation */
@@ -663,7 +664,7 @@ static irqreturn_t ilo_isr(int irq, void *data)
 		ilo_set_reset(hw);
 	}
 
-	for (i = 0; i < MAX_CCB; i++) {
+	for (i = 0; i < max_ccb; i++) {
 		if (!hw->ccb_alloc[i])
 			continue;
 		if (pending & (1 << i))
@@ -697,14 +698,14 @@ static int __devinit ilo_map_device(struct pci_dev *pdev, struct ilo_hwinfo *hw)
 	}
 
 	/* map the adapter shared memory region */
-	hw->ram_vaddr = pci_iomap(pdev, 2, MAX_CCB * ILOHW_CCB_SZ);
+	hw->ram_vaddr = pci_iomap(pdev, 2, max_ccb * ILOHW_CCB_SZ);
 	if (hw->ram_vaddr == NULL) {
 		dev_err(&pdev->dev, "Error mapping shared mem\n");
 		goto mmio_free;
 	}
 
 	/* map the doorbell aperture */
-	hw->db_vaddr = pci_iomap(pdev, 3, MAX_CCB * ONE_DB_SIZE);
+	hw->db_vaddr = pci_iomap(pdev, 3, max_ccb * ONE_DB_SIZE);
 	if (hw->db_vaddr == NULL) {
 		dev_err(&pdev->dev, "Error mapping doorbell\n");
 		goto ram_free;
@@ -727,7 +728,7 @@ static void ilo_remove(struct pci_dev *pdev)
 	clear_device(ilo_hw);
 
 	minor = MINOR(ilo_hw->cdev.dev);
-	for (i = minor; i < minor + MAX_CCB; i++)
+	for (i = minor; i < minor + max_ccb; i++)
 		device_destroy(ilo_class, MKDEV(ilo_major, i));
 
 	cdev_del(&ilo_hw->cdev);
@@ -737,7 +738,7 @@ static void ilo_remove(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	kfree(ilo_hw);
-	ilo_hwdev[(minor / MAX_CCB)] = 0;
+	ilo_hwdev[(minor / max_ccb)] = 0;
 }
 
 static int __devinit ilo_probe(struct pci_dev *pdev,
@@ -746,6 +747,11 @@ static int __devinit ilo_probe(struct pci_dev *pdev,
 	int devnum, minor, start, error;
 	struct ilo_hwinfo *ilo_hw;
 
+	if (max_ccb > MAX_CCB)
+		max_ccb = MAX_CCB;
+	else if (max_ccb < MIN_CCB)
+		max_ccb = MIN_CCB;
+
 	/* find a free range for device files */
 	for (devnum = 0; devnum < MAX_ILO_DEV; devnum++) {
 		if (ilo_hwdev[devnum] == 0) {
@@ -795,14 +801,14 @@ static int __devinit ilo_probe(struct pci_dev *pdev,
 
 	cdev_init(&ilo_hw->cdev, &ilo_fops);
 	ilo_hw->cdev.owner = THIS_MODULE;
-	start = devnum * MAX_CCB;
-	error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), MAX_CCB);
+	start = devnum * max_ccb;
+	error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), max_ccb);
 	if (error) {
 		dev_err(&pdev->dev, "Could not add cdev\n");
 		goto remove_isr;
 	}
 
-	for (minor = 0 ; minor < MAX_CCB; minor++) {
+	for (minor = 0 ; minor < max_ccb; minor++) {
 		struct device *dev;
 		dev = device_create(ilo_class, &pdev->dev,
 				    MKDEV(ilo_major, minor), NULL,
@@ -879,11 +885,14 @@ static void __exit ilo_exit(void)
 	class_destroy(ilo_class);
 }
 
-MODULE_VERSION("1.2");
+MODULE_VERSION("1.3");
 MODULE_ALIAS(ILO_NAME);
 MODULE_DESCRIPTION(ILO_NAME);
 MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>");
 MODULE_LICENSE("GPL v2");
 
+module_param(max_ccb, uint, 0444);
+MODULE_PARM_DESC(max_ccb, "Maximum number of HP iLO channels to attach (8)");
+
 module_init(ilo_init);
 module_exit(ilo_exit);
diff --git a/drivers/misc/hpilo.h b/drivers/misc/hpilo.h
index 54e43adbdea..b97672e0cf9 100644
--- a/drivers/misc/hpilo.h
+++ b/drivers/misc/hpilo.h
@@ -14,7 +14,9 @@
 #define ILO_NAME "hpilo"
 
 /* max number of open channel control blocks per device, hw limited to 32 */
-#define MAX_CCB		8
+#define MAX_CCB	       24
+/* min number of open channel control blocks per device, hw limited to 32 */
+#define MIN_CCB		8
 /* max number of supported devices */
 #define MAX_ILO_DEV	1
 /* max number of files */
diff --git a/drivers/misc/iwmc3200top/Kconfig b/drivers/misc/iwmc3200top/Kconfig
deleted file mode 100644
index 9e4b88fb57f..00000000000
--- a/drivers/misc/iwmc3200top/Kconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-config IWMC3200TOP
-        tristate "Intel Wireless MultiCom Top Driver"
-        depends on MMC && EXPERIMENTAL
-        select FW_LOADER
-	---help---
-	  Intel Wireless MultiCom 3200 Top driver is responsible for
-	  for firmware load and enabled coms enumeration
-
-config IWMC3200TOP_DEBUG
-	bool "Enable full debug output of iwmc3200top Driver"
-	depends on IWMC3200TOP
-	---help---
-	  Enable full debug output of iwmc3200top Driver
-
-config IWMC3200TOP_DEBUGFS
-	bool "Enable Debugfs debugging interface for iwmc3200top"
-	depends on IWMC3200TOP
-	---help---
-	  Enable creation of debugfs files for iwmc3200top
-
diff --git a/drivers/misc/iwmc3200top/Makefile b/drivers/misc/iwmc3200top/Makefile
deleted file mode 100644
index fbf53fb4634..00000000000
--- a/drivers/misc/iwmc3200top/Makefile
+++ /dev/null
@@ -1,29 +0,0 @@
-# iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
-# drivers/misc/iwmc3200top/Makefile
-#
-# Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
-#
-#
-# Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
-#  -
-#
-#
-
-obj-$(CONFIG_IWMC3200TOP)	+= iwmc3200top.o
-iwmc3200top-objs	:= main.o fw-download.o
-iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUG) += log.o
-iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUGFS) += debugfs.o
diff --git a/drivers/misc/iwmc3200top/debugfs.c b/drivers/misc/iwmc3200top/debugfs.c
deleted file mode 100644
index 62fbaec4820..00000000000
--- a/drivers/misc/iwmc3200top/debugfs.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/debufs.c
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/sdio.h>
-#include <linux/debugfs.h>
-
-#include "iwmc3200top.h"
-#include "fw-msg.h"
-#include "log.h"
-#include "debugfs.h"
-
-
-
-/*      Constants definition        */
-#define HEXADECIMAL_RADIX	16
-
-/*      Functions definition        */
-
-
-#define DEBUGFS_ADD(name, parent) do {					\
-	dbgfs->dbgfs_##parent##_files.file_##name =			\
-	debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv,	\
-				&iwmct_dbgfs_##name##_ops);		\
-} while (0)
-
-#define DEBUGFS_RM(name)  do {		\
-	debugfs_remove(name);		\
-	name = NULL;			\
-} while (0)
-
-#define DEBUGFS_READ_FUNC(name)						\
-ssize_t iwmct_dbgfs_##name##_read(struct file *file,			\
-				  char __user *user_buf,		\
-				  size_t count, loff_t *ppos);
-
-#define DEBUGFS_WRITE_FUNC(name)					\
-ssize_t iwmct_dbgfs_##name##_write(struct file *file,			\
-				   const char __user *user_buf,		\
-				   size_t count, loff_t *ppos);
-
-#define DEBUGFS_READ_FILE_OPS(name)					\
-	DEBUGFS_READ_FUNC(name)						\
-	static const struct file_operations iwmct_dbgfs_##name##_ops = {  \
-		.read = iwmct_dbgfs_##name##_read,			\
-		.open = iwmct_dbgfs_open_file_generic,			\
-		.llseek = generic_file_llseek,				\
-	};
-
-#define DEBUGFS_WRITE_FILE_OPS(name)					\
-	DEBUGFS_WRITE_FUNC(name)					\
-	static const struct file_operations iwmct_dbgfs_##name##_ops = {  \
-		.write = iwmct_dbgfs_##name##_write,			\
-		.open = iwmct_dbgfs_open_file_generic,			\
-		.llseek = generic_file_llseek,				\
-	};
-
-#define DEBUGFS_READ_WRITE_FILE_OPS(name)				\
-	DEBUGFS_READ_FUNC(name)						\
-	DEBUGFS_WRITE_FUNC(name)					\
-	static const struct file_operations iwmct_dbgfs_##name##_ops = {\
-		.write = iwmct_dbgfs_##name##_write,			\
-		.read = iwmct_dbgfs_##name##_read,			\
-		.open = iwmct_dbgfs_open_file_generic,			\
-		.llseek = generic_file_llseek,				\
-	};
-
-
-/*      Debugfs file ops definitions        */
-
-/*
- * Create the debugfs files and directories
- *
- */
-void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
-{
-	struct iwmct_debugfs *dbgfs;
-
-	dbgfs = kzalloc(sizeof(struct iwmct_debugfs), GFP_KERNEL);
-	if (!dbgfs) {
-		LOG_ERROR(priv, DEBUGFS, "failed to allocate %zd bytes\n",
-					sizeof(struct iwmct_debugfs));
-		return;
-	}
-
-	priv->dbgfs = dbgfs;
-	dbgfs->name = name;
-	dbgfs->dir_drv = debugfs_create_dir(name, NULL);
-	if (!dbgfs->dir_drv) {
-		LOG_ERROR(priv, DEBUGFS, "failed to create debugfs dir\n");
-		return;
-	}
-
-	return;
-}
-
-/**
- * Remove the debugfs files and directories
- *
- */
-void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
-{
-	if (!dbgfs)
-		return;
-
-	DEBUGFS_RM(dbgfs->dir_drv);
-	kfree(dbgfs);
-	dbgfs = NULL;
-}
-
diff --git a/drivers/misc/iwmc3200top/debugfs.h b/drivers/misc/iwmc3200top/debugfs.h
deleted file mode 100644
index 71d45759b40..00000000000
--- a/drivers/misc/iwmc3200top/debugfs.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/debufs.h
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#ifndef __DEBUGFS_H__
-#define __DEBUGFS_H__
-
-
-#ifdef CONFIG_IWMC3200TOP_DEBUGFS
-
-struct iwmct_debugfs {
-	const char *name;
-	struct dentry *dir_drv;
-	struct dir_drv_files {
-	} dbgfs_drv_files;
-};
-
-void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name);
-void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs);
-
-#else /* CONFIG_IWMC3200TOP_DEBUGFS */
-
-struct iwmct_debugfs;
-
-static inline void
-iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
-{}
-
-static inline void
-iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
-{}
-
-#endif /* CONFIG_IWMC3200TOP_DEBUGFS */
-
-#endif /* __DEBUGFS_H__ */
-
diff --git a/drivers/misc/iwmc3200top/fw-download.c b/drivers/misc/iwmc3200top/fw-download.c
deleted file mode 100644
index e27afde6e99..00000000000
--- a/drivers/misc/iwmc3200top/fw-download.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/fw-download.c
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#include <linux/firmware.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/slab.h>
-#include <asm/unaligned.h>
-
-#include "iwmc3200top.h"
-#include "log.h"
-#include "fw-msg.h"
-
-#define CHECKSUM_BYTES_NUM sizeof(u32)
-
-/**
-  init parser struct with file
- */
-static int iwmct_fw_parser_init(struct iwmct_priv *priv, const u8 *file,
-			      size_t file_size, size_t block_size)
-{
-	struct iwmct_parser *parser = &priv->parser;
-	struct iwmct_fw_hdr *fw_hdr = &parser->versions;
-
-	LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
-
-	LOG_INFO(priv, FW_DOWNLOAD, "file_size=%zd\n", file_size);
-
-	parser->file = file;
-	parser->file_size = file_size;
-	parser->cur_pos = 0;
-	parser->entry_point = 0;
-	parser->buf = kzalloc(block_size, GFP_KERNEL);
-	if (!parser->buf) {
-		LOG_ERROR(priv, FW_DOWNLOAD, "kzalloc error\n");
-		return -ENOMEM;
-	}
-	parser->buf_size = block_size;
-
-	/* extract fw versions */
-	memcpy(fw_hdr, parser->file, sizeof(struct iwmct_fw_hdr));
-	LOG_INFO(priv, FW_DOWNLOAD, "fw versions are:\n"
-		"top %u.%u.%u gps %u.%u.%u bt %u.%u.%u tic %s\n",
-		fw_hdr->top_major, fw_hdr->top_minor, fw_hdr->top_revision,
-		fw_hdr->gps_major, fw_hdr->gps_minor, fw_hdr->gps_revision,
-		fw_hdr->bt_major, fw_hdr->bt_minor, fw_hdr->bt_revision,
-		fw_hdr->tic_name);
-
-	parser->cur_pos += sizeof(struct iwmct_fw_hdr);
-
-	LOG_TRACE(priv, FW_DOWNLOAD, "<--\n");
-	return 0;
-}
-
-static bool iwmct_checksum(struct iwmct_priv *priv)
-{
-	struct iwmct_parser *parser = &priv->parser;
-	__le32 *file = (__le32 *)parser->file;
-	int i, pad, steps;
-	u32 accum = 0;
-	u32 checksum;
-	u32 mask = 0xffffffff;
-
-	pad = (parser->file_size - CHECKSUM_BYTES_NUM) % 4;
-	steps =  (parser->file_size - CHECKSUM_BYTES_NUM) / 4;
-
-	LOG_INFO(priv, FW_DOWNLOAD, "pad=%d steps=%d\n", pad, steps);
-
-	for (i = 0; i < steps; i++)
-		accum += le32_to_cpu(file[i]);
-
-	if (pad) {
-		mask <<= 8 * (4 - pad);
-		accum += le32_to_cpu(file[steps]) & mask;
-	}
-
-	checksum = get_unaligned_le32((__le32 *)(parser->file +
-			parser->file_size - CHECKSUM_BYTES_NUM));
-
-	LOG_INFO(priv, FW_DOWNLOAD,
-		"compare checksum accum=0x%x to checksum=0x%x\n",
-		accum, checksum);
-
-	return checksum == accum;
-}
-
-static int iwmct_parse_next_section(struct iwmct_priv *priv, const u8 **p_sec,
-				  size_t *sec_size, __le32 *sec_addr)
-{
-	struct iwmct_parser *parser = &priv->parser;
-	struct iwmct_dbg *dbg = &priv->dbg;
-	struct iwmct_fw_sec_hdr *sec_hdr;
-
-	LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
-
-	while (parser->cur_pos + sizeof(struct iwmct_fw_sec_hdr)
-		<= parser->file_size) {
-
-		sec_hdr = (struct iwmct_fw_sec_hdr *)
-				(parser->file + parser->cur_pos);
-		parser->cur_pos += sizeof(struct iwmct_fw_sec_hdr);
-
-		LOG_INFO(priv, FW_DOWNLOAD,
-			"sec hdr: type=%s addr=0x%x size=%d\n",
-			sec_hdr->type, sec_hdr->target_addr,
-			sec_hdr->data_size);
-
-		if (strcmp(sec_hdr->type, "ENT") == 0)
-			parser->entry_point = le32_to_cpu(sec_hdr->target_addr);
-		else if (strcmp(sec_hdr->type, "LBL") == 0)
-			strcpy(dbg->label_fw, parser->file + parser->cur_pos);
-		else if (((strcmp(sec_hdr->type, "TOP") == 0) &&
-			  (priv->barker & BARKER_DNLOAD_TOP_MSK)) ||
-			 ((strcmp(sec_hdr->type, "GPS") == 0) &&
-			  (priv->barker & BARKER_DNLOAD_GPS_MSK)) ||
-			 ((strcmp(sec_hdr->type, "BTH") == 0) &&
-			  (priv->barker & BARKER_DNLOAD_BT_MSK))) {
-			*sec_addr = sec_hdr->target_addr;
-			*sec_size = le32_to_cpu(sec_hdr->data_size);
-			*p_sec = parser->file + parser->cur_pos;
-			parser->cur_pos += le32_to_cpu(sec_hdr->data_size);
-			return 1;
-		} else if (strcmp(sec_hdr->type, "LOG") != 0)
-			LOG_WARNING(priv, FW_DOWNLOAD,
-				    "skipping section type %s\n",
-				    sec_hdr->type);
-
-		parser->cur_pos += le32_to_cpu(sec_hdr->data_size);
-		LOG_INFO(priv, FW_DOWNLOAD,
-			"finished with section cur_pos=%zd\n", parser->cur_pos);
-	}
-
-	LOG_TRACE(priv, INIT, "<--\n");
-	return 0;
-}
-
-static int iwmct_download_section(struct iwmct_priv *priv, const u8 *p_sec,
-				size_t sec_size, __le32 addr)
-{
-	struct iwmct_parser *parser = &priv->parser;
-	struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf;
-	const u8 *cur_block = p_sec;
-	size_t sent = 0;
-	int cnt = 0;
-	int ret = 0;
-	u32 cmd = 0;
-
-	LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
-	LOG_INFO(priv, FW_DOWNLOAD, "Download address 0x%x size 0x%zx\n",
-				addr, sec_size);
-
-	while (sent < sec_size) {
-		int i;
-		u32 chksm = 0;
-		u32 reset = atomic_read(&priv->reset);
-		/* actual FW data */
-		u32 data_size = min(parser->buf_size - sizeof(*hdr),
-				    sec_size - sent);
-		/* Pad to block size */
-		u32 trans_size = (data_size + sizeof(*hdr) +
-				  IWMC_SDIO_BLK_SIZE - 1) &
-				  ~(IWMC_SDIO_BLK_SIZE - 1);
-		++cnt;
-
-		/* in case of reset, interrupt FW DOWNLAOD */
-		if (reset) {
-			LOG_INFO(priv, FW_DOWNLOAD,
-				 "Reset detected. Abort FW download!!!");
-			ret = -ECANCELED;
-			goto exit;
-		}
-
-		memset(parser->buf, 0, parser->buf_size);
-		cmd |= IWMC_OPCODE_WRITE << CMD_HDR_OPCODE_POS;
-		cmd |= IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS;
-		cmd |= (priv->dbg.direct ? 1 : 0) << CMD_HDR_DIRECT_ACCESS_POS;
-		cmd |= (priv->dbg.checksum ? 1 : 0) << CMD_HDR_USE_CHECKSUM_POS;
-		hdr->data_size = cpu_to_le32(data_size);
-		hdr->target_addr = addr;
-
-		/* checksum is allowed for sizes divisible by 4 */
-		if (data_size & 0x3)
-			cmd &= ~CMD_HDR_USE_CHECKSUM_MSK;
-
-		memcpy(hdr->data, cur_block, data_size);
-
-
-		if (cmd & CMD_HDR_USE_CHECKSUM_MSK) {
-
-			chksm = data_size + le32_to_cpu(addr) + cmd;
-			for (i = 0; i < data_size >> 2; i++)
-				chksm += ((u32 *)cur_block)[i];
-
-			hdr->block_chksm = cpu_to_le32(chksm);
-			LOG_INFO(priv, FW_DOWNLOAD, "Checksum = 0x%X\n",
-				 hdr->block_chksm);
-		}
-
-		LOG_INFO(priv, FW_DOWNLOAD, "trans#%d, len=%d, sent=%zd, "
-				"sec_size=%zd, startAddress 0x%X\n",
-				cnt, trans_size, sent, sec_size, addr);
-
-		if (priv->dbg.dump)
-			LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, trans_size);
-
-
-		hdr->cmd = cpu_to_le32(cmd);
-		/* send it down */
-		/* TODO: add more proper sending and error checking */
-		ret = iwmct_tx(priv, parser->buf, trans_size);
-		if (ret != 0) {
-			LOG_INFO(priv, FW_DOWNLOAD,
-				"iwmct_tx returned %d\n", ret);
-			goto exit;
-		}
-
-		addr = cpu_to_le32(le32_to_cpu(addr) + data_size);
-		sent += data_size;
-		cur_block = p_sec + sent;
-
-		if (priv->dbg.blocks && (cnt + 1) >= priv->dbg.blocks) {
-			LOG_INFO(priv, FW_DOWNLOAD,
-				"Block number limit is reached [%d]\n",
-				priv->dbg.blocks);
-			break;
-		}
-	}
-
-	if (sent < sec_size)
-		ret = -EINVAL;
-exit:
-	LOG_TRACE(priv, FW_DOWNLOAD, "<--\n");
-	return ret;
-}
-
-static int iwmct_kick_fw(struct iwmct_priv *priv, bool jump)
-{
-	struct iwmct_parser *parser = &priv->parser;
-	struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf;
-	int ret;
-	u32 cmd;
-
-	LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
-
-	memset(parser->buf, 0, parser->buf_size);
-	cmd = IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS;
-	if (jump) {
-		cmd |= IWMC_OPCODE_JUMP << CMD_HDR_OPCODE_POS;
-		hdr->target_addr = cpu_to_le32(parser->entry_point);
-		LOG_INFO(priv, FW_DOWNLOAD, "jump address 0x%x\n",
-				parser->entry_point);
-	} else {
-		cmd |= IWMC_OPCODE_LAST_COMMAND << CMD_HDR_OPCODE_POS;
-		LOG_INFO(priv, FW_DOWNLOAD, "last command\n");
-	}
-
-	hdr->cmd = cpu_to_le32(cmd);
-
-	LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, sizeof(*hdr));
-	/* send it down */
-	/* TODO: add more proper sending and error checking */
-	ret = iwmct_tx(priv, parser->buf, IWMC_SDIO_BLK_SIZE);
-	if (ret)
-		LOG_INFO(priv, FW_DOWNLOAD, "iwmct_tx returned %d", ret);
-
-	LOG_TRACE(priv, FW_DOWNLOAD, "<--\n");
-	return 0;
-}
-
-int iwmct_fw_load(struct iwmct_priv *priv)
-{
-	const u8 *fw_name = FW_NAME(FW_API_VER);
-	const struct firmware *raw;
-	const u8 *pdata;
-	size_t len;
-	__le32 addr;
-	int ret;
-
-
-	LOG_INFO(priv, FW_DOWNLOAD, "barker download request 0x%x is:\n",
-			priv->barker);
-	LOG_INFO(priv, FW_DOWNLOAD, "*******  Top FW %s requested ********\n",
-			(priv->barker & BARKER_DNLOAD_TOP_MSK) ? "was" : "not");
-	LOG_INFO(priv, FW_DOWNLOAD, "*******  GPS FW %s requested ********\n",
-			(priv->barker & BARKER_DNLOAD_GPS_MSK) ? "was" : "not");
-	LOG_INFO(priv, FW_DOWNLOAD, "*******  BT FW %s requested ********\n",
-			(priv->barker & BARKER_DNLOAD_BT_MSK) ? "was" : "not");
-
-
-	/* get the firmware */
-	ret = request_firmware(&raw, fw_name, &priv->func->dev);
-	if (ret < 0) {
-		LOG_ERROR(priv, FW_DOWNLOAD, "%s request_firmware failed %d\n",
-			  fw_name, ret);
-		goto exit;
-	}
-
-	if (raw->size < sizeof(struct iwmct_fw_sec_hdr)) {
-		LOG_ERROR(priv, FW_DOWNLOAD, "%s smaller then (%zd) (%zd)\n",
-			  fw_name, sizeof(struct iwmct_fw_sec_hdr), raw->size);
-		goto exit;
-	}
-
-	LOG_INFO(priv, FW_DOWNLOAD, "Read firmware '%s'\n", fw_name);
-
-	/* clear parser struct */
-	ret = iwmct_fw_parser_init(priv, raw->data, raw->size, priv->trans_len);
-	if (ret < 0) {
-		LOG_ERROR(priv, FW_DOWNLOAD,
-			  "iwmct_parser_init failed: Reason %d\n", ret);
-		goto exit;
-	}
-
-	if (!iwmct_checksum(priv)) {
-		LOG_ERROR(priv, FW_DOWNLOAD, "checksum error\n");
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	/* download firmware to device */
-	while (iwmct_parse_next_section(priv, &pdata, &len, &addr)) {
-		ret = iwmct_download_section(priv, pdata, len, addr);
-		if (ret) {
-			LOG_ERROR(priv, FW_DOWNLOAD,
-				  "%s download section failed\n", fw_name);
-			goto exit;
-		}
-	}
-
-	ret = iwmct_kick_fw(priv, !!(priv->barker & BARKER_DNLOAD_JUMP_MSK));
-
-exit:
-	kfree(priv->parser.buf);
-	release_firmware(raw);
-	return ret;
-}
diff --git a/drivers/misc/iwmc3200top/fw-msg.h b/drivers/misc/iwmc3200top/fw-msg.h
deleted file mode 100644
index 9e26b75bd48..00000000000
--- a/drivers/misc/iwmc3200top/fw-msg.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/fw-msg.h
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#ifndef __FWMSG_H__
-#define __FWMSG_H__
-
-#define COMM_TYPE_D2H           	0xFF
-#define COMM_TYPE_H2D           	0xEE
-
-#define COMM_CATEGORY_OPERATIONAL      	0x00
-#define COMM_CATEGORY_DEBUG            	0x01
-#define COMM_CATEGORY_TESTABILITY      	0x02
-#define COMM_CATEGORY_DIAGNOSTICS      	0x03
-
-#define OP_DBG_ZSTR_MSG			cpu_to_le16(0x1A)
-
-#define FW_LOG_SRC_MAX			32
-#define FW_LOG_SRC_ALL			255
-
-#define FW_STRING_TABLE_ADDR		cpu_to_le32(0x0C000000)
-
-#define CMD_DBG_LOG_LEVEL		cpu_to_le16(0x0001)
-#define CMD_TST_DEV_RESET		cpu_to_le16(0x0060)
-#define CMD_TST_FUNC_RESET		cpu_to_le16(0x0062)
-#define CMD_TST_IFACE_RESET		cpu_to_le16(0x0064)
-#define CMD_TST_CPU_UTILIZATION		cpu_to_le16(0x0065)
-#define CMD_TST_TOP_DEEP_SLEEP		cpu_to_le16(0x0080)
-#define CMD_TST_WAKEUP			cpu_to_le16(0x0081)
-#define CMD_TST_FUNC_WAKEUP		cpu_to_le16(0x0082)
-#define CMD_TST_FUNC_DEEP_SLEEP_REQUEST	cpu_to_le16(0x0083)
-#define CMD_TST_GET_MEM_DUMP		cpu_to_le16(0x0096)
-
-#define OP_OPR_ALIVE			cpu_to_le16(0x0010)
-#define OP_OPR_CMD_ACK			cpu_to_le16(0x001F)
-#define OP_OPR_CMD_NACK			cpu_to_le16(0x0020)
-#define OP_TST_MEM_DUMP			cpu_to_le16(0x0043)
-
-#define CMD_FLAG_PADDING_256		0x80
-
-#define FW_HCMD_BLOCK_SIZE      	256
-
-struct msg_hdr {
-	u8 type;
-	u8 category;
-	__le16 opcode;
-	u8 seqnum;
-	u8 flags;
-	__le16 length;
-} __attribute__((__packed__));
-
-struct log_hdr {
-	__le32 timestamp;
-	u8 severity;
-	u8 logsource;
-	__le16 reserved;
-} __attribute__((__packed__));
-
-struct mdump_hdr {
-	u8 dmpid;
-	u8 frag;
-	__le16 size;
-	__le32 addr;
-} __attribute__((__packed__));
-
-struct top_msg {
-	struct msg_hdr hdr;
-	union {
-		/* D2H messages */
-		struct {
-			struct log_hdr log_hdr;
-			u8 data[1];
-		} __attribute__((__packed__)) log;
-
-		struct {
-			struct log_hdr log_hdr;
-			struct mdump_hdr md_hdr;
-			u8 data[1];
-		} __attribute__((__packed__)) mdump;
-
-		/* H2D messages */
-		struct {
-			u8 logsource;
-			u8 sevmask;
-		} __attribute__((__packed__)) logdefs[FW_LOG_SRC_MAX];
-		struct mdump_hdr mdump_req;
-	} u;
-} __attribute__((__packed__));
-
-
-#endif /* __FWMSG_H__ */
diff --git a/drivers/misc/iwmc3200top/iwmc3200top.h b/drivers/misc/iwmc3200top/iwmc3200top.h
deleted file mode 100644
index 620973ed8bf..00000000000
--- a/drivers/misc/iwmc3200top/iwmc3200top.h
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/iwmc3200top.h
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#ifndef __IWMC3200TOP_H__
-#define __IWMC3200TOP_H__
-
-#include <linux/workqueue.h>
-
-#define DRV_NAME "iwmc3200top"
-#define FW_API_VER 1
-#define _FW_NAME(api) DRV_NAME "." #api ".fw"
-#define FW_NAME(api) _FW_NAME(api)
-
-#define IWMC_SDIO_BLK_SIZE			256
-#define IWMC_DEFAULT_TR_BLK			64
-#define IWMC_SDIO_DATA_ADDR			0x0
-#define IWMC_SDIO_INTR_ENABLE_ADDR		0x14
-#define IWMC_SDIO_INTR_STATUS_ADDR		0x13
-#define IWMC_SDIO_INTR_CLEAR_ADDR		0x13
-#define IWMC_SDIO_INTR_GET_SIZE_ADDR		0x2C
-
-#define COMM_HUB_HEADER_LENGTH 16
-#define LOGGER_HEADER_LENGTH   10
-
-
-#define BARKER_DNLOAD_BT_POS		0
-#define BARKER_DNLOAD_BT_MSK		BIT(BARKER_DNLOAD_BT_POS)
-#define BARKER_DNLOAD_GPS_POS		1
-#define BARKER_DNLOAD_GPS_MSK		BIT(BARKER_DNLOAD_GPS_POS)
-#define BARKER_DNLOAD_TOP_POS		2
-#define BARKER_DNLOAD_TOP_MSK		BIT(BARKER_DNLOAD_TOP_POS)
-#define BARKER_DNLOAD_RESERVED1_POS	3
-#define BARKER_DNLOAD_RESERVED1_MSK	BIT(BARKER_DNLOAD_RESERVED1_POS)
-#define BARKER_DNLOAD_JUMP_POS		4
-#define BARKER_DNLOAD_JUMP_MSK		BIT(BARKER_DNLOAD_JUMP_POS)
-#define BARKER_DNLOAD_SYNC_POS		5
-#define BARKER_DNLOAD_SYNC_MSK		BIT(BARKER_DNLOAD_SYNC_POS)
-#define BARKER_DNLOAD_RESERVED2_POS	6
-#define BARKER_DNLOAD_RESERVED2_MSK	(0x3 << BARKER_DNLOAD_RESERVED2_POS)
-#define BARKER_DNLOAD_BARKER_POS	8
-#define BARKER_DNLOAD_BARKER_MSK	(0xffffff << BARKER_DNLOAD_BARKER_POS)
-
-#define IWMC_BARKER_REBOOT 	(0xdeadbe << BARKER_DNLOAD_BARKER_POS)
-/* whole field barker */
-#define IWMC_BARKER_ACK 	0xfeedbabe
-
-#define IWMC_CMD_SIGNATURE 	0xcbbc
-
-#define CMD_HDR_OPCODE_POS		0
-#define CMD_HDR_OPCODE_MSK_MSK		(0xf << CMD_HDR_OPCODE_MSK_POS)
-#define CMD_HDR_RESPONSE_CODE_POS	4
-#define CMD_HDR_RESPONSE_CODE_MSK	(0xf << CMD_HDR_RESPONSE_CODE_POS)
-#define CMD_HDR_USE_CHECKSUM_POS	8
-#define CMD_HDR_USE_CHECKSUM_MSK	BIT(CMD_HDR_USE_CHECKSUM_POS)
-#define CMD_HDR_RESPONSE_REQUIRED_POS	9
-#define CMD_HDR_RESPONSE_REQUIRED_MSK	BIT(CMD_HDR_RESPONSE_REQUIRED_POS)
-#define CMD_HDR_DIRECT_ACCESS_POS	10
-#define CMD_HDR_DIRECT_ACCESS_MSK	BIT(CMD_HDR_DIRECT_ACCESS_POS)
-#define CMD_HDR_RESERVED_POS		11
-#define CMD_HDR_RESERVED_MSK		BIT(0x1f << CMD_HDR_RESERVED_POS)
-#define CMD_HDR_SIGNATURE_POS		16
-#define CMD_HDR_SIGNATURE_MSK		BIT(0xffff << CMD_HDR_SIGNATURE_POS)
-
-enum {
-	IWMC_OPCODE_PING = 0,
-	IWMC_OPCODE_READ = 1,
-	IWMC_OPCODE_WRITE = 2,
-	IWMC_OPCODE_JUMP = 3,
-	IWMC_OPCODE_REBOOT = 4,
-	IWMC_OPCODE_PERSISTENT_WRITE = 5,
-	IWMC_OPCODE_PERSISTENT_READ = 6,
-	IWMC_OPCODE_READ_MODIFY_WRITE = 7,
-	IWMC_OPCODE_LAST_COMMAND = 15
-};
-
-struct iwmct_fw_load_hdr {
-	__le32 cmd;
-	__le32 target_addr;
-	__le32 data_size;
-	__le32 block_chksm;
-	u8 data[0];
-};
-
-/**
- * struct iwmct_fw_hdr
- * holds all sw components versions
- */
-struct iwmct_fw_hdr {
-	u8 top_major;
-	u8 top_minor;
-	u8 top_revision;
-	u8 gps_major;
-	u8 gps_minor;
-	u8 gps_revision;
-	u8 bt_major;
-	u8 bt_minor;
-	u8 bt_revision;
-	u8 tic_name[31];
-};
-
-/**
- * struct iwmct_fw_sec_hdr
- * @type: function type
- * @data_size: section's data size
- * @target_addr: download address
- */
-struct iwmct_fw_sec_hdr {
-	u8 type[4];
-	__le32 data_size;
-	__le32 target_addr;
-};
-
-/**
- * struct iwmct_parser
- * @file: fw image
- * @file_size: fw size
- * @cur_pos: position in file
- * @buf: temp buf for download
- * @buf_size: size of buf
- * @entry_point: address to jump in fw kick-off
- */
-struct iwmct_parser {
-	const u8 *file;
-	size_t file_size;
-	size_t cur_pos;
-	u8 *buf;
-	size_t buf_size;
-	u32 entry_point;
-	struct iwmct_fw_hdr versions;
-};
-
-
-struct iwmct_work_struct {
-	struct list_head list;
-	ssize_t iosize;
-};
-
-struct iwmct_dbg {
-	int blocks;
-	bool dump;
-	bool jump;
-	bool direct;
-	bool checksum;
-	bool fw_download;
-	int block_size;
-	int download_trans_blks;
-
-	char label_fw[256];
-};
-
-struct iwmct_debugfs;
-
-struct iwmct_priv {
-	struct sdio_func *func;
-	struct iwmct_debugfs *dbgfs;
-	struct iwmct_parser parser;
-	atomic_t reset;
-	atomic_t dev_sync;
-	u32 trans_len;
-	u32 barker;
-	struct iwmct_dbg dbg;
-
-	/* drivers work items */
-	struct work_struct bus_rescan_worker;
-	struct work_struct isr_worker;
-
-	/* drivers wait queue */
-	wait_queue_head_t wait_q;
-
-	/* rx request list */
-	struct list_head read_req_list;
-};
-
-extern int iwmct_tx(struct iwmct_priv *priv, void *src, int count);
-extern int iwmct_fw_load(struct iwmct_priv *priv);
-
-extern void iwmct_dbg_init_params(struct iwmct_priv *drv);
-extern void iwmct_dbg_init_drv_attrs(struct device_driver *drv);
-extern void iwmct_dbg_remove_drv_attrs(struct device_driver *drv);
-extern int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len);
-
-#endif  /*  __IWMC3200TOP_H__  */
diff --git a/drivers/misc/iwmc3200top/log.c b/drivers/misc/iwmc3200top/log.c
deleted file mode 100644
index a36a55a49ca..00000000000
--- a/drivers/misc/iwmc3200top/log.c
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/log.c
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/slab.h>
-#include <linux/ctype.h>
-#include "fw-msg.h"
-#include "iwmc3200top.h"
-#include "log.h"
-
-/* Maximal hexadecimal string size of the FW memdump message */
-#define LOG_MSG_SIZE_MAX		12400
-
-/* iwmct_logdefs is a global used by log macros */
-u8 iwmct_logdefs[LOG_SRC_MAX];
-static u8 iwmct_fw_logdefs[FW_LOG_SRC_MAX];
-
-
-static int _log_set_log_filter(u8 *logdefs, int size, u8 src, u8 logmask)
-{
-	int i;
-
-	if (src < size)
-		logdefs[src] = logmask;
-	else if (src == LOG_SRC_ALL)
-		for (i = 0; i < size; i++)
-			logdefs[i] = logmask;
-	else
-		return -1;
-
-	return 0;
-}
-
-
-int iwmct_log_set_filter(u8 src, u8 logmask)
-{
-	return _log_set_log_filter(iwmct_logdefs, LOG_SRC_MAX, src, logmask);
-}
-
-
-int iwmct_log_set_fw_filter(u8 src, u8 logmask)
-{
-	return _log_set_log_filter(iwmct_fw_logdefs,
-				   FW_LOG_SRC_MAX, src, logmask);
-}
-
-
-static int log_msg_format_hex(char *str, int slen, u8 *ibuf,
-			      int ilen, char *pref)
-{
-	int pos = 0;
-	int i;
-	int len;
-
-	for (pos = 0, i = 0; pos < slen - 2 && pref[i] != '\0'; i++, pos++)
-		str[pos] = pref[i];
-
-	for (i = 0; pos < slen - 2 && i < ilen; pos += len, i++)
-		len = snprintf(&str[pos], slen - pos - 1, " %2.2X", ibuf[i]);
-
-	if (i < ilen)
-		return -1;
-
-	return 0;
-}
-
-/*	NOTE: This function is not thread safe.
-	Currently it's called only from sdio rx worker - no race there
-*/
-void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len)
-{
-	struct top_msg *msg;
-	static char logbuf[LOG_MSG_SIZE_MAX];
-
-	msg = (struct top_msg *)buf;
-
-	if (len < sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr)) {
-		LOG_ERROR(priv, FW_MSG, "Log message from TOP "
-			  "is too short %d (expected %zd)\n",
-			  len, sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr));
-		return;
-	}
-
-	if (!(iwmct_fw_logdefs[msg->u.log.log_hdr.logsource] &
-		BIT(msg->u.log.log_hdr.severity)) ||
-	    !(iwmct_logdefs[LOG_SRC_FW_MSG] & BIT(msg->u.log.log_hdr.severity)))
-		return;
-
-	switch (msg->hdr.category) {
-	case COMM_CATEGORY_TESTABILITY:
-		if (!(iwmct_logdefs[LOG_SRC_TST] &
-		      BIT(msg->u.log.log_hdr.severity)))
-			return;
-		if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
-				       le16_to_cpu(msg->hdr.length) +
-				       sizeof(msg->hdr), "<TST>"))
-			LOG_WARNING(priv, TST,
-				  "TOP TST message is too long, truncating...");
-		LOG_WARNING(priv, TST, "%s\n", logbuf);
-		break;
-	case COMM_CATEGORY_DEBUG:
-		if (msg->hdr.opcode == OP_DBG_ZSTR_MSG)
-			LOG_INFO(priv, FW_MSG, "%s %s", "<DBG>",
-				       ((u8 *)msg) + sizeof(msg->hdr)
-					+ sizeof(msg->u.log.log_hdr));
-		else {
-			if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
-					le16_to_cpu(msg->hdr.length)
-						+ sizeof(msg->hdr),
-					"<DBG>"))
-				LOG_WARNING(priv, FW_MSG,
-					"TOP DBG message is too long,"
-					"truncating...");
-			LOG_WARNING(priv, FW_MSG, "%s\n", logbuf);
-		}
-		break;
-	default:
-		break;
-	}
-}
-
-static int _log_get_filter_str(u8 *logdefs, int logdefsz, char *buf, int size)
-{
-	int i, pos, len;
-	for (i = 0, pos = 0; (pos < size-1) && (i < logdefsz); i++) {
-		len = snprintf(&buf[pos], size - pos - 1, "0x%02X%02X,",
-				i, logdefs[i]);
-		pos += len;
-	}
-	buf[pos-1] = '\n';
-	buf[pos] = '\0';
-
-	if (i < logdefsz)
-		return -1;
-	return 0;
-}
-
-int log_get_filter_str(char *buf, int size)
-{
-	return _log_get_filter_str(iwmct_logdefs, LOG_SRC_MAX, buf, size);
-}
-
-int log_get_fw_filter_str(char *buf, int size)
-{
-	return _log_get_filter_str(iwmct_fw_logdefs, FW_LOG_SRC_MAX, buf, size);
-}
-
-#define HEXADECIMAL_RADIX	16
-#define LOG_SRC_FORMAT		7 /* log level is in format of "0xXXXX," */
-
-ssize_t show_iwmct_log_level(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	char *str_buf;
-	int buf_size;
-	ssize_t ret;
-
-	buf_size = (LOG_SRC_FORMAT * LOG_SRC_MAX) + 1;
-	str_buf = kzalloc(buf_size, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %d bytes\n", buf_size);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	if (log_get_filter_str(str_buf, buf_size) < 0) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	ret = sprintf(buf, "%s", str_buf);
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
-ssize_t store_iwmct_log_level(struct device *d,
-			struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	char *token, *str_buf = NULL;
-	long val;
-	ssize_t ret = count;
-	u8 src, mask;
-
-	if (!count)
-		goto exit;
-
-	str_buf = kzalloc(count, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %zd bytes\n", count);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	memcpy(str_buf, buf, count);
-
-	while ((token = strsep(&str_buf, ",")) != NULL) {
-		while (isspace(*token))
-			++token;
-		if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
-			LOG_ERROR(priv, DEBUGFS,
-				  "failed to convert string to long %s\n",
-				  token);
-			ret = -EINVAL;
-			goto exit;
-		}
-
-		mask  = val & 0xFF;
-		src = (val & 0XFF00) >> 8;
-		iwmct_log_set_filter(src, mask);
-	}
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
-ssize_t show_iwmct_log_level_fw(struct device *d,
-			struct device_attribute *attr, char *buf)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	char *str_buf;
-	int buf_size;
-	ssize_t ret;
-
-	buf_size = (LOG_SRC_FORMAT * FW_LOG_SRC_MAX) + 2;
-
-	str_buf = kzalloc(buf_size, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %d bytes\n", buf_size);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	if (log_get_fw_filter_str(str_buf, buf_size) < 0) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	ret = sprintf(buf, "%s", str_buf);
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
-ssize_t store_iwmct_log_level_fw(struct device *d,
-			struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	struct top_msg cmd;
-	char *token, *str_buf = NULL;
-	ssize_t ret = count;
-	u16 cmdlen = 0;
-	int i;
-	long val;
-	u8 src, mask;
-
-	if (!count)
-		goto exit;
-
-	str_buf = kzalloc(count, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %zd bytes\n", count);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	memcpy(str_buf, buf, count);
-
-	cmd.hdr.type = COMM_TYPE_H2D;
-	cmd.hdr.category = COMM_CATEGORY_DEBUG;
-	cmd.hdr.opcode = CMD_DBG_LOG_LEVEL;
-
-	for (i = 0; ((token = strsep(&str_buf, ",")) != NULL) &&
-		     (i < FW_LOG_SRC_MAX); i++) {
-
-		while (isspace(*token))
-			++token;
-
-		if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
-			LOG_ERROR(priv, DEBUGFS,
-				  "failed to convert string to long %s\n",
-				  token);
-			ret = -EINVAL;
-			goto exit;
-		}
-
-		mask  = val & 0xFF; /* LSB */
-		src = (val & 0XFF00) >> 8; /* 2nd least significant byte. */
-		iwmct_log_set_fw_filter(src, mask);
-
-		cmd.u.logdefs[i].logsource = src;
-		cmd.u.logdefs[i].sevmask = mask;
-	}
-
-	cmd.hdr.length = cpu_to_le16(i * sizeof(cmd.u.logdefs[0]));
-	cmdlen = (i * sizeof(cmd.u.logdefs[0]) + sizeof(cmd.hdr));
-
-	ret = iwmct_send_hcmd(priv, (u8 *)&cmd, cmdlen);
-	if (ret) {
-		LOG_ERROR(priv, DEBUGFS,
-			  "Failed to send %d bytes of fwcmd, ret=%zd\n",
-			  cmdlen, ret);
-		goto exit;
-	} else
-		LOG_INFO(priv, DEBUGFS, "fwcmd sent (%d bytes)\n", cmdlen);
-
-	ret = count;
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
diff --git a/drivers/misc/iwmc3200top/log.h b/drivers/misc/iwmc3200top/log.h
deleted file mode 100644
index 4434bb16cea..00000000000
--- a/drivers/misc/iwmc3200top/log.h
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/log.h
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#ifndef __LOG_H__
-#define __LOG_H__
-
-
-/* log severity:
- * The log levels here match FW log levels
- * so values need to stay as is */
-#define LOG_SEV_CRITICAL		0
-#define LOG_SEV_ERROR			1
-#define LOG_SEV_WARNING			2
-#define LOG_SEV_INFO			3
-#define LOG_SEV_INFOEX			4
-
-/* Log levels not defined for FW */
-#define LOG_SEV_TRACE			5
-#define LOG_SEV_DUMP			6
-
-#define LOG_SEV_FW_FILTER_ALL		\
-	(BIT(LOG_SEV_CRITICAL)	|	\
-	 BIT(LOG_SEV_ERROR)	|	\
-	 BIT(LOG_SEV_WARNING)	| 	\
-	 BIT(LOG_SEV_INFO)	|	\
-	 BIT(LOG_SEV_INFOEX))
-
-#define LOG_SEV_FILTER_ALL		\
-	(BIT(LOG_SEV_CRITICAL)	|	\
-	 BIT(LOG_SEV_ERROR)	|	\
-	 BIT(LOG_SEV_WARNING)	| 	\
-	 BIT(LOG_SEV_INFO)	|	\
-	 BIT(LOG_SEV_INFOEX)	|	\
-	 BIT(LOG_SEV_TRACE)	|	\
-	 BIT(LOG_SEV_DUMP))
-
-/* log source */
-#define LOG_SRC_INIT			0
-#define LOG_SRC_DEBUGFS			1
-#define LOG_SRC_FW_DOWNLOAD		2
-#define LOG_SRC_FW_MSG			3
-#define LOG_SRC_TST			4
-#define LOG_SRC_IRQ			5
-
-#define	LOG_SRC_MAX			6
-#define	LOG_SRC_ALL			0xFF
-
-/**
- * Default intitialization runtime log level
- */
-#ifndef LOG_SEV_FILTER_RUNTIME
-#define LOG_SEV_FILTER_RUNTIME			\
-	(BIT(LOG_SEV_CRITICAL)	|		\
-	 BIT(LOG_SEV_ERROR)	|		\
-	 BIT(LOG_SEV_WARNING))
-#endif
-
-#ifndef FW_LOG_SEV_FILTER_RUNTIME
-#define FW_LOG_SEV_FILTER_RUNTIME	LOG_SEV_FILTER_ALL
-#endif
-
-#ifdef CONFIG_IWMC3200TOP_DEBUG
-/**
- * Log macros
- */
-
-#define priv2dev(priv) (&(priv->func)->dev)
-
-#define LOG_CRITICAL(priv, src, fmt, args...)				\
-do {									\
-	if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_CRITICAL))	\
-		dev_crit(priv2dev(priv), "%s %d: " fmt,			\
-			__func__, __LINE__, ##args);			\
-} while (0)
-
-#define LOG_ERROR(priv, src, fmt, args...)				\
-do {									\
-	if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_ERROR))	\
-		dev_err(priv2dev(priv), "%s %d: " fmt,			\
-			__func__, __LINE__, ##args);			\
-} while (0)
-
-#define LOG_WARNING(priv, src, fmt, args...)				\
-do {									\
-	if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_WARNING))	\
-		dev_warn(priv2dev(priv), "%s %d: " fmt,			\
-			 __func__, __LINE__, ##args);			\
-} while (0)
-
-#define LOG_INFO(priv, src, fmt, args...)				\
-do {									\
-	if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_INFO))		\
-		dev_info(priv2dev(priv), "%s %d: " fmt,			\
-			 __func__, __LINE__, ##args);			\
-} while (0)
-
-#define LOG_TRACE(priv, src, fmt, args...)				\
-do {									\
-	if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_TRACE))	\
-		dev_dbg(priv2dev(priv), "%s %d: " fmt,			\
-			 __func__, __LINE__, ##args);			\
-} while (0)
-
-#define LOG_HEXDUMP(src, ptr, len)					\
-do {									\
-	if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_DUMP))	\
-		print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_NONE,	\
-				16, 1, ptr, len, false);		\
-} while (0)
-
-void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len);
-
-extern u8 iwmct_logdefs[];
-
-int iwmct_log_set_filter(u8 src, u8 logmask);
-int iwmct_log_set_fw_filter(u8 src, u8 logmask);
-
-ssize_t show_iwmct_log_level(struct device *d,
-			struct device_attribute *attr, char *buf);
-ssize_t store_iwmct_log_level(struct device *d,
-			struct device_attribute *attr,
-			const char *buf, size_t count);
-ssize_t show_iwmct_log_level_fw(struct device *d,
-			struct device_attribute *attr, char *buf);
-ssize_t store_iwmct_log_level_fw(struct device *d,
-			struct device_attribute *attr,
-			const char *buf, size_t count);
-
-#else
-
-#define LOG_CRITICAL(priv, src, fmt, args...)
-#define LOG_ERROR(priv, src, fmt, args...)
-#define LOG_WARNING(priv, src, fmt, args...)
-#define LOG_INFO(priv, src, fmt, args...)
-#define LOG_TRACE(priv, src, fmt, args...)
-#define LOG_HEXDUMP(src, ptr, len)
-
-static inline void iwmct_log_top_message(struct iwmct_priv *priv,
-					 u8 *buf, int len) {}
-static inline int iwmct_log_set_filter(u8 src, u8 logmask) { return 0; }
-static inline int iwmct_log_set_fw_filter(u8 src, u8 logmask) { return 0; }
-
-#endif /* CONFIG_IWMC3200TOP_DEBUG */
-
-int log_get_filter_str(char *buf, int size);
-int log_get_fw_filter_str(char *buf, int size);
-
-#endif /* __LOG_H__ */
diff --git a/drivers/misc/iwmc3200top/main.c b/drivers/misc/iwmc3200top/main.c
deleted file mode 100644
index 701eb600b12..00000000000
--- a/drivers/misc/iwmc3200top/main.c
+++ /dev/null
@@ -1,662 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/main.c
- *
- * Copyright (C) 2009 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/debugfs.h>
-#include <linux/mmc/sdio_ids.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/sdio.h>
-
-#include "iwmc3200top.h"
-#include "log.h"
-#include "fw-msg.h"
-#include "debugfs.h"
-
-
-#define DRIVER_DESCRIPTION "Intel(R) IWMC 3200 Top Driver"
-#define DRIVER_COPYRIGHT "Copyright (c) 2008 Intel Corporation."
-
-#define DRIVER_VERSION  "0.1.62"
-
-MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR(DRIVER_COPYRIGHT);
-MODULE_FIRMWARE(FW_NAME(FW_API_VER));
-
-
-static inline int __iwmct_tx(struct iwmct_priv *priv, void *src, int count)
-{
-	return sdio_memcpy_toio(priv->func, IWMC_SDIO_DATA_ADDR, src, count);
-
-}
-int iwmct_tx(struct iwmct_priv *priv, void *src, int count)
-{
-	int ret;
-	sdio_claim_host(priv->func);
-	ret =  __iwmct_tx(priv, src, count);
-	sdio_release_host(priv->func);
-	return ret;
-}
-/*
- * This workers main task is to wait for OP_OPR_ALIVE
- * from TOP FW until ALIVE_MSG_TIMOUT timeout is elapsed.
- * When OP_OPR_ALIVE received it will issue
- * a call to "bus_rescan_devices".
- */
-static void iwmct_rescan_worker(struct work_struct *ws)
-{
-	struct iwmct_priv *priv;
-	int ret;
-
-	priv = container_of(ws, struct iwmct_priv, bus_rescan_worker);
-
-	LOG_INFO(priv, FW_MSG, "Calling bus_rescan\n");
-
-	ret = bus_rescan_devices(priv->func->dev.bus);
-	if (ret < 0)
-		LOG_INFO(priv, INIT, "bus_rescan_devices FAILED!!!\n");
-}
-
-static void op_top_message(struct iwmct_priv *priv, struct top_msg *msg)
-{
-	switch (msg->hdr.opcode) {
-	case OP_OPR_ALIVE:
-		LOG_INFO(priv, FW_MSG, "Got ALIVE from device, wake rescan\n");
-		schedule_work(&priv->bus_rescan_worker);
-		break;
-	default:
-		LOG_INFO(priv, FW_MSG, "Received msg opcode 0x%X\n",
-			msg->hdr.opcode);
-		break;
-	}
-}
-
-
-static void handle_top_message(struct iwmct_priv *priv, u8 *buf, int len)
-{
-	struct top_msg *msg;
-
-	msg = (struct top_msg *)buf;
-
-	if (msg->hdr.type != COMM_TYPE_D2H) {
-		LOG_ERROR(priv, FW_MSG,
-			"Message from TOP with invalid message type 0x%X\n",
-			msg->hdr.type);
-		return;
-	}
-
-	if (len < sizeof(msg->hdr)) {
-		LOG_ERROR(priv, FW_MSG,
-			"Message from TOP is too short for message header "
-			"received %d bytes, expected at least %zd bytes\n",
-			len, sizeof(msg->hdr));
-		return;
-	}
-
-	if (len < le16_to_cpu(msg->hdr.length) + sizeof(msg->hdr)) {
-		LOG_ERROR(priv, FW_MSG,
-			"Message length (%d bytes) is shorter than "
-			"in header (%d bytes)\n",
-			len, le16_to_cpu(msg->hdr.length));
-		return;
-	}
-
-	switch (msg->hdr.category) {
-	case COMM_CATEGORY_OPERATIONAL:
-		op_top_message(priv, (struct top_msg *)buf);
-		break;
-
-	case COMM_CATEGORY_DEBUG:
-	case COMM_CATEGORY_TESTABILITY:
-	case COMM_CATEGORY_DIAGNOSTICS:
-		iwmct_log_top_message(priv, buf, len);
-		break;
-
-	default:
-		LOG_ERROR(priv, FW_MSG,
-			"Message from TOP with unknown category 0x%X\n",
-			msg->hdr.category);
-		break;
-	}
-}
-
-int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len)
-{
-	int ret;
-	u8 *buf;
-
-	LOG_TRACE(priv, FW_MSG, "Sending hcmd:\n");
-
-	/* add padding to 256 for IWMC */
-	((struct top_msg *)cmd)->hdr.flags |= CMD_FLAG_PADDING_256;
-
-	LOG_HEXDUMP(FW_MSG, cmd, len);
-
-	if (len > FW_HCMD_BLOCK_SIZE) {
-		LOG_ERROR(priv, FW_MSG, "size %d exceeded hcmd max size %d\n",
-			  len, FW_HCMD_BLOCK_SIZE);
-		return -1;
-	}
-
-	buf = kzalloc(FW_HCMD_BLOCK_SIZE, GFP_KERNEL);
-	if (!buf) {
-		LOG_ERROR(priv, FW_MSG, "kzalloc error, buf size %d\n",
-			  FW_HCMD_BLOCK_SIZE);
-		return -1;
-	}
-
-	memcpy(buf, cmd, len);
-	ret = iwmct_tx(priv, buf, FW_HCMD_BLOCK_SIZE);
-
-	kfree(buf);
-	return ret;
-}
-
-
-static void iwmct_irq_read_worker(struct work_struct *ws)
-{
-	struct iwmct_priv *priv;
-	struct iwmct_work_struct *read_req;
-	__le32 *buf = NULL;
-	int ret;
-	int iosize;
-	u32 barker;
-	bool is_barker;
-
-	priv = container_of(ws, struct iwmct_priv, isr_worker);
-
-	LOG_TRACE(priv, IRQ, "enter iwmct_irq_read_worker %p\n", ws);
-
-	/* --------------------- Handshake with device -------------------- */
-	sdio_claim_host(priv->func);
-
-	/* all list manipulations have to be protected by
-	 * sdio_claim_host/sdio_release_host */
-	if (list_empty(&priv->read_req_list)) {
-		LOG_ERROR(priv, IRQ, "read_req_list empty in read worker\n");
-		goto exit_release;
-	}
-
-	read_req = list_entry(priv->read_req_list.next,
-			      struct iwmct_work_struct, list);
-
-	list_del(&read_req->list);
-	iosize = read_req->iosize;
-	kfree(read_req);
-
-	buf = kzalloc(iosize, GFP_KERNEL);
-	if (!buf) {
-		LOG_ERROR(priv, IRQ, "kzalloc error, buf size %d\n", iosize);
-		goto exit_release;
-	}
-
-	LOG_INFO(priv, IRQ, "iosize=%d, buf=%p, func=%d\n",
-				iosize, buf, priv->func->num);
-
-	/* read from device */
-	ret = sdio_memcpy_fromio(priv->func, buf, IWMC_SDIO_DATA_ADDR, iosize);
-	if (ret) {
-		LOG_ERROR(priv, IRQ, "error %d reading buffer\n", ret);
-		goto exit_release;
-	}
-
-	LOG_HEXDUMP(IRQ, (u8 *)buf, iosize);
-
-	barker = le32_to_cpu(buf[0]);
-
-	/* Verify whether it's a barker and if not - treat as regular Rx */
-	if (barker == IWMC_BARKER_ACK ||
-	    (barker & BARKER_DNLOAD_BARKER_MSK) == IWMC_BARKER_REBOOT) {
-
-		/* Valid Barker is equal on first 4 dwords */
-		is_barker = (buf[1] == buf[0]) &&
-			    (buf[2] == buf[0]) &&
-			    (buf[3] == buf[0]);
-
-		if (!is_barker) {
-			LOG_WARNING(priv, IRQ,
-				"Potentially inconsistent barker "
-				"%08X_%08X_%08X_%08X\n",
-				le32_to_cpu(buf[0]), le32_to_cpu(buf[1]),
-				le32_to_cpu(buf[2]), le32_to_cpu(buf[3]));
-		}
-	} else {
-		is_barker = false;
-	}
-
-	/* Handle Top CommHub message */
-	if (!is_barker) {
-		sdio_release_host(priv->func);
-		handle_top_message(priv, (u8 *)buf, iosize);
-		goto exit;
-	} else if (barker == IWMC_BARKER_ACK) { /* Handle barkers */
-		if (atomic_read(&priv->dev_sync) == 0) {
-			LOG_ERROR(priv, IRQ,
-				  "ACK barker arrived out-of-sync\n");
-			goto exit_release;
-		}
-
-		/* Continuing to FW download (after Sync is completed)*/
-		atomic_set(&priv->dev_sync, 0);
-		LOG_INFO(priv, IRQ, "ACK barker arrived "
-				"- starting FW download\n");
-	} else { /* REBOOT barker */
-		LOG_INFO(priv, IRQ, "Received reboot barker: %x\n", barker);
-		priv->barker = barker;
-
-		if (barker & BARKER_DNLOAD_SYNC_MSK) {
-			/* Send the same barker back */
-			ret = __iwmct_tx(priv, buf, iosize);
-			if (ret) {
-				LOG_ERROR(priv, IRQ,
-					 "error %d echoing barker\n", ret);
-				goto exit_release;
-			}
-			LOG_INFO(priv, IRQ, "Echoing barker to device\n");
-			atomic_set(&priv->dev_sync, 1);
-			goto exit_release;
-		}
-
-		/* Continuing to FW download (without Sync) */
-		LOG_INFO(priv, IRQ, "No sync requested "
-				    "- starting FW download\n");
-	}
-
-	sdio_release_host(priv->func);
-
-	if (priv->dbg.fw_download)
-		iwmct_fw_load(priv);
-	else
-		LOG_ERROR(priv, IRQ, "FW download not allowed\n");
-
-	goto exit;
-
-exit_release:
-	sdio_release_host(priv->func);
-exit:
-	kfree(buf);
-	LOG_TRACE(priv, IRQ, "exit iwmct_irq_read_worker\n");
-}
-
-static void iwmct_irq(struct sdio_func *func)
-{
-	struct iwmct_priv *priv;
-	int val, ret;
-	int iosize;
-	int addr = IWMC_SDIO_INTR_GET_SIZE_ADDR;
-	struct iwmct_work_struct *read_req;
-
-	priv = sdio_get_drvdata(func);
-
-	LOG_TRACE(priv, IRQ, "enter iwmct_irq\n");
-
-	/* read the function's status register */
-	val = sdio_readb(func, IWMC_SDIO_INTR_STATUS_ADDR, &ret);
-
-	LOG_TRACE(priv, IRQ, "iir value = %d, ret=%d\n", val, ret);
-
-	if (!val) {
-		LOG_ERROR(priv, IRQ, "iir = 0, exiting ISR\n");
-		goto exit_clear_intr;
-	}
-
-
-	/*
-	 * read 2 bytes of the transaction size
-	 * IMPORTANT: sdio transaction size has to be read before clearing
-	 * sdio interrupt!!!
-	 */
-	val = sdio_readb(priv->func, addr++, &ret);
-	iosize = val;
-	val = sdio_readb(priv->func, addr++, &ret);
-	iosize += val << 8;
-
-	LOG_INFO(priv, IRQ, "READ size %d\n", iosize);
-
-	if (iosize == 0) {
-		LOG_ERROR(priv, IRQ, "READ size %d, exiting ISR\n", iosize);
-		goto exit_clear_intr;
-	}
-
-	/* allocate a work structure to pass iosize to the worker */
-	read_req = kzalloc(sizeof(struct iwmct_work_struct), GFP_KERNEL);
-	if (!read_req) {
-		LOG_ERROR(priv, IRQ, "failed to allocate read_req, exit ISR\n");
-		goto exit_clear_intr;
-	}
-
-	INIT_LIST_HEAD(&read_req->list);
-	read_req->iosize = iosize;
-
-	list_add_tail(&priv->read_req_list, &read_req->list);
-
-	/* clear the function's interrupt request bit (write 1 to clear) */
-	sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
-
-	schedule_work(&priv->isr_worker);
-
-	LOG_TRACE(priv, IRQ, "exit iwmct_irq\n");
-
-	return;
-
-exit_clear_intr:
-	/* clear the function's interrupt request bit (write 1 to clear) */
-	sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
-}
-
-
-static int blocks;
-module_param(blocks, int, 0604);
-MODULE_PARM_DESC(blocks, "max_blocks_to_send");
-
-static bool dump;
-module_param(dump, bool, 0604);
-MODULE_PARM_DESC(dump, "dump_hex_content");
-
-static bool jump = 1;
-module_param(jump, bool, 0604);
-
-static bool direct = 1;
-module_param(direct, bool, 0604);
-
-static bool checksum = 1;
-module_param(checksum, bool, 0604);
-
-static bool fw_download = 1;
-module_param(fw_download, bool, 0604);
-
-static int block_size = IWMC_SDIO_BLK_SIZE;
-module_param(block_size, int, 0404);
-
-static int download_trans_blks = IWMC_DEFAULT_TR_BLK;
-module_param(download_trans_blks, int, 0604);
-
-static bool rubbish_barker;
-module_param(rubbish_barker, bool, 0604);
-
-#ifdef CONFIG_IWMC3200TOP_DEBUG
-static int log_level[LOG_SRC_MAX];
-static unsigned int log_level_argc;
-module_param_array(log_level, int, &log_level_argc, 0604);
-MODULE_PARM_DESC(log_level, "log_level");
-
-static int log_level_fw[FW_LOG_SRC_MAX];
-static unsigned int log_level_fw_argc;
-module_param_array(log_level_fw, int, &log_level_fw_argc, 0604);
-MODULE_PARM_DESC(log_level_fw, "log_level_fw");
-#endif
-
-void iwmct_dbg_init_params(struct iwmct_priv *priv)
-{
-#ifdef CONFIG_IWMC3200TOP_DEBUG
-	int i;
-
-	for (i = 0; i < log_level_argc; i++) {
-		dev_notice(&priv->func->dev, "log_level[%d]=0x%X\n",
-						i, log_level[i]);
-		iwmct_log_set_filter((log_level[i] >> 8) & 0xFF,
-			       log_level[i] & 0xFF);
-	}
-	for (i = 0; i < log_level_fw_argc; i++) {
-		dev_notice(&priv->func->dev, "log_level_fw[%d]=0x%X\n",
-						i, log_level_fw[i]);
-		iwmct_log_set_fw_filter((log_level_fw[i] >> 8) & 0xFF,
-				  log_level_fw[i] & 0xFF);
-	}
-#endif
-
-	priv->dbg.blocks = blocks;
-	LOG_INFO(priv, INIT, "blocks=%d\n", blocks);
-	priv->dbg.dump = (bool)dump;
-	LOG_INFO(priv, INIT, "dump=%d\n", dump);
-	priv->dbg.jump = (bool)jump;
-	LOG_INFO(priv, INIT, "jump=%d\n", jump);
-	priv->dbg.direct = (bool)direct;
-	LOG_INFO(priv, INIT, "direct=%d\n", direct);
-	priv->dbg.checksum = (bool)checksum;
-	LOG_INFO(priv, INIT, "checksum=%d\n", checksum);
-	priv->dbg.fw_download = (bool)fw_download;
-	LOG_INFO(priv, INIT, "fw_download=%d\n", fw_download);
-	priv->dbg.block_size = block_size;
-	LOG_INFO(priv, INIT, "block_size=%d\n", block_size);
-	priv->dbg.download_trans_blks = download_trans_blks;
-	LOG_INFO(priv, INIT, "download_trans_blks=%d\n", download_trans_blks);
-}
-
-/*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-static ssize_t show_iwmct_fw_version(struct device *d,
-				  struct device_attribute *attr, char *buf)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	return sprintf(buf, "%s\n", priv->dbg.label_fw);
-}
-static DEVICE_ATTR(cc_label_fw, S_IRUGO, show_iwmct_fw_version, NULL);
-
-#ifdef CONFIG_IWMC3200TOP_DEBUG
-static DEVICE_ATTR(log_level, S_IWUSR | S_IRUGO,
-		   show_iwmct_log_level, store_iwmct_log_level);
-static DEVICE_ATTR(log_level_fw, S_IWUSR | S_IRUGO,
-		   show_iwmct_log_level_fw, store_iwmct_log_level_fw);
-#endif
-
-static struct attribute *iwmct_sysfs_entries[] = {
-	&dev_attr_cc_label_fw.attr,
-#ifdef CONFIG_IWMC3200TOP_DEBUG
-	&dev_attr_log_level.attr,
-	&dev_attr_log_level_fw.attr,
-#endif
-	NULL
-};
-
-static struct attribute_group iwmct_attribute_group = {
-	.name = NULL,		/* put in device directory */
-	.attrs = iwmct_sysfs_entries,
-};
-
-
-static int iwmct_probe(struct sdio_func *func,
-			   const struct sdio_device_id *id)
-{
-	struct iwmct_priv *priv;
-	int ret;
-	int val = 1;
-	int addr = IWMC_SDIO_INTR_ENABLE_ADDR;
-
-	dev_dbg(&func->dev, "enter iwmct_probe\n");
-
-	dev_dbg(&func->dev, "IRQ polling period id %u msecs, HZ is %d\n",
-		jiffies_to_msecs(2147483647), HZ);
-
-	priv = kzalloc(sizeof(struct iwmct_priv), GFP_KERNEL);
-	if (!priv) {
-		dev_err(&func->dev, "kzalloc error\n");
-		return -ENOMEM;
-	}
-	priv->func = func;
-	sdio_set_drvdata(func, priv);
-
-	INIT_WORK(&priv->bus_rescan_worker, iwmct_rescan_worker);
-	INIT_WORK(&priv->isr_worker, iwmct_irq_read_worker);
-
-	init_waitqueue_head(&priv->wait_q);
-
-	sdio_claim_host(func);
-	/* FIXME: Remove after it is fixed in the Boot ROM upgrade */
-	func->enable_timeout = 10;
-
-	/* In our HW, setting the block size also wakes up the boot rom. */
-	ret = sdio_set_block_size(func, priv->dbg.block_size);
-	if (ret) {
-		LOG_ERROR(priv, INIT,
-			"sdio_set_block_size() failure: %d\n", ret);
-		goto error_sdio_enable;
-	}
-
-	ret = sdio_enable_func(func);
-	if (ret) {
-		LOG_ERROR(priv, INIT, "sdio_enable_func() failure: %d\n", ret);
-		goto error_sdio_enable;
-	}
-
-	/* init reset and dev_sync states */
-	atomic_set(&priv->reset, 0);
-	atomic_set(&priv->dev_sync, 0);
-
-	/* init read req queue */
-	INIT_LIST_HEAD(&priv->read_req_list);
-
-	/* process configurable parameters */
-	iwmct_dbg_init_params(priv);
-	ret = sysfs_create_group(&func->dev.kobj, &iwmct_attribute_group);
-	if (ret) {
-		LOG_ERROR(priv, INIT, "Failed to register attributes and "
-			 "initialize module_params\n");
-		goto error_dev_attrs;
-	}
-
-	iwmct_dbgfs_register(priv, DRV_NAME);
-
-	if (!priv->dbg.direct && priv->dbg.download_trans_blks > 8) {
-		LOG_INFO(priv, INIT,
-			 "Reducing transaction to 8 blocks = 2K (from %d)\n",
-			 priv->dbg.download_trans_blks);
-		priv->dbg.download_trans_blks = 8;
-	}
-	priv->trans_len = priv->dbg.download_trans_blks * priv->dbg.block_size;
-	LOG_INFO(priv, INIT, "Transaction length = %d\n", priv->trans_len);
-
-	ret = sdio_claim_irq(func, iwmct_irq);
-	if (ret) {
-		LOG_ERROR(priv, INIT, "sdio_claim_irq() failure: %d\n", ret);
-		goto error_claim_irq;
-	}
-
-
-	/* Enable function's interrupt */
-	sdio_writeb(priv->func, val, addr, &ret);
-	if (ret) {
-		LOG_ERROR(priv, INIT, "Failure writing to "
-			  "Interrupt Enable Register (%d): %d\n", addr, ret);
-		goto error_enable_int;
-	}
-
-	sdio_release_host(func);
-
-	LOG_INFO(priv, INIT, "exit iwmct_probe\n");
-
-	return ret;
-
-error_enable_int:
-	sdio_release_irq(func);
-error_claim_irq:
-	sdio_disable_func(func);
-error_dev_attrs:
-	iwmct_dbgfs_unregister(priv->dbgfs);
-	sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group);
-error_sdio_enable:
-	sdio_release_host(func);
-	return ret;
-}
-
-static void iwmct_remove(struct sdio_func *func)
-{
-	struct iwmct_work_struct *read_req;
-	struct iwmct_priv *priv = sdio_get_drvdata(func);
-
-	LOG_INFO(priv, INIT, "enter\n");
-
-	sdio_claim_host(func);
-	sdio_release_irq(func);
-	sdio_release_host(func);
-
-	/* Make sure works are finished */
-	flush_work_sync(&priv->bus_rescan_worker);
-	flush_work_sync(&priv->isr_worker);
-
-	sdio_claim_host(func);
-	sdio_disable_func(func);
-	sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group);
-	iwmct_dbgfs_unregister(priv->dbgfs);
-	sdio_release_host(func);
-
-	/* free read requests */
-	while (!list_empty(&priv->read_req_list)) {
-		read_req = list_entry(priv->read_req_list.next,
-			struct iwmct_work_struct, list);
-
-		list_del(&read_req->list);
-		kfree(read_req);
-	}
-
-	kfree(priv);
-}
-
-
-static const struct sdio_device_id iwmct_ids[] = {
-	/* Intel Wireless MultiCom 3200 Top Driver */
-	{ SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, 0x1404)},
-	{ },	/* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(sdio, iwmct_ids);
-
-static struct sdio_driver iwmct_driver = {
-	.probe		= iwmct_probe,
-	.remove		= iwmct_remove,
-	.name		= DRV_NAME,
-	.id_table	= iwmct_ids,
-};
-
-static int __init iwmct_init(void)
-{
-	int rc;
-
-	/* Default log filter settings */
-	iwmct_log_set_filter(LOG_SRC_ALL, LOG_SEV_FILTER_RUNTIME);
-	iwmct_log_set_filter(LOG_SRC_FW_MSG, LOG_SEV_FW_FILTER_ALL);
-	iwmct_log_set_fw_filter(LOG_SRC_ALL, FW_LOG_SEV_FILTER_RUNTIME);
-
-	rc = sdio_register_driver(&iwmct_driver);
-
-	return rc;
-}
-
-static void __exit iwmct_exit(void)
-{
-	sdio_unregister_driver(&iwmct_driver);
-}
-
-module_init(iwmct_init);
-module_exit(iwmct_exit);
-
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 28adefe70f9..08aad69c8da 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -477,6 +477,8 @@ static ssize_t lkdtm_debugfs_read(struct file *f, char __user *user_buf,
 	int i, n, out;
 
 	buf = (char *)__get_free_page(GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
 
 	n = snprintf(buf, PAGE_SIZE, "Available crash types:\n");
 	for (i = 0; i < ARRAY_SIZE(cp_type); i++)
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index a7d0bb0880e..e77f86e69fb 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -162,6 +162,9 @@ int mei_hw_init(struct mei_device *dev)
 	if ((dev->host_hw_state & H_IS) == H_IS)
 		mei_reg_write(dev, H_CSR, dev->host_hw_state);
 
+	/* Doesn't change in runtime */
+	dev->hbuf_depth = (dev->host_hw_state & H_CBD) >> 24;
+
 	dev->recvd_msg = false;
 	dev_dbg(&dev->pdev->dev, "reset in start the mei device.\n");
 
@@ -303,7 +306,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 				dev->iamthif_cl.host_client_id);
 
 		mei_reset_iamthif_params(dev);
-		dev->wd_due_counter = 0;
 		dev->extra_write_index = 0;
 	}
 
diff --git a/drivers/misc/mei/interface.c b/drivers/misc/mei/interface.c
index 428d21e3641..509c3957ff4 100644
--- a/drivers/misc/mei/interface.c
+++ b/drivers/misc/mei/interface.c
@@ -58,16 +58,18 @@ void mei_disable_interrupts(struct mei_device *dev)
 }
 
 /**
- * _host_get_filled_slots - gets number of device filled buffer slots
+ * mei_hbuf_filled_slots - gets number of device filled buffer slots
  *
  * @device: the device structure
  *
  * returns number of filled slots
  */
-static unsigned char _host_get_filled_slots(const struct mei_device *dev)
+static unsigned char mei_hbuf_filled_slots(struct mei_device *dev)
 {
 	char read_ptr, write_ptr;
 
+	dev->host_hw_state = mei_hcsr_read(dev);
+
 	read_ptr = (char) ((dev->host_hw_state & H_CBRP) >> 8);
 	write_ptr = (char) ((dev->host_hw_state & H_CBWP) >> 16);
 
@@ -75,43 +77,33 @@ static unsigned char _host_get_filled_slots(const struct mei_device *dev)
 }
 
 /**
- * mei_host_buffer_is_empty - checks if host buffer is empty.
+ * mei_hbuf_is_empty - checks if host buffer is empty.
  *
  * @dev: the device structure
  *
- * returns 1 if empty, 0 - otherwise.
+ * returns true if empty, false - otherwise.
  */
-int mei_host_buffer_is_empty(struct mei_device *dev)
+bool mei_hbuf_is_empty(struct mei_device *dev)
 {
-	unsigned char filled_slots;
-
-	dev->host_hw_state = mei_hcsr_read(dev);
-	filled_slots = _host_get_filled_slots(dev);
-
-	if (filled_slots == 0)
-		return 1;
-
-	return 0;
+	return mei_hbuf_filled_slots(dev) == 0;
 }
 
 /**
- * mei_count_empty_write_slots - counts write empty slots.
+ * mei_hbuf_empty_slots - counts write empty slots.
  *
  * @dev: the device structure
  *
  * returns -1(ESLOTS_OVERFLOW) if overflow, otherwise empty slots count
  */
-int mei_count_empty_write_slots(struct mei_device *dev)
+int mei_hbuf_empty_slots(struct mei_device *dev)
 {
-	unsigned char buffer_depth, filled_slots, empty_slots;
+	unsigned char filled_slots, empty_slots;
 
-	dev->host_hw_state = mei_hcsr_read(dev);
-	buffer_depth = (unsigned char) ((dev->host_hw_state & H_CBD) >> 24);
-	filled_slots = _host_get_filled_slots(dev);
-	empty_slots = buffer_depth - filled_slots;
+	filled_slots = mei_hbuf_filled_slots(dev);
+	empty_slots = dev->hbuf_depth - filled_slots;
 
 	/* check for overflow */
-	if (filled_slots > buffer_depth)
+	if (filled_slots > dev->hbuf_depth)
 		return -EOVERFLOW;
 
 	return empty_slots;
@@ -127,52 +119,39 @@ int mei_count_empty_write_slots(struct mei_device *dev)
  *
  * This function returns -EIO if write has failed
  */
-int mei_write_message(struct mei_device *dev,
-		      struct mei_msg_hdr *header,
-		      unsigned char *write_buffer,
-		      unsigned long write_length)
+int mei_write_message(struct mei_device *dev, struct mei_msg_hdr *header,
+		      unsigned char *buf, unsigned long length)
 {
-	u32 temp_msg = 0;
-	unsigned long bytes_written = 0;
-	unsigned char buffer_depth, filled_slots, empty_slots;
-	unsigned long dw_to_write;
-
-	dev->host_hw_state = mei_hcsr_read(dev);
+	unsigned long rem, dw_cnt;
+	u32 *reg_buf = (u32 *)buf;
+	int i;
+	int empty_slots;
 
-	dev_dbg(&dev->pdev->dev,
-			"host_hw_state = 0x%08x.\n",
-			dev->host_hw_state);
 
 	dev_dbg(&dev->pdev->dev,
 			"mei_write_message header=%08x.\n",
 			*((u32 *) header));
 
-	buffer_depth = (unsigned char) ((dev->host_hw_state & H_CBD) >> 24);
-	filled_slots = _host_get_filled_slots(dev);
-	empty_slots = buffer_depth - filled_slots;
-	dev_dbg(&dev->pdev->dev,
-			"filled = %hu, empty = %hu.\n",
-			filled_slots, empty_slots);
-
-	dw_to_write = ((write_length + 3) / 4);
+	empty_slots = mei_hbuf_empty_slots(dev);
+	dev_dbg(&dev->pdev->dev, "empty slots = %hu.\n", empty_slots);
 
-	if (dw_to_write > empty_slots)
+	dw_cnt = mei_data2slots(length);
+	if (empty_slots < 0 || dw_cnt > empty_slots)
 		return -EIO;
 
 	mei_reg_write(dev, H_CB_WW, *((u32 *) header));
 
-	while (write_length >= 4) {
-		mei_reg_write(dev, H_CB_WW,
-				*(u32 *) (write_buffer + bytes_written));
-		bytes_written += 4;
-		write_length -= 4;
-	}
+	for (i = 0; i < length / 4; i++)
+		mei_reg_write(dev, H_CB_WW, reg_buf[i]);
 
-	if (write_length > 0) {
-		memcpy(&temp_msg, &write_buffer[bytes_written], write_length);
-		mei_reg_write(dev, H_CB_WW, temp_msg);
+	rem = length & 0x3;
+	if (rem > 0) {
+		u32 reg = 0;
+		memcpy(&reg, &buf[length - rem], rem);
+		mei_reg_write(dev, H_CB_WW, reg);
 	}
 
+	dev->host_hw_state = mei_hcsr_read(dev);
 	dev->host_hw_state |= H_IG;
 	mei_hcsr_set(dev);
 	dev->me_hw_state = mei_mecsr_read(dev);
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index ddff5d16616..fb5c7db4723 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -41,14 +41,28 @@ int mei_write_message(struct mei_device *dev,
 			     unsigned char *write_buffer,
 			     unsigned long write_length);
 
-int mei_host_buffer_is_empty(struct mei_device *dev);
+bool mei_hbuf_is_empty(struct mei_device *dev);
+
+int mei_hbuf_empty_slots(struct mei_device *dev);
+
+static inline size_t mei_hbuf_max_data(const struct mei_device *dev)
+{
+	return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
+}
+
+/* get slots (dwords) from a message length + header (bytes) */
+static inline unsigned char mei_data2slots(size_t length)
+{
+	return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
+}
 
 int mei_count_full_read_slots(struct mei_device *dev);
 
-int mei_count_empty_write_slots(struct mei_device *dev);
 
 int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl);
 
+
+
 int mei_wd_send(struct mei_device *dev);
 int mei_wd_stop(struct mei_device *dev, bool preserve);
 int mei_wd_host_init(struct mei_device *dev);
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 23f5463d4ca..c6ffbbe5a6c 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -267,8 +267,7 @@ static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots)
 			+ sizeof(struct hbm_flow_control))) {
 		return -EMSGSIZE;
 	}
-	*slots -= (sizeof(struct mei_msg_hdr) +
-				sizeof(struct hbm_flow_control) + 3) / 4;
+	*slots -= mei_data2slots(sizeof(struct hbm_flow_control));
 	if (mei_send_flow_control(dev, &dev->iamthif_cl)) {
 		dev_dbg(&dev->pdev->dev, "iamthif flow control failed\n");
 		return -EIO;
@@ -280,7 +279,7 @@ static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots)
 	dev->iamthif_msg_buf_index = 0;
 	dev->iamthif_msg_buf_size = 0;
 	dev->iamthif_stall_timer = IAMTHIF_STALL_TIMER;
-	dev->mei_host_buffer_is_empty = mei_host_buffer_is_empty(dev);
+	dev->mei_host_buffer_is_empty = mei_hbuf_is_empty(dev);
 	return 0;
 }
 
@@ -300,28 +299,25 @@ static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots,
 				struct mei_cl *cl,
 				struct mei_io_list *cmpl_list)
 {
-	if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
-			sizeof(struct hbm_client_disconnect_request))) {
-		*slots -= (sizeof(struct mei_msg_hdr) +
-			sizeof(struct hbm_client_disconnect_request) + 3) / 4;
+	if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
+			sizeof(struct hbm_client_disconnect_request)))
+		return -EBADMSG;
 
-		if (mei_disconnect(dev, cl)) {
-			cl->status = 0;
-			cb_pos->information = 0;
-			list_move_tail(&cb_pos->cb_list,
-					&cmpl_list->mei_cb.cb_list);
-			return -EMSGSIZE;
-		} else {
-			cl->state = MEI_FILE_DISCONNECTING;
-			cl->status = 0;
-			cb_pos->information = 0;
-			list_move_tail(&cb_pos->cb_list,
-					&dev->ctrl_rd_list.mei_cb.cb_list);
-			cl->timer_count = MEI_CONNECT_TIMEOUT;
-		}
+	*slots -= mei_data2slots(sizeof(struct hbm_client_disconnect_request));
+
+	if (mei_disconnect(dev, cl)) {
+		cl->status = 0;
+		cb_pos->information = 0;
+		list_move_tail(&cb_pos->cb_list,
+				&cmpl_list->mei_cb.cb_list);
+		return -EMSGSIZE;
 	} else {
-		/* return the cancel routine */
-		return -EBADMSG;
+		cl->state = MEI_FILE_DISCONNECTING;
+		cl->status = 0;
+		cb_pos->information = 0;
+		list_move_tail(&cb_pos->cb_list,
+				&dev->ctrl_rd_list.mei_cb.cb_list);
+		cl->timer_count = MEI_CONNECT_TIMEOUT;
 	}
 
 	return 0;
@@ -575,10 +571,9 @@ static void mei_client_disconnect_request(struct mei_device *dev,
 					disconnect_req->me_addr);
 			cl_pos->state = MEI_FILE_DISCONNECTED;
 			cl_pos->timer_count = 0;
-			if (cl_pos == &dev->wd_cl) {
-				dev->wd_due_counter = 0;
+			if (cl_pos == &dev->wd_cl)
 				dev->wd_pending = false;
-			} else if (cl_pos == &dev->iamthif_cl)
+			else if (cl_pos == &dev->iamthif_cl)
 				dev->iamthif_timer = 0;
 
 			/* prepare disconnect response */
@@ -842,8 +837,8 @@ static int _mei_irq_thread_read(struct mei_device *dev,	s32 *slots,
 		return -EBADMSG;
 	}
 
-	*slots -= (sizeof(struct mei_msg_hdr) +
-			sizeof(struct hbm_flow_control) + 3) / 4;
+	*slots -= mei_data2slots(sizeof(struct hbm_flow_control));
+
 	if (mei_send_flow_control(dev, cl)) {
 		cl->status = -ENODEV;
 		cb_pos->information = 0;
@@ -872,27 +867,25 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
 			struct mei_cl *cl,
 			struct mei_io_list *cmpl_list)
 {
-	if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
+	if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
 			sizeof(struct hbm_client_connect_request))) {
-		cl->state = MEI_FILE_CONNECTING;
-		*slots -= (sizeof(struct mei_msg_hdr) +
-			sizeof(struct hbm_client_connect_request) + 3) / 4;
-		if (mei_connect(dev, cl)) {
-			cl->status = -ENODEV;
-			cb_pos->information = 0;
-			list_del(&cb_pos->cb_list);
-			return -ENODEV;
-		} else {
-			list_move_tail(&cb_pos->cb_list,
-				&dev->ctrl_rd_list.mei_cb.cb_list);
-			cl->timer_count = MEI_CONNECT_TIMEOUT;
-		}
-	} else {
 		/* return the cancel routine */
 		list_del(&cb_pos->cb_list);
 		return -EBADMSG;
 	}
 
+	cl->state = MEI_FILE_CONNECTING;
+	 *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
+	if (mei_connect(dev, cl)) {
+		cl->status = -ENODEV;
+		cb_pos->information = 0;
+		list_del(&cb_pos->cb_list);
+		return -ENODEV;
+	} else {
+		list_move_tail(&cb_pos->cb_list,
+			&dev->ctrl_rd_list.mei_cb.cb_list);
+		cl->timer_count = MEI_CONNECT_TIMEOUT;
+	}
 	return 0;
 }
 
@@ -932,8 +925,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev,	s32 *slots,
 				cb_pos->information);
 		dev_dbg(&dev->pdev->dev, "mei_hdr->length  =%d\n",
 				mei_hdr->length);
-		*slots -= (sizeof(struct mei_msg_hdr) +
-				mei_hdr->length + 3) / 4;
+		*slots -= mei_data2slots(mei_hdr->length);
 		if (mei_write_message(dev, mei_hdr,
 				(unsigned char *)
 				(cb_pos->request_buffer.data +
@@ -951,7 +943,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev,	s32 *slots,
 			list_move_tail(&cb_pos->cb_list,
 				&dev->write_waiting_list.mei_cb.cb_list);
 		}
-	} else if (*slots == ((dev->host_hw_state & H_CBD) >> 24)) {
+	} else if (*slots == dev->hbuf_depth) {
 		/* buffer is still empty */
 		mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0];
 		mei_hdr->host_addr = cl->host_client_id;
@@ -960,9 +952,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev,	s32 *slots,
 			(*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
 		mei_hdr->msg_complete = 0;
 		mei_hdr->reserved = 0;
-
-		(*slots) -= (sizeof(struct mei_msg_hdr) +
-				mei_hdr->length + 3) / 4;
+		*slots -= mei_data2slots(mei_hdr->length);
 		if (mei_write_message(dev, mei_hdr,
 					(unsigned char *)
 					(cb_pos->request_buffer.data +
@@ -1021,8 +1011,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
 		mei_hdr->msg_complete = 1;
 		mei_hdr->reserved = 0;
 
-		*slots -= (sizeof(struct mei_msg_hdr) +
-				mei_hdr->length + 3) / 4;
+		*slots -= mei_data2slots(mei_hdr->length);
 
 		if (mei_write_message(dev, mei_hdr,
 					(dev->iamthif_msg_buf +
@@ -1046,8 +1035,8 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
 				&dev->write_waiting_list.mei_cb.cb_list);
 
 		}
-	} else if (*slots == ((dev->host_hw_state & H_CBD) >> 24)) {
-			/* buffer is still empty */
+	} else if (*slots == dev->hbuf_depth) {
+		/* buffer is still empty */
 		mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0];
 		mei_hdr->host_addr = cl->host_client_id;
 		mei_hdr->me_addr = cl->me_client_id;
@@ -1056,8 +1045,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
 		mei_hdr->msg_complete = 0;
 		mei_hdr->reserved = 0;
 
-		*slots -= (sizeof(struct mei_msg_hdr) +
-				mei_hdr->length + 3) / 4;
+		*slots -= mei_data2slots(mei_hdr->length);
 
 		if (mei_write_message(dev, mei_hdr,
 					(dev->iamthif_msg_buf +
@@ -1199,17 +1187,19 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 	struct mei_io_list *list;
 	int ret;
 
-	if (!mei_host_buffer_is_empty(dev)) {
+	if (!mei_hbuf_is_empty(dev)) {
 		dev_dbg(&dev->pdev->dev, "host buffer is not empty.\n");
 		return 0;
 	}
-	*slots = mei_count_empty_write_slots(dev);
+	*slots = mei_hbuf_empty_slots(dev);
+	if (*slots <= 0)
+		return -EMSGSIZE;
+
 	/* complete all waiting for write CB */
 	dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n");
 
 	list = &dev->write_waiting_list;
-	list_for_each_entry_safe(pos, next,
-			&list->mei_cb.cb_list, cb_list) {
+	list_for_each_entry_safe(pos, next, &list->mei_cb.cb_list, cb_list) {
 		cl = (struct mei_cl *)pos->file_private;
 		if (cl == NULL)
 			continue;
@@ -1219,17 +1209,15 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 		if (MEI_WRITING == cl->writing_state &&
 		   (pos->major_file_operations == MEI_WRITE) &&
 		   (cl != &dev->iamthif_cl)) {
-			dev_dbg(&dev->pdev->dev,
-				"MEI WRITE COMPLETE\n");
+			dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n");
 			cl->writing_state = MEI_WRITE_COMPLETE;
 			list_add_tail(&pos->cb_list,
-				&cmpl_list->mei_cb.cb_list);
+				      &cmpl_list->mei_cb.cb_list);
 		}
 		if (cl == &dev->iamthif_cl) {
 			dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
 			if (dev->iamthif_flow_control_pending) {
-				ret = _mei_irq_thread_iamthif_read(
-						dev, slots);
+				ret = _mei_irq_thread_iamthif_read(dev, slots);
 				if (ret)
 					return ret;
 			}
@@ -1254,25 +1242,18 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 	}
 	if (dev->mei_state == MEI_ENABLED) {
 		if (dev->wd_pending &&
-			mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) {
+		    mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) {
 			if (mei_wd_send(dev))
 				dev_dbg(&dev->pdev->dev, "wd send failed.\n");
-			else
-				if (mei_flow_ctrl_reduce(dev, &dev->wd_cl))
-					return -ENODEV;
+			else if (mei_flow_ctrl_reduce(dev, &dev->wd_cl))
+				return -ENODEV;
 
 			dev->wd_pending = false;
 
-			if (dev->wd_timeout) {
-				*slots -= (sizeof(struct mei_msg_hdr) +
-					 MEI_START_WD_DATA_SIZE + 3) / 4;
-				dev->wd_due_counter = 2;
-			} else {
-				*slots -= (sizeof(struct mei_msg_hdr) +
-					 MEI_WD_PARAMS_SIZE + 3) / 4;
-				dev->wd_due_counter = 0;
-			}
-
+			if (dev->wd_timeout)
+				*slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
+			else
+				*slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
 		}
 	}
 	if (dev->stop)
@@ -1320,42 +1301,34 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 	/* complete  write list CB */
 	dev_dbg(&dev->pdev->dev, "complete write list cb.\n");
 	list_for_each_entry_safe(pos, next,
-			&dev->write_list.mei_cb.cb_list, cb_list) {
+				&dev->write_list.mei_cb.cb_list, cb_list) {
 		cl = (struct mei_cl *)pos->file_private;
 		if (cl == NULL)
 			continue;
 
 		if (cl != &dev->iamthif_cl) {
-			if (!mei_flow_ctrl_creds(dev, cl)) {
+			if (mei_flow_ctrl_creds(dev, cl) <= 0) {
 				dev_dbg(&dev->pdev->dev,
-					"No flow control"
-				    " credentials for client"
-				    " %d, not sending.\n",
-				    cl->host_client_id);
+					"No flow control credentials for client %d, not sending.\n",
+					cl->host_client_id);
 				continue;
 			}
-			ret = _mei_irq_thread_cmpl(dev, slots,
-					    pos,
-					    cl, cmpl_list);
+			ret = _mei_irq_thread_cmpl(dev, slots, pos,
+						cl, cmpl_list);
 			if (ret)
 				return ret;
 
 		} else if (cl == &dev->iamthif_cl) {
 			/* IAMTHIF IOCTL */
 			dev_dbg(&dev->pdev->dev, "complete amthi write cb.\n");
-			if (!mei_flow_ctrl_creds(dev, cl)) {
+			if (mei_flow_ctrl_creds(dev, cl) <= 0) {
 				dev_dbg(&dev->pdev->dev,
-					"No flow control"
-				    " credentials for amthi"
-				    " client %d.\n",
-				    cl->host_client_id);
+					"No flow control credentials for amthi client %d.\n",
+					cl->host_client_id);
 				continue;
 			}
-			ret = _mei_irq_thread_cmpl_iamthif(dev,
-						slots,
-						pos,
-						cl,
-						cmpl_list);
+			ret = _mei_irq_thread_cmpl_iamthif(dev, slots, pos,
+						cl, cmpl_list);
 			if (ret)
 				return ret;
 
@@ -1555,7 +1528,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
 end:
 	dev_dbg(&dev->pdev->dev, "end of bottom half function.\n");
 	dev->host_hw_state = mei_hcsr_read(dev);
-	dev->mei_host_buffer_is_empty = mei_host_buffer_is_empty(dev);
+	dev->mei_host_buffer_is_empty = mei_hbuf_is_empty(dev);
 
 	bus_message_received = false;
 	if (dev->recvd_msg && waitqueue_active(&dev->wait_recvd_msg)) {
diff --git a/drivers/misc/mei/iorw.c b/drivers/misc/mei/iorw.c
index f9cced69b65..50f52e21f58 100644
--- a/drivers/misc/mei/iorw.c
+++ b/drivers/misc/mei/iorw.c
@@ -481,12 +481,8 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb)
 	if (ret && dev->mei_host_buffer_is_empty) {
 		ret = 0;
 		dev->mei_host_buffer_is_empty = false;
-		if (cb->request_buffer.size >
-			(((dev->host_hw_state & H_CBD) >> 24) * sizeof(u32))
-				-sizeof(struct mei_msg_hdr)) {
-			mei_hdr.length =
-			    (((dev->host_hw_state & H_CBD) >> 24) *
-			    sizeof(u32)) - sizeof(struct mei_msg_hdr);
+		if (cb->request_buffer.size > mei_hbuf_max_data(dev)) {
+			mei_hdr.length = mei_hbuf_max_data(dev);
 			mei_hdr.msg_complete = 0;
 		} else {
 			mei_hdr.length = cb->request_buffer.size;
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 783fcd7365b..09233020886 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -714,13 +714,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 	if (rets && dev->mei_host_buffer_is_empty) {
 		rets = 0;
 		dev->mei_host_buffer_is_empty = false;
-		if (length > ((((dev->host_hw_state & H_CBD) >> 24) *
-			sizeof(u32)) - sizeof(struct mei_msg_hdr))) {
-
-			mei_hdr.length =
-				(((dev->host_hw_state & H_CBD) >> 24) *
-				sizeof(u32)) -
-				sizeof(struct mei_msg_hdr);
+		if (length >  mei_hbuf_max_data(dev)) {
+			mei_hdr.length = mei_hbuf_max_data(dev);
 			mei_hdr.msg_complete = 0;
 		} else {
 			mei_hdr.length = length;
@@ -1187,44 +1182,7 @@ static struct pci_driver mei_driver = {
 	.driver.pm = MEI_PM_OPS,
 };
 
-/**
- * mei_init_module - Driver Registration Routine
- *
- * mei_init_module is the first routine called when the driver is
- * loaded. All it does is to register with the PCI subsystem.
- *
- * returns 0 on success, <0 on failure.
- */
-static int __init mei_init_module(void)
-{
-	int ret;
-
-	pr_debug("loading.\n");
-	/* init pci module */
-	ret = pci_register_driver(&mei_driver);
-	if (ret < 0)
-		pr_err("error registering driver.\n");
-
-	return ret;
-}
-
-module_init(mei_init_module);
-
-/**
- * mei_exit_module - Driver Exit Cleanup Routine
- *
- * mei_exit_module is called just before the driver is removed
- * from memory.
- */
-static void __exit mei_exit_module(void)
-{
-	pci_unregister_driver(&mei_driver);
-
-	pr_debug("unloaded successfully.\n");
-}
-
-module_exit(mei_exit_module);
-
+module_pci_driver(mei_driver);
 
 MODULE_AUTHOR("Intel Corporation");
 MODULE_DESCRIPTION("Intel(R) Management Engine Interface");
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 63d7ee97c5f..d61c4ddfc80 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -167,7 +167,10 @@ struct mei_io_list {
 	struct mei_cl_cb mei_cb;
 };
 
-/* MEI private device struct */
+/**
+ * struct mei_deive -  MEI private device struct
+ * @hbuf_depth - depth of host(write) buffer
+ */
 struct mei_device {
 	struct pci_dev *pdev;	/* pointer to pci device struct */
 	/*
@@ -205,6 +208,7 @@ struct mei_device {
 	 */
 	u32 host_hw_state;
 	u32 me_hw_state;
+	u8  hbuf_depth;
 	/*
 	 * waiting queue for receive message from FW
 	 */
@@ -237,15 +241,14 @@ struct mei_device {
 	bool mei_host_buffer_is_empty;
 
 	struct mei_cl wd_cl;
+	bool wd_interface_reg;
 	bool wd_pending;
 	bool wd_stopped;
 	bool wd_bypass;	/* if false, don't refresh watchdog ME client */
 	u16 wd_timeout;	/* seconds ((wd_data[1] << 8) + wd_data[0]) */
-	u16 wd_due_counter;
 	unsigned char wd_data[MEI_START_WD_DATA_SIZE];
 
 
-
 	struct file *iamthif_file_object;
 	struct mei_cl iamthif_cl;
 	struct mei_cl_cb *iamthif_current_cb;
@@ -259,8 +262,6 @@ struct mei_device {
 	bool iamthif_flow_control_pending;
 	bool iamthif_ioctl;
 	bool iamthif_canceled;
-
-	bool wd_interface_reg;
 };
 
 
@@ -361,7 +362,8 @@ int mei_find_me_client_index(const struct mei_device *dev, uuid_le cuuid);
  *
  * returns register value (u32)
  */
-static inline u32 mei_reg_read(struct mei_device *dev, unsigned long offset)
+static inline u32 mei_reg_read(const struct mei_device *dev,
+			       unsigned long offset)
 {
 	return ioread32(dev->mem_addr + offset);
 }
@@ -373,8 +375,8 @@ static inline u32 mei_reg_read(struct mei_device *dev, unsigned long offset)
  * @offset: offset from which to write the data
  * @value: register value to write (u32)
  */
-static inline void mei_reg_write(struct mei_device *dev,
-				unsigned long offset, u32 value)
+static inline void mei_reg_write(const struct mei_device *dev,
+				 unsigned long offset, u32 value)
 {
 	iowrite32(value, dev->mem_addr + offset);
 }
@@ -386,7 +388,7 @@ static inline void mei_reg_write(struct mei_device *dev,
  *
  * returns the byte read.
  */
-static inline u32 mei_hcsr_read(struct mei_device *dev)
+static inline u32 mei_hcsr_read(const struct mei_device *dev)
 {
 	return mei_reg_read(dev, H_CSR);
 }
@@ -398,7 +400,7 @@ static inline u32 mei_hcsr_read(struct mei_device *dev)
  *
  * returns ME_CSR_HA register value (u32)
  */
-static inline u32 mei_mecsr_read(struct mei_device *dev)
+static inline u32 mei_mecsr_read(const struct mei_device *dev)
 {
 	return mei_reg_read(dev, ME_CSR_HA);
 }
@@ -410,7 +412,7 @@ static inline u32 mei_mecsr_read(struct mei_device *dev)
  *
  * returns ME_CB_RW register value (u32)
  */
-static inline u32 mei_mecbrw_read(struct mei_device *dev)
+static inline u32 mei_mecbrw_read(const struct mei_device *dev)
 {
 	return mei_reg_read(dev, ME_CB_RW);
 }
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index e2ec0505eb5..5133fd77b91 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -53,11 +53,12 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
 }
 
 /**
- * host_init_wd - mei initialization wd.
+ * mei_wd_host_init - connect to the watchdog client
  *
  * @dev: the device structure
  * returns -ENENT if wd client cannot be found
  *         -EIO if write has failed
+ *         0 on success
  */
 int mei_wd_host_init(struct mei_device *dev)
 {
@@ -137,7 +138,6 @@ int mei_wd_stop(struct mei_device *dev, bool preserve)
 		return 0;
 
 	dev->wd_timeout = 0;
-	dev->wd_due_counter = 0;
 	memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE);
 	dev->stop = true;
 
@@ -357,8 +357,6 @@ void  mei_watchdog_register(struct mei_device *dev)
 {
 	dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout);
 
-	dev->wd_due_counter = !!dev->wd_timeout;
-
 	if (watchdog_register_device(&amt_wd_dev)) {
 		dev_err(&dev->pdev->dev,
 			"wd: unable to register watchdog device.\n");
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index 2b62232c2c6..acfaeeb9e01 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -349,6 +349,11 @@ void st_int_recv(void *disc_data,
 			st_gdata->rx_skb = alloc_skb(
 					st_gdata->list[type]->max_frame_size,
 					GFP_ATOMIC);
+			if (st_gdata->rx_skb == NULL) {
+				pr_err("out of memory: dropping\n");
+				goto done;
+			}
+
 			skb_reserve(st_gdata->rx_skb,
 					st_gdata->list[type]->reserve);
 			/* next 2 required for BT only */