Merge ../linus

11 files changed, 2009 insertions, 25 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 7fc692a..00db31c 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -18,7 +18,7 @@ config IBM_ASM
 	  service processor board as a regular serial port. To make use of
 	  this feature serial driver support (CONFIG_SERIAL_8250) must be
 	  enabled.
-	  
+
 	  WARNING: This software may not be supported or function
 	  correctly on your IBM server. Please consult the IBM ServerProven
 	  website <http://www.pc.ibm.com/ww/eserver/xseries/serverproven> for
@@ -28,5 +28,64 @@ config IBM_ASM
 
 	  If unsure, say N.
 
-endmenu
+config SGI_IOC4
+	tristate "SGI IOC4 Base IO support"
+	depends on PCI
+	---help---
+	  This option enables basic support for the IOC4 chip on certain
+	  SGI IO controller cards (IO9, IO10, and PCI-RT).  This option
+	  does not enable any specific functions on such a card, but provides
+	  necessary infrastructure for other drivers to utilize.
+
+	  If you have an SGI Altix with an IOC4-based card say Y.
+	  Otherwise say N.
+
+config TIFM_CORE
+	tristate "TI Flash Media interface support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  If you want support for Texas Instruments(R) Flash Media adapters
+	  you should select this option and then also choose an appropriate
+	  host adapter, such as 'TI Flash Media PCI74xx/PCI76xx host adapter
+	  support', if you have a TI PCI74xx compatible card reader, for
+	  example.
+	  You will also have to select some flash card format drivers. MMC/SD
+	  cards are supported via 'MMC/SD Card support: TI Flash Media MMC/SD
+	  Interface support (MMC_TIFM_SD)'.
+
+          To compile this driver as a module, choose M here: the module will
+	  be called tifm_core.
+
+config TIFM_7XX1
+	tristate "TI Flash Media PCI74xx/PCI76xx host adapter support (EXPERIMENTAL)"
+	depends on PCI && TIFM_CORE && EXPERIMENTAL
+	default TIFM_CORE
+	help
+	  This option enables support for Texas Instruments(R) PCI74xx and
+	  PCI76xx families of Flash Media adapters, found in many laptops.
+	  To make actual use of the device, you will have to select some
+	  flash card format drivers, as outlined in the TIFM_CORE Help.
 
+          To compile this driver as a module, choose M here: the module will
+	  be called tifm_7xx1.
+
+config MSI_LAPTOP
+        tristate "MSI Laptop Extras"
+        depends on X86
+        depends on ACPI_EC
+        depends on BACKLIGHT_CLASS_DEVICE
+        ---help---
+	  This is a driver for laptops built by MSI (MICRO-STAR
+	  INTERNATIONAL):
+
+	  MSI MegaBook S270 (MS-1013)
+	  Cytron/TCM/Medion/Tchibo MD96100/SAM2000
+
+	  It adds support for Bluetooth, WLAN and LCD brightness control.
+
+	  More information about this driver is available at
+	  <http://0pointer.de/lennart/tchibo.html>.
+
+	  If you have an MSI S270 laptop, say Y or M here.
+
+endmenu
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 19c2b85..c9e98ab 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -3,5 +3,10 @@
 #
 obj- := misc.o	# Dummy rule to force built-in.o to be made
 
-obj-$(CONFIG_IBM_ASM)	+= ibmasm/
+obj-$(CONFIG_IBM_ASM)		+= ibmasm/
 obj-$(CONFIG_HDPU_FEATURES)	+= hdpuftrs/
+obj-$(CONFIG_MSI_LAPTOP)     += msi-laptop.o
+obj-$(CONFIG_LKDTM)		+= lkdtm.o
+obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o
+obj-$(CONFIG_TIFM_7XX1)       	+= tifm_7xx1.o
+obj-$(CONFIG_SGI_IOC4)		+= ioc4.o
diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index 634d538..48d5abe 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -196,10 +196,10 @@ extern int ibmasm_send_os_state(struct service_processor *sp, int os_state);
 
 /* low level message processing */
 extern int ibmasm_send_i2o_message(struct service_processor *sp);
-extern irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id, struct pt_regs *regs);
+extern irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id);
 
 /* remote console */
-extern void ibmasm_handle_mouse_interrupt(struct service_processor *sp, struct pt_regs *regs);
+extern void ibmasm_handle_mouse_interrupt(struct service_processor *sp);
 extern int ibmasm_init_remote_input_dev(struct service_processor *sp);
 extern void ibmasm_free_remote_input_dev(struct service_processor *sp);
 
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index 4a35caf..b99dc50 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -147,7 +147,6 @@ static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode)
 	if (ret) {
 		ret->i_mode = mode;
 		ret->i_uid = ret->i_gid = 0;
-		ret->i_blksize = PAGE_CACHE_SIZE;
 		ret->i_blocks = 0;
 		ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
 	}
@@ -175,7 +174,7 @@ static struct dentry *ibmasmfs_create_file (struct super_block *sb,
 	}
 
 	inode->i_fop = fops;
-	inode->u.generic_ip = data;
+	inode->i_private = data;
 
 	d_add(dentry, inode);
 	return dentry;
@@ -244,7 +243,7 @@ static int command_file_open(struct inode *inode, struct file *file)
 {
 	struct ibmasmfs_command_data *command_data;
 
-	if (!inode->u.generic_ip)
+	if (!inode->i_private)
 		return -ENODEV;
 
 	command_data = kmalloc(sizeof(struct ibmasmfs_command_data), GFP_KERNEL);
@@ -252,7 +251,7 @@ static int command_file_open(struct inode *inode, struct file *file)
 		return -ENOMEM;
 
 	command_data->command = NULL;
-	command_data->sp = inode->u.generic_ip;
+	command_data->sp = inode->i_private;
 	file->private_data = command_data;
 	return 0;
 }
@@ -351,10 +350,10 @@ static int event_file_open(struct inode *inode, struct file *file)
 	struct ibmasmfs_event_data *event_data;
 	struct service_processor *sp; 
 
-	if (!inode->u.generic_ip)
+	if (!inode->i_private)
 		return -ENODEV;
 
-	sp = inode->u.generic_ip;
+	sp = inode->i_private;
 
 	event_data = kmalloc(sizeof(struct ibmasmfs_event_data), GFP_KERNEL);
 	if (!event_data)
@@ -439,14 +438,14 @@ static int r_heartbeat_file_open(struct inode *inode, struct file *file)
 {
 	struct ibmasmfs_heartbeat_data *rhbeat;
 
-	if (!inode->u.generic_ip)
+	if (!inode->i_private)
 		return -ENODEV;
 
 	rhbeat = kmalloc(sizeof(struct ibmasmfs_heartbeat_data), GFP_KERNEL);
 	if (!rhbeat)
 		return -ENOMEM;
 
-	rhbeat->sp = (struct service_processor *)inode->u.generic_ip;
+	rhbeat->sp = inode->i_private;
 	rhbeat->active = 0;
 	ibmasm_init_reverse_heartbeat(rhbeat->sp, &rhbeat->heartbeat);
 	file->private_data = rhbeat;
@@ -508,7 +507,7 @@ static ssize_t r_heartbeat_file_write(struct file *file, const char __user *buf,
 
 static int remote_settings_file_open(struct inode *inode, struct file *file)
 {
-	file->private_data = inode->u.generic_ip;
+	file->private_data = inode->i_private;
 	return 0;
 }
 
diff --git a/drivers/misc/ibmasm/lowlevel.c b/drivers/misc/ibmasm/lowlevel.c
index 47949a2..a3c589b 100644
--- a/drivers/misc/ibmasm/lowlevel.c
+++ b/drivers/misc/ibmasm/lowlevel.c
@@ -54,7 +54,7 @@ int ibmasm_send_i2o_message(struct service_processor *sp)
 	return 0;
 }
 
-irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id, struct pt_regs *regs)
+irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id)
 {
 	u32	mfa;
 	struct service_processor *sp = (struct service_processor *)dev_id;
@@ -67,7 +67,7 @@ irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id, struct pt_regs *reg
 	dbg("respond to interrupt at %s\n", get_timestamp(tsbuf));
 
 	if (mouse_interrupt_pending(sp)) {
-		ibmasm_handle_mouse_interrupt(sp, regs);
+		ibmasm_handle_mouse_interrupt(sp);
 		clear_mouse_interrupt(sp);
 	}
 
diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c
index 0f9e3aa..a40fda6 100644
--- a/drivers/misc/ibmasm/remote.c
+++ b/drivers/misc/ibmasm/remote.c
@@ -158,12 +158,10 @@ static void print_input(struct remote_input *input)
 	}
 }
 
-static void send_mouse_event(struct input_dev *dev, struct pt_regs *regs,
-		struct remote_input *input)
+static void send_mouse_event(struct input_dev *dev, struct remote_input *input)
 {
 	unsigned char buttons = input->mouse_buttons;
 
-	input_regs(dev, regs);
 	input_report_abs(dev, ABS_X, input->data.mouse.x);
 	input_report_abs(dev, ABS_Y, input->data.mouse.y);
 	input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT);
@@ -172,7 +170,7 @@ static void send_mouse_event(struct input_dev *dev, struct pt_regs *regs,
 	input_sync(dev);
 }
 
-static void send_keyboard_event(struct input_dev *dev, struct pt_regs *regs,
+static void send_keyboard_event(struct input_dev *dev,
 		struct remote_input *input)
 {
 	unsigned int key;
@@ -182,13 +180,11 @@ static void send_keyboard_event(struct input_dev *dev, struct pt_regs *regs,
 		key = xlate_high[code & 0xff];
 	else
 		key = xlate[code];
-	input_regs(dev, regs);
 	input_report_key(dev, key, (input->data.keyboard.key_down) ? 1 : 0);
 	input_sync(dev);
 }
 
-void ibmasm_handle_mouse_interrupt(struct service_processor *sp,
-		struct pt_regs *regs)
+void ibmasm_handle_mouse_interrupt(struct service_processor *sp)
 {
 	unsigned long reader;
 	unsigned long writer;
@@ -203,9 +199,9 @@ void ibmasm_handle_mouse_interrupt(struct service_processor *sp,
 
 		print_input(&input);
 		if (input.type == INPUT_TYPE_MOUSE) {
-			send_mouse_event(sp->remote.mouse_dev, regs, &input);
+			send_mouse_event(sp->remote.mouse_dev, &input);
 		} else if (input.type == INPUT_TYPE_KEYBOARD) {
-			send_keyboard_event(sp->remote.keybd_dev, regs, &input);
+			send_keyboard_event(sp->remote.keybd_dev, &input);
 		} else
 			break;
 
diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c
new file mode 100644
index 0000000..b995a15
--- /dev/null
+++ b/drivers/misc/ioc4.c
@@ -0,0 +1,474 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005-2006 Silicon Graphics, Inc.  All Rights Reserved.
+ */
+
+/* This file contains the master driver module for use by SGI IOC4 subdrivers.
+ *
+ * It allocates any resources shared between multiple subdevices, and
+ * provides accessor functions (where needed) and the like for those
+ * resources.  It also provides a mechanism for the subdevice modules
+ * to support loading and unloading.
+ *
+ * Non-shared resources (e.g. external interrupt A_INT_OUT register page
+ * alias, serial port and UART registers) are handled by the subdevice
+ * modules themselves.
+ *
+ * This is all necessary because IOC4 is not implemented as a multi-function
+ * PCI device, but an amalgamation of disparate registers for several
+ * types of device (ATA, serial, external interrupts).  The normal
+ * resource management in the kernel doesn't have quite the right interfaces
+ * to handle this situation (e.g. multiple modules can't claim the same
+ * PCI ID), thus this IOC4 master module.
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/ioc4.h>
+#include <linux/ktime.h>
+#include <linux/mutex.h>
+#include <linux/time.h>
+#include <asm/io.h>
+
+/***************
+ * Definitions *
+ ***************/
+
+/* Tweakable values */
+
+/* PCI bus speed detection/calibration */
+#define IOC4_CALIBRATE_COUNT 63		/* Calibration cycle period */
+#define IOC4_CALIBRATE_CYCLES 256	/* Average over this many cycles */
+#define IOC4_CALIBRATE_DISCARD 2	/* Discard first few cycles */
+#define IOC4_CALIBRATE_LOW_MHZ 25	/* Lower bound on bus speed sanity */
+#define IOC4_CALIBRATE_HIGH_MHZ 75	/* Upper bound on bus speed sanity */
+#define IOC4_CALIBRATE_DEFAULT_MHZ 66	/* Assumed if sanity check fails */
+
+/************************
+ * Submodule management *
+ ************************/
+
+static DEFINE_MUTEX(ioc4_mutex);
+
+static LIST_HEAD(ioc4_devices);
+static LIST_HEAD(ioc4_submodules);
+
+/* Register an IOC4 submodule */
+int
+ioc4_register_submodule(struct ioc4_submodule *is)
+{
+	struct ioc4_driver_data *idd;
+
+	mutex_lock(&ioc4_mutex);
+	list_add(&is->is_list, &ioc4_submodules);
+
+	/* Initialize submodule for each IOC4 */
+	if (!is->is_probe)
+		goto out;
+
+	list_for_each_entry(idd, &ioc4_devices, idd_list) {
+		if (is->is_probe(idd)) {
+			printk(KERN_WARNING
+			       "%s: IOC4 submodule %s probe failed "
+			       "for pci_dev %s",
+			       __FUNCTION__, module_name(is->is_owner),
+			       pci_name(idd->idd_pdev));
+		}
+	}
+ out:
+	mutex_unlock(&ioc4_mutex);
+	return 0;
+}
+
+/* Unregister an IOC4 submodule */
+void
+ioc4_unregister_submodule(struct ioc4_submodule *is)
+{
+	struct ioc4_driver_data *idd;
+
+	mutex_lock(&ioc4_mutex);
+	list_del(&is->is_list);
+
+	/* Remove submodule for each IOC4 */
+	if (!is->is_remove)
+		goto out;
+
+	list_for_each_entry(idd, &ioc4_devices, idd_list) {
+		if (is->is_remove(idd)) {
+			printk(KERN_WARNING
+			       "%s: IOC4 submodule %s remove failed "
+			       "for pci_dev %s.\n",
+			       __FUNCTION__, module_name(is->is_owner),
+			       pci_name(idd->idd_pdev));
+		}
+	}
+ out:
+	mutex_unlock(&ioc4_mutex);
+}
+
+/*********************
+ * Device management *
+ *********************/
+
+#define IOC4_CALIBRATE_LOW_LIMIT \
+	(1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_LOW_MHZ)
+#define IOC4_CALIBRATE_HIGH_LIMIT \
+	(1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_HIGH_MHZ)
+#define IOC4_CALIBRATE_DEFAULT \
+	(1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_DEFAULT_MHZ)
+
+#define IOC4_CALIBRATE_END \
+	(IOC4_CALIBRATE_CYCLES + IOC4_CALIBRATE_DISCARD)
+
+#define IOC4_INT_OUT_MODE_TOGGLE 0x7	/* Toggle INT_OUT every COUNT+1 ticks */
+
+/* Determines external interrupt output clock period of the PCI bus an
+ * IOC4 is attached to.  This value can be used to determine the PCI
+ * bus speed.
+ *
+ * IOC4 has a design feature that various internal timers are derived from
+ * the PCI bus clock.  This causes IOC4 device drivers to need to take the
+ * bus speed into account when setting various register values (e.g. INT_OUT
+ * register COUNT field, UART divisors, etc).  Since this information is
+ * needed by several subdrivers, it is determined by the main IOC4 driver,
+ * even though the following code utilizes external interrupt registers
+ * to perform the speed calculation.
+ */
+static void
+ioc4_clock_calibrate(struct ioc4_driver_data *idd)
+{
+	union ioc4_int_out int_out;
+	union ioc4_gpcr gpcr;
+	unsigned int state, last_state = 1;
+	struct timespec start_ts, end_ts;
+	uint64_t start, end, period;
+	unsigned int count = 0;
+
+	/* Enable output */
+	gpcr.raw = 0;
+	gpcr.fields.dir = IOC4_GPCR_DIR_0;
+	gpcr.fields.int_out_en = 1;
+	writel(gpcr.raw, &idd->idd_misc_regs->gpcr_s.raw);
+
+	/* Reset to power-on state */
+	writel(0, &idd->idd_misc_regs->int_out.raw);
+	mmiowb();
+
+	/* Set up square wave */
+	int_out.raw = 0;
+	int_out.fields.count = IOC4_CALIBRATE_COUNT;
+	int_out.fields.mode = IOC4_INT_OUT_MODE_TOGGLE;
+	int_out.fields.diag = 0;
+	writel(int_out.raw, &idd->idd_misc_regs->int_out.raw);
+	mmiowb();
+
+	/* Check square wave period averaged over some number of cycles */
+	do {
+		int_out.raw = readl(&idd->idd_misc_regs->int_out.raw);
+		state = int_out.fields.int_out;
+		if (!last_state && state) {
+			count++;
+			if (count == IOC4_CALIBRATE_END) {
+				ktime_get_ts(&end_ts);
+				break;
+			} else if (count == IOC4_CALIBRATE_DISCARD)
+				ktime_get_ts(&start_ts);
+		}
+		last_state = state;
+	} while (1);
+
+	/* Calculation rearranged to preserve intermediate precision.
+	 * Logically:
+	 * 1. "end - start" gives us the measurement period over all
+	 *    the square wave cycles.
+	 * 2. Divide by number of square wave cycles to get the period
+	 *    of a square wave cycle.
+	 * 3. Divide by 2*(int_out.fields.count+1), which is the formula
+	 *    by which the IOC4 generates the square wave, to get the
+	 *    period of an IOC4 INT_OUT count.
+	 */
+	end = end_ts.tv_sec * NSEC_PER_SEC + end_ts.tv_nsec;
+	start = start_ts.tv_sec * NSEC_PER_SEC + start_ts.tv_nsec;
+	period = (end - start) /
+		(IOC4_CALIBRATE_CYCLES * 2 * (IOC4_CALIBRATE_COUNT + 1));
+
+	/* Bounds check the result. */
+	if (period > IOC4_CALIBRATE_LOW_LIMIT ||
+	    period < IOC4_CALIBRATE_HIGH_LIMIT) {
+		printk(KERN_INFO
+		       "IOC4 %s: Clock calibration failed.  Assuming"
+		       "PCI clock is %d ns.\n",
+		       pci_name(idd->idd_pdev),
+		       IOC4_CALIBRATE_DEFAULT / IOC4_EXTINT_COUNT_DIVISOR);
+		period = IOC4_CALIBRATE_DEFAULT;
+	} else {
+		u64 ns = period;
+
+		do_div(ns, IOC4_EXTINT_COUNT_DIVISOR);
+		printk(KERN_DEBUG
+		       "IOC4 %s: PCI clock is %llu ns.\n",
+		       pci_name(idd->idd_pdev), (unsigned long long)ns);
+	}
+
+	/* Remember results.  We store the extint clock period rather
+	 * than the PCI clock period so that greater precision is
+	 * retained.  Divide by IOC4_EXTINT_COUNT_DIVISOR to get
+	 * PCI clock period.
+	 */
+	idd->count_period = period;
+}
+
+/* There are three variants of IOC4 cards: IO9, IO10, and PCI-RT.
+ * Each brings out different combinations of IOC4 signals, thus.
+ * the IOC4 subdrivers need to know to which we're attached.
+ *
+ * We look for the presence of a SCSI (IO9) or SATA (IO10) controller
+ * on the same PCI bus at slot number 3 to differentiate IO9 from IO10.
+ * If neither is present, it's a PCI-RT.
+ */
+static unsigned int
+ioc4_variant(struct ioc4_driver_data *idd)
+{
+	struct pci_dev *pdev = NULL;
+	int found = 0;
+
+	/* IO9: Look for a QLogic ISP 12160 at the same bus and slot 3. */
+	do {
+		pdev = pci_get_device(PCI_VENDOR_ID_QLOGIC,
+				      PCI_DEVICE_ID_QLOGIC_ISP12160, pdev);
+		if (pdev &&
+		    idd->idd_pdev->bus->number == pdev->bus->number &&
+		    3 == PCI_SLOT(pdev->devfn))
+			found = 1;
+		pci_dev_put(pdev);
+	} while (pdev && !found);
+	if (NULL != pdev)
+		return IOC4_VARIANT_IO9;
+
+	/* IO10: Look for a Vitesse VSC 7174 at the same bus and slot 3. */
+	pdev = NULL;
+	do {
+		pdev = pci_get_device(PCI_VENDOR_ID_VITESSE,
+				      PCI_DEVICE_ID_VITESSE_VSC7174, pdev);
+		if (pdev &&
+		    idd->idd_pdev->bus->number == pdev->bus->number &&
+		    3 == PCI_SLOT(pdev->devfn))
+			found = 1;
+		pci_dev_put(pdev);
+	} while (pdev && !found);
+	if (NULL != pdev)
+		return IOC4_VARIANT_IO10;
+
+	/* PCI-RT: No SCSI/SATA controller will be present */
+	return IOC4_VARIANT_PCI_RT;
+}
+
+/* Adds a new instance of an IOC4 card */
+static int
+ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
+{
+	struct ioc4_driver_data *idd;
+	struct ioc4_submodule *is;
+	uint32_t pcmd;
+	int ret;
+
+	/* Enable IOC4 and take ownership of it */
+	if ((ret = pci_enable_device(pdev))) {
+		printk(KERN_WARNING
+		       "%s: Failed to enable IOC4 device for pci_dev %s.\n",
+		       __FUNCTION__, pci_name(pdev));
+		goto out;
+	}
+	pci_set_master(pdev);
+
+	/* Set up per-IOC4 data */
+	idd = kmalloc(sizeof(struct ioc4_driver_data), GFP_KERNEL);
+	if (!idd) {
+		printk(KERN_WARNING
+		       "%s: Failed to allocate IOC4 data for pci_dev %s.\n",
+		       __FUNCTION__, pci_name(pdev));
+		ret = -ENODEV;
+		goto out_idd;
+	}
+	idd->idd_pdev = pdev;
+	idd->idd_pci_id = pci_id;
+
+	/* Map IOC4 misc registers.  These are shared between subdevices
+	 * so the main IOC4 module manages them.
+	 */
+	idd->idd_bar0 = pci_resource_start(idd->idd_pdev, 0);
+	if (!idd->idd_bar0) {
+		printk(KERN_WARNING
+		       "%s: Unable to find IOC4 misc resource "
+		       "for pci_dev %s.\n",
+		       __FUNCTION__, pci_name(idd->idd_pdev));
+		ret = -ENODEV;
+		goto out_pci;
+	}
+	if (!request_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs),
+			    "ioc4_misc")) {
+		printk(KERN_WARNING
+		       "%s: Unable to request IOC4 misc region "
+		       "for pci_dev %s.\n",
+		       __FUNCTION__, pci_name(idd->idd_pdev));
+		ret = -ENODEV;
+		goto out_pci;
+	}
+	idd->idd_misc_regs = ioremap(idd->idd_bar0,
+				     sizeof(struct ioc4_misc_regs));
+	if (!idd->idd_misc_regs) {
+		printk(KERN_WARNING
+		       "%s: Unable to remap IOC4 misc region "
+		       "for pci_dev %s.\n",
+		       __FUNCTION__, pci_name(idd->idd_pdev));
+		ret = -ENODEV;
+		goto out_misc_region;
+	}
+
+	/* Failsafe portion of per-IOC4 initialization */
+
+	/* Detect card variant */
+	idd->idd_variant = ioc4_variant(idd);
+	printk(KERN_INFO "IOC4 %s: %s card detected.\n", pci_name(pdev),
+	       idd->idd_variant == IOC4_VARIANT_IO9 ? "IO9" :
+	       idd->idd_variant == IOC4_VARIANT_PCI_RT ? "PCI-RT" :
+	       idd->idd_variant == IOC4_VARIANT_IO10 ? "IO10" : "unknown");
+
+	/* Initialize IOC4 */
+	pci_read_config_dword(idd->idd_pdev, PCI_COMMAND, &pcmd);
+	pci_write_config_dword(idd->idd_pdev, PCI_COMMAND,
+			       pcmd | PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
+
+	/* Determine PCI clock */
+	ioc4_clock_calibrate(idd);
+
+	/* Disable/clear all interrupts.  Need to do this here lest
+	 * one submodule request the shared IOC4 IRQ, but interrupt
+	 * is generated by a different subdevice.
+	 */
+	/* Disable */
+	writel(~0, &idd->idd_misc_regs->other_iec.raw);
+	writel(~0, &idd->idd_misc_regs->sio_iec);
+	/* Clear (i.e. acknowledge) */
+	writel(~0, &idd->idd_misc_regs->other_ir.raw);
+	writel(~0, &idd->idd_misc_regs->sio_ir);
+
+	/* Track PCI-device specific data */
+	idd->idd_serial_data = NULL;
+	pci_set_drvdata(idd->idd_pdev, idd);
+
+	mutex_lock(&ioc4_mutex);
+	list_add_tail(&idd->idd_list, &ioc4_devices);
+
+	/* Add this IOC4 to all submodules */
+	list_for_each_entry(is, &ioc4_submodules, is_list) {
+		if (is->is_probe && is->is_probe(idd)) {
+			printk(KERN_WARNING
+			       "%s: IOC4 submodule 0x%s probe failed "
+			       "for pci_dev %s.\n",
+			       __FUNCTION__, module_name(is->is_owner),
+			       pci_name(idd->idd_pdev));
+		}
+	}
+	mutex_unlock(&ioc4_mutex);
+
+	return 0;
+
+out_misc_region:
+	release_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs));
+out_pci:
+	kfree(idd);
+out_idd:
+	pci_disable_device(pdev);
+out:
+	return ret;
+}
+
+/* Removes a particular instance of an IOC4 card. */
+static void
+ioc4_remove(struct pci_dev *pdev)
+{
+	struct ioc4_submodule *is;
+	struct ioc4_driver_data *idd;
+
+	idd = pci_get_drvdata(pdev);
+
+	/* Remove this IOC4 from all submodules */
+	mutex_lock(&ioc4_mutex);
+	list_for_each_entry(is, &ioc4_submodules, is_list) {
+		if (is->is_remove && is->is_remove(idd)) {
+			printk(KERN_WARNING
+			       "%s: IOC4 submodule 0x%s remove failed "
+			       "for pci_dev %s.\n",
+			       __FUNCTION__, module_name(is->is_owner),
+			       pci_name(idd->idd_pdev));
+		}
+	}
+	mutex_unlock(&ioc4_mutex);
+
+	/* Release resources */
+	iounmap(idd->idd_misc_regs);
+	if (!idd->idd_bar0) {
+		printk(KERN_WARNING
+		       "%s: Unable to get IOC4 misc mapping for pci_dev %s. "
+		       "Device removal may be incomplete.\n",
+		       __FUNCTION__, pci_name(idd->idd_pdev));
+	}
+	release_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs));
+
+	/* Disable IOC4 and relinquish */
+	pci_disable_device(pdev);
+
+	/* Remove and free driver data */
+	mutex_lock(&ioc4_mutex);
+	list_del(&idd->idd_list);
+	mutex_unlock(&ioc4_mutex);
+	kfree(idd);
+}
+
+static struct pci_device_id ioc4_id_table[] = {
+	{PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC4, PCI_ANY_ID,
+	 PCI_ANY_ID, 0x0b4000, 0xFFFFFF},
+	{0}
+};
+
+static struct pci_driver ioc4_driver = {
+	.name = "IOC4",
+	.id_table = ioc4_id_table,
+	.probe = ioc4_probe,
+	.remove = ioc4_remove,
+};
+
+MODULE_DEVICE_TABLE(pci, ioc4_id_table);
+
+/*********************
+ * Module management *
+ *********************/
+
+/* Module load */
+static int __devinit
+ioc4_init(void)
+{
+	return pci_register_driver(&ioc4_driver);
+}
+
+/* Module unload */
+static void __devexit
+ioc4_exit(void)
+{
+	pci_unregister_driver(&ioc4_driver);
+}
+
+module_init(ioc4_init);
+module_exit(ioc4_exit);
+
+MODULE_AUTHOR("Brent Casavant - Silicon Graphics, Inc. <bcasavan@sgi.com>");
+MODULE_DESCRIPTION("PCI driver master module for SGI IOC4 Base-IO Card");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(ioc4_register_submodule);
+EXPORT_SYMBOL(ioc4_unregister_submodule);
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
new file mode 100644
index 0000000..db9d7df
--- /dev/null
+++ b/drivers/misc/lkdtm.c
@@ -0,0 +1,343 @@
+/*
+ * Kprobe module for testing crash dumps
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2006
+ *
+ * Author: Ankita Garg <ankita@in.ibm.com>
+ *
+ * This module induces system failures at predefined crashpoints to
+ * evaluate the reliability of crash dumps obtained using different dumping
+ * solutions.
+ *
+ * It is adapted from the Linux Kernel Dump Test Tool by
+ * Fernando Luis Vazquez Cao <http://lkdtt.sourceforge.net>
+ *
+ * Usage :  insmod lkdtm.ko [recur_count={>0}] cpoint_name=<> cpoint_type=<>
+ *							[cpoint_count={>0}]
+ *
+ * recur_count : Recursion level for the stack overflow test. Default is 10.
+ *
+ * cpoint_name : Crash point where the kernel is to be crashed. It can be
+ *		 one of INT_HARDWARE_ENTRY, INT_HW_IRQ_EN, INT_TASKLET_ENTRY,
+ *		 FS_DEVRW, MEM_SWAPOUT, TIMERADD, SCSI_DISPATCH_CMD,
+ *		 IDE_CORE_CP
+ *
+ * cpoint_type : Indicates the action to be taken on hitting the crash point.
+ *		 It can be one of PANIC, BUG, EXCEPTION, LOOP, OVERFLOW
+ *
+ * cpoint_count : Indicates the number of times the crash point is to be hit
+ *		  to trigger an action. The default is 10.
+ */
+
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/buffer_head.h>
+#include <linux/kprobes.h>
+#include <linux/list.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/hrtimer.h>
+#include <scsi/scsi_cmnd.h>
+
+#ifdef CONFIG_IDE
+#include <linux/ide.h>
+#endif
+
+#define NUM_CPOINTS 8
+#define NUM_CPOINT_TYPES 5
+#define DEFAULT_COUNT 10
+#define REC_NUM_DEFAULT 10
+
+enum cname {
+	INVALID,
+	INT_HARDWARE_ENTRY,
+	INT_HW_IRQ_EN,
+	INT_TASKLET_ENTRY,
+	FS_DEVRW,
+	MEM_SWAPOUT,
+	TIMERADD,
+	SCSI_DISPATCH_CMD,
+	IDE_CORE_CP
+};
+
+enum ctype {
+	NONE,
+	PANIC,
+	BUG,
+	EXCEPTION,
+	LOOP,
+	OVERFLOW
+};
+
+static char* cp_name[] = {
+	"INT_HARDWARE_ENTRY",
+	"INT_HW_IRQ_EN",
+	"INT_TASKLET_ENTRY",
+	"FS_DEVRW",
+	"MEM_SWAPOUT",
+	"TIMERADD",
+	"SCSI_DISPATCH_CMD",
+	"IDE_CORE_CP"
+};
+
+static char* cp_type[] = {
+	"PANIC",
+	"BUG",
+	"EXCEPTION",
+	"LOOP",
+	"OVERFLOW"
+};
+
+static struct jprobe lkdtm;
+
+static int lkdtm_parse_commandline(void);
+static void lkdtm_handler(void);
+
+static char* cpoint_name = INVALID;
+static char* cpoint_type = NONE;
+static int cpoint_count = DEFAULT_COUNT;
+static int recur_count = REC_NUM_DEFAULT;
+
+static enum cname cpoint = INVALID;
+static enum ctype cptype = NONE;
+static int count = DEFAULT_COUNT;
+
+module_param(recur_count, int, 0644);
+MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test, "\
+				 "default is 10");
+module_param(cpoint_name, charp, 0644);
+MODULE_PARM_DESC(cpoint_name, " Crash Point, where kernel is to be crashed");
+module_param(cpoint_type, charp, 0644);
+MODULE_PARM_DESC(cpoint_type, " Crash Point Type, action to be taken on "\
+				"hitting the crash point");
+module_param(cpoint_count, int, 0644);
+MODULE_PARM_DESC(cpoint_count, " Crash Point Count, number of times the "\
+				"crash point is to be hit to trigger action");
+
+unsigned int jp_do_irq(unsigned int irq)
+{
+	lkdtm_handler();
+	jprobe_return();
+	return 0;
+}
+
+irqreturn_t jp_handle_irq_event(unsigned int irq, struct irqaction *action)
+{
+	lkdtm_handler();
+	jprobe_return();
+	return 0;
+}
+
+void jp_tasklet_action(struct softirq_action *a)
+{
+	lkdtm_handler();
+	jprobe_return();
+}
+
+void jp_ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
+{
+	lkdtm_handler();
+	jprobe_return();
+}
+
+struct scan_control;
+
+unsigned long jp_shrink_inactive_list(unsigned long max_scan,
+				struct zone *zone, struct scan_control *sc)
+{
+	lkdtm_handler();
+	jprobe_return();
+	return 0;
+}
+
+int jp_hrtimer_start(struct hrtimer *timer, ktime_t tim,
+				const enum hrtimer_mode mode)
+{
+	lkdtm_handler();
+	jprobe_return();
+	return 0;
+}
+
+int jp_scsi_dispatch_cmd(struct scsi_cmnd *cmd)
+{
+	lkdtm_handler();
+	jprobe_return();
+	return 0;
+}
+
+#ifdef CONFIG_IDE
+int jp_generic_ide_ioctl(ide_drive_t *drive, struct file *file,
+			struct block_device *bdev, unsigned int cmd,
+			unsigned long arg)
+{
+	lkdtm_handler();
+	jprobe_return();
+	return 0;
+}
+#endif
+
+static int lkdtm_parse_commandline(void)
+{
+	int i;
+
+	if (cpoint_name == INVALID || cpoint_type == NONE ||
+					cpoint_count < 1 || recur_count < 1)
+		return -EINVAL;
+
+	for (i = 0; i < NUM_CPOINTS; ++i) {
+		if (!strcmp(cpoint_name, cp_name[i])) {
+			cpoint = i + 1;
+			break;
+		}
+	}
+
+	for (i = 0; i < NUM_CPOINT_TYPES; ++i) {
+		if (!strcmp(cpoint_type, cp_type[i])) {
+			cptype = i + 1;
+			break;
+		}
+	}
+
+	if (cpoint == INVALID || cptype == NONE)
+                return -EINVAL;
+
+	count = cpoint_count;
+
+	return 0;
+}
+
+static int recursive_loop(int a)
+{
+	char buf[1024];
+
+	memset(buf,0xFF,1024);
+	recur_count--;
+	if (!recur_count)
+		return 0;
+	else
+        	return recursive_loop(a);
+}
+
+void lkdtm_handler(void)
+{
+	printk(KERN_INFO "lkdtm : Crash point %s of type %s hit\n",
+					 cpoint_name, cpoint_type);
+	--count;
+
+	if (count == 0) {
+		switch (cptype) {
+		case NONE:
+			break;
+		case PANIC:
+			printk(KERN_INFO "lkdtm : PANIC\n");
+			panic("dumptest");
+			break;
+		case BUG:
+			printk(KERN_INFO "lkdtm : BUG\n");
+			BUG();
+			break;
+		case EXCEPTION:
+			printk(KERN_INFO "lkdtm : EXCEPTION\n");
+			*((int *) 0) = 0;
+			break;
+		case LOOP:
+			printk(KERN_INFO "lkdtm : LOOP\n");
+			for (;;);
+			break;
+		case OVERFLOW:
+			printk(KERN_INFO "lkdtm : OVERFLOW\n");
+			(void) recursive_loop(0);
+			break;
+		default:
+			break;
+		}
+		count = cpoint_count;
+	}
+}
+
+int lkdtm_module_init(void)
+{
+	int ret;
+
+	if (lkdtm_parse_commandline() == -EINVAL) {
+		printk(KERN_INFO "lkdtm : Invalid command\n");
+		return -EINVAL;
+	}
+
+	switch (cpoint) {
+	case INT_HARDWARE_ENTRY:
+		lkdtm.kp.symbol_name = "__do_IRQ";
+		lkdtm.entry = (kprobe_opcode_t*) jp_do_irq;
+		break;
+	case INT_HW_IRQ_EN:
+		lkdtm.kp.symbol_name = "handle_IRQ_event";
+		lkdtm.entry = (kprobe_opcode_t*) jp_handle_irq_event;
+		break;
+	case INT_TASKLET_ENTRY:
+		lkdtm.kp.symbol_name = "tasklet_action";
+		lkdtm.entry = (kprobe_opcode_t*) jp_tasklet_action;
+		break;
+	case FS_DEVRW:
+		lkdtm.kp.symbol_name = "ll_rw_block";
+		lkdtm.entry = (kprobe_opcode_t*) jp_ll_rw_block;
+		break;
+	case MEM_SWAPOUT:
+		lkdtm.kp.symbol_name = "shrink_inactive_list";
+		lkdtm.entry = (kprobe_opcode_t*) jp_shrink_inactive_list;
+		break;
+	case TIMERADD:
+		lkdtm.kp.symbol_name = "hrtimer_start";
+		lkdtm.entry = (kprobe_opcode_t*) jp_hrtimer_start;
+		break;
+	case SCSI_DISPATCH_CMD:
+		lkdtm.kp.symbol_name = "scsi_dispatch_cmd";
+		lkdtm.entry = (kprobe_opcode_t*) jp_scsi_dispatch_cmd;
+		break;
+	case IDE_CORE_CP:
+#ifdef CONFIG_IDE
+		lkdtm.kp.symbol_name = "generic_ide_ioctl";
+		lkdtm.entry = (kprobe_opcode_t*) jp_generic_ide_ioctl;
+#else
+		printk(KERN_INFO "lkdtm : Crash point not available\n");
+#endif
+		break;
+	default:
+		printk(KERN_INFO "lkdtm : Invalid Crash Point\n");
+		break;
+	}
+
+	if ((ret = register_jprobe(&lkdtm)) < 0) {
+                printk(KERN_INFO "lkdtm : Couldn't register jprobe\n");
+                return ret;
+	}
+
+	printk(KERN_INFO "lkdtm : Crash point %s of type %s registered\n",
+						cpoint_name, cpoint_type);
+	return 0;
+}
+
+void lkdtm_module_exit(void)
+{
+        unregister_jprobe(&lkdtm);
+        printk(KERN_INFO "lkdtm : Crash point unregistered\n");
+}
+
+module_init(lkdtm_module_init);
+module_exit(lkdtm_module_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/misc/msi-laptop.c b/drivers/misc/msi-laptop.c
new file mode 100644
index 0000000..fdb7153
--- /dev/null
+++ b/drivers/misc/msi-laptop.c
@@ -0,0 +1,395 @@
+/*-*-linux-c-*-*/
+
+/*
+  Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+  02110-1301, USA.
+ */
+
+/*
+ * msi-laptop.c - MSI S270 laptop support. This laptop is sold under
+ * various brands, including "Cytron/TCM/Medion/Tchibo MD96100".
+ *
+ * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/:
+ *
+ *   lcd_level - Screen brightness: contains a single integer in the
+ *   range 0..8. (rw)
+ *
+ *   auto_brightness - Enable automatic brightness control: contains
+ *   either 0 or 1. If set to 1 the hardware adjusts the screen
+ *   brightness automatically when the power cord is
+ *   plugged/unplugged. (rw)
+ *
+ *   wlan - WLAN subsystem enabled: contains either 0 or 1. (ro)
+ *
+ *   bluetooth - Bluetooth subsystem enabled: contains either 0 or 1
+ *   Please note that this file is constantly 0 if no Bluetooth
+ *   hardware is available. (ro)
+ *
+ * In addition to these platform device attributes the driver
+ * registers itself in the Linux backlight control subsystem and is
+ * available to userspace under /sys/class/backlight/msi-laptop-bl/.
+ *
+ * This driver might work on other laptops produced by MSI. If you
+ * want to try it you can pass force=1 as argument to the module which
+ * will force it to load even when the DMI data doesn't identify the
+ * laptop as MSI S270. YMMV.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/backlight.h>
+#include <linux/platform_device.h>
+#include <linux/autoconf.h>
+
+#define MSI_DRIVER_VERSION "0.5"
+
+#define MSI_LCD_LEVEL_MAX 9
+
+#define MSI_EC_COMMAND_WIRELESS 0x10
+#define MSI_EC_COMMAND_LCD_LEVEL 0x11
+
+static int force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
+
+static int auto_brightness;
+module_param(auto_brightness, int, 0);
+MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
+
+/* Hardware access */
+
+static int set_lcd_level(int level)
+{
+	u8 buf[2];
+
+	if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
+		return -EINVAL;
+
+	buf[0] = 0x80;
+	buf[1] = (u8) (level*31);
+
+	return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf), NULL, 0);
+}
+
+static int get_lcd_level(void)
+{
+	u8 wdata = 0, rdata;
+	int result;
+
+	result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1);
+	if (result < 0)
+		return result;
+
+	return (int) rdata / 31;
+}
+
+static int get_auto_brightness(void)
+{
+	u8 wdata = 4, rdata;
+	int result;
+
+	result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1);
+	if (result < 0)
+		return result;
+
+	return !!(rdata & 8);
+}
+
+static int set_auto_brightness(int enable)
+{
+	u8 wdata[2], rdata;
+	int result;
+
+	wdata[0] = 4;
+
+	result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1, &rdata, 1);
+	if (result < 0)
+		return result;
+
+	wdata[0] = 0x84;
+	wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
+
+	return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, NULL, 0);
+}
+
+static int get_wireless_state(int *wlan, int *bluetooth)
+{
+	u8 wdata = 0, rdata;
+	int result;
+
+	result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
+	if (result < 0)
+		return -1;
+
+	if (wlan)
+		*wlan = !!(rdata & 8);
+
+	if (bluetooth)
+		*bluetooth = !!(rdata & 128);
+
+	return 0;
+}
+
+/* Backlight device stuff */
+
+static int bl_get_brightness(struct backlight_device *b)
+{
+	return get_lcd_level();
+}
+
+
+static int bl_update_status(struct backlight_device *b)
+{
+	return set_lcd_level(b->props->brightness);
+}
+
+static struct backlight_properties msibl_props = {
+	.owner		= THIS_MODULE,
+	.get_brightness = bl_get_brightness,
+	.update_status  = bl_update_status,
+	.max_brightness = MSI_LCD_LEVEL_MAX-1,
+};
+
+static struct backlight_device *msibl_device;
+
+/* Platform device */
+
+static ssize_t show_wlan(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	int ret, enabled;
+
+	ret = get_wireless_state(&enabled, NULL);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%i\n", enabled);
+}
+
+static ssize_t show_bluetooth(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	int ret, enabled;
+
+	ret = get_wireless_state(NULL, &enabled);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%i\n", enabled);
+}
+
+static ssize_t show_lcd_level(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	int ret;
+
+	ret = get_lcd_level();
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%i\n", ret);
+}
+
+static ssize_t store_lcd_level(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+
+	int level, ret;
+
+	if (sscanf(buf, "%i", &level) != 1 || (level < 0 || level >= MSI_LCD_LEVEL_MAX))
+		return -EINVAL;
+
+	ret = set_lcd_level(level);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static ssize_t show_auto_brightness(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+
+	int ret;
+
+	ret = get_auto_brightness();
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%i\n", ret);
+}
+
+static ssize_t store_auto_brightness(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+
+	int enable, ret;
+
+	if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
+		return -EINVAL;
+
+	ret = set_auto_brightness(enable);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
+static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness, store_auto_brightness);
+static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
+static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
+
+static struct attribute *msipf_attributes[] = {
+	&dev_attr_lcd_level.attr,
+	&dev_attr_auto_brightness.attr,
+	&dev_attr_bluetooth.attr,
+	&dev_attr_wlan.attr,
+	NULL
+};
+
+static struct attribute_group msipf_attribute_group = {
+	.attrs = msipf_attributes
+};
+
+static struct platform_driver msipf_driver = {
+	.driver = {
+		.name = "msi-laptop-pf",
+		.owner = THIS_MODULE,
+	}
+};
+
+static struct platform_device *msipf_device;
+
+/* Initialization */
+
+static struct dmi_system_id __initdata msi_dmi_table[] = {
+	{
+		.ident = "MSI S270",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
+		}
+	},
+	{
+		.ident = "Medion MD96100",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
+		}
+	},
+	{ }
+};
+
+
+static int __init msi_init(void)
+{
+	int ret;
+
+	if (acpi_disabled)
+		return -ENODEV;
+
+	if (!force && !dmi_check_system(msi_dmi_table))
+		return -ENODEV;
+
+	if (auto_brightness < 0 || auto_brightness > 2)
+		return -EINVAL;
+
+	/* Register backlight stuff */
+
+	msibl_device = backlight_device_register("msi-laptop-bl", NULL, &msibl_props);
+	if (IS_ERR(msibl_device))
+		return PTR_ERR(msibl_device);
+
+	ret = platform_driver_register(&msipf_driver);
+	if (ret)
+		goto fail_backlight;
+
+	/* Register platform stuff */
+
+	msipf_device = platform_device_alloc("msi-laptop-pf", -1);
+	if (!msipf_device) {
+		ret = -ENOMEM;
+		goto fail_platform_driver;
+	}
+
+	ret = platform_device_add(msipf_device);
+	if (ret)
+		goto fail_platform_device1;
+
+	ret = sysfs_create_group(&msipf_device->dev.kobj, &msipf_attribute_group);
+	if (ret)
+		goto fail_platform_device2;
+
+	/* Disable automatic brightness control by default because
+	 * this module was probably loaded to do brightness control in
+	 * software. */
+
+	if (auto_brightness != 2)
+		set_auto_brightness(auto_brightness);
+
+	printk(KERN_INFO "msi-laptop: driver "MSI_DRIVER_VERSION" successfully loaded.\n");
+
+	return 0;
+
+fail_platform_device2:
+
+	platform_device_del(msipf_device);
+
+fail_platform_device1:
+
+	platform_device_put(msipf_device);
+
+fail_platform_driver:
+
+	platform_driver_unregister(&msipf_driver);
+
+fail_backlight:
+
+	backlight_device_unregister(msibl_device);
+
+	return ret;
+}
+
+static void __exit msi_cleanup(void)
+{
+
+	sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
+	platform_device_unregister(msipf_device);
+	platform_driver_unregister(&msipf_driver);
+	backlight_device_unregister(msibl_device);
+
+	/* Enable automatic brightness control again */
+	if (auto_brightness != 2)
+		set_auto_brightness(1);
+
+	printk(KERN_INFO "msi-laptop: driver unloaded.\n");
+}
+
+module_init(msi_init);
+module_exit(msi_cleanup);
+
+MODULE_AUTHOR("Lennart Poettering");
+MODULE_DESCRIPTION("MSI Laptop Support");
+MODULE_VERSION(MSI_DRIVER_VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
new file mode 100644
index 0000000..2ab7add
--- /dev/null
+++ b/drivers/misc/tifm_7xx1.c
@@ -0,0 +1,440 @@
+/*
+ *  tifm_7xx1.c - TI FlashMedia driver
+ *
+ *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/tifm.h>
+#include <linux/dma-mapping.h>
+
+#define DRIVER_NAME "tifm_7xx1"
+#define DRIVER_VERSION "0.6"
+
+static void tifm_7xx1_eject(struct tifm_adapter *fm, struct tifm_dev *sock)
+{
+	int cnt;
+	unsigned long flags;
+
+	spin_lock_irqsave(&fm->lock, flags);
+	if (!fm->inhibit_new_cards) {
+		for (cnt = 0; cnt < fm->max_sockets; cnt++) {
+			if (fm->sockets[cnt] == sock) {
+				fm->remove_mask |= (1 << cnt);
+				queue_work(fm->wq, &fm->media_remover);
+				break;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&fm->lock, flags);
+}
+
+static void tifm_7xx1_remove_media(struct work_struct *work)
+{
+	struct tifm_adapter *fm =
+		container_of(work, struct tifm_adapter, media_remover);
+	unsigned long flags;
+	int cnt;
+	struct tifm_dev *sock;
+
+	if (!class_device_get(&fm->cdev))
+		return;
+	spin_lock_irqsave(&fm->lock, flags);
+	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
+		if (fm->sockets[cnt] && (fm->remove_mask & (1 << cnt))) {
+			printk(KERN_INFO DRIVER_NAME
+			       ": demand removing card from socket %d\n", cnt);
+			sock = fm->sockets[cnt];
+			fm->sockets[cnt] = NULL;
+			fm->remove_mask &= ~(1 << cnt);
+
+			writel(0x0e00, sock->addr + SOCK_CONTROL);
+
+			writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
+				fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+			writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
+				fm->addr + FM_SET_INTERRUPT_ENABLE);
+
+			spin_unlock_irqrestore(&fm->lock, flags);
+			device_unregister(&sock->dev);
+			spin_lock_irqsave(&fm->lock, flags);
+		}
+	}
+	spin_unlock_irqrestore(&fm->lock, flags);
+	class_device_put(&fm->cdev);
+}
+
+static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id)
+{
+	struct tifm_adapter *fm = dev_id;
+	unsigned int irq_status;
+	unsigned int sock_irq_status, cnt;
+
+	spin_lock(&fm->lock);
+	irq_status = readl(fm->addr + FM_INTERRUPT_STATUS);
+	if (irq_status == 0 || irq_status == (~0)) {
+		spin_unlock(&fm->lock);
+		return IRQ_NONE;
+	}
+
+	if (irq_status & TIFM_IRQ_ENABLE) {
+		writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+
+		for (cnt = 0; cnt <  fm->max_sockets; cnt++) {
+			sock_irq_status = (irq_status >> cnt) &
+					(TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK);
+
+			if (fm->sockets[cnt]) {
+				if (sock_irq_status &&
+						fm->sockets[cnt]->signal_irq)
+					sock_irq_status = fm->sockets[cnt]->
+						signal_irq(fm->sockets[cnt],
+							sock_irq_status);
+
+				if (irq_status & (1 << cnt))
+					fm->remove_mask |= 1 << cnt;
+			} else {
+				if (irq_status & (1 << cnt))
+					fm->insert_mask |= 1 << cnt;
+			}
+		}
+	}
+	writel(irq_status, fm->addr + FM_INTERRUPT_STATUS);
+
+	if (!fm->inhibit_new_cards) {
+		if (!fm->remove_mask && !fm->insert_mask) {
+			writel(TIFM_IRQ_ENABLE,
+				fm->addr + FM_SET_INTERRUPT_ENABLE);
+		} else {
+			queue_work(fm->wq, &fm->media_remover);
+			queue_work(fm->wq, &fm->media_inserter);
+		}
+	}
+
+	spin_unlock(&fm->lock);
+	return IRQ_HANDLED;
+}
+
+static tifm_media_id tifm_7xx1_toggle_sock_power(char __iomem *sock_addr, int is_x2)
+{
+	unsigned int s_state;
+	int cnt;
+
+	writel(0x0e00, sock_addr + SOCK_CONTROL);
+
+	for (cnt = 0; cnt < 100; cnt++) {
+		if (!(TIFM_SOCK_STATE_POWERED &
+				readl(sock_addr + SOCK_PRESENT_STATE)))
+			break;
+		msleep(10);
+	}
+
+	s_state = readl(sock_addr + SOCK_PRESENT_STATE);
+	if (!(TIFM_SOCK_STATE_OCCUPIED & s_state))
+		return FM_NULL;
+
+	if (is_x2) {
+		writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL);
+	} else {
+		// SmartMedia cards need extra 40 msec
+		if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1)
+			msleep(40);
+		writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED,
+		       sock_addr + SOCK_CONTROL);
+		msleep(10);
+		writel((s_state & 0x7) | 0x0c00 | TIFM_CTRL_LED,
+			sock_addr + SOCK_CONTROL);
+	}
+
+	for (cnt = 0; cnt < 100; cnt++) {
+		if ((TIFM_SOCK_STATE_POWERED &
+				readl(sock_addr + SOCK_PRESENT_STATE)))
+			break;
+		msleep(10);
+	}
+
+	if (!is_x2)
+		writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED),
+		       sock_addr + SOCK_CONTROL);
+
+	return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7;
+}
+
+inline static char __iomem *
+tifm_7xx1_sock_addr(char __iomem *base_addr, unsigned int sock_num)
+{
+	return base_addr + ((sock_num + 1) << 10);
+}
+
+static void tifm_7xx1_insert_media(struct work_struct *work)
+{
+	struct tifm_adapter *fm =
+		container_of(work, struct tifm_adapter, media_inserter);
+	unsigned long flags;
+	tifm_media_id media_id;
+	char *card_name = "xx";
+	int cnt, ok_to_register;
+	unsigned int insert_mask;
+	struct tifm_dev *new_sock = NULL;
+
+	if (!class_device_get(&fm->cdev))
+		return;
+	spin_lock_irqsave(&fm->lock, flags);
+	insert_mask = fm->insert_mask;
+	fm->insert_mask = 0;
+	if (fm->inhibit_new_cards) {
+		spin_unlock_irqrestore(&fm->lock, flags);
+		class_device_put(&fm->cdev);
+		return;
+	}
+	spin_unlock_irqrestore(&fm->lock, flags);
+
+	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
+		if (!(insert_mask & (1 << cnt)))
+			continue;
+
+		media_id = tifm_7xx1_toggle_sock_power(tifm_7xx1_sock_addr(fm->addr, cnt),
+						       fm->max_sockets == 2);
+		if (media_id) {
+			ok_to_register = 0;
+			new_sock = tifm_alloc_device(fm, cnt);
+			if (new_sock) {
+				new_sock->addr = tifm_7xx1_sock_addr(fm->addr,
+									cnt);
+				new_sock->media_id = media_id;
+				switch (media_id) {
+				case 1:
+					card_name = "xd";
+					break;
+				case 2:
+					card_name = "ms";
+					break;
+				case 3:
+					card_name = "sd";
+					break;
+				default:
+					break;
+				}
+				snprintf(new_sock->dev.bus_id, BUS_ID_SIZE,
+					"tifm_%s%u:%u", card_name, fm->id, cnt);
+				printk(KERN_INFO DRIVER_NAME
+					": %s card detected in socket %d\n",
+					card_name, cnt);
+				spin_lock_irqsave(&fm->lock, flags);
+				if (!fm->sockets[cnt]) {
+					fm->sockets[cnt] = new_sock;
+					ok_to_register = 1;
+				}
+				spin_unlock_irqrestore(&fm->lock, flags);
+				if (!ok_to_register ||
+					    device_register(&new_sock->dev)) {
+					spin_lock_irqsave(&fm->lock, flags);
+					fm->sockets[cnt] = NULL;
+					spin_unlock_irqrestore(&fm->lock,
+								flags);
+					tifm_free_device(&new_sock->dev);
+				}
+			}
+		}
+		writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
+		       fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+		writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
+		       fm->addr + FM_SET_INTERRUPT_ENABLE);
+	}
+
+	writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE);
+	class_device_put(&fm->cdev);
+}
+
+static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state)
+{
+	struct tifm_adapter *fm = pci_get_drvdata(dev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&fm->lock, flags);
+	fm->inhibit_new_cards = 1;
+	fm->remove_mask = 0xf;
+	fm->insert_mask = 0;
+	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+	spin_unlock_irqrestore(&fm->lock, flags);
+	flush_workqueue(fm->wq);
+
+	tifm_7xx1_remove_media(&fm->media_remover);
+
+	pci_set_power_state(dev, PCI_D3hot);
+        pci_disable_device(dev);
+        pci_save_state(dev);
+	return 0;
+}
+
+static int tifm_7xx1_resume(struct pci_dev *dev)
+{
+	struct tifm_adapter *fm = pci_get_drvdata(dev);
+	unsigned long flags;
+
+	pci_restore_state(dev);
+        pci_enable_device(dev);
+        pci_set_power_state(dev, PCI_D0);
+        pci_set_master(dev);
+
+	spin_lock_irqsave(&fm->lock, flags);
+	fm->inhibit_new_cards = 0;
+	writel(TIFM_IRQ_SETALL, fm->addr + FM_INTERRUPT_STATUS);
+	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+	writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SETALLSOCK,
+		fm->addr + FM_SET_INTERRUPT_ENABLE);
+	fm->insert_mask = 0xf;
+	spin_unlock_irqrestore(&fm->lock, flags);
+	return 0;
+}
+
+static int tifm_7xx1_probe(struct pci_dev *dev,
+			const struct pci_device_id *dev_id)
+{
+	struct tifm_adapter *fm;
+	int pci_dev_busy = 0;
+	int rc;
+
+	rc = pci_set_dma_mask(dev, DMA_32BIT_MASK);
+	if (rc)
+		return rc;
+
+	rc = pci_enable_device(dev);
+	if (rc)
+		return rc;
+
+	pci_set_master(dev);
+
+	rc = pci_request_regions(dev, DRIVER_NAME);
+	if (rc) {
+		pci_dev_busy = 1;
+		goto err_out;
+	}
+
+	pci_intx(dev, 1);
+
+	fm = tifm_alloc_adapter();
+	if (!fm) {
+		rc = -ENOMEM;
+		goto err_out_int;
+	}
+
+	fm->dev = &dev->dev;
+	fm->max_sockets = (dev->device == 0x803B) ? 2 : 4;
+	fm->sockets = kzalloc(sizeof(struct tifm_dev*) * fm->max_sockets,
+				GFP_KERNEL);
+	if (!fm->sockets)
+		goto err_out_free;
+
+	INIT_WORK(&fm->media_inserter, tifm_7xx1_insert_media);
+	INIT_WORK(&fm->media_remover, tifm_7xx1_remove_media);
+	fm->eject = tifm_7xx1_eject;
+	pci_set_drvdata(dev, fm);
+
+	fm->addr = ioremap(pci_resource_start(dev, 0),
+				pci_resource_len(dev, 0));
+	if (!fm->addr)
+		goto err_out_free;
+
+	rc = request_irq(dev->irq, tifm_7xx1_isr, SA_SHIRQ, DRIVER_NAME, fm);
+	if (rc)
+		goto err_out_unmap;
+
+	rc = tifm_add_adapter(fm);
+	if (rc)
+		goto err_out_irq;
+
+	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+	writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SETALLSOCK,
+		fm->addr + FM_SET_INTERRUPT_ENABLE);
+
+	fm->insert_mask = 0xf;
+
+	return 0;
+
+err_out_irq:
+	free_irq(dev->irq, fm);
+err_out_unmap:
+	iounmap(fm->addr);
+err_out_free:
+	pci_set_drvdata(dev, NULL);
+	tifm_free_adapter(fm);
+err_out_int:
+	pci_intx(dev, 0);
+	pci_release_regions(dev);
+err_out:
+	if (!pci_dev_busy)
+		pci_disable_device(dev);
+	return rc;
+}
+
+static void tifm_7xx1_remove(struct pci_dev *dev)
+{
+	struct tifm_adapter *fm = pci_get_drvdata(dev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&fm->lock, flags);
+	fm->inhibit_new_cards = 1;
+	fm->remove_mask = 0xf;
+	fm->insert_mask = 0;
+	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+	spin_unlock_irqrestore(&fm->lock, flags);
+
+	flush_workqueue(fm->wq);
+
+	tifm_7xx1_remove_media(&fm->media_remover);
+
+	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
+	free_irq(dev->irq, fm);
+
+	tifm_remove_adapter(fm);
+
+	pci_set_drvdata(dev, NULL);
+
+	iounmap(fm->addr);
+	pci_intx(dev, 0);
+	pci_release_regions(dev);
+
+	pci_disable_device(dev);
+	tifm_free_adapter(fm);
+}
+
+static struct pci_device_id tifm_7xx1_pci_tbl [] = {
+	{ PCI_VENDOR_ID_TI, 0x8033, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+	  0 }, /* xx21 - the one I have */
+        { PCI_VENDOR_ID_TI, 0x803B, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+	  0 }, /* xx12 - should be also supported */
+	{ }
+};
+
+static struct pci_driver tifm_7xx1_driver = {
+	.name = DRIVER_NAME,
+	.id_table = tifm_7xx1_pci_tbl,
+	.probe = tifm_7xx1_probe,
+	.remove = tifm_7xx1_remove,
+	.suspend = tifm_7xx1_suspend,
+	.resume = tifm_7xx1_resume,
+};
+
+static int __init tifm_7xx1_init(void)
+{
+	return pci_register_driver(&tifm_7xx1_driver);
+}
+
+static void __exit tifm_7xx1_exit(void)
+{
+	pci_unregister_driver(&tifm_7xx1_driver);
+}
+
+MODULE_AUTHOR("Alex Dubov");
+MODULE_DESCRIPTION("TI FlashMedia host driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl);
+MODULE_VERSION(DRIVER_VERSION);
+
+module_init(tifm_7xx1_init);
+module_exit(tifm_7xx1_exit);
diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
new file mode 100644
index 0000000..d61df5c
--- /dev/null
+++ b/drivers/misc/tifm_core.c
@@ -0,0 +1,273 @@
+/*
+ *  tifm_core.c - TI FlashMedia driver
+ *
+ *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/tifm.h>
+#include <linux/init.h>
+#include <linux/idr.h>
+
+#define DRIVER_NAME "tifm_core"
+#define DRIVER_VERSION "0.6"
+
+static DEFINE_IDR(tifm_adapter_idr);
+static DEFINE_SPINLOCK(tifm_adapter_lock);
+
+static tifm_media_id *tifm_device_match(tifm_media_id *ids,
+			struct tifm_dev *dev)
+{
+	while (*ids) {
+		if (dev->media_id == *ids)
+			return ids;
+		ids++;
+	}
+	return NULL;
+}
+
+static int tifm_match(struct device *dev, struct device_driver *drv)
+{
+	struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *fm_drv;
+
+	fm_drv = container_of(drv, struct tifm_driver, driver);
+	if (!fm_drv->id_table)
+		return -EINVAL;
+	if (tifm_device_match(fm_drv->id_table, fm_dev))
+		return 1;
+	return -ENODEV;
+}
+
+static int tifm_uevent(struct device *dev, char **envp, int num_envp,
+		       char *buffer, int buffer_size)
+{
+	struct tifm_dev *fm_dev;
+	int i = 0;
+	int length = 0;
+	const char *card_type_name[] = {"INV", "SM", "MS", "SD"};
+
+	if (!dev || !(fm_dev = container_of(dev, struct tifm_dev, dev)))
+		return -ENODEV;
+	if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+			"TIFM_CARD_TYPE=%s", card_type_name[fm_dev->media_id]))
+		return -ENOMEM;
+
+	return 0;
+}
+
+static struct bus_type tifm_bus_type = {
+	.name    = "tifm",
+	.match   = tifm_match,
+	.uevent  = tifm_uevent,
+};
+
+static void tifm_free(struct class_device *cdev)
+{
+	struct tifm_adapter *fm = container_of(cdev, struct tifm_adapter, cdev);
+
+	kfree(fm->sockets);
+	if (fm->wq)
+		destroy_workqueue(fm->wq);
+	kfree(fm);
+}
+
+static struct class tifm_adapter_class = {
+	.name    = "tifm_adapter",
+	.release = tifm_free
+};
+
+struct tifm_adapter *tifm_alloc_adapter(void)
+{
+	struct tifm_adapter *fm;
+
+	fm = kzalloc(sizeof(struct tifm_adapter), GFP_KERNEL);
+	if (fm) {
+		fm->cdev.class = &tifm_adapter_class;
+		spin_lock_init(&fm->lock);
+		class_device_initialize(&fm->cdev);
+	}
+	return fm;
+}
+EXPORT_SYMBOL(tifm_alloc_adapter);
+
+void tifm_free_adapter(struct tifm_adapter *fm)
+{
+	class_device_put(&fm->cdev);
+}
+EXPORT_SYMBOL(tifm_free_adapter);
+
+int tifm_add_adapter(struct tifm_adapter *fm)
+{
+	int rc;
+
+	if (!idr_pre_get(&tifm_adapter_idr, GFP_KERNEL))
+		return -ENOMEM;
+
+	spin_lock(&tifm_adapter_lock);
+	rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id);
+	spin_unlock(&tifm_adapter_lock);
+	if (!rc) {
+		snprintf(fm->cdev.class_id, BUS_ID_SIZE, "tifm%u", fm->id);
+		strncpy(fm->wq_name, fm->cdev.class_id, KOBJ_NAME_LEN);
+
+		fm->wq = create_singlethread_workqueue(fm->wq_name);
+		if (fm->wq)
+			return class_device_add(&fm->cdev);
+
+		spin_lock(&tifm_adapter_lock);
+		idr_remove(&tifm_adapter_idr, fm->id);
+		spin_unlock(&tifm_adapter_lock);
+		rc = -ENOMEM;
+	}
+	return rc;
+}
+EXPORT_SYMBOL(tifm_add_adapter);
+
+void tifm_remove_adapter(struct tifm_adapter *fm)
+{
+	class_device_del(&fm->cdev);
+
+	spin_lock(&tifm_adapter_lock);
+	idr_remove(&tifm_adapter_idr, fm->id);
+	spin_unlock(&tifm_adapter_lock);
+}
+EXPORT_SYMBOL(tifm_remove_adapter);
+
+void tifm_free_device(struct device *dev)
+{
+	struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
+	if (fm_dev->wq)
+		destroy_workqueue(fm_dev->wq);
+	kfree(fm_dev);
+}
+EXPORT_SYMBOL(tifm_free_device);
+
+struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id)
+{
+	struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
+
+	if (dev) {
+		spin_lock_init(&dev->lock);
+		snprintf(dev->wq_name, KOBJ_NAME_LEN, "tifm%u:%u", fm->id, id);
+		dev->wq = create_singlethread_workqueue(dev->wq_name);
+		if (!dev->wq) {
+			kfree(dev);
+			return NULL;
+		}
+		dev->dev.parent = fm->dev;
+		dev->dev.bus = &tifm_bus_type;
+		dev->dev.release = tifm_free_device;
+	}
+	return dev;
+}
+EXPORT_SYMBOL(tifm_alloc_device);
+
+void tifm_eject(struct tifm_dev *sock)
+{
+	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
+	fm->eject(fm, sock);
+}
+EXPORT_SYMBOL(tifm_eject);
+
+int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
+		int direction)
+{
+	return pci_map_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
+}
+EXPORT_SYMBOL(tifm_map_sg);
+
+void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
+		   int direction)
+{
+	pci_unmap_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
+}
+EXPORT_SYMBOL(tifm_unmap_sg);
+
+static int tifm_device_probe(struct device *dev)
+{
+	struct tifm_driver *drv;
+	struct tifm_dev *fm_dev;
+	int rc = 0;
+	const tifm_media_id *id;
+
+	drv = container_of(dev->driver, struct tifm_driver, driver);
+	fm_dev = container_of(dev, struct tifm_dev, dev);
+	get_device(dev);
+	if (!fm_dev->drv && drv->probe && drv->id_table) {
+		rc = -ENODEV;
+		id = tifm_device_match(drv->id_table, fm_dev);
+		if (id)
+			rc = drv->probe(fm_dev);
+		if (rc >= 0) {
+			rc = 0;
+			fm_dev->drv = drv;
+		}
+	}
+	if (rc)
+		put_device(dev);
+	return rc;
+}
+
+static int tifm_device_remove(struct device *dev)
+{
+	struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
+	struct tifm_driver *drv = fm_dev->drv;
+
+	if (drv) {
+		if (drv->remove)
+			drv->remove(fm_dev);
+		fm_dev->drv = NULL;
+	}
+
+	put_device(dev);
+	return 0;
+}
+
+int tifm_register_driver(struct tifm_driver *drv)
+{
+	drv->driver.bus = &tifm_bus_type;
+	drv->driver.probe = tifm_device_probe;
+	drv->driver.remove = tifm_device_remove;
+
+	return driver_register(&drv->driver);
+}
+EXPORT_SYMBOL(tifm_register_driver);
+
+void tifm_unregister_driver(struct tifm_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL(tifm_unregister_driver);
+
+static int __init tifm_init(void)
+{
+	int rc = bus_register(&tifm_bus_type);
+
+	if (!rc) {
+		rc = class_register(&tifm_adapter_class);
+		if (rc)
+			bus_unregister(&tifm_bus_type);
+	}
+
+	return rc;
+}
+
+static void __exit tifm_exit(void)
+{
+	class_unregister(&tifm_adapter_class);
+	bus_unregister(&tifm_bus_type);
+}
+
+subsys_initcall(tifm_init);
+module_exit(tifm_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alex Dubov");
+MODULE_DESCRIPTION("TI FlashMedia core driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRIVER_VERSION);