Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (105 commits)
  sonypi: use mutex instead of semaphore
  sony-laptop: remove user visible camera controls as platform attributes
  meye: make meye use sony-laptop instead of sonypi
  sony-laptop: add a meye-usable include file for camera ops
  sony-laptop: complete the motion eye camera support in sony-laptop
  sonypi: try to detect if sony-laptop has already taken one of the known ioports
  sonypi: suggest sonypi users to try sony-laptop instead
  sony-laptop: add edge modem support (also called WWAN)
  sony-laptop: add locking on accesses to the ioport and global vars
  sony-laptop: add camera enable/disable parameter, better handle possible infinite loop
  thinkpad-acpi: make drivers/misc/thinkpad_acpi:fan_mutex static
  ACPI: thinkpad-acpi: add sysfs support to wan and bluetooth subdrivers
  ACPI: thinkpad-acpi: add sysfs support to hotkey subdriver
  ACPI: thinkpad-acpi: improve dock subdriver initialization
  ACPI: thinkpad-acpi: improve debugging for acpi helpers
  ACPI: thinkpad-acpi: improve fan control documentation
  ACPI: thinkpad-acpi: map ENXIO to EINVAL for fan sysfs
  ACPI: thinkpad-acpi: fix a fan watchdog invocation
  ACPI: thinkpad-acpi: do not arm fan watchdog if it would not work
  ACPI: thinkpad-acpi: add a fan-control feature master toggle
  ...

Documentation/kernel-parameters.txt

@@ -181,19 +181,41 @@ and is between 256 and 4096 characters. It is defined in the file
 			that require a timer override, but don't have
 			HPET
 
-	acpi_dbg_layer=	[HW,ACPI]
+	acpi.debug_layer=	[HW,ACPI]
 			Format: <int>
 			Each bit of the <int> indicates an ACPI debug layer,
 			1: enable, 0: disable. It is useful for boot time
 			debugging. After system has booted up, it can be set
-			via /proc/acpi/debug_layer.
-
-	acpi_dbg_level=	[HW,ACPI]
+			via /sys/module/acpi/parameters/debug_layer.
+			CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
+			Available bits (add the numbers together) to enable debug output
+			for specific parts of the ACPI subsystem:
+			0x01 utilities 0x02 hardware 0x04 events 0x08 tables
+			0x10 namespace 0x20 parser 0x40 dispatcher
+			0x80 executer 0x100 resources 0x200 acpica debugger
+			0x400 os services 0x800 acpica disassembler.
+			The number can be in decimal or prefixed with 0x in hex.
+			Warning: Many of these options can produce a lot of
+			output and make your system unusable. Be very careful.
+
+	acpi.debug_level=	[HW,ACPI]
 			Format: <int>
 			Each bit of the <int> indicates an ACPI debug level,
 			1: enable, 0: disable. It is useful for boot time
 			debugging. After system has booted up, it can be set
-			via /proc/acpi/debug_level.
+			via /sys/module/acpi/parameters/debug_level.
+			CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
+			Available bits (add the numbers together) to enable different
+			debug output levels of the ACPI subsystem:
+			0x01 error 0x02 warn 0x04 init 0x08 debug object
+			0x10 info 0x20 init names 0x40 parse 0x80 load
+			0x100 dispatch 0x200 execute 0x400 names 0x800 operation region
+			0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects
+			0x10000 resources 0x20000 user requests 0x40000 package.
+			The number can be in decimal or prefixed with 0x in hex.
+			Warning: Many of these options can produce a lot of
+			output and make your system unusable. Be very careful.
+
 
 	acpi_fake_ecdt	[HW,ACPI] Workaround failure due to BIOS lacking ECDT
 

Documentation/sony-laptop.txt

@@ -3,12 +3,18 @@ Sony Notebook Control Driver (SNC) Readme
 	Copyright (C) 2004- 2005 Stelian Pop <stelian@popies.net>
 	Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
 
-This mini-driver drives the SNC device present in the ACPI BIOS of
-the Sony Vaio laptops.
+This mini-driver drives the SNC and SPIC device present in the ACPI BIOS of the
+Sony Vaio laptops. This driver mixes both devices functions under the same
+(hopefully consistent) interface. This also means that the sonypi driver is
+obsoleted by sony-laptop now.
 
-It gives access to some extra laptop functionalities. In its current
-form, this driver let the user set or query the screen brightness
-through the backlight subsystem and remove/apply power to some devices.
+Fn keys (hotkeys):
+------------------
+Some models report hotkeys through the SNC or SPIC devices, such events are
+reported both through the ACPI subsystem as acpi events and through the INPUT
+subsystem. See the logs of acpid or /proc/acpi/event and
+/proc/bus/input/devices to find out what those events are and which input
+devices are created by the driver.
 
 Backlight control:
 ------------------
@@ -39,6 +45,8 @@ The files are:
 	audiopower		power on/off the internal sound card
 	lanpower		power on/off the internal ethernet card
 				(only in debug mode)
+	bluetoothpower		power on/off the internal bluetooth device
+	fanspeed		get/set the fan speed
 
 Note that some files may be missing if they are not supported
 by your particular laptop model.
@@ -76,9 +84,9 @@ The sony-laptop driver creates, for some of those methods (the most
 current ones found on several Vaio models), an entry under
 /sys/devices/platform/sony-laptop, just like the 'cdpower' one.
 You can create other entries corresponding to your own laptop methods by
-further editing the source (see the 'sony_acpi_values' table, and add a new
+further editing the source (see the 'sony_nc_values' table, and add a new
 entry to this table with your get/set method names using the
-HANDLE_NAMES macro).
+SNC_HANDLE_NAMES macro).
 
 Your mission, should you accept it, is to try finding out what
 those entries are for, by reading/writing random values from/to those
@@ -87,6 +95,9 @@ files and find out what is the impact on your laptop.
 Should you find anything interesting, please report it back to me,
 I will not disavow all knowledge of your actions :)
 
+See also http://www.linux.it/~malattia/wiki/index.php/Sony_drivers for other
+useful info.
+
 Bugs/Limitations:
 -----------------
 

Documentation/video4linux/meye.txt

@@ -5,10 +5,9 @@ Vaio Picturebook Motion Eye Camera Driver Readme
 	Copyright (C) 2000 Andrew Tridgell <tridge@samba.org>
 
 This driver enable the use of video4linux compatible applications with the
-Motion Eye camera. This driver requires the "Sony Vaio Programmable I/O
-Control Device" driver (which can be found in the "Character drivers"
-section of the kernel configuration utility) to be compiled and installed
-(using its "camera=1" parameter).
+Motion Eye camera. This driver requires the "Sony Laptop Extras" driver (which
+can be found in the "Misc devices" section of the kernel configuration utility)
+to be compiled and installed (using its "camera=1" parameter).
 
 It can do at maximum 30 fps @ 320x240 or 15 fps @ 640x480.
 

MAINTAINERS

@@ -1658,15 +1658,6 @@ W:	http://www.ia64-linux.org/
 T:	git kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
 S:	Maintained
 
-IBM ACPI EXTRAS DRIVER
-P:	Henrique de Moraes Holschuh
-M:	ibm-acpi@hmh.eng.br
-L:	ibm-acpi-devel@lists.sourceforge.net
-W:	http://ibm-acpi.sourceforge.net
-W:	http://thinkwiki.org/wiki/Ibm-acpi
-T:	git repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
-S:	Maintained
-
 SN-IA64 (Itanium) SUB-PLATFORM
 P:	Jes Sorensen
 M:	jes@sgi.com
@@ -3166,6 +3157,15 @@ P:	Chris Zankel
 M:	chris@zankel.net
 S:	Maintained
 
+THINKPAD ACPI EXTRAS DRIVER
+P:	Henrique de Moraes Holschuh
+M:	ibm-acpi@hmh.eng.br
+L:	ibm-acpi-devel@lists.sourceforge.net
+W:	http://ibm-acpi.sourceforge.net
+W:	http://thinkwiki.org/wiki/Ibm-acpi
+T:	git repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
+S:	Maintained
+
 UltraSPARC (sparc64):
 P:	David S. Miller
 M:	davem@davemloft.net

arch/i386/kernel/acpi/earlyquirk.c

@@ -23,10 +23,13 @@ static int __init nvidia_hpet_check(struct acpi_table_header *header)
 static int __init check_bridge(int vendor, int device)
 {
 #ifdef CONFIG_ACPI
+	static int warned;
 	/* According to Nvidia all timer overrides are bogus unless HPET
 	   is enabled. */
 	if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
-		if (acpi_table_parse(ACPI_SIG_HPET, nvidia_hpet_check)) {
+		if (!warned && acpi_table_parse(ACPI_SIG_HPET,
+						nvidia_hpet_check)) {
+			warned = 1;
 			acpi_skip_timer_override = 1;
 			  printk(KERN_INFO "Nvidia board "
                        "detected. Ignoring ACPI "

drivers/acpi/Kconfig

@@ -85,8 +85,8 @@ config ACPI_PROCFS
 	depends on ACPI
 	default y
 	---help---
-	  Procfs interface for ACPI is made optional for back-compatible.
-	  As the same functions are duplicated in sysfs interface
+	  The Procfs interface for ACPI is made optional for backward compatibility.
+	  As the same functions are duplicated in the sysfs interface
 	  and this proc interface will be removed some time later,
 	  it's marked as deprecated.
 	  ( /proc/acpi/debug_layer && debug_level are deprecated by
@@ -218,43 +218,6 @@ config ACPI_ASUS
 	  NOTE: This driver is deprecated and will probably be removed soon,
 	  use asus-laptop instead.
 
-config ACPI_IBM
-	tristate "IBM ThinkPad Laptop Extras"
-	depends on X86
-	select BACKLIGHT_CLASS_DEVICE
-	---help---
-	  This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
-	  support for Fn-Fx key combinations, Bluetooth control, video
-	  output switching, ThinkLight control, UltraBay eject and more.
-	  For more information about this driver see <file:Documentation/ibm-acpi.txt>
-	  and <http://ibm-acpi.sf.net/> .
-
-	  If you have an IBM ThinkPad laptop, say Y or M here.
-
-config ACPI_IBM_DOCK
-	bool "Legacy Docking Station Support"
-	depends on ACPI_IBM
-	depends on ACPI_DOCK=n
-	default n
-	---help---
-	  Allows the ibm_acpi driver to handle docking station events.
-	  This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI.  It will
-	  allow locking and removing the laptop from the docking station,
-	  but will not properly connect PCI devices.
-
-	  If you are not sure, say N here.
-
-config ACPI_IBM_BAY
-	bool "Legacy Removable Bay Support"
-	depends on ACPI_IBM
-	default y
-	---help---
-	  Allows the ibm_acpi driver to handle removable bays.  It will allow
-	  disabling the device in the bay, and also generate notifications when
-	  the bay lever is ejected or inserted.
-
-	  If you are not sure, say Y here.
-
 config ACPI_TOSHIBA
 	tristate "Toshiba Laptop Extras"
 	depends on X86
@@ -388,11 +351,10 @@ config ACPI_HOTPLUG_MEMORY
 
 config ACPI_SBS
 	tristate "Smart Battery System (EXPERIMENTAL)"
-	depends on X86 && I2C
+	depends on X86
 	depends on EXPERIMENTAL
 	help
 	  This driver adds support for the Smart Battery System.
-	  Depends on I2C (Device Drivers ---> I2C support)
 	  A "Smart Battery" is quite old and quite rare compared
 	  to today's ACPI "Control Method" battery.
 

drivers/acpi/Makefile

 #
 # Makefile for the Linux ACPI interpreter
-# 
+#
 
 export ACPI_CFLAGS
 
@@ -32,16 +32,17 @@ obj-y				+= osl.o utils.o \
 processor-objs	+= processor_core.o processor_throttling.o \
 				processor_idle.o processor_thermal.o
 ifdef CONFIG_CPU_FREQ
-processor-objs	+= processor_perflib.o			
+processor-objs	+= processor_perflib.o
 endif
 
 obj-y				+= sleep/
 obj-y				+= bus.o glue.o
 obj-y				+= scan.o
+# Keep EC driver first. Initialization of others depend on it.
+obj-$(CONFIG_ACPI_EC)		+= ec.o
 obj-$(CONFIG_ACPI_AC) 		+= ac.o
 obj-$(CONFIG_ACPI_BATTERY)	+= battery.o
 obj-$(CONFIG_ACPI_BUTTON)	+= button.o
-obj-$(CONFIG_ACPI_EC)		+= ec.o
 obj-$(CONFIG_ACPI_FAN)		+= fan.o
 obj-$(CONFIG_ACPI_DOCK)		+= dock.o
 obj-$(CONFIG_ACPI_BAY)		+= bay.o
@@ -55,8 +56,7 @@ obj-$(CONFIG_ACPI_SYSTEM)	+= system.o event.o
 obj-$(CONFIG_ACPI_DEBUG)	+= debug.o
 obj-$(CONFIG_ACPI_NUMA)		+= numa.o
 obj-$(CONFIG_ACPI_ASUS)		+= asus_acpi.o
-obj-$(CONFIG_ACPI_IBM)		+= ibm_acpi.o
 obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 obj-$(CONFIG_ACPI_HOTPLUG_MEMORY)	+= acpi_memhotplug.o
 obj-y				+= cm_sbs.o
-obj-$(CONFIG_ACPI_SBS)		+= i2c_ec.o sbs.o
+obj-$(CONFIG_ACPI_SBS)		+= sbs.o

drivers/acpi/acpi_memhotplug.c

@@ -44,11 +44,6 @@ MODULE_AUTHOR("Naveen B S <naveen.b.s@intel.com>");
 MODULE_DESCRIPTION("Hotplug Mem Driver");
 MODULE_LICENSE("GPL");
 
-/* ACPI _STA method values */
-#define ACPI_MEMORY_STA_PRESENT		(0x00000001UL)
-#define ACPI_MEMORY_STA_ENABLED		(0x00000002UL)
-#define ACPI_MEMORY_STA_FUNCTIONAL	(0x00000008UL)
-
 /* Memory Device States */
 #define MEMORY_INVALID_STATE	0
 #define MEMORY_POWER_ON_STATE	1
@@ -204,9 +199,9 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
 	 * Check for device status. Device should be
 	 * present/enabled/functioning.
 	 */
-	if (!((current_status & ACPI_MEMORY_STA_PRESENT)
-	      && (current_status & ACPI_MEMORY_STA_ENABLED)
-	      && (current_status & ACPI_MEMORY_STA_FUNCTIONAL)))
+	if (!((current_status & ACPI_STA_DEVICE_PRESENT)
+	      && (current_status & ACPI_STA_DEVICE_ENABLED)
+	      && (current_status & ACPI_STA_DEVICE_FUNCTIONING)))
 		return -ENODEV;
 
 	return 0;
@@ -286,7 +281,7 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
 		return -ENODEV;
 
 	/* Check for device status.  Device should be disabled */
-	if (current_status & ACPI_MEMORY_STA_ENABLED)
+	if (current_status & ACPI_STA_DEVICE_ENABLED)
 		return -EINVAL;
 
 	return 0;

drivers/acpi/bus.c

@@ -103,7 +103,9 @@ int acpi_bus_get_status(struct acpi_device *device)
 	else if (device->parent)
 		device->status = device->parent->status;
 	else
-		STRUCT_TO_INT(device->status) = 0x0F;
+		STRUCT_TO_INT(device->status) =
+		    ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
+		    ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING;
 
 	if (device->status.functional && !device->status.present) {
 		printk(KERN_WARNING PREFIX "Device [%s] status [%08x]: "

drivers/acpi/container.c

@@ -49,8 +49,6 @@ MODULE_AUTHOR("Anil S Keshavamurthy");
 MODULE_DESCRIPTION("ACPI container driver");
 MODULE_LICENSE("GPL");
 
-#define ACPI_STA_PRESENT		(0x00000001)
-
 static int acpi_container_add(struct acpi_device *device);
 static int acpi_container_remove(struct acpi_device *device, int type);
 
@@ -75,13 +73,13 @@ static int is_device_present(acpi_handle handle)
 
 	status = acpi_get_handle(handle, "_STA", &temp);
 	if (ACPI_FAILURE(status))
-		return 1;	/* _STA not found, assmue device present */
+		return 1;	/* _STA not found, assume device present */
 
 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
 	if (ACPI_FAILURE(status))
 		return 0;	/* Firmware error */
 
-	return ((sta & ACPI_STA_PRESENT) == ACPI_STA_PRESENT);
+	return ((sta & ACPI_STA_DEVICE_PRESENT) == ACPI_STA_DEVICE_PRESENT);
 }
 
 /*******************************************************************/

drivers/acpi/dock.c

@@ -29,6 +29,7 @@
 #include <linux/notifier.h>
 #include <linux/platform_device.h>
 #include <linux/jiffies.h>
+#include <linux/stddef.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
@@ -667,6 +668,23 @@ static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
 }
 DEVICE_ATTR(undock, S_IWUSR, NULL, write_undock);
 
+/*
+ * show_dock_uid - read method for "uid" file in sysfs
+ */
+static ssize_t show_dock_uid(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	unsigned long lbuf;
+	acpi_status status = acpi_evaluate_integer(dock_station->handle, "_UID", NULL, &lbuf);
+	if(ACPI_FAILURE(status)) {
+	    return 0;
+	}
+	return snprintf(buf, PAGE_SIZE, "%lx\n", lbuf);
+}
+DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
+
+
+
 /**
  * dock_add - add a new dock station
  * @handle: the dock station handle
@@ -715,6 +733,13 @@ static int dock_add(acpi_handle handle)
 		kfree(dock_station);
 		return ret;
 	}
+	ret = device_create_file(&dock_device.dev, &dev_attr_uid);
+	if (ret) {
+		printk("Error %d adding sysfs file\n", ret);
+		platform_device_unregister(&dock_device);
+		kfree(dock_station);
+		return ret;
+	}
 
 	/* Find dependent devices */
 	acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,

drivers/acpi/ec.c

 /*
- *  acpi_ec.c - ACPI Embedded Controller Driver ($Revision: 38 $)
+ *  ec.c - ACPI Embedded Controller Driver (v2.0)
  *
+ *  Copyright (C) 2006, 2007 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
+ *  Copyright (C) 2006 Denis Sadykov <denis.m.sadykov@intel.com>
  *  Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
  *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
@@ -91,9 +93,9 @@ static struct acpi_driver acpi_ec_driver = {
 };
 
 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
+/* External interfaces use first EC only, so remember */
 static struct acpi_ec {
 	acpi_handle handle;
-	unsigned long uid;
 	unsigned long gpe;
 	unsigned long command_addr;
 	unsigned long data_addr;
@@ -101,12 +103,8 @@ static struct acpi_ec {
 	struct mutex lock;
 	atomic_t query_pending;
 	atomic_t event_count;
-	atomic_t leaving_burst;	/* 0 : No, 1 : Yes, 2: abort */
 	wait_queue_head_t wait;
-} *ec_ecdt;
-
-/* External interfaces use first EC only, so remember */
-static struct acpi_device *first_ec;
+} *boot_ec, *first_ec;
 
 /* --------------------------------------------------------------------------
                              Transaction Management
@@ -173,56 +171,6 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
 	return -ETIME;
 }
 
-#ifdef ACPI_FUTURE_USAGE
-/*
- * Note: samsung nv5000 doesn't work with ec burst mode.
- * http://bugzilla.kernel.org/show_bug.cgi?id=4980
- */
-int acpi_ec_enter_burst_mode(struct acpi_ec *ec)
-{
-	u8 tmp = 0;
-	u8 status = 0;
-
-	status = acpi_ec_read_status(ec);
-	if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
-		status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0);
-		if (status)
-			goto end;
-		acpi_ec_write_cmd(ec, ACPI_EC_BURST_ENABLE);
-		status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1);
-		tmp = acpi_ec_read_data(ec);
-		if (tmp != 0x90) {	/* Burst ACK byte */
-			return -EINVAL;
-		}
-	}
-
-	atomic_set(&ec->leaving_burst, 0);
-	return 0;
-      end:
-	ACPI_EXCEPTION((AE_INFO, status, "EC wait, burst mode"));
-	return -1;
-}
-
-int acpi_ec_leave_burst_mode(struct acpi_ec *ec)
-{
-	u8 status = 0;
-
-	status = acpi_ec_read_status(ec);
-	if (status != -EINVAL && (status & ACPI_EC_FLAG_BURST)) {
-		status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0);
-		if (status)
-			goto end;
-		acpi_ec_write_cmd(ec, ACPI_EC_BURST_DISABLE);
-		acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0);
-	}
-	atomic_set(&ec->leaving_burst, 1);
-	return 0;
-      end:
-	ACPI_EXCEPTION((AE_INFO, status, "EC leave burst mode"));
-	return -1;
-}
-#endif				/* ACPI_FUTURE_USAGE */
-
 static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 					const u8 * wdata, unsigned wdata_len,
 					u8 * rdata, unsigned rdata_len)
@@ -312,6 +260,21 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 	return status;
 }
 
+/*
+ * Note: samsung nv5000 doesn't work with ec burst mode.
+ * http://bugzilla.kernel.org/show_bug.cgi?id=4980
+ */
+int acpi_ec_burst_enable(struct acpi_ec *ec)
+{
+	u8 d;
+	return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1);
+}
+
+int acpi_ec_burst_disable(struct acpi_ec *ec)
+{
+	return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0);
+}
+
 static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
 {
 	int result;
@@ -333,18 +296,33 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 /*
  * Externally callable EC access functions. For now, assume 1 EC only
  */
+int ec_burst_enable(void)
+{
+	if (!first_ec)
+		return -ENODEV;
+	return acpi_ec_burst_enable(first_ec);
+}
+
+EXPORT_SYMBOL(ec_burst_enable);
+
+int ec_burst_disable(void)
+{
+	if (!first_ec)
+		return -ENODEV;
+	return acpi_ec_burst_disable(first_ec);
+}
+
+EXPORT_SYMBOL(ec_burst_disable);
+
 int ec_read(u8 addr, u8 * val)
 {
-	struct acpi_ec *ec;
 	int err;
 	u8 temp_data;
 
 	if (!first_ec)
 		return -ENODEV;
 
-	ec = acpi_driver_data(first_ec);
-
-	err = acpi_ec_read(ec, addr, &temp_data);
+	err = acpi_ec_read(first_ec, addr, &temp_data);
 
 	if (!err) {
 		*val = temp_data;
@@ -357,15 +335,12 @@ EXPORT_SYMBOL(ec_read);
 
 int ec_write(u8 addr, u8 val)
 {
-	struct acpi_ec *ec;
 	int err;
 
 	if (!first_ec)
 		return -ENODEV;
 
-	ec = acpi_driver_data(first_ec);
-
-	err = acpi_ec_write(ec, addr, val);
+	err = acpi_ec_write(first_ec, addr, val);
 
 	return err;
 }
@@ -376,14 +351,10 @@ int ec_transaction(u8 command,
 		   const u8 * wdata, unsigned wdata_len,
 		   u8 * rdata, unsigned rdata_len)
 {
-	struct acpi_ec *ec;
-
 	if (!first_ec)
 		return -ENODEV;
 
-	ec = acpi_driver_data(first_ec);
-
-	return acpi_ec_transaction(ec, command, wdata,
+	return acpi_ec_transaction(first_ec, command, wdata,
 				   wdata_len, rdata, rdata_len);
 }
 
@@ -420,7 +391,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
 
 static void acpi_ec_gpe_query(void *ec_cxt)
 {
-	struct acpi_ec *ec = (struct acpi_ec *)ec_cxt;
+	struct acpi_ec *ec = ec_cxt;
 	u8 value = 0;
 	char object_name[8];
 
@@ -438,8 +409,9 @@ static u32 acpi_ec_gpe_handler(void *data)
 {
 	acpi_status status = AE_OK;
 	u8 value;
-	struct acpi_ec *ec = (struct acpi_ec *)data;
+	struct acpi_ec *ec = data;
 	atomic_inc(&ec->event_count);
+
 	if (acpi_ec_mode == EC_INTR) {
 		wake_up(&ec->wait);
 	}
@@ -482,7 +454,7 @@ acpi_ec_space_handler(u32 function,
 		      void *handler_context, void *region_context)
 {
 	int result = 0;
-	struct acpi_ec *ec = NULL;
+	struct acpi_ec *ec = handler_context;
 	u64 temp = *value;
 	acpi_integer f_v = 0;
 	int i = 0;
@@ -494,8 +466,6 @@ acpi_ec_space_handler(u32 function,
 		return AE_BAD_PARAMETER;
 	}
 
-	ec = (struct acpi_ec *)handler_context;
-
       next_byte:
 	switch (function) {
 	case ACPI_READ:
@@ -551,18 +521,16 @@ static struct proc_dir_entry *acpi_ec_dir;
 
 static int acpi_ec_read_info(struct seq_file *seq, void *offset)
 {
-	struct acpi_ec *ec = (struct acpi_ec *)seq->private;
+	struct acpi_ec *ec = seq->private;
 
 	if (!ec)
 		goto end;
 
-	seq_printf(seq, "gpe:                 0x%02x\n", (u32) ec->gpe);
-	seq_printf(seq, "ports:                   0x%02x, 0x%02x\n",
-		   (u32) ec->command_addr, (u32) ec->data_addr);
-	seq_printf(seq, "use global lock:         %s\n",
+	seq_printf(seq, "gpe:\t\t\t0x%02x\n", (u32) ec->gpe);
+	seq_printf(seq, "ports:\t\t\t0x%02x, 0x%02x\n",
+		   (unsigned)ec->command_addr, (unsigned)ec->data_addr);
+	seq_printf(seq, "use global lock:\t%s\n",
 		   ec->global_lock ? "yes" : "no");
-	acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
-
       end:
 	return 0;
 }
@@ -619,154 +587,122 @@ static int acpi_ec_remove_fs(struct acpi_device *device)
 /* --------------------------------------------------------------------------
                                Driver Interface
    -------------------------------------------------------------------------- */
+static acpi_status
+ec_parse_io_ports(struct acpi_resource *resource, void *context);
+
+static acpi_status
+ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval);
+
+static struct acpi_ec *make_acpi_ec(void)
+{
+	struct acpi_ec *ec = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
+	if (!ec)
+		return NULL;
+
+	atomic_set(&ec->query_pending, 1);
+	atomic_set(&ec->event_count, 1);
+	mutex_init(&ec->lock);
+	init_waitqueue_head(&ec->wait);
+
+	return ec;
+}
 
 static int acpi_ec_add(struct acpi_device *device)
 {
-	int result = 0;
 	acpi_status status = AE_OK;
 	struct acpi_ec *ec = NULL;
 
 	if (!device)
 		return -EINVAL;
 
-	ec = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
-	if (!ec)
-		return -ENOMEM;
-
-	ec->handle = device->handle;
-	ec->uid = -1;
-	mutex_init(&ec->lock);
-	atomic_set(&ec->query_pending, 0);
-	atomic_set(&ec->event_count, 1);
-	if (acpi_ec_mode == EC_INTR) {
-		atomic_set(&ec->leaving_burst, 1);
-		init_waitqueue_head(&ec->wait);
-	}
 	strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_EC_CLASS);
-	acpi_driver_data(device) = ec;
-
-	/* Use the global lock for all EC transactions? */
-	acpi_evaluate_integer(ec->handle, "_GLK", NULL, &ec->global_lock);
-
-	/* XXX we don't test uids, because on some boxes ecdt uid = 0, see:
-	   http://bugzilla.kernel.org/show_bug.cgi?id=6111 */
-	if (ec_ecdt) {
-		acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
-						  ACPI_ADR_SPACE_EC,
-						  &acpi_ec_space_handler);
 
-		acpi_remove_gpe_handler(NULL, ec_ecdt->gpe,
-					&acpi_ec_gpe_handler);
+	ec = make_acpi_ec();
+	if (!ec)
+		return -ENOMEM;
 
-		kfree(ec_ecdt);
+	status = ec_parse_device(device->handle, 0, ec, NULL);
+	if (status != AE_CTRL_TERMINATE) {
+		kfree(ec);
+		return -EINVAL;
 	}
 
-	/* Get GPE bit assignment (EC events). */
-	/* TODO: Add support for _GPE returning a package */
-	status = acpi_evaluate_integer(ec->handle, "_GPE", NULL, &ec->gpe);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Obtaining GPE bit assignment"));
-		result = -ENODEV;
-		goto end;
-	}
+	/* Check if we found the boot EC */
+	if (boot_ec) {
+		if (boot_ec->gpe == ec->gpe) {
+			/* We might have incorrect info for GL at boot time */
+			mutex_lock(&boot_ec->lock);
+			boot_ec->global_lock = ec->global_lock;
+			mutex_unlock(&boot_ec->lock);
+			kfree(ec);
+			ec = boot_ec;
+		}
+	} else
+		first_ec = ec;
+	ec->handle = device->handle;
+	acpi_driver_data(device) = ec;
 
-	result = acpi_ec_add_fs(device);
-	if (result)
-		goto end;
+	acpi_ec_add_fs(device);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s [%s] (gpe %d) interrupt mode.",
 			  acpi_device_name(device), acpi_device_bid(device),
 			  (u32) ec->gpe));
 
-	if (!first_ec)
-		first_ec = device;
-
-      end:
-	if (result)
-		kfree(ec);
-
-	return result;
+	return 0;
 }
 
 static int acpi_ec_remove(struct acpi_device *device, int type)
 {
-	struct acpi_ec *ec = NULL;
+	struct acpi_ec *ec;
 
 	if (!device)
 		return -EINVAL;
 
 	ec = acpi_driver_data(device);
-
 	acpi_ec_remove_fs(device);
+	acpi_driver_data(device) = NULL;
+	if (ec == first_ec)
+		first_ec = NULL;
 
-	kfree(ec);
-
+	/* Don't touch boot EC */
+	if (boot_ec != ec)
+		kfree(ec);
 	return 0;
 }
 
 static acpi_status
-acpi_ec_io_ports(struct acpi_resource *resource, void *context)
+ec_parse_io_ports(struct acpi_resource *resource, void *context)
 {
-	struct acpi_ec *ec = (struct acpi_ec *)context;
+	struct acpi_ec *ec = context;
 
-	if (resource->type != ACPI_RESOURCE_TYPE_IO) {
+	if (resource->type != ACPI_RESOURCE_TYPE_IO)
 		return AE_OK;
-	}
 
 	/*
 	 * The first address region returned is the data port, and
 	 * the second address region returned is the status/command
 	 * port.
 	 */
-	if (ec->data_addr == 0) {
+	if (ec->data_addr == 0)
 		ec->data_addr = resource->data.io.minimum;
-	} else if (ec->command_addr == 0) {
+	else if (ec->command_addr == 0)
 		ec->command_addr = resource->data.io.minimum;
-	} else {
+	else
 		return AE_CTRL_TERMINATE;
-	}
 
 	return AE_OK;
 }
 
-static int acpi_ec_start(struct acpi_device *device)
+static int ec_install_handlers(struct acpi_ec *ec)
 {
-	acpi_status status = AE_OK;
-	struct acpi_ec *ec = NULL;
-
-	if (!device)
-		return -EINVAL;
-
-	ec = acpi_driver_data(device);
-
-	if (!ec)
-		return -EINVAL;
-
-	/*
-	 * Get I/O port addresses. Convert to GAS format.
-	 */
-	status = acpi_walk_resources(ec->handle, METHOD_NAME__CRS,
-				     acpi_ec_io_ports, ec);
-	if (ACPI_FAILURE(status) || ec->command_addr == 0) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Error getting I/O port addresses"));
-		return -ENODEV;
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02lx, ports=0x%2lx,0x%2lx",
-			  ec->gpe, ec->command_addr, ec->data_addr));
-
-	/*
-	 * Install GPE handler
-	 */
+	acpi_status status;
 	status = acpi_install_gpe_handler(NULL, ec->gpe,
 					  ACPI_GPE_EDGE_TRIGGERED,
 					  &acpi_ec_gpe_handler, ec);
-	if (ACPI_FAILURE(status)) {
+	if (ACPI_FAILURE(status))
 		return -ENODEV;
-	}
+
 	acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
 	acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
 
@@ -779,18 +715,49 @@ static int acpi_ec_start(struct acpi_device *device)
 		return -ENODEV;
 	}
 
-	return AE_OK;
+	/* EC is fully operational, allow queries */
+	atomic_set(&ec->query_pending, 0);
+
+	return 0;
+}
+
+static int acpi_ec_start(struct acpi_device *device)
+{
+	struct acpi_ec *ec;
+
+	if (!device)
+		return -EINVAL;
+
+	ec = acpi_driver_data(device);
+
+	if (!ec)
+		return -EINVAL;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02lx, ports=0x%2lx,0x%2lx",
+			  ec->gpe, ec->command_addr, ec->data_addr));
+
+	/* Boot EC is already working */
+	if (ec == boot_ec)
+		return 0;
+
+	return ec_install_handlers(ec);
 }
 
 static int acpi_ec_stop(struct acpi_device *device, int type)
 {
-	acpi_status status = AE_OK;
-	struct acpi_ec *ec = NULL;
+	acpi_status status;
+	struct acpi_ec *ec;
 
 	if (!device)
 		return -EINVAL;
 
 	ec = acpi_driver_data(device);
+	if (!ec)
+		return -EINVAL;
+
+	/* Don't touch boot EC */
+	if (ec == boot_ec)
+		return 0;
 
 	status = acpi_remove_address_space_handler(ec->handle,
 						   ACPI_ADR_SPACE_EC,
@@ -805,164 +772,67 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
 	return 0;
 }
 
-static acpi_status __init
-acpi_fake_ecdt_callback(acpi_handle handle,
-			u32 Level, void *context, void **retval)
+static acpi_status
+ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
 {
 	acpi_status status;
 
-	mutex_init(&ec_ecdt->lock);
-	atomic_set(&ec_ecdt->event_count, 1);
-	if (acpi_ec_mode == EC_INTR) {
-		init_waitqueue_head(&ec_ecdt->wait);
-	}
+	struct acpi_ec *ec = context;
 	status = acpi_walk_resources(handle, METHOD_NAME__CRS,
-				     acpi_ec_io_ports, ec_ecdt);
+				     ec_parse_io_ports, ec);
 	if (ACPI_FAILURE(status))
 		return status;
 
-	ec_ecdt->uid = -1;
-	acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->uid);
-
-	status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->gpe);
+	/* Get GPE bit assignment (EC events). */
+	/* TODO: Add support for _GPE returning a package */
+	status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe);
 	if (ACPI_FAILURE(status))
 		return status;
-	ec_ecdt->global_lock = TRUE;
-	ec_ecdt->handle = handle;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "GPE=0x%02lx, ports=0x%2lx, 0x%2lx",
-			  ec_ecdt->gpe, ec_ecdt->command_addr,
-			  ec_ecdt->data_addr));
 
-	return AE_CTRL_TERMINATE;
-}
-
-/*
- * Some BIOS (such as some from Gateway laptops) access EC region very early
- * such as in BAT0._INI or EC._INI before an EC device is found and
- * do not provide an ECDT. According to ACPI spec, ECDT isn't mandatorily
- * required, but if EC regison is accessed early, it is required.
- * The routine tries to workaround the BIOS bug by pre-scan EC device
- * It assumes that _CRS, _HID, _GPE, _UID methods of EC don't touch any
- * op region (since _REG isn't invoked yet). The assumption is true for
- * all systems found.
- */
-static int __init acpi_ec_fake_ecdt(void)
-{
-	acpi_status status;
-	int ret = 0;
+	/* Use the global lock for all EC transactions? */
+	acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock);
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Try to make an fake ECDT"));
+	ec->handle = handle;
 
-	ec_ecdt = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
-	if (!ec_ecdt) {
-		ret = -ENOMEM;
-		goto error;
-	}
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "GPE=0x%02lx, ports=0x%2lx, 0x%2lx",
+			  ec->gpe, ec->command_addr, ec->data_addr));
 
-	status = acpi_get_devices(ACPI_EC_HID,
-				  acpi_fake_ecdt_callback, NULL, NULL);
-	if (ACPI_FAILURE(status)) {
-		kfree(ec_ecdt);
-		ec_ecdt = NULL;
-		ret = -ENODEV;
-		ACPI_EXCEPTION((AE_INFO, status, "Can't make an fake ECDT"));
-		goto error;
-	}
-	return 0;
-      error:
-	return ret;
+	return AE_CTRL_TERMINATE;
 }
 
-static int __init acpi_ec_get_real_ecdt(void)
+int __init acpi_ec_ecdt_probe(void)
 {
+	int ret;
 	acpi_status status;
 	struct acpi_table_ecdt *ecdt_ptr;
 
-	status = acpi_get_table(ACPI_SIG_ECDT, 1,
-				(struct acpi_table_header **)&ecdt_ptr);
-	if (ACPI_FAILURE(status))
-		return -ENODEV;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found ECDT"));
-
+	boot_ec = make_acpi_ec();
+	if (!boot_ec)
+		return -ENOMEM;
 	/*
-	 * Generate a temporary ec context to use until the namespace is scanned
+	 * Generate a boot ec context
 	 */
-	ec_ecdt = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
-	if (!ec_ecdt)
-		return -ENOMEM;
 
-	mutex_init(&ec_ecdt->lock);
-	atomic_set(&ec_ecdt->event_count, 1);
-	if (acpi_ec_mode == EC_INTR) {
-		init_waitqueue_head(&ec_ecdt->wait);
-	}
-	ec_ecdt->command_addr = ecdt_ptr->control.address;
-	ec_ecdt->data_addr = ecdt_ptr->data.address;
-	ec_ecdt->gpe = ecdt_ptr->gpe;
-	/* use the GL just to be safe */
-	ec_ecdt->global_lock = TRUE;
-	ec_ecdt->uid = ecdt_ptr->uid;
-
-	status = acpi_get_handle(NULL, ecdt_ptr->id, &ec_ecdt->handle);
-	if (ACPI_FAILURE(status)) {
+	status = acpi_get_table(ACPI_SIG_ECDT, 1,
+				(struct acpi_table_header **)&ecdt_ptr);
+	if (ACPI_FAILURE(status))
 		goto error;
-	}
-
-	return 0;
-      error:
-	ACPI_EXCEPTION((AE_INFO, status, "Could not use ECDT"));
-	kfree(ec_ecdt);
-	ec_ecdt = NULL;
 
-	return -ENODEV;
-}
-
-static int __initdata acpi_fake_ecdt_enabled;
-int __init acpi_ec_ecdt_probe(void)
-{
-	acpi_status status;
-	int ret;
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found ECDT"));
 
-	ret = acpi_ec_get_real_ecdt();
-	/* Try to make a fake ECDT */
-	if (ret && acpi_fake_ecdt_enabled) {
-		ret = acpi_ec_fake_ecdt();
-	}
+	boot_ec->command_addr = ecdt_ptr->control.address;
+	boot_ec->data_addr = ecdt_ptr->data.address;
+	boot_ec->gpe = ecdt_ptr->gpe;
+	boot_ec->handle = ACPI_ROOT_OBJECT;
 
-	if (ret)
+	ret = ec_install_handlers(boot_ec);
+	if (!ret) {
+		first_ec = boot_ec;
 		return 0;
-
-	/*
-	 * Install GPE handler
-	 */
-	status = acpi_install_gpe_handler(NULL, ec_ecdt->gpe,
-					  ACPI_GPE_EDGE_TRIGGERED,
-					  &acpi_ec_gpe_handler, ec_ecdt);
-	if (ACPI_FAILURE(status)) {
-		goto error;
 	}
-	acpi_set_gpe_type(NULL, ec_ecdt->gpe, ACPI_GPE_TYPE_RUNTIME);
-	acpi_enable_gpe(NULL, ec_ecdt->gpe, ACPI_NOT_ISR);
-
-	status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
-						    ACPI_ADR_SPACE_EC,
-						    &acpi_ec_space_handler,
-						    &acpi_ec_space_setup,
-						    ec_ecdt);
-	if (ACPI_FAILURE(status)) {
-		acpi_remove_gpe_handler(NULL, ec_ecdt->gpe,
-					&acpi_ec_gpe_handler);
-		goto error;
-	}
-
-	return 0;
-
       error:
-	ACPI_EXCEPTION((AE_INFO, status, "Could not use ECDT"));
-	kfree(ec_ecdt);
-	ec_ecdt = NULL;
+	kfree(boot_ec);
+	boot_ec = NULL;
 
 	return -ENODEV;
 }
@@ -1003,13 +873,6 @@ static void __exit acpi_ec_exit(void)
 }
 #endif				/* 0 */
 
-static int __init acpi_fake_ecdt_setup(char *str)
-{
-	acpi_fake_ecdt_enabled = 1;
-	return 1;
-}
-
-__setup("acpi_fake_ecdt", acpi_fake_ecdt_setup);
 static int __init acpi_ec_set_intr_mode(char *str)
 {
 	int intr;
@@ -1017,12 +880,8 @@ static int __init acpi_ec_set_intr_mode(char *str)
 	if (!get_option(&str, &intr))
 		return 0;
 
-	if (intr) {
-		acpi_ec_mode = EC_INTR;
-	} else {
-		acpi_ec_mode = EC_POLL;
-	}
-	acpi_ec_driver.ops.add = acpi_ec_add;
+	acpi_ec_mode = (intr) ? EC_INTR : EC_POLL;
+
 	printk(KERN_NOTICE PREFIX "%s mode.\n", intr ? "interrupt" : "polling");
 
 	return 1;

drivers/acpi/i2c_ec.c

-/*
- * SMBus driver for ACPI Embedded Controller ($Revision: 1.3 $)
- *
- * Copyright (c) 2002, 2005 Ducrot Bruno
- * Copyright (c) 2005 Rich Townsend (tiny hacks & tweaks)
- *
- * 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 version 2.
- */
-
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/i2c.h>
-#include <linux/acpi.h>
-#include <linux/delay.h>
-
-#include "i2c_ec.h"
-
-#define	xudelay(t)	udelay(t)
-#define	xmsleep(t)	msleep(t)
-
-#define ACPI_EC_HC_COMPONENT	0x00080000
-#define ACPI_EC_HC_CLASS	"ec_hc_smbus"
-#define ACPI_EC_HC_HID		"ACPI0001"
-#define ACPI_EC_HC_DEVICE_NAME	"EC HC smbus"
-
-#define _COMPONENT		ACPI_EC_HC_COMPONENT
-
-ACPI_MODULE_NAME("i2c_ec");
-
-static int acpi_ec_hc_add(struct acpi_device *device);
-static int acpi_ec_hc_remove(struct acpi_device *device, int type);
-
-static struct acpi_driver acpi_ec_hc_driver = {
-	.name = "i2c_ec",
-	.class = ACPI_EC_HC_CLASS,
-	.ids = ACPI_EC_HC_HID,
-	.ops = {
-		.add = acpi_ec_hc_add,
-		.remove = acpi_ec_hc_remove,
-		},
-};
-
-/* Various bit mask for EC_SC (R) */
-#define OBF		0x01
-#define IBF		0x02
-#define CMD		0x08
-#define BURST		0x10
-#define SCI_EVT		0x20
-#define SMI_EVT		0x40
-
-/* Commands for EC_SC (W) */
-#define RD_EC		0x80
-#define WR_EC		0x81
-#define BE_EC		0x82
-#define BD_EC		0x83
-#define QR_EC		0x84
-
-/*
- * ACPI 2.0 chapter 13 SMBus 2.0 EC register model
- */
-
-#define ACPI_EC_SMB_PRTCL	0x00	/* protocol, PEC */
-#define ACPI_EC_SMB_STS		0x01	/* status */
-#define ACPI_EC_SMB_ADDR	0x02	/* address */
-#define ACPI_EC_SMB_CMD		0x03	/* command */
-#define ACPI_EC_SMB_DATA	0x04	/* 32 data registers */
-#define ACPI_EC_SMB_BCNT	0x24	/* number of data bytes */
-#define ACPI_EC_SMB_ALRM_A	0x25	/* alarm address */
-#define ACPI_EC_SMB_ALRM_D	0x26	/* 2 bytes alarm data */
-
-#define ACPI_EC_SMB_STS_DONE	0x80
-#define ACPI_EC_SMB_STS_ALRM	0x40
-#define ACPI_EC_SMB_STS_RES	0x20
-#define ACPI_EC_SMB_STS_STATUS	0x1f
-
-#define ACPI_EC_SMB_STATUS_OK		0x00
-#define ACPI_EC_SMB_STATUS_FAIL		0x07
-#define ACPI_EC_SMB_STATUS_DNAK		0x10
-#define ACPI_EC_SMB_STATUS_DERR		0x11
-#define ACPI_EC_SMB_STATUS_CMD_DENY	0x12
-#define ACPI_EC_SMB_STATUS_UNKNOWN	0x13
-#define ACPI_EC_SMB_STATUS_ACC_DENY	0x17
-#define ACPI_EC_SMB_STATUS_TIMEOUT	0x18
-#define ACPI_EC_SMB_STATUS_NOTSUP	0x19
-#define ACPI_EC_SMB_STATUS_BUSY		0x1A
-#define ACPI_EC_SMB_STATUS_PEC		0x1F
-
-#define ACPI_EC_SMB_PRTCL_WRITE			0x00
-#define ACPI_EC_SMB_PRTCL_READ			0x01
-#define ACPI_EC_SMB_PRTCL_QUICK			0x02
-#define ACPI_EC_SMB_PRTCL_BYTE			0x04
-#define ACPI_EC_SMB_PRTCL_BYTE_DATA		0x06
-#define ACPI_EC_SMB_PRTCL_WORD_DATA		0x08
-#define ACPI_EC_SMB_PRTCL_BLOCK_DATA		0x0a
-#define ACPI_EC_SMB_PRTCL_PROC_CALL		0x0c
-#define ACPI_EC_SMB_PRTCL_BLOCK_PROC_CALL	0x0d
-#define ACPI_EC_SMB_PRTCL_I2C_BLOCK_DATA	0x4a
-#define ACPI_EC_SMB_PRTCL_PEC			0x80
-
-/* Length of pre/post transaction sleep (msec) */
-#define ACPI_EC_SMB_TRANSACTION_SLEEP		1
-#define ACPI_EC_SMB_ACCESS_SLEEP1		1
-#define ACPI_EC_SMB_ACCESS_SLEEP2		10
-
-static int acpi_ec_smb_read(struct acpi_ec_smbus *smbus, u8 address, u8 * data)
-{
-	u8 val;
-	int err;
-
-	err = ec_read(smbus->base + address, &val);
-	if (!err) {
-		*data = val;
-	}
-	xmsleep(ACPI_EC_SMB_TRANSACTION_SLEEP);
-	return (err);
-}
-
-static int acpi_ec_smb_write(struct acpi_ec_smbus *smbus, u8 address, u8 data)
-{
-	int err;
-
-	err = ec_write(smbus->base + address, data);
-	return (err);
-}
-
-static int
-acpi_ec_smb_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
-		   char read_write, u8 command, int size,
-		   union i2c_smbus_data *data)
-{
-	struct acpi_ec_smbus *smbus = adap->algo_data;
-	unsigned char protocol, len = 0, pec, temp[2] = { 0, 0 };
-	int i;
-
-	if (read_write == I2C_SMBUS_READ) {
-		protocol = ACPI_EC_SMB_PRTCL_READ;
-	} else {
-		protocol = ACPI_EC_SMB_PRTCL_WRITE;
-	}
-	pec = (flags & I2C_CLIENT_PEC) ? ACPI_EC_SMB_PRTCL_PEC : 0;
-
-	switch (size) {
-
-	case I2C_SMBUS_QUICK:
-		protocol |= ACPI_EC_SMB_PRTCL_QUICK;
-		read_write = I2C_SMBUS_WRITE;
-		break;
-
-	case I2C_SMBUS_BYTE:
-		if (read_write == I2C_SMBUS_WRITE) {
-			acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA, data->byte);
-		}
-		protocol |= ACPI_EC_SMB_PRTCL_BYTE;
-		break;
-
-	case I2C_SMBUS_BYTE_DATA:
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_CMD, command);
-		if (read_write == I2C_SMBUS_WRITE) {
-			acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA, data->byte);
-		}
-		protocol |= ACPI_EC_SMB_PRTCL_BYTE_DATA;
-		break;
-
-	case I2C_SMBUS_WORD_DATA:
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_CMD, command);
-		if (read_write == I2C_SMBUS_WRITE) {
-			acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA, data->word);
-			acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA + 1,
-					  data->word >> 8);
-		}
-		protocol |= ACPI_EC_SMB_PRTCL_WORD_DATA | pec;
-		break;
-
-	case I2C_SMBUS_BLOCK_DATA:
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_CMD, command);
-		if (read_write == I2C_SMBUS_WRITE) {
-			len = min_t(u8, data->block[0], 32);
-			acpi_ec_smb_write(smbus, ACPI_EC_SMB_BCNT, len);
-			for (i = 0; i < len; i++)
-				acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA + i,
-						  data->block[i + 1]);
-		}
-		protocol |= ACPI_EC_SMB_PRTCL_BLOCK_DATA | pec;
-		break;
-
-	case I2C_SMBUS_I2C_BLOCK_DATA:
-		len = min_t(u8, data->block[0], 32);
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_CMD, command);
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_BCNT, len);
-		if (read_write == I2C_SMBUS_WRITE) {
-			for (i = 0; i < len; i++) {
-				acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA + i,
-						  data->block[i + 1]);
-			}
-		}
-		protocol |= ACPI_EC_SMB_PRTCL_I2C_BLOCK_DATA;
-		break;
-
-	case I2C_SMBUS_PROC_CALL:
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_CMD, command);
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA, data->word);
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA + 1, data->word >> 8);
-		protocol = ACPI_EC_SMB_PRTCL_PROC_CALL | pec;
-		read_write = I2C_SMBUS_READ;
-		break;
-
-	case I2C_SMBUS_BLOCK_PROC_CALL:
-		protocol |= pec;
-		len = min_t(u8, data->block[0], 31);
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_CMD, command);
-		acpi_ec_smb_write(smbus, ACPI_EC_SMB_BCNT, len);
-		for (i = 0; i < len; i++)
-			acpi_ec_smb_write(smbus, ACPI_EC_SMB_DATA + i,
-					  data->block[i + 1]);
-		protocol = ACPI_EC_SMB_PRTCL_BLOCK_PROC_CALL | pec;
-		read_write = I2C_SMBUS_READ;
-		break;
-
-	default:
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN, "EC SMBus adapter: "
-				  "Unsupported transaction %d\n", size));
-		return (-1);
-	}
-
-	acpi_ec_smb_write(smbus, ACPI_EC_SMB_ADDR, addr << 1);
-	acpi_ec_smb_write(smbus, ACPI_EC_SMB_PRTCL, protocol);
-
-	acpi_ec_smb_read(smbus, ACPI_EC_SMB_STS, temp + 0);
-
-	if (~temp[0] & ACPI_EC_SMB_STS_DONE) {
-		xudelay(500);
-		acpi_ec_smb_read(smbus, ACPI_EC_SMB_STS, temp + 0);
-	}
-	if (~temp[0] & ACPI_EC_SMB_STS_DONE) {
-		xmsleep(ACPI_EC_SMB_ACCESS_SLEEP2);
-		acpi_ec_smb_read(smbus, ACPI_EC_SMB_STS, temp + 0);
-	}
-	if ((~temp[0] & ACPI_EC_SMB_STS_DONE)
-	    || (temp[0] & ACPI_EC_SMB_STS_STATUS)) {
-		return (-1);
-	}
-
-	if (read_write == I2C_SMBUS_WRITE) {
-		return (0);
-	}
-
-	switch (size) {
-
-	case I2C_SMBUS_BYTE:
-	case I2C_SMBUS_BYTE_DATA:
-		acpi_ec_smb_read(smbus, ACPI_EC_SMB_DATA, &data->byte);
-		break;
-
-	case I2C_SMBUS_WORD_DATA:
-	case I2C_SMBUS_PROC_CALL:
-		acpi_ec_smb_read(smbus, ACPI_EC_SMB_DATA, temp + 0);
-		acpi_ec_smb_read(smbus, ACPI_EC_SMB_DATA + 1, temp + 1);
-		data->word = (temp[1] << 8) | temp[0];
-		break;
-
-	case I2C_SMBUS_BLOCK_DATA:
-	case I2C_SMBUS_BLOCK_PROC_CALL:
-		len = 0;
-		acpi_ec_smb_read(smbus, ACPI_EC_SMB_BCNT, &len);
-		len = min_t(u8, len, 32);
-	case I2C_SMBUS_I2C_BLOCK_DATA:
-		for (i = 0; i < len; i++)
-			acpi_ec_smb_read(smbus, ACPI_EC_SMB_DATA + i,
-					 data->block + i + 1);
-		data->block[0] = len;
-		break;
-	}
-
-	return (0);
-}
-
-static u32 acpi_ec_smb_func(struct i2c_adapter *adapter)
-{
-
-	return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
-		I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
-		I2C_FUNC_SMBUS_BLOCK_DATA |
-		I2C_FUNC_SMBUS_PROC_CALL |
-		I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
-		I2C_FUNC_SMBUS_I2C_BLOCK | I2C_FUNC_SMBUS_HWPEC_CALC);
-}
-
-static const struct i2c_algorithm acpi_ec_smbus_algorithm = {
-	.smbus_xfer = acpi_ec_smb_access,
-	.functionality = acpi_ec_smb_func,
-};
-
-static int acpi_ec_hc_add(struct acpi_device *device)
-{
-	int status;
-	unsigned long val;
-	struct acpi_ec_hc *ec_hc;
-	struct acpi_ec_smbus *smbus;
-
-	if (!device) {
-		return -EINVAL;
-	}
-
-	ec_hc = kzalloc(sizeof(struct acpi_ec_hc), GFP_KERNEL);
-	if (!ec_hc) {
-		return -ENOMEM;
-	}
-
-	smbus = kzalloc(sizeof(struct acpi_ec_smbus), GFP_KERNEL);
-	if (!smbus) {
-		kfree(ec_hc);
-		return -ENOMEM;
-	}
-
-	ec_hc->handle = device->handle;
-	strcpy(acpi_device_name(device), ACPI_EC_HC_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_EC_HC_CLASS);
-	acpi_driver_data(device) = ec_hc;
-
-	status = acpi_evaluate_integer(ec_hc->handle, "_EC", NULL, &val);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Error obtaining _EC\n"));
-		kfree(ec_hc);
-		kfree(smbus);
-		return -EIO;
-	}
-
-	smbus->ec = acpi_driver_data(device->parent);
-	smbus->base = (val & 0xff00ull) >> 8;
-	smbus->alert = val & 0xffull;
-
-	smbus->adapter.owner = THIS_MODULE;
-	smbus->adapter.algo = &acpi_ec_smbus_algorithm;
-	smbus->adapter.algo_data = smbus;
-	smbus->adapter.dev.parent = &device->dev;
-
-	if (i2c_add_adapter(&smbus->adapter)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-				  "EC SMBus adapter: Failed to register adapter\n"));
-		kfree(smbus);
-		kfree(ec_hc);
-		return -EIO;
-	}
-
-	ec_hc->smbus = smbus;
-
-	printk(KERN_INFO PREFIX "%s [%s]\n",
-	       acpi_device_name(device), acpi_device_bid(device));
-
-	return AE_OK;
-}
-
-static int acpi_ec_hc_remove(struct acpi_device *device, int type)
-{
-	struct acpi_ec_hc *ec_hc;
-
-	if (!device) {
-		return -EINVAL;
-	}
-	ec_hc = acpi_driver_data(device);
-
-	i2c_del_adapter(&ec_hc->smbus->adapter);
-	kfree(ec_hc->smbus);
-	kfree(ec_hc);
-
-	return AE_OK;
-}
-
-static int __init acpi_ec_hc_init(void)
-{
-	int result;
-
-	result = acpi_bus_register_driver(&acpi_ec_hc_driver);
-	if (result < 0) {
-		return -ENODEV;
-	}
-	return 0;
-}
-
-static void __exit acpi_ec_hc_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_ec_hc_driver);
-}
-
-struct acpi_ec_hc *acpi_get_ec_hc(struct acpi_device *device)
-{
-	return acpi_driver_data(device->parent);
-}
-
-EXPORT_SYMBOL(acpi_get_ec_hc);
-
-module_init(acpi_ec_hc_init);
-module_exit(acpi_ec_hc_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Ducrot Bruno");
-MODULE_DESCRIPTION("ACPI EC SMBus driver");

drivers/acpi/i2c_ec.h

-/*
- * SMBus driver for ACPI Embedded Controller ($Revision: 1.2 $)
- *
- * Copyright (c) 2002, 2005 Ducrot Bruno
- *
- * 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 version 2.
- */
-
-struct acpi_ec_smbus {
-	struct i2c_adapter adapter;
-	union acpi_ec *ec;
-	int base;
-	int alert;
-};
-
-struct acpi_ec_hc {
-	acpi_handle handle;
-	struct acpi_ec_smbus *smbus;
-};
-
-struct acpi_ec_hc *acpi_get_ec_hc(struct acpi_device *device);

drivers/acpi/processor_core.c

@@ -70,8 +70,6 @@
 #define ACPI_PROCESSOR_LIMIT_USER	0
 #define ACPI_PROCESSOR_LIMIT_THERMAL	1
 
-#define ACPI_STA_PRESENT 0x00000001
-
 #define _COMPONENT		ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_core");
 
@@ -779,7 +777,7 @@ static int is_processor_present(acpi_handle handle)
 
 
 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
-	if (ACPI_FAILURE(status) || !(sta & ACPI_STA_PRESENT)) {
+	if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
 		return 0;
 	}

drivers/acpi/processor_idle.c

@@ -51,14 +51,6 @@
 #include <asm/apic.h>
 #endif
 
-/*
- * Include the apic definitions for x86 to have the APIC timer related defines
- * available also for UP (on SMP it gets magically included via linux/smp.h).
- */
-#ifdef CONFIG_X86
-#include <asm/apic.h>
-#endif
-
 #include <asm/io.h>
 #include <asm/uaccess.h>
 

drivers/acpi/scan.c

@@ -1068,7 +1068,9 @@ acpi_add_single_object(struct acpi_device **child,
 		}
 		break;
 	default:
-		STRUCT_TO_INT(device->status) = 0x0F;
+		STRUCT_TO_INT(device->status) =
+		    ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
+		    ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING;
 		break;
 	}
 

drivers/acpi/sleep/proc.c

@@ -350,21 +350,31 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
 {
 	struct list_head *node, *next;
 
-	seq_printf(seq, "Device	Sleep state	Status\n");
+	seq_printf(seq, "Device\tS-state\t  Status   Sysfs node\n");
 
 	spin_lock(&acpi_device_lock);
 	list_for_each_safe(node, next, &acpi_wakeup_device_list) {
 		struct acpi_device *dev =
 		    container_of(node, struct acpi_device, wakeup_list);
+		struct device *ldev;
 
 		if (!dev->wakeup.flags.valid)
 			continue;
 		spin_unlock(&acpi_device_lock);
-		seq_printf(seq, "%4s	%4d		%s%8s\n",
+
+		ldev = acpi_get_physical_device(dev->handle);
+		seq_printf(seq, "%s\t  S%d\t%c%-8s  ",
 			   dev->pnp.bus_id,
 			   (u32) dev->wakeup.sleep_state,
-			   dev->wakeup.flags.run_wake ? "*" : "",
+			   dev->wakeup.flags.run_wake ? '*' : ' ',
 			   dev->wakeup.state.enabled ? "enabled" : "disabled");
+		if (ldev)
+			seq_printf(seq, "%s:%s",
+				ldev->bus ? ldev->bus->name : "no-bus",
+				ldev->bus_id);
+		seq_printf(seq, "\n");
+		put_device(ldev);
+
 		spin_lock(&acpi_device_lock);
 	}
 	spin_unlock(&acpi_device_lock);

drivers/acpi/tables/tbfadt.c

@@ -347,6 +347,18 @@ static void acpi_tb_convert_fadt(void)
 		acpi_gbl_xpm1b_enable.space_id = acpi_gbl_FADT.xpm1a_event_block.space_id;
 
 	}
+
+	/*
+	 * For ACPI 1.0 FADTs, ensure that reserved fields (which should be zero)
+	 * are indeed zero. This will workaround BIOSs that inadvertently placed
+	 * values in these fields.
+	 */
+	if (acpi_gbl_FADT.header.revision < 3) {
+		acpi_gbl_FADT.preferred_profile = 0;
+		acpi_gbl_FADT.pstate_control = 0;
+		acpi_gbl_FADT.cst_control = 0;
+		acpi_gbl_FADT.boot_flags = 0;
+	}
 }
 
 /******************************************************************************

drivers/char/sonypi.c

 /*
  * Sony Programmable I/O Control Device driver for VAIO
  *
+ * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
+ *
  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  *
  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
@@ -95,6 +97,11 @@ module_param(useinput, int, 0444);
 MODULE_PARM_DESC(useinput,
 		 "set this if you would like sonypi to feed events to the input subsystem");
 
+static int check_ioport = 1;
+module_param(check_ioport, int, 0444);
+MODULE_PARM_DESC(check_ioport,
+		 "set this to 0 if you think the automatic ioport check for sony-laptop is wrong");
+
 #define SONYPI_DEVICE_MODEL_TYPE1	1
 #define SONYPI_DEVICE_MODEL_TYPE2	2
 #define SONYPI_DEVICE_MODEL_TYPE3	3
@@ -477,7 +484,7 @@ static struct sonypi_device {
 	u16 evtype_offset;
 	int camera_power;
 	int bluetooth_power;
-	struct semaphore lock;
+	struct mutex lock;
 	struct kfifo *fifo;
 	spinlock_t fifo_lock;
 	wait_queue_head_t fifo_proc_list;
@@ -884,7 +891,7 @@ int sonypi_camera_command(int command, u8 value)
 	if (!camera)
 		return -EIO;
 
-	down(&sonypi_device.lock);
+	mutex_lock(&sonypi_device.lock);
 
 	switch (command) {
 	case SONYPI_COMMAND_SETCAMERA:
@@ -919,7 +926,7 @@ int sonypi_camera_command(int command, u8 value)
 		       command);
 		break;
 	}
-	up(&sonypi_device.lock);
+	mutex_unlock(&sonypi_device.lock);
 	return 0;
 }
 
@@ -938,20 +945,20 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
 static int sonypi_misc_release(struct inode *inode, struct file *file)
 {
 	sonypi_misc_fasync(-1, file, 0);
-	down(&sonypi_device.lock);
+	mutex_lock(&sonypi_device.lock);
 	sonypi_device.open_count--;
-	up(&sonypi_device.lock);
+	mutex_unlock(&sonypi_device.lock);
 	return 0;
 }
 
 static int sonypi_misc_open(struct inode *inode, struct file *file)
 {
-	down(&sonypi_device.lock);
+	mutex_lock(&sonypi_device.lock);
 	/* Flush input queue on first open */
 	if (!sonypi_device.open_count)
 		kfifo_reset(sonypi_device.fifo);
 	sonypi_device.open_count++;
-	up(&sonypi_device.lock);
+	mutex_unlock(&sonypi_device.lock);
 	return 0;
 }
 
@@ -1001,7 +1008,7 @@ static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
 	u8 val8;
 	u16 val16;
 
-	down(&sonypi_device.lock);
+	mutex_lock(&sonypi_device.lock);
 	switch (cmd) {
 	case SONYPI_IOCGBRT:
 		if (sonypi_ec_read(SONYPI_LCD_LIGHT, &val8)) {
@@ -1101,7 +1108,7 @@ static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
 	default:
 		ret = -EINVAL;
 	}
-	up(&sonypi_device.lock);
+	mutex_unlock(&sonypi_device.lock);
 	return ret;
 }
 
@@ -1260,6 +1267,28 @@ static int __devinit sonypi_create_input_devices(void)
 static int __devinit sonypi_setup_ioports(struct sonypi_device *dev,
 				const struct sonypi_ioport_list *ioport_list)
 {
+	/* try to detect if sony-laptop is being used and thus
+	 * has already requested one of the known ioports.
+	 * As in the deprecated check_region this is racy has we have
+	 * multiple ioports available and one of them can be requested
+	 * between this check and the subsequent request. Anyway, as an
+	 * attempt to be some more user-friendly as we currently are,
+	 * this is enough.
+	 */
+	const struct sonypi_ioport_list *check = ioport_list;
+	while (check_ioport && check->port1) {
+		if (!request_region(check->port1,
+				   sonypi_device.region_size,
+				   "Sony Programable I/O Device Check")) {
+			printk(KERN_ERR "sonypi: ioport 0x%.4x busy, using sony-laptop? "
+					"if not use check_ioport=0\n",
+					check->port1);
+			return -EBUSY;
+		}
+		release_region(check->port1, sonypi_device.region_size);
+		check++;
+	}
+
 	while (ioport_list->port1) {
 
 		if (request_region(ioport_list->port1,
@@ -1321,6 +1350,10 @@ static int __devinit sonypi_probe(struct platform_device *dev)
 	struct pci_dev *pcidev;
 	int error;
 
+	printk(KERN_WARNING "sonypi: please try the sony-laptop module instead "
+			"and report failures, see also "
+			"http://www.linux.it/~malattia/wiki/index.php/Sony_drivers\n");
+
 	spin_lock_init(&sonypi_device.fifo_lock);
 	sonypi_device.fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL,
 					 &sonypi_device.fifo_lock);
@@ -1330,7 +1363,7 @@ static int __devinit sonypi_probe(struct platform_device *dev)
 	}
 
 	init_waitqueue_head(&sonypi_device.fifo_proc_list);
-	init_MUTEX(&sonypi_device.lock);
+	mutex_init(&sonypi_device.lock);
 	sonypi_device.bluetooth_power = -1;
 
 	if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,

drivers/clocksource/acpi_pm.c

@@ -26,7 +26,7 @@
 /*
  * The I/O port the PMTMR resides at.
  * The location is detected during setup_arch(),
- * in arch/i386/acpi/boot.c
+ * in arch/i386/kernel/acpi/boot.c
  */
 u32 pmtmr_ioport __read_mostly;
 

drivers/media/video/Kconfig

@@ -577,14 +577,14 @@ config VIDEO_ZORAN_AVS6EYES
 
 config VIDEO_MEYE
 	tristate "Sony Vaio Picturebook Motion Eye Video For Linux"
-	depends on PCI && SONYPI && VIDEO_V4L1
+	depends on PCI && SONY_LAPTOP && VIDEO_V4L1
 	---help---
 	  This is the video4linux driver for the Motion Eye camera found
 	  in the Vaio Picturebook laptops. Please read the material in
 	  <file:Documentation/video4linux/meye.txt> for more information.
 
-	  If you say Y or M here, you need to say Y or M to "Sony Programmable
-	  I/O Control Device" in the character device section.
+	  If you say Y or M here, you need to say Y or M to "Sony Laptop
+	  Extras" in the misc device section.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called meye.

drivers/media/video/meye.c

@@ -925,13 +925,13 @@ static int meye_do_ioctl(struct inode *inode, struct file *file,
 		if (p->palette != VIDEO_PALETTE_YUV422 && p->palette != VIDEO_PALETTE_YUYV)
 			return -EINVAL;
 		mutex_lock(&meye.lock);
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERABRIGHTNESS,
 				      p->brightness >> 10);
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAHUE,
 				      p->hue >> 10);
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERACOLOR,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERACOLOR,
 				      p->colour >> 10);
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERACONTRAST,
 				      p->contrast >> 10);
 		meye.picture = *p;
 		mutex_unlock(&meye.lock);
@@ -1043,11 +1043,11 @@ static int meye_do_ioctl(struct inode *inode, struct file *file,
 		    meye.params.quality != jp->quality)
 			mchip_hic_stop();	/* need restart */
 		meye.params = *jp;
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERASHARPNESS,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS,
 				      meye.params.sharpness);
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAAGC,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC,
 				      meye.params.agc);
-		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE,
+		sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE,
 				      meye.params.picture);
 		mutex_unlock(&meye.lock);
 		break;
@@ -1287,38 +1287,38 @@ static int meye_do_ioctl(struct inode *inode, struct file *file,
 		mutex_lock(&meye.lock);
 		switch (c->id) {
 		case V4L2_CID_BRIGHTNESS:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERABRIGHTNESS, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, c->value);
 			meye.picture.brightness = c->value << 10;
 			break;
 		case V4L2_CID_HUE:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERAHUE, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERAHUE, c->value);
 			meye.picture.hue = c->value << 10;
 			break;
 		case V4L2_CID_CONTRAST:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERACONTRAST, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERACONTRAST, c->value);
 			meye.picture.contrast = c->value << 10;
 			break;
 		case V4L2_CID_SATURATION:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERACOLOR, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERACOLOR, c->value);
 			meye.picture.colour = c->value << 10;
 			break;
 		case V4L2_CID_AGC:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERAAGC, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERAAGC, c->value);
 			meye.params.agc = c->value;
 			break;
 		case V4L2_CID_SHARPNESS:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERASHARPNESS, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERASHARPNESS, c->value);
 			meye.params.sharpness = c->value;
 			break;
 		case V4L2_CID_PICTURE:
-			sonypi_camera_command(
-				SONYPI_COMMAND_SETCAMERAPICTURE, c->value);
+			sony_pic_camera_command(
+				SONY_PIC_COMMAND_SETCAMERAPICTURE, c->value);
 			meye.params.picture = c->value;
 			break;
 		case V4L2_CID_JPEGQUAL:
@@ -1848,7 +1848,7 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
 	memcpy(meye.video_dev, &meye_template, sizeof(meye_template));
 	meye.video_dev->dev = &meye.mchip_dev->dev;
 
-	if ((ret = sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 1))) {
+	if ((ret = sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 1))) {
 		printk(KERN_ERR "meye: unable to power on the camera\n");
 		printk(KERN_ERR "meye: did you enable the camera in "
 				"sonypi using the module options ?\n");
@@ -1928,13 +1928,13 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
 	meye.params.picture = 0;
 	meye.params.framerate = 0;
 
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS, 32);
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE, 32);
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERACOLOR, 32);
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST, 32);
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERASHARPNESS, 32);
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE, 0);
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERAAGC, 48);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, 32);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAHUE, 32);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERACOLOR, 32);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERACONTRAST, 32);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS, 32);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE, 0);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC, 48);
 
 	printk(KERN_INFO "meye: Motion Eye Camera Driver v%s.\n",
 	       MEYE_DRIVER_VERSION);
@@ -1953,7 +1953,7 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
 outregions:
 	pci_disable_device(meye.mchip_dev);
 outenabledev:
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 0);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
 outsonypienable:
 	kfifo_free(meye.doneq);
 outkfifoalloc2:
@@ -1986,7 +1986,7 @@ static void __devexit meye_remove(struct pci_dev *pcidev)
 
 	pci_disable_device(meye.mchip_dev);
 
-	sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 0);
+	sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
 
 	kfifo_free(meye.doneq);
 	kfifo_free(meye.grabq);

drivers/media/video/meye.h

@@ -255,7 +255,7 @@
 /****************************************************************************/
 
 /* Sony Programmable I/O Controller for accessing the camera commands */
-#include <linux/sonypi.h>
+#include <linux/sony-laptop.h>
 
 /* private API definitions */
 #include <linux/meye.h>

drivers/misc/Kconfig

@@ -112,14 +112,70 @@ config SONY_LAPTOP
 	depends on X86 && ACPI
 	select BACKLIGHT_CLASS_DEVICE
 	  ---help---
-	  This mini-driver drives the SNC device present in the ACPI BIOS of
-	  the Sony Vaio laptops.
+	  This mini-driver drives the SNC and SPIC devices present in the ACPI
+	  BIOS of the Sony Vaio laptops.
 
-	  It gives access to some extra laptop functionalities. In its current
-	  form, this driver let the user set or query the screen brightness
-	  through the backlight subsystem and remove/apply power to some
+	  It gives access to some extra laptop functionalities like Bluetooth,
+	  screen brightness control, Fn keys and allows powering on/off some
 	  devices.
 
 	  Read <file:Documentation/sony-laptop.txt> for more information.
 
+config SONY_LAPTOP_OLD
+	bool "Sonypi compatibility"
+	depends on SONY_LAPTOP
+	  ---help---
+	  Build the sonypi driver compatibility code into the sony-laptop driver.
+
+config THINKPAD_ACPI
+	tristate "ThinkPad ACPI Laptop Extras"
+	depends on X86 && ACPI
+	select BACKLIGHT_CLASS_DEVICE
+	select HWMON
+	---help---
+	  This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
+	  support for Fn-Fx key combinations, Bluetooth control, video
+	  output switching, ThinkLight control, UltraBay eject and more.
+	  For more information about this driver see 
+	  <file:Documentation/thinkpad-acpi.txt> and <http://ibm-acpi.sf.net/> .
+
+	  This driver was formely known as ibm-acpi.
+
+	  If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
+
+config THINKPAD_ACPI_DEBUG
+	bool "Verbose debug mode"
+	depends on THINKPAD_ACPI
+	default n
+	---help---
+	  Enables extra debugging information, at the expense of a slightly
+	  increase in driver size.
+
+	  If you are not sure, say N here.
+
+config THINKPAD_ACPI_DOCK
+	bool "Legacy Docking Station Support"
+	depends on THINKPAD_ACPI
+	depends on ACPI_DOCK=n
+	default n
+	---help---
+	  Allows the thinkpad_acpi driver to handle docking station events.
+	  This support was made obsolete by the generic ACPI docking station
+	  support (CONFIG_ACPI_DOCK).  It will allow locking and removing the
+	  laptop from the docking station, but will not properly connect PCI
+	  devices.
+
+	  If you are not sure, say N here.
+
+config THINKPAD_ACPI_BAY
+	bool "Legacy Removable Bay Support"
+	depends on THINKPAD_ACPI
+	default y
+	---help---
+	  Allows the thinkpad_acpi driver to handle removable bays.  It will
+	  eletrically disable the device in the bay, and also generate
+	  notifications when the bay lever is ejected or inserted.
+
+	  If you are not sure, say Y here.
+
 endmenu

drivers/misc/Makefile

@@ -12,3 +12,4 @@ obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o
 obj-$(CONFIG_TIFM_7XX1)       	+= tifm_7xx1.o
 obj-$(CONFIG_SGI_IOC4)		+= ioc4.o
 obj-$(CONFIG_SONY_LAPTOP)	+= sony-laptop.o
+obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o

drivers/pci/pci-acpi.c

@@ -317,6 +317,10 @@ static int __init acpi_pci_init(void)
 {
 	int ret;
 
+	if (acpi_gbl_FADT.boot_flags & BAF_MSI_NOT_SUPPORTED) {
+		printk(KERN_INFO"ACPI FADT declares the system doesn't support MSI, so disable it\n");
+		pci_no_msi();
+	}
 	ret = register_acpi_bus_type(&acpi_pci_bus);
 	if (ret)
 		return 0;

include/acpi/actbl.h

@@ -276,6 +276,7 @@ enum acpi_prefered_pm_profiles {
 
 #define BAF_LEGACY_DEVICES              0x0001
 #define BAF_8042_KEYBOARD_CONTROLLER    0x0002
+#define BAF_MSI_NOT_SUPPORTED           0x0008
 
 #define FADT2_REVISION_ID               3
 #define FADT2_MINUS_REVISION_ID         2

include/linux/sony-laptop.h

+#ifndef _SONYLAPTOP_H_
+#define _SONYLAPTOP_H_
+
+#include <linux/types.h>
+
+#ifdef __KERNEL__
+
+/* used only for communication between v4l and sony-laptop */
+
+#define SONY_PIC_COMMAND_GETCAMERA		 1	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERA		 2
+#define SONY_PIC_COMMAND_GETCAMERABRIGHTNESS	 3	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERABRIGHTNESS	 4
+#define SONY_PIC_COMMAND_GETCAMERACONTRAST	 5	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERACONTRAST	 6
+#define SONY_PIC_COMMAND_GETCAMERAHUE		 7	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERAHUE		 8
+#define SONY_PIC_COMMAND_GETCAMERACOLOR		 9	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERACOLOR		10
+#define SONY_PIC_COMMAND_GETCAMERASHARPNESS	11	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERASHARPNESS	12
+#define SONY_PIC_COMMAND_GETCAMERAPICTURE	13	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERAPICTURE	14
+#define SONY_PIC_COMMAND_GETCAMERAAGC		15	/* obsolete */
+#define SONY_PIC_COMMAND_SETCAMERAAGC		16
+#define SONY_PIC_COMMAND_GETCAMERADIRECTION	17	/* obsolete */
+#define SONY_PIC_COMMAND_GETCAMERAROMVERSION	18	/* obsolete */
+#define SONY_PIC_COMMAND_GETCAMERAREVISION	19	/* obsolete */
+
+int sony_pic_camera_command(int command, u8 value);
+
+#endif	/* __KERNEL__ */
+
+#endif /* _SONYLAPTOP_H_ */