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: (112 commits)
  ACPI: fix build warning
  Revert "cpuidle: build fix for non-x86"
  ACPI: update intrd DSDT override console messages
  ACPI: update DSDT override documentation
  ACPI: Add "acpi_no_initrd_override" kernel parameter
  ACPI: its a directory not a folder....
  ACPI: misc cleanups
  ACPI: add missing prink prefix strings
  ACPI: cleanup acpi.h
  ACPICA: fix CONFIG_ACPI_DEBUG_FUNC_TRACE build
  ACPI: video: Ignore ACPI video devices that aren't present in hardware
  ACPI: video: reset brightness on resume
  ACPI: video: call ACPI notifier chain for ACPI video notifications
  ACPI: create notifier chain to get hotkey events to graphics driver
  ACPI: video: delete unused display switch on hotkey event code
  ACPI: video: create "brightness_switch_enabled" modparam
  cpuidle: Add a poll_idle method
  ACPI: cpuidle: Support C1 idle time accounting
  ACPI: enable MWAIT for C1 idle
  ACPI: idle: Fix acpi_safe_halt usages and interrupt enabling/disabling
  ...

Documentation/00-INDEX

@@ -14,6 +14,7 @@ Following translations are available on the WWW:
 	- this file.
 ABI/
 	- info on kernel <-> userspace ABI and relative interface stability.
+
 BUG-HUNTING
 	- brute force method of doing binary search of patches to find bug.
 Changes
@@ -66,6 +67,8 @@ VGA-softcursor.txt
 	- how to change your VGA cursor from a blinking underscore.
 accounting/
 	- documentation on accounting and taskstats.
+acpi/
+	- info on ACPI-specific hooks in the kernel.
 aoe/
 	- description of AoE (ATA over Ethernet) along with config examples.
 applying-patches.txt

Documentation/ABI/testing/sysfs-firmware-acpi

@@ -0,0 +1,99 @@
+What:		/sys/firmware/acpi/interrupts/
+Date:		February 2008
+Contact:	Len Brown <lenb@kernel.org>
+Description:
+		All ACPI interrupts are handled via a single IRQ,
+		the System Control Interrupt (SCI), which appears
+		as "acpi" in /proc/interrupts.
+
+		However, one of the main functions of ACPI is to make
+		the platform understand random hardware without
+		special driver support.  So while the SCI handles a few
+		well known (fixed feature) interrupts sources, such
+		as the power button, it can also handle a variable
+		number of a "General Purpose Events" (GPE).
+
+		A GPE vectors to a specified handler in AML, which
+		can do a anything the BIOS writer wants from
+		OS context.  GPE 0x12, for example, would vector
+		to a level or edge handler called _L12 or _E12.
+		The handler may do its business and return.
+		Or the handler may send send a Notify event
+		to a Linux device driver registered on an ACPI device,
+		such as a battery, or a processor.
+
+		To figure out where all the SCI's are coming from,
+		/sys/firmware/acpi/interrupts contains a file listing
+		every possible source, and the count of how many
+		times it has triggered.
+
+		$ cd /sys/firmware/acpi/interrupts
+		$ grep . *
+		error:0
+		ff_gbl_lock:0
+		ff_pmtimer:0
+		ff_pwr_btn:0
+		ff_rt_clk:0
+		ff_slp_btn:0
+		gpe00:0
+		gpe01:0
+		gpe02:0
+		gpe03:0
+		gpe04:0
+		gpe05:0
+		gpe06:0
+		gpe07:0
+		gpe08:0
+		gpe09:174
+		gpe0A:0
+		gpe0B:0
+		gpe0C:0
+		gpe0D:0
+		gpe0E:0
+		gpe0F:0
+		gpe10:0
+		gpe11:60
+		gpe12:0
+		gpe13:0
+		gpe14:0
+		gpe15:0
+		gpe16:0
+		gpe17:0
+		gpe18:0
+		gpe19:7
+		gpe1A:0
+		gpe1B:0
+		gpe1C:0
+		gpe1D:0
+		gpe1E:0
+		gpe1F:0
+		gpe_all:241
+		sci:241
+
+		sci - The total number of times the ACPI SCI
+		has claimed an interrupt.
+
+		gpe_all - count of SCI caused by GPEs.
+
+		gpeXX - count for individual GPE source
+
+		ff_gbl_lock - Global Lock
+
+		ff_pmtimer - PM Timer
+
+		ff_pwr_btn - Power Button
+
+		ff_rt_clk - Real Time Clock
+
+		ff_slp_btn - Sleep Button
+
+		error - an interrupt that can't be accounted for above.
+
+		Root has permission to clear any of these counters.  Eg.
+		# echo 0 > gpe11
+
+		All counters can be cleared by clearing the total "sci":
+		# echo 0 > sci
+
+		None of these counters has an effect on the function
+		of the system, they are simply statistics.

Documentation/acpi/dsdt-override.txt

@@ -0,0 +1,15 @@
+Linux supports two methods of overriding the BIOS DSDT:
+
+CONFIG_ACPI_CUSTOM_DSDT builds the image into the kernel.
+
+CONFIG_ACPI_CUSTOM_DSDT_INITRD adds the image to the initrd.
+
+When to use these methods is described in detail on the
+Linux/ACPI home page:
+http://www.lesswatts.org/projects/acpi/overridingDSDT.php
+
+Note that if both options are used, the DSDT supplied
+by the INITRD method takes precedence.
+
+Documentation/initramfs-add-dsdt.sh is provided for convenience
+for use with the CONFIG_ACPI_CUSTOM_DSDT_INITRD method.

Documentation/acpi/initramfs-add-dsdt.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+# Adds a DSDT file to the initrd (if it's an initramfs)
+# first argument is the name of archive
+# second argument is the name of the file to add
+# The file will be copied as /DSDT.aml
+
+# 20060126: fix "Premature end of file" with some old cpio (Roland Robic)
+# 20060205: this time it should really work
+
+# check the arguments
+if [ $# -ne 2 ]; then
+	program_name=$(basename $0)
+	echo "\
+$program_name: too few arguments
+Usage: $program_name initrd-name.img DSDT-to-add.aml
+Adds a DSDT file to an initrd (in initramfs format)
+
+  initrd-name.img: filename of the initrd in initramfs format
+  DSDT-to-add.aml: filename of the DSDT file to add
+  " 1>&2
+    exit 1
+fi
+
+# we should check it's an initramfs
+
+tempcpio=$(mktemp -d)
+# cleanup on exit, hangup, interrupt, quit, termination
+trap 'rm -rf $tempcpio' 0 1 2 3 15
+
+# extract the archive
+gunzip -c "$1" > "$tempcpio"/initramfs.cpio || exit 1
+
+# copy the DSDT file at the root of the directory so that we can call it "/DSDT.aml"
+cp -f "$2" "$tempcpio"/DSDT.aml
+
+# add the file
+cd "$tempcpio"
+(echo DSDT.aml | cpio --quiet -H newc -o -A -O "$tempcpio"/initramfs.cpio) || exit 1
+cd "$OLDPWD"
+
+# re-compress the archive
+gzip -c "$tempcpio"/initramfs.cpio > "$1"
+

Documentation/acpi/method-tracing.txt

@@ -0,0 +1,26 @@
+/sys/module/acpi/parameters/:
+
+trace_method_name
+	The AML method name that the user wants to trace
+
+trace_debug_layer
+	The temporary debug_layer used when tracing the method.
+	Using 0xffffffff by default if it is 0.
+
+trace_debug_level
+	The temporary debug_level used when tracing the method.
+	Using 0x00ffffff by default if it is 0.
+
+trace_state
+	The status of the tracing feature.
+
+	"enabled" means this feature is enabled
+	and the AML method is traced every time it's executed.
+
+	"1" means this feature is enabled and the AML method
+	will only be traced during the next execution.
+
+	"disabled" means this feature is disabled.
+	Users can enable/disable this debug tracing feature by
+	"echo string > /sys/module/acpi/parameters/trace_state".
+	"string" should be one of "enable", "disable" and "1".

Documentation/kernel-parameters.txt

@@ -147,8 +147,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			default: 0
 
 	acpi_sleep=	[HW,ACPI] Sleep options
-			Format: { s3_bios, s3_mode }
+			Format: { s3_bios, s3_mode, s3_beep }
-			See Documentation/power/video.txt
+			See Documentation/power/video.txt for s3_bios and s3_mode.
+			s3_beep is for debugging; it makes the PC's speaker beep
+			as soon as the kernel's real-mode entry point is called.
 
 	acpi_sci=	[HW,ACPI] ACPI System Control Interrupt trigger mode
 			Format: { level | edge | high | low }
@@ -175,6 +177,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	acpi_no_auto_ssdt	[HW,ACPI] Disable automatic loading of SSDT
 
+	acpi_no_initrd_override	[KNL,ACPI]
+			Disable loading custom ACPI tables from the initramfs
+
 	acpi_os_name=	[HW,ACPI] Tell ACPI BIOS the name of the OS
 			Format: To spoof as Windows 98: ="Microsoft Windows"
 

Documentation/power/swsusp.txt

@@ -386,6 +386,11 @@ before suspending; then remount them after resuming.
 There is a work-around for this problem.  For more information, see
 Documentation/usb/persist.txt.
 
+Q: Can I suspend-to-disk using a swap partition under LVM?
+
+A: No. You can suspend successfully, but you'll not be able to
+resume. uswsusp should be able to work with LVM. See suspend.sf.net.
+
 Q: I upgraded the kernel from 2.6.15 to 2.6.16. Both kernels were
 compiled with the similar configuration files. Anyway I found that
 suspend to disk (and resume) is much slower on 2.6.16 compared to

Documentation/thermal/sysfs-api.txt

@@ -0,0 +1,246 @@
+Generic Thermal Sysfs driver How To
+=========================
+
+Written by Sujith Thomas <sujith.thomas@intel.com>, Zhang Rui <rui.zhang@intel.com>
+
+Updated: 2 January 2008
+
+Copyright (c)  2008 Intel Corporation
+
+
+0. Introduction
+
+The generic thermal sysfs provides a set of interfaces for thermal zone devices (sensors)
+and thermal cooling devices (fan, processor...) to register with the thermal management
+solution and to be a part of it.
+
+This how-to focusses on enabling new thermal zone and cooling devices to participate
+in thermal management.
+This solution is platform independent and any type of thermal zone devices and
+cooling devices should be able to make use of the infrastructure.
+
+The main task of the thermal sysfs driver is to expose thermal zone attributes as well
+as cooling device attributes to the user space.
+An intelligent thermal management application can make decisions based on inputs
+from thermal zone attributes (the current temperature and trip point temperature)
+and throttle appropriate devices.
+
+[0-*]	denotes any positive number starting from 0
+[1-*]	denotes any positive number starting from 1
+
+1. thermal sysfs driver interface functions
+
+1.1 thermal zone device interface
+1.1.1 struct thermal_zone_device *thermal_zone_device_register(char *name, int trips,
+				void *devdata, struct thermal_zone_device_ops *ops)
+
+	This interface function adds a new thermal zone device (sensor) to
+	/sys/class/thermal folder as thermal_zone[0-*].
+	It tries to bind all the thermal cooling devices registered at the same time.
+
+	name: the thermal zone name.
+	trips: the total number of trip points this thermal zone supports.
+	devdata: device private data
+	ops: thermal zone device callbacks.
+		.bind: bind the thermal zone device with a thermal cooling device.
+		.unbind: unbing the thermal zone device with a thermal cooling device.
+		.get_temp: get the current temperature of the thermal zone.
+		.get_mode: get the current mode (user/kernel) of the thermal zone.
+			   "kernel" means thermal management is done in kernel.
+			   "user" will prevent kernel thermal driver actions upon trip points
+			   so that user applications can take charge of thermal management.
+		.set_mode: set the mode (user/kernel) of the thermal zone.
+		.get_trip_type: get the type of certain trip point.
+		.get_trip_temp: get the temperature above which the certain trip point
+				will be fired.
+
+1.1.2 void thermal_zone_device_unregister(struct thermal_zone_device *tz)
+
+	This interface function removes the thermal zone device.
+	It deletes the corresponding entry form /sys/class/thermal folder and unbind all
+	the thermal cooling devices it uses.
+
+1.2 thermal cooling device interface
+1.2.1 struct thermal_cooling_device *thermal_cooling_device_register(char *name,
+					void *devdata, struct thermal_cooling_device_ops *)
+
+	This interface function adds a new thermal cooling device (fan/processor/...) to
+	/sys/class/thermal/ folder as cooling_device[0-*].
+	It tries to bind itself to all the thermal zone devices register at the same time.
+	name: the cooling device name.
+	devdata: device private data.
+	ops: thermal cooling devices callbacks.
+		.get_max_state: get the Maximum throttle state of the cooling device.
+		.get_cur_state: get the Current throttle state of the cooling device.
+		.set_cur_state: set the Current throttle state of the cooling device.
+
+1.2.2 void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
+
+	This interface function remove the thermal cooling device.
+	It deletes the corresponding entry form /sys/class/thermal folder and unbind
+	itself from all	the thermal zone devices using it.
+
+1.3 interface for binding a thermal zone device with a thermal cooling device
+1.3.1 int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
+			int trip, struct thermal_cooling_device *cdev);
+
+	This interface function bind a thermal cooling device to the certain trip point
+	of a thermal zone device.
+	This function is usually called in the thermal zone device .bind callback.
+	tz: the thermal zone device
+	cdev: thermal cooling device
+	trip: indicates which trip point the cooling devices is associated with
+		 in this thermal zone.
+
+1.3.2 int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
+				int trip, struct thermal_cooling_device *cdev);
+
+	This interface function unbind a thermal cooling device from the certain trip point
+	of a thermal zone device.
+	This function is usually called in the thermal zone device .unbind callback.
+	tz: the thermal zone device
+	cdev: thermal cooling device
+	trip: indicates which trip point the cooling devices is associated with
+		in this thermal zone.
+
+2. sysfs attributes structure
+
+RO	read only value
+RW	read/write value
+
+All thermal sysfs attributes will be represented under /sys/class/thermal
+/sys/class/thermal/
+
+Thermal zone device sys I/F, created once it's registered:
+|thermal_zone[0-*]:
+	|-----type:			Type of the thermal zone
+	|-----temp:			Current temperature
+	|-----mode:			Working mode of the thermal zone
+	|-----trip_point_[0-*]_temp:	Trip point temperature
+	|-----trip_point_[0-*]_type:	Trip point type
+
+Thermal cooling device sys I/F, created once it's registered:
+|cooling_device[0-*]:
+	|-----type :			Type of the cooling device(processor/fan/...)
+	|-----max_state:		Maximum cooling state of the cooling device
+	|-----cur_state:		Current cooling state of the cooling device
+
+
+These two dynamic attributes are created/removed in pairs.
+They represent the relationship between a thermal zone and its associated cooling device.
+They are created/removed for each
+thermal_zone_bind_cooling_device/thermal_zone_unbind_cooling_device successful exection.
+
+|thermal_zone[0-*]
+	|-----cdev[0-*]:		The [0-*]th cooling device in the current thermal zone
+	|-----cdev[0-*]_trip_point:	Trip point that cdev[0-*] is associated with
+
+
+***************************
+* Thermal zone attributes *
+***************************
+
+type				Strings which represent the thermal zone type.
+				This is given by thermal zone driver as part of registration.
+				Eg: "ACPI thermal zone" indicates it's a ACPI thermal device
+				RO
+				Optional
+
+temp				Current temperature as reported by thermal zone (sensor)
+				Unit: degree celsius
+				RO
+				Required
+
+mode				One of the predifned values in [kernel, user]
+				This file gives information about the algorithm
+				that is currently managing the thermal zone.
+				It can be either default kernel based algorithm
+				or user space application.
+				RW
+				Optional
+				kernel	= Thermal management in kernel thermal zone driver.
+				user	= Preventing kernel thermal zone driver actions upon
+					  trip points so that user application can take full
+					  charge of the thermal management.
+
+trip_point_[0-*]_temp		The temperature above which trip point will be fired
+				Unit: degree celsius
+				RO
+				Optional
+
+trip_point_[0-*]_type 		Strings which indicate the type of the trip point
+				Eg. it can be one of critical, hot, passive,
+				    active[0-*] for ACPI thermal zone.
+				RO
+				Optional
+
+cdev[0-*]			Sysfs link to the thermal cooling device node where the sys I/F
+				for cooling device throttling control represents.
+				RO
+				Optional
+
+cdev[0-*]_trip_point		The trip point with which cdev[0-*] is assocated in this thermal zone
+				-1 means the cooling device is not associated with any trip point.
+				RO
+				Optional
+
+******************************
+* Cooling device  attributes *
+******************************
+
+type				String which represents the type of device
+				eg: For generic ACPI: this should be "Fan",
+				"Processor" or "LCD"
+				eg. For memory controller device on intel_menlow platform:
+				this should be "Memory controller"
+				RO
+				Optional
+
+max_state			The maximum permissible cooling state of this cooling device.
+				RO
+				Required
+
+cur_state			The current cooling state of this cooling device.
+				the value can any integer numbers between 0 and max_state,
+				cur_state == 0 means no cooling
+				cur_state == max_state means the maximum cooling.
+				RW
+				Required
+
+3. A simple implementation
+
+ACPI thermal zone may support multiple trip points like critical/hot/passive/active.
+If an ACPI thermal zone supports critical, passive, active[0] and active[1] at the same time,
+it may register itself as a thermale_zone_device (thermal_zone1) with 4 trip points in all.
+It has one processor and one fan, which are both registered as thermal_cooling_device.
+If the processor is listed in _PSL method, and the fan is listed in _AL0 method,
+the sys I/F structure will be built like this:
+
+/sys/class/thermal:
+
+|thermal_zone1:
+	|-----type:			ACPI thermal zone
+	|-----temp:			37
+	|-----mode:			kernel
+	|-----trip_point_0_temp:	100
+	|-----trip_point_0_type:	critical
+	|-----trip_point_1_temp:	80
+	|-----trip_point_1_type:	passive
+	|-----trip_point_2_temp:	70
+	|-----trip_point_2_type:	active[0]
+	|-----trip_point_3_temp:	60
+	|-----trip_point_3_type:	active[1]
+	|-----cdev0:			--->/sys/class/thermal/cooling_device0
+	|-----cdev0_trip_point:		1	/* cdev0 can be used for passive */
+	|-----cdev1:			--->/sys/class/thermal/cooling_device3
+	|-----cdev1_trip_point:		2	/* cdev1 can be used for active[0]*/
+
+|cooling_device0:
+	|-----type:			Processor
+	|-----max_state:		8
+	|-----cur_state:		0
+
+|cooling_device3:
+	|-----type:			Fan
+	|-----max_state:		2
+	|-----cur_state:		0

Documentation/thinkpad-acpi.txt

@@ -1,7 +1,7 @@
 		     ThinkPad ACPI Extras Driver
 
-                            Version 0.17
+                            Version 0.19
-                         October 04th, 2007
+                         January 06th, 2008
 
                Borislav Deianov <borislav@users.sf.net>
              Henrique de Moraes Holschuh <hmh@hmh.eng.br>
@@ -215,6 +215,11 @@ The following commands can be written to the /proc/acpi/ibm/hotkey file:
 	... any other 8-hex-digit mask ...
 	echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
 
+The procfs interface does not support NVRAM polling control.  So as to
+maintain maximum bug-to-bug compatibility, it does not report any masks,
+nor does it allow one to manipulate the hot key mask when the firmware
+does not support masks at all, even if NVRAM polling is in use.
+
 sysfs notes:
 
 	hotkey_bios_enabled:
@@ -231,17 +236,26 @@ sysfs notes:
 		to this value.
 
 	hotkey_enable:
-		Enables/disables the hot keys feature, and reports
+		Enables/disables the hot keys feature in the ACPI
-		current status of the hot keys feature.
+		firmware, and reports current status of the hot keys
+		feature.  Has no effect on the NVRAM hot key polling
+		functionality.
 
 		0: disables the hot keys feature / feature disabled
 		1: enables the hot keys feature / feature enabled
 
 	hotkey_mask:
-		bit mask to enable driver-handling and ACPI event
+		bit mask to enable driver-handling (and depending on
-		generation for each hot key (see above).  Returns the
+		the firmware, ACPI event generation) for each hot key
-		current status of the hot keys mask, and allows one to
+		(see above).  Returns the current status of the hot keys
-		modify it.
+		mask, and allows one to modify it.
+
+		Note: when NVRAM polling is active, the firmware mask
+		will be different from the value returned by
+		hotkey_mask.  The driver will retain enabled bits for
+		hotkeys that are under NVRAM polling even if the
+		firmware refuses them, and will not set these bits on
+		the firmware hot key mask.
 
 	hotkey_all_mask:
 		bit mask that should enable event reporting for all
@@ -257,12 +271,48 @@ sysfs notes:
 		handled by the firmware anyway.  Echo it to
 		hotkey_mask above, to use.
 
+	hotkey_source_mask:
+		bit mask that selects which hot keys will the driver
+		poll the NVRAM for.  This is auto-detected by the driver
+		based on the capabilities reported by the ACPI firmware,
+		but it can be overridden at runtime.
+
+		Hot keys whose bits are set in both hotkey_source_mask
+		and also on hotkey_mask are polled for in NVRAM.  Only a
+		few hot keys are available through CMOS NVRAM polling.
+
+		Warning: when in NVRAM mode, the volume up/down/mute
+		keys are synthesized according to changes in the mixer,
+		so you have to use volume up or volume down to unmute,
+		as per the ThinkPad volume mixer user interface.  When
+		in ACPI event mode, volume up/down/mute are reported as
+		separate events, but this behaviour may be corrected in
+		future releases of this driver, in which case the
+		ThinkPad volume mixer user interface semanthics will be
+		enforced.
+
+	hotkey_poll_freq:
+		frequency in Hz for hot key polling. It must be between
+		0 and 25 Hz.  Polling is only carried out when strictly
+		needed.
+
+		Setting hotkey_poll_freq to zero disables polling, and
+		will cause hot key presses that require NVRAM polling
+		to never be reported.
+
+		Setting hotkey_poll_freq too low will cause repeated
+		pressings of the same hot key to be misreported as a
+		single key press, or to not even be detected at all.
+		The recommended polling frequency is 10Hz.
+
 	hotkey_radio_sw:
 		if the ThinkPad has a hardware radio switch, this
 		attribute will read 0 if the switch is in the "radios
 		disabled" postition, and 1 if the switch is in the
 		"radios enabled" position.
 
+		This attribute has poll()/select() support.
+
 	hotkey_report_mode:
 		Returns the state of the procfs ACPI event report mode
 		filter for hot keys.  If it is set to 1 (the default),
@@ -277,6 +327,25 @@ sysfs notes:
 		May return -EPERM (write access locked out by module
 		parameter) or -EACCES (read-only).
 
+	wakeup_reason:
+		Set to 1 if the system is waking up because the user
+		requested a bay ejection.  Set to 2 if the system is
+		waking up because the user requested the system to
+		undock.  Set to zero for normal wake-ups or wake-ups
+		due to unknown reasons.
+
+		This attribute has poll()/select() support.
+
+	wakeup_hotunplug_complete:
+		Set to 1 if the system was waken up because of an
+		undock or bay ejection request, and that request
+		was sucessfully completed.  At this point, it might
+		be useful to send the system back to sleep, at the
+		user's choice.  Refer to HKEY events 0x4003 and
+		0x3003, below.
+
+		This attribute has poll()/select() support.
+
 input layer notes:
 
 A Hot key is mapped to a single input layer EV_KEY event, possibly
@@ -427,6 +496,23 @@ Non hot-key ACPI HKEY event map:
 The above events are not propagated by the driver, except for legacy
 compatibility purposes when hotkey_report_mode is set to 1.
 
+0x2304		System is waking up from suspend to undock
+0x2305		System is waking up from suspend to eject bay
+0x2404		System is waking up from hibernation to undock
+0x2405		System is waking up from hibernation to eject bay
+
+The above events are never propagated by the driver.
+
+0x3003		Bay ejection (see 0x2x05) complete, can sleep again
+0x4003		Undocked (see 0x2x04), can sleep again
+0x5009		Tablet swivel: switched to tablet mode
+0x500A		Tablet swivel: switched to normal mode
+0x500B		Tablet pen insterted into its storage bay
+0x500C		Tablet pen removed from its storage bay
+0x5010		Brightness level changed (newer Lenovo BIOSes)
+
+The above events are propagated by the driver.
+
 Compatibility notes:
 
 ibm-acpi and thinkpad-acpi 0.15 (mainline kernels before 2.6.23) never
@@ -1263,3 +1349,17 @@ Sysfs interface changelog:
 		and the hwmon class for libsensors4 (lm-sensors 3)
 		compatibility.  Moved all hwmon attributes to this
 		new platform device.
+
+0x020100:	Marker for thinkpad-acpi with hot key NVRAM polling
+		support.  If you must, use it to know you should not
+		start an userspace NVRAM poller (allows to detect when
+		NVRAM is compiled out by the user because it is
+		unneeded/undesired in the first place).
+0x020101:	Marker for thinkpad-acpi with hot key NVRAM polling
+		and proper hotkey_mask semanthics (version 8 of the
+		NVRAM polling patch).  Some development snapshots of
+		0.18 had an earlier version that did strange things
+		to hotkey_mask.
+
+0x020200:	Add poll()/select() support to the following attributes:
+		hotkey_radio_sw, wakeup_hotunplug_complete, wakeup_reason

MAINTAINERS

@@ -202,6 +202,13 @@ L:	linux-scsi@vger.kernel.org
 W:	http://www.adaptec.com/
 S:	Supported
 
+ACER WMI LAPTOP EXTRAS
+P:	Carlos Corbacho
+M:	carlos@strangeworlds.co.uk
+L:	aceracpi@googlegroups.com (subscribers-only)
+W:	http://code.google.com/p/aceracpi
+S:	Maintained
+
 ACPI
 P:	Len Brown
 M:	len.brown@intel.com
@@ -252,6 +259,13 @@ L:	linux-acpi@vger.kernel.org
 W:	http://acpi.sourceforge.net/
 S:	Supported
 
+ACPI WMI DRIVER
+P:      Carlos Corbacho
+M:      carlos@strangeworlds.co.uk
+L:      linux-acpi@vger.kernel.org
+W:      http://www.lesswatts.org/projects/acpi/
+S:      Maintained
+
 ADM1025 HARDWARE MONITOR DRIVER
 P:	Jean Delvare
 M:	khali@linux-fr.org
@@ -1790,6 +1804,11 @@ P:	Jaroslav Kysela
 M:	perex@perex.cz
 S:	Maintained
 
+HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER
+P:	Carlos Corbacho
+M:	carlos@strangeworlds.co.uk
+S:	Odd Fixes
+
 HPET:	High Precision Event Timers driver (hpet.c)
 P:	Clemens Ladisch
 M:	clemens@ladisch.de

arch/ia64/kernel/acpi-processor.c

@@ -45,6 +45,12 @@ static void init_intel_pdc(struct acpi_processor *pr)
 	buf[0] = ACPI_PDC_REVISION_ID;
 	buf[1] = 1;
 	buf[2] = ACPI_PDC_EST_CAPABILITY_SMP;
+	/*
+	 * The default of PDC_SMP_T_SWCOORD bit is set for IA64 cpu so
+	 * that OSPM is capable of native ACPI throttling software
+	 * coordination using BIOS supplied _TSD info.
+	 */
+	buf[2] |= ACPI_PDC_SMP_T_SWCOORD;
 
 	obj->type = ACPI_TYPE_BUFFER;
 	obj->buffer.length = 12;

arch/ia64/kernel/acpi.c

@@ -69,6 +69,20 @@ unsigned int acpi_cpei_phys_cpuid;
 
 unsigned long acpi_wakeup_address = 0;
 
+#ifdef CONFIG_IA64_GENERIC
+static unsigned long __init acpi_find_rsdp(void)
+{
+	unsigned long rsdp_phys = 0;
+
+	if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
+		rsdp_phys = efi.acpi20;
+	else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
+		printk(KERN_WARNING PREFIX
+		       "v1.0/r0.71 tables no longer supported\n");
+	return rsdp_phys;
+}
+#endif
+
 const char __init *
 acpi_get_sysname(void)
 {
@@ -152,7 +166,7 @@ int acpi_request_vector(u32 int_type)
 	return vector;
 }
 
-char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
+char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
 {
 	return __va(phys_addr);
 }
@@ -601,8 +615,6 @@ int acpi_register_gsi(u32 gsi, int triggering, int polarity)
 				     IOSAPIC_LEVEL);
 }
 
-EXPORT_SYMBOL(acpi_register_gsi);
-
 void acpi_unregister_gsi(u32 gsi)
 {
 	if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
@@ -611,8 +623,6 @@ void acpi_unregister_gsi(u32 gsi)
 	iosapic_unregister_intr(gsi);
 }
 
-EXPORT_SYMBOL(acpi_unregister_gsi);
-
 static int __init acpi_parse_fadt(struct acpi_table_header *table)
 {
 	struct acpi_table_header *fadt_header;
@@ -631,18 +641,6 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
 	return 0;
 }
 
-unsigned long __init acpi_find_rsdp(void)
-{
-	unsigned long rsdp_phys = 0;
-
-	if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
-		rsdp_phys = efi.acpi20;
-	else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
-		printk(KERN_WARNING PREFIX
-		       "v1.0/r0.71 tables no longer supported\n");
-	return rsdp_phys;
-}
-
 int __init acpi_boot_init(void)
 {
 

arch/x86/Kconfig

@@ -105,6 +105,9 @@ config GENERIC_TIME_VSYSCALL
 	bool
 	default X86_64
 
+config ARCH_HAS_CPU_RELAX
+	def_bool y
+
 config HAVE_SETUP_PER_CPU_AREA
 	def_bool X86_64
 

arch/x86/kernel/acpi/boot.c

@@ -78,7 +78,6 @@ int acpi_ht __initdata = 1;	/* enable HT */
 int acpi_lapic;
 int acpi_ioapic;
 int acpi_strict;
-EXPORT_SYMBOL(acpi_strict);
 
 u8 acpi_sci_flags __initdata;
 int acpi_sci_override_gsi __initdata;
@@ -106,7 +105,7 @@ enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC;
 #ifdef	CONFIG_X86_64
 
 /* rely on all ACPI tables being in the direct mapping */
-char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
+char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
 {
 	if (!phys_addr || !size)
 		return NULL;
@@ -131,7 +130,7 @@ char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
  * from the fixed base.  That's why we start at FIX_IO_APIC_BASE_END and
  * count idx down while incrementing the phys address.
  */
-char *__acpi_map_table(unsigned long phys, unsigned long size)
+char *__init __acpi_map_table(unsigned long phys, unsigned long size)
 {
 	unsigned long base, offset, mapped_size;
 	int idx;
@@ -490,8 +489,6 @@ int acpi_register_gsi(u32 gsi, int triggering, int polarity)
 	return irq;
 }
 
-EXPORT_SYMBOL(acpi_register_gsi);
-
 /*
  *  ACPI based hotplug support for CPU
  */
@@ -587,25 +584,6 @@ int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
 
 EXPORT_SYMBOL(acpi_unregister_ioapic);
 
-static unsigned long __init
-acpi_scan_rsdp(unsigned long start, unsigned long length)
-{
-	unsigned long offset = 0;
-	unsigned long sig_len = sizeof("RSD PTR ") - 1;
-
-	/*
-	 * Scan all 16-byte boundaries of the physical memory region for the
-	 * RSDP signature.
-	 */
-	for (offset = 0; offset < length; offset += 16) {
-		if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len))
-			continue;
-		return (start + offset);
-	}
-
-	return 0;
-}
-
 static int __init acpi_parse_sbf(struct acpi_table_header *table)
 {
 	struct acpi_table_boot *sb;
@@ -748,27 +726,6 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
 	return 0;
 }
 
-unsigned long __init acpi_find_rsdp(void)
-{
-	unsigned long rsdp_phys = 0;
-
-	if (efi_enabled) {
-		if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
-			return efi.acpi20;
-		else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
-			return efi.acpi;
-	}
-	/*
-	 * Scan memory looking for the RSDP signature. First search EBDA (low
-	 * memory) paragraphs and then search upper memory (E0000-FFFFF).
-	 */
-	rsdp_phys = acpi_scan_rsdp(0, 0x400);
-	if (!rsdp_phys)
-		rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000);
-
-	return rsdp_phys;
-}
-
 #ifdef	CONFIG_X86_LOCAL_APIC
 /*
  * Parse LAPIC entries in MADT

arch/x86/kernel/acpi/processor.c

@@ -46,6 +46,12 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 	buf[1] = 1;
 	buf[2] = ACPI_PDC_C_CAPABILITY_SMP;
 
+	/*
+	 * The default of PDC_SMP_T_SWCOORD bit is set for intel x86 cpu so
+	 * that OSPM is capable of native ACPI throttling software
+	 * coordination using BIOS supplied _TSD info.
+	 */
+	buf[2] |= ACPI_PDC_SMP_T_SWCOORD;
 	if (cpu_has(c, X86_FEATURE_EST))
 		buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
 

arch/x86/kernel/cpu/cpufreq/speedstep-lib.c

@@ -189,10 +189,7 @@ static unsigned int pentium4_get_frequency(void)
 		printk(KERN_DEBUG "speedstep-lib: couldn't detect FSB speed. Please send an e-mail to <linux@brodo.de>\n");
 
 	/* Multiplier. */
-	if (c->x86_model < 2)
+	mult = msr_lo >> 24;
-		mult = msr_lo >> 27;
-	else
-		mult = msr_lo >> 24;
 
 	dprintk("P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n", fsb, mult, (fsb * mult));
 

arch/x86/kernel/srat_32.c

@@ -274,7 +274,7 @@ int __init get_memcfg_from_srat(void)
 	int tables = 0;
 	int i = 0;
 
-	rsdp_address = acpi_find_rsdp();
+	rsdp_address = acpi_os_get_root_pointer();
 	if (!rsdp_address) {
 		printk("%s: System description tables not found\n",
 		       __FUNCTION__);

drivers/Kconfig

@@ -60,6 +60,8 @@ source "drivers/power/Kconfig"
 
 source "drivers/hwmon/Kconfig"
 
+source "drivers/thermal/Kconfig"
+
 source "drivers/watchdog/Kconfig"
 
 source "drivers/ssb/Kconfig"

drivers/Makefile

@@ -65,6 +65,7 @@ obj-y				+= i2c/
 obj-$(CONFIG_W1)		+= w1/
 obj-$(CONFIG_POWER_SUPPLY)	+= power/
 obj-$(CONFIG_HWMON)		+= hwmon/
+obj-$(CONFIG_THERMAL)		+= thermal/
 obj-$(CONFIG_WATCHDOG)		+= watchdog/
 obj-$(CONFIG_PHONE)		+= telephony/
 obj-$(CONFIG_MD)		+= md/

drivers/acpi/Kconfig

@@ -68,26 +68,28 @@ config ACPI_PROCFS
 
 	  Say N to delete /proc/acpi/ files that have moved to /sys/
 config ACPI_PROCFS_POWER
-	bool "Deprecated power /proc/acpi folders"
+	bool "Deprecated power /proc/acpi directories"
 	depends on PROC_FS
 	default y
 	---help---
 	  For backwards compatibility, this option allows
-          deprecated power /proc/acpi/ folders to exist, even when
+          deprecated power /proc/acpi/ directories to exist, even when
           they have been replaced by functions in /sys.
-          The deprecated folders (and their replacements) include:
+          The deprecated directories (and their replacements) include:
 	  /proc/acpi/battery/* (/sys/class/power_supply/*)
 	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
-	  This option has no effect on /proc/acpi/ folders
+	  This option has no effect on /proc/acpi/ directories
 	  and functions, which do not yet exist in /sys
 
-	  Say N to delete power /proc/acpi/ folders that have moved to /sys/
+	  Say N to delete power /proc/acpi/ directories that have moved to /sys/
+
 config ACPI_SYSFS_POWER
 	bool "Future power /sys interface"
 	select POWER_SUPPLY
 	default y
 	---help---
 	  Say N to disable power /sys interface
+
 config ACPI_PROC_EVENT
 	bool "Deprecated /proc/acpi/event support"
 	depends on PROC_FS
@@ -186,6 +188,7 @@ config ACPI_HOTPLUG_CPU
 config ACPI_THERMAL
 	tristate "Thermal Zone"
 	depends on ACPI_PROCESSOR
+	select THERMAL
 	default y
 	help
 	  This driver adds support for ACPI thermal zones.  Most mobile and
@@ -199,6 +202,16 @@ config ACPI_NUMA
 	depends on (X86 || IA64)
 	default y if IA64_GENERIC || IA64_SGI_SN2
 
+config ACPI_WMI
+	tristate "WMI (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  This driver adds support for the ACPI-WMI mapper device (PNP0C14)
+	  found on some systems.
+
+	  NOTE: You will need another driver or userspace application on top of
+	  this to actually use anything defined in the ACPI-WMI mapper.
+
 config ACPI_ASUS
         tristate "ASUS/Medion Laptop Extras"
 	depends on X86
@@ -263,8 +276,10 @@ config ACPI_CUSTOM_DSDT
 	depends on !STANDALONE
 	default n 
 	help
-	  This option is to load a custom ACPI DSDT
+	  This option supports a custom DSDT by linking it into the kernel.
-	  If you don't know what that is, say N.
+	  See Documentation/acpi/dsdt-override.txt
+
+	  If unsure, say N.
 
 config ACPI_CUSTOM_DSDT_FILE
 	string "Custom DSDT Table file to include"
@@ -274,6 +289,17 @@ config ACPI_CUSTOM_DSDT_FILE
 	  Enter the full path name to the file which includes the AmlCode
 	  declaration.
 
+config ACPI_CUSTOM_DSDT_INITRD
+	bool "Read Custom DSDT from initramfs"
+	depends on BLK_DEV_INITRD
+	default n
+	help
+	  This option supports a custom DSDT by optionally loading it from initrd.
+	  See Documentation/acpi/dsdt-override.txt
+
+	  If you are not using this feature now, but may use it later,
+	  it is safe to say Y here.
+
 config ACPI_BLACKLIST_YEAR
 	int "Disable ACPI for systems before Jan 1st this year" if X86_32
 	default 0

drivers/acpi/Makefile

@@ -55,6 +55,7 @@ obj-$(CONFIG_ACPI_THERMAL)	+= thermal.o
 obj-$(CONFIG_ACPI_SYSTEM)	+= system.o event.o
 obj-$(CONFIG_ACPI_DEBUG)	+= debug.o
 obj-$(CONFIG_ACPI_NUMA)		+= numa.o
+obj-$(CONFIG_ACPI_WMI)		+= wmi.o
 obj-$(CONFIG_ACPI_ASUS)		+= asus_acpi.o
 obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 obj-$(CONFIG_ACPI_HOTPLUG_MEMORY)	+= acpi_memhotplug.o

drivers/acpi/asus_acpi.c

@@ -142,6 +142,7 @@ struct asus_hotk {
 		xxN,		//M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
 		A4S,            //Z81sp
 		//(Centrino)
+		F3Sa,
 		END_MODEL
 	} model;		//Models currently supported
 	u16 event_count[128];	//count for each event TODO make this better
@@ -405,7 +406,20 @@ static struct model_data model_conf[END_MODEL] = {
 		.brightness_get    = "GPLV",
 		.mt_bt_switch      = "BLED",
 		.mt_wled           = "WLED"
-	}
+	},
+
+	{
+		.name		= "F3Sa",
+		.mt_bt_switch	= "BLED",
+		.mt_wled	= "WLED",
+		.mt_mled	= "MLED",
+		.brightness_get	= "GPLV",
+		.brightness_set	= "SPLV",
+		.mt_lcd_switch	= "\\_SB.PCI0.SBRG.EC0._Q10",
+		.lcd_status	= "\\_SB.PCI0.SBRG.EC0.RPIN",
+		.display_get	= "\\ADVG",
+		.display_set	= "SDSP",
+	},
 
 };
 
@@ -710,15 +724,8 @@ static int get_lcd_state(void)
 {
 	int lcd = 0;
 
-	if (hotk->model != L3H) {
+	if (hotk->model == L3H) {
-		/* We don't have to check anything if we are here */
+		/* L3H and the like have to be handled differently */
-		if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd))
-			printk(KERN_WARNING
-			       "Asus ACPI: Error reading LCD status\n");
-
-		if (hotk->model == L2D)
-			lcd = ~lcd;
-	} else {		/* L3H and the like have to be handled differently */
 		acpi_status status = 0;
 		struct acpi_object_list input;
 		union acpi_object mt_params[2];
@@ -745,6 +752,32 @@ static int get_lcd_state(void)
 		if (out_obj.type == ACPI_TYPE_INTEGER)
 			/* That's what the AML code does */
 			lcd = out_obj.integer.value >> 8;
+	} else if (hotk->model == F3Sa) {
+		unsigned long tmp;
+		union acpi_object param;
+		struct acpi_object_list input;
+		acpi_status status;
+
+		/* Read pin 11 */
+		param.type = ACPI_TYPE_INTEGER;
+		param.integer.value = 0x11;
+		input.count = 1;
+		input.pointer = &param;
+
+		status = acpi_evaluate_integer(NULL, hotk->methods->lcd_status,
+						&input, &tmp);
+		if (status != AE_OK)
+			return -1;
+
+		lcd = tmp;
+	} else {
+		/* We don't have to check anything if we are here */
+		if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd))
+			printk(KERN_WARNING
+			       "Asus ACPI: Error reading LCD status\n");
+
+		if (hotk->model == L2D)
+			lcd = ~lcd;
 	}
 
 	return (lcd & 1);
@@ -1134,6 +1167,8 @@ static int asus_model_match(char *model)
 		return W5A;
 	else if (strncmp(model, "A4S", 3) == 0)
 		return A4S;
+	else if (strncmp(model, "F3Sa", 4) == 0)
+		return F3Sa;
 	else
 		return END_MODEL;
 }

drivers/acpi/battery.c

@@ -194,6 +194,9 @@ static int acpi_battery_get_property(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_MANUFACTURER:
 		val->strval = battery->oem_info;
 		break;
+	case POWER_SUPPLY_PROP_SERIAL_NUMBER:
+		val->strval = battery->serial_number;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -212,6 +215,7 @@ static enum power_supply_property charge_battery_props[] = {
 	POWER_SUPPLY_PROP_CHARGE_NOW,
 	POWER_SUPPLY_PROP_MODEL_NAME,
 	POWER_SUPPLY_PROP_MANUFACTURER,
+	POWER_SUPPLY_PROP_SERIAL_NUMBER,
 };
 
 static enum power_supply_property energy_battery_props[] = {
@@ -226,6 +230,7 @@ static enum power_supply_property energy_battery_props[] = {
 	POWER_SUPPLY_PROP_ENERGY_NOW,
 	POWER_SUPPLY_PROP_MODEL_NAME,
 	POWER_SUPPLY_PROP_MANUFACTURER,
+	POWER_SUPPLY_PROP_SERIAL_NUMBER,
 };
 #endif
 

drivers/acpi/bay.c

@@ -46,6 +46,12 @@ MODULE_LICENSE("GPL");
 	printk(KERN_DEBUG PREFIX "%s: %s\n", prefix, s); }
 static void bay_notify(acpi_handle handle, u32 event, void *data);
 
+static const struct acpi_device_id bay_device_ids[] = {
+	{"LNXIOBAY", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, bay_device_ids);
+
 struct bay {
 	acpi_handle handle;
 	char *name;
@@ -128,7 +134,7 @@ static ssize_t show_present(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%d\n", bay_present(bay));
 
 }
-DEVICE_ATTR(present, S_IRUGO, show_present, NULL);
+static DEVICE_ATTR(present, S_IRUGO, show_present, NULL);
 
 /*
  * write_eject - write method for "eject" file in sysfs
@@ -144,7 +150,7 @@ static ssize_t write_eject(struct device *dev, struct device_attribute *attr,
 	eject_device(bay->handle);
 	return count;
 }
-DEVICE_ATTR(eject, S_IWUSR, NULL, write_eject);
+static DEVICE_ATTR(eject, S_IWUSR, NULL, write_eject);
 
 /**
  * is_ata - see if a device is an ata device

drivers/acpi/blacklist.c

@@ -70,8 +70,6 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
 	/* IBM 600E - _ADR should return 7, but it returns 1 */
 	{"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
 	 "Incorrect _ADR", 1},
-	{"ASUS\0\0", "P2B-S   ", 0, ACPI_SIG_DSDT, all_versions,
-	 "Bogus PCI routing", 1},
 
 	{""}
 };
@@ -208,33 +206,35 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 * Disable OSI(Linux) warnings on all "Acer, inc."
 	 *
 	 * _OSI(Linux) disables the latest Windows BIOS code:
+	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
+	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
 	 * _OSI(Linux) effect unknown:
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
 	 */
-	{
+	/*
-	.callback = dmi_disable_osi_linux,
+	 * note that dmi_check_system() uses strstr()
-	.ident = "Acer, inc.",
+	 * to match sub-strings rather than !strcmp(),
-	.matches = {
+	 * so "Acer" below matches "Acer, inc." above.
-		     DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."),
+	 */
-		},
-	},
 	/*
 	 * Disable OSI(Linux) warnings on all "Acer"
 	 *
 	 * _OSI(Linux) effect unknown:
-	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
+	 *
+	 * _OSI(Linux) is a NOP:
+	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
 	 */
 	{
-	.callback = dmi_unknown_osi_linux,
+	.callback = dmi_disable_osi_linux,
 	.ident = "Acer",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -242,21 +242,22 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	/*
 	 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
+	 * Disable OSI(Linux) warnings on all "Apple Inc."
 	 *
 	 * _OSI(Linux) confirmed to be a NOP:
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
+	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
 	 * _OSI(Linux) effect unknown:
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
-	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
 	 */
 	{
 	.callback = dmi_disable_osi_linux,
 	.ident = "Apple",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+		     DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
 		},
 	},
 	/*
@@ -294,13 +295,13 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
 	 */
 	{
-	.callback = dmi_unknown_osi_linux,
+	.callback = dmi_disable_osi_linux,
 	.ident = "Compal",
 	.matches = {
 		     DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
 		},
 	},
-	{ /* OSI(Linux) touches USB, breaks suspend to disk */
+	{ /* OSI(Linux) touches USB, unknown side-effect */
 	.callback = dmi_disable_osi_linux,
 	.ident = "Dell Dimension 5150",
 	.matches = {
@@ -310,7 +311,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	{ /* OSI(Linux) is a NOP */
 	.callback = dmi_disable_osi_linux,
-	.ident = "Dell",
+	.ident = "Dell i1501",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
@@ -318,7 +319,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	{ /* OSI(Linux) effect unknown */
 	.callback = dmi_unknown_osi_linux,
-	.ident = "Dell",
+	.ident = "Dell Latitude D830",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
@@ -326,7 +327,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	{ /* OSI(Linux) effect unknown */
 	.callback = dmi_unknown_osi_linux,
-	.ident = "Dell",
+	.ident = "Dell OP GX620",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
@@ -334,15 +335,23 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	{ /* OSI(Linux) effect unknown */
 	.callback = dmi_unknown_osi_linux,
-	.ident = "Dell",
+	.ident = "Dell PE 1900",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
 		},
 	},
+	{ /* OSI(Linux) is a NOP */
+	.callback = dmi_disable_osi_linux,
+	.ident = "Dell PE R200",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R200"),
+		},
+	},
 	{ /* OSI(Linux) touches USB */
 	.callback = dmi_disable_osi_linux,
-	.ident = "Dell",
+	.ident = "Dell PR 390",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
@@ -358,7 +367,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	{ /* OSI(Linux) effect unknown */
 	.callback = dmi_unknown_osi_linux,
-	.ident = "Dell",
+	.ident = "Dell PE SC440",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
@@ -474,6 +483,11 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 *
 	 * _OSI(Linux) confirmed to be a NOP:
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
+	 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
+	 *
+	 * unknown:
+	 * DMI_MATCH(DMI_PRODUCT_NAME, "S1-MDGDG"),
+	 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
 	 */
 	{
 	.callback = dmi_disable_osi_linux,
@@ -516,7 +530,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
 	 */
 	{
-	.callback = dmi_unknown_osi_linux,
+	.callback = dmi_disable_osi_linux,
 	.ident = "Sony",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),

drivers/acpi/bus.c

@@ -122,6 +122,31 @@ int acpi_bus_get_status(struct acpi_device *device)
 
 EXPORT_SYMBOL(acpi_bus_get_status);
 
+void acpi_bus_private_data_handler(acpi_handle handle,
+				   u32 function, void *context)
+{
+	return;
+}
+EXPORT_SYMBOL(acpi_bus_private_data_handler);
+
+int acpi_bus_get_private_data(acpi_handle handle, void **data)
+{
+	acpi_status status = AE_OK;
+
+	if (!*data)
+		return -EINVAL;
+
+	status = acpi_get_data(handle, acpi_bus_private_data_handler, data);
+	if (ACPI_FAILURE(status) || !*data) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
+				handle));
+		return -ENODEV;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(acpi_bus_get_private_data);
+
 /* --------------------------------------------------------------------------
                                  Power Management
    -------------------------------------------------------------------------- */
@@ -366,7 +391,6 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
 	return 0;
 }
 
-EXPORT_SYMBOL(acpi_bus_receive_event);
 #endif	/* CONFIG_ACPI_PROC_EVENT */
 
 /* --------------------------------------------------------------------------

drivers/acpi/debug.c

@@ -130,6 +130,63 @@ static int param_get_debug_level(char *buffer, struct kernel_param *kp) {
 module_param_call(debug_layer, param_set_uint, param_get_debug_layer, &acpi_dbg_layer, 0644);
 module_param_call(debug_level, param_set_uint, param_get_debug_level, &acpi_dbg_level, 0644);
 
+static char trace_method_name[6];
+module_param_string(trace_method_name, trace_method_name, 6, 0644);
+static unsigned int trace_debug_layer;
+module_param(trace_debug_layer, uint, 0644);
+static unsigned int trace_debug_level;
+module_param(trace_debug_level, uint, 0644);
+
+static int param_set_trace_state(const char *val, struct kernel_param *kp)
+{
+	int result = 0;
+
+	if (!strncmp(val, "enable", strlen("enable") - 1)) {
+		result = acpi_debug_trace(trace_method_name, trace_debug_level,
+					  trace_debug_layer, 0);
+		if (result)
+			result = -EBUSY;
+		goto exit;
+	}
+
+	if (!strncmp(val, "disable", strlen("disable") - 1)) {
+		int name = 0;
+		result = acpi_debug_trace((char *)&name, trace_debug_level,
+					  trace_debug_layer, 0);
+		if (result)
+			result = -EBUSY;
+		goto exit;
+	}
+
+	if (!strncmp(val, "1", 1)) {
+		result = acpi_debug_trace(trace_method_name, trace_debug_level,
+					  trace_debug_layer, 1);
+		if (result)
+			result = -EBUSY;
+		goto exit;
+	}
+
+	result = -EINVAL;
+exit:
+	return result;
+}
+
+static int param_get_trace_state(char *buffer, struct kernel_param *kp)
+{
+	if (!acpi_gbl_trace_method_name)
+		return sprintf(buffer, "disable");
+	else {
+		if (acpi_gbl_trace_flags & 1)
+			return sprintf(buffer, "1");
+		else
+			return sprintf(buffer, "enable");
+	}
+	return 0;
+}
+
+module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
+		  NULL, 0644);
+
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */

drivers/acpi/dispatcher/dsopcode.c

@@ -359,7 +359,9 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
 
 	status = acpi_os_validate_address(obj_desc->region.space_id,
 					  obj_desc->region.address,
-					  (acpi_size) obj_desc->region.length);
+					  (acpi_size) obj_desc->region.length,
+					  acpi_ut_get_node_name(node));
+
 	if (ACPI_FAILURE(status)) {
 		/*
 		 * Invalid address/length. We will emit an error message and mark

drivers/acpi/dock.c

@@ -51,6 +51,12 @@ static struct atomic_notifier_head dock_notifier_list;
 static struct platform_device *dock_device;
 static char dock_device_name[] = "dock";
 
+static const struct acpi_device_id dock_device_ids[] = {
+	{"LNXDOCK", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, dock_device_ids);
+
 struct dock_station {
 	acpi_handle handle;
 	unsigned long last_dock_time;
@@ -680,7 +686,7 @@ static ssize_t show_docked(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%d\n", dock_present(dock_station));
 
 }
-DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
+static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
 
 /*
  * show_flags - read method for flags file in sysfs
@@ -691,7 +697,7 @@ static ssize_t show_flags(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
 
 }
-DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
+static DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
 
 /*
  * write_undock - write method for "undock" file in sysfs
@@ -707,7 +713,7 @@ static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
 	ret = handle_eject_request(dock_station, ACPI_NOTIFY_EJECT_REQUEST);
 	return ret ? ret: count;
 }
-DEVICE_ATTR(undock, S_IWUSR, NULL, write_undock);
+static DEVICE_ATTR(undock, S_IWUSR, NULL, write_undock);
 
 /*
  * show_dock_uid - read method for "uid" file in sysfs
@@ -723,7 +729,7 @@ static ssize_t show_dock_uid(struct device *dev,
 
 	return snprintf(buf, PAGE_SIZE, "%lx\n", lbuf);
 }
-DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
+static DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
 
 /**
  * dock_add - add a new dock station

drivers/acpi/ec.c

@@ -573,7 +573,7 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 		      void *handler_context, void *region_context)
 {
 	struct acpi_ec *ec = handler_context;
-	int result = 0, i = 0;
+	int result = 0, i;
 	u8 temp = 0;
 
 	if ((address > 0xFF) || !value || !handler_context)
@@ -585,7 +585,18 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (bits != 8 && acpi_strict)
 		return AE_BAD_PARAMETER;
 
-	while (bits - i > 0) {
+	acpi_ec_burst_enable(ec);
+
+	if (function == ACPI_READ) {
+		result = acpi_ec_read(ec, address, &temp);
+		*value = temp;
+	} else {
+		temp = 0xff & (*value);
+		result = acpi_ec_write(ec, address, temp);
+	}
+
+	for (i = 8; unlikely(bits - i > 0); i += 8) {
+		++address;
 		if (function == ACPI_READ) {
 			result = acpi_ec_read(ec, address, &temp);
 			(*value) |= ((acpi_integer)temp) << i;
@@ -593,10 +604,10 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 			temp = 0xff & ((*value) >> i);
 			result = acpi_ec_write(ec, address, temp);
 		}
-		i += 8;
-		++address;
 	}
 
+	acpi_ec_burst_disable(ec);
+
 	switch (result) {
 	case -EINVAL:
 		return AE_BAD_PARAMETER;

drivers/acpi/event.c

@@ -109,6 +109,34 @@ static const struct file_operations acpi_system_event_ops = {
 };
 #endif	/* CONFIG_ACPI_PROC_EVENT */
 
+/* ACPI notifier chain */
+BLOCKING_NOTIFIER_HEAD(acpi_chain_head);
+
+int acpi_notifier_call_chain(struct acpi_device *dev, u32 type, u32 data)
+{
+	struct acpi_bus_event event;
+
+	strcpy(event.device_class, dev->pnp.device_class);
+	strcpy(event.bus_id, dev->pnp.bus_id);
+	event.type = type;
+	event.data = data;
+	return (blocking_notifier_call_chain(&acpi_chain_head, 0, (void *)&event)
+                        == NOTIFY_BAD) ? -EINVAL : 0;
+}
+EXPORT_SYMBOL(acpi_notifier_call_chain);
+
+int register_acpi_notifier(struct notifier_block *nb)
+{
+	return blocking_notifier_chain_register(&acpi_chain_head, nb);
+}
+EXPORT_SYMBOL(register_acpi_notifier);
+
+int unregister_acpi_notifier(struct notifier_block *nb)
+{
+	return blocking_notifier_chain_unregister(&acpi_chain_head, nb);
+}
+EXPORT_SYMBOL(unregister_acpi_notifier);
+
 #ifdef CONFIG_NET
 static unsigned int acpi_event_seqnum;
 struct acpi_genl_event {

drivers/acpi/events/evevent.c

@@ -259,7 +259,7 @@ u32 acpi_ev_fixed_event_detect(void)
 			enable_bit_mask)) {
 
 			/* Found an active (signalled) event */
-
+			acpi_os_fixed_event_count(i);
 			int_status |= acpi_ev_fixed_event_dispatch((u32) i);
 		}
 	}

drivers/acpi/events/evgpe.c

@@ -270,18 +270,18 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 	case ACPI_GPE_TYPE_WAKE_RUN:
 		ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
 
-		/*lint -fallthrough */
+		/* fallthrough */
 
 	case ACPI_GPE_TYPE_RUNTIME:
 
 		/* Disable the requested runtime GPE */
 
 		ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
-		status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
+
-		break;
+		/* fallthrough */
 
 	default:
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		acpi_hw_write_gpe_enable_reg(gpe_event_info);
 	}
 
 	return_ACPI_STATUS(AE_OK);
@@ -501,6 +501,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
  *              an interrupt handler.
  *
  ******************************************************************************/
+static void acpi_ev_asynch_enable_gpe(void *context);
 
 static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 {
@@ -576,22 +577,30 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 					 method_node)));
 		}
 	}
+	/* Defer enabling of GPE until all notify handlers are done */
+	acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_asynch_enable_gpe,
+				gpe_event_info);
+	return_VOID;
+}
 
-	if ((local_gpe_event_info.flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
+static void acpi_ev_asynch_enable_gpe(void *context)
+{
+	struct acpi_gpe_event_info *gpe_event_info = context;
+	acpi_status status;
+	if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
 	    ACPI_GPE_LEVEL_TRIGGERED) {
 		/*
 		 * GPE is level-triggered, we clear the GPE status bit after
 		 * handling the event.
 		 */
-		status = acpi_hw_clear_gpe(&local_gpe_event_info);
+		status = acpi_hw_clear_gpe(gpe_event_info);
 		if (ACPI_FAILURE(status)) {
 			return_VOID;
 		}
 	}
 
 	/* Enable this GPE */
-
+	(void)acpi_hw_write_gpe_enable_reg(gpe_event_info);
-	(void)acpi_hw_write_gpe_enable_reg(&local_gpe_event_info);
 	return_VOID;
 }
 
@@ -618,7 +627,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
 
 	ACPI_FUNCTION_TRACE(ev_gpe_dispatch);
 
-	acpi_gpe_count++;
+	acpi_os_gpe_count(gpe_number);
 
 	/*
 	 * If edge-triggered, clear the GPE status bit now.  Note that

drivers/acpi/fan.c

@@ -30,7 +30,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <asm/uaccess.h>
-
+#include <linux/thermal.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
@@ -68,9 +68,55 @@ static struct acpi_driver acpi_fan_driver = {
 		},
 };
 
+/* thermal cooling device callbacks */
+static int fan_get_max_state(struct thermal_cooling_device *cdev, char *buf)
+{
+	/* ACPI fan device only support two states: ON/OFF */
+	return sprintf(buf, "1\n");
+}
+
+static int fan_get_cur_state(struct thermal_cooling_device *cdev, char *buf)
+{
+	struct acpi_device *device = cdev->devdata;
+	int state;
+	int result;
+
+	if (!device)
+		return -EINVAL;
+
+	result = acpi_bus_get_power(device->handle, &state);
+	if (result)
+		return result;
+
+	return sprintf(buf, "%s\n", state == ACPI_STATE_D3 ? "0" :
+			 (state == ACPI_STATE_D0 ? "1" : "unknown"));
+}
+
+static int
+fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned int state)
+{
+	struct acpi_device *device = cdev->devdata;
+	int result;
+
+	if (!device || (state != 0 && state != 1))
+		return -EINVAL;
+
+	result = acpi_bus_set_power(device->handle,
+				state ? ACPI_STATE_D0 : ACPI_STATE_D3);
+
+	return result;
+}
+
+static struct thermal_cooling_device_ops fan_cooling_ops = {
+	.get_max_state = fan_get_max_state,
+	.get_cur_state = fan_get_cur_state,
+	.set_cur_state = fan_set_cur_state,
+};
+
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS
 
 static struct proc_dir_entry *acpi_fan_dir;
 
@@ -171,7 +217,17 @@ static int acpi_fan_remove_fs(struct acpi_device *device)
 
 	return 0;
 }
+#else
+static int acpi_fan_add_fs(struct acpi_device *device)
+{
+	return 0;
+}
 
+static int acpi_fan_remove_fs(struct acpi_device *device)
+{
+	return 0;
+}
+#endif
 /* --------------------------------------------------------------------------
                                  Driver Interface
    -------------------------------------------------------------------------- */
@@ -179,9 +235,8 @@ static int acpi_fan_remove_fs(struct acpi_device *device)
 static int acpi_fan_add(struct acpi_device *device)
 {
 	int result = 0;
-	struct acpi_fan *fan = NULL;
 	int state = 0;
-
+	struct thermal_cooling_device *cdev;
 
 	if (!device)
 		return -EINVAL;
@@ -199,6 +254,25 @@ static int acpi_fan_add(struct acpi_device *device)
 	acpi_bus_set_power(device->handle, state);
 	device->flags.force_power_state = 0;
 
+	cdev = thermal_cooling_device_register("Fan", device,
+						&fan_cooling_ops);
+	if (cdev)
+		printk(KERN_INFO PREFIX
+			"%s is registered as cooling_device%d\n",
+			device->dev.bus_id, cdev->id);
+	else
+		goto end;
+	acpi_driver_data(device) = cdev;
+	result = sysfs_create_link(&device->dev.kobj, &cdev->device.kobj,
+					"thermal_cooling");
+	if (result)
+		return result;
+
+	result = sysfs_create_link(&cdev->device.kobj, &device->dev.kobj,
+                                       "device");
+        if (result)
+                return result;
+
 	result = acpi_fan_add_fs(device);
 	if (result)
 		goto end;
@@ -208,18 +282,20 @@ static int acpi_fan_add(struct acpi_device *device)
 	       !device->power.state ? "on" : "off");
 
       end:
-	if (result)
-		kfree(fan);
-
 	return result;
 }
 
 static int acpi_fan_remove(struct acpi_device *device, int type)
 {
-	if (!device || !acpi_driver_data(device))
+	struct thermal_cooling_device *cdev = acpi_driver_data(device);
+
+	if (!device || !cdev)
 		return -EINVAL;
 
 	acpi_fan_remove_fs(device);
+	sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+	sysfs_remove_link(&cdev->device.kobj, "device");
+	thermal_cooling_device_unregister(cdev);
 
 	return 0;
 }
@@ -261,10 +337,12 @@ static int __init acpi_fan_init(void)
 	int result = 0;
 
 
+#ifdef CONFIG_ACPI_PROCFS
 	acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir);
 	if (!acpi_fan_dir)
 		return -ENODEV;
 	acpi_fan_dir->owner = THIS_MODULE;
+#endif
 
 	result = acpi_bus_register_driver(&acpi_fan_driver);
 	if (result < 0) {

drivers/acpi/glue.c

@@ -36,8 +36,6 @@ int register_acpi_bus_type(struct acpi_bus_type *type)
 	return -ENODEV;
 }
 
-EXPORT_SYMBOL(register_acpi_bus_type);
-
 int unregister_acpi_bus_type(struct acpi_bus_type *type)
 {
 	if (acpi_disabled)
@@ -53,8 +51,6 @@ int unregister_acpi_bus_type(struct acpi_bus_type *type)
 	return -ENODEV;
 }
 
-EXPORT_SYMBOL(unregister_acpi_bus_type);
-
 static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
 {
 	struct acpi_bus_type *tmp, *ret = NULL;

drivers/acpi/hardware/hwsleep.c

@@ -286,13 +286,13 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 	}
 
 	/*
+	 * 1) Disable/Clear all GPEs
 	 * 2) Enable all wakeup GPEs
 	 */
 	status = acpi_hw_disable_all_gpes();
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
-
 	acpi_gbl_system_awake_and_running = FALSE;
 
 	status = acpi_hw_enable_all_wakeup_gpes();

drivers/acpi/namespace/nsxfeval.c

@@ -443,6 +443,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 	struct acpica_device_id hid;
 	struct acpi_compatible_id_list *cid;
 	acpi_native_uint i;
+	int found;
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE(status)) {
@@ -496,16 +497,19 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 
 			/* Walk the CID list */
 
+			found = 0;
 			for (i = 0; i < cid->count; i++) {
 				if (ACPI_STRNCMP(cid->id[i].value, info->hid,
 						 sizeof(struct
-							acpi_compatible_id)) !=
+							acpi_compatible_id)) ==
 				    0) {
-					ACPI_FREE(cid);
+					found = 1;
-					return (AE_OK);
+					break;
 				}
 			}
 			ACPI_FREE(cid);
+			if (!found)
+				return (AE_OK);
 		}
 	}
 

drivers/acpi/numa.c

@@ -78,6 +78,7 @@ int acpi_map_pxm_to_node(int pxm)
 	return node;
 }
 
+#if 0
 void __cpuinit acpi_unmap_pxm_to_node(int node)
 {
 	int pxm = node_to_pxm_map[node];
@@ -85,6 +86,7 @@ void __cpuinit acpi_unmap_pxm_to_node(int node)
 	node_to_pxm_map[node] = PXM_INVAL;
 	node_clear(node, nodes_found_map);
 }
+#endif  /*  0  */
 
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
@@ -247,7 +249,6 @@ int acpi_get_pxm(acpi_handle h)
 	} while (ACPI_SUCCESS(status));
 	return -1;
 }
-EXPORT_SYMBOL(acpi_get_pxm);
 
 int acpi_get_node(acpi_handle *handle)
 {

drivers/acpi/osl.c

@@ -44,6 +44,8 @@
 #include <asm/uaccess.h>
 
 #include <linux/efi.h>
+#include <linux/ioport.h>
+#include <linux/list.h>
 
 #define _COMPONENT		ACPI_OS_SERVICES
 ACPI_MODULE_NAME("osl");
@@ -74,9 +76,25 @@ static void *acpi_irq_context;
 static struct workqueue_struct *kacpid_wq;
 static struct workqueue_struct *kacpi_notify_wq;
 
+struct acpi_res_list {
+	resource_size_t start;
+	resource_size_t end;
+	acpi_adr_space_type resource_type; /* IO port, System memory, ...*/
+	char name[5];   /* only can have a length of 4 chars, make use of this
+			   one instead of res->name, no need to kalloc then */
+	struct list_head resource_list;
+};
+
+static LIST_HEAD(resource_list_head);
+static DEFINE_SPINLOCK(acpi_res_lock);
+
 #define	OSI_STRING_LENGTH_MAX 64	/* arbitrary */
 static char osi_additional_string[OSI_STRING_LENGTH_MAX];
 
+#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
+static int acpi_no_initrd_override;
+#endif
+
 /*
  * "Ode to _OSI(Linux)"
  *
@@ -120,7 +138,7 @@ static char osi_additional_string[OSI_STRING_LENGTH_MAX];
  */
 #define OSI_LINUX_ENABLE 0
 
-struct osi_linux {
+static struct osi_linux {
 	unsigned int	enable:1;
 	unsigned int	dmi:1;
 	unsigned int	cmdline:1;
@@ -219,8 +237,6 @@ void acpi_os_printf(const char *fmt, ...)
 	va_end(args);
 }
 
-EXPORT_SYMBOL(acpi_os_printf);
-
 void acpi_os_vprintf(const char *fmt, va_list args)
 {
 	static char buffer[512];
@@ -250,11 +266,16 @@ acpi_physical_address __init acpi_os_get_root_pointer(void)
 			       "System description tables not found\n");
 			return 0;
 		}
-	} else
+	} else {
-		return acpi_find_rsdp();
+		acpi_physical_address pa = 0;
+
+		acpi_find_root_pointer(&pa);
+		return pa;
+	}
 }
 
-void __iomem *acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
+void __iomem *__init_refok
+acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 {
 	if (phys > ULONG_MAX) {
 		printk(KERN_ERR PREFIX "Cannot map memory that high\n");
@@ -312,6 +333,67 @@ acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
 	return AE_OK;
 }
 
+#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
+struct acpi_table_header *acpi_find_dsdt_initrd(void)
+{
+	struct file *firmware_file;
+	mm_segment_t oldfs;
+	unsigned long len, len2;
+	struct acpi_table_header *dsdt_buffer, *ret = NULL;
+	struct kstat stat;
+	char *ramfs_dsdt_name = "/DSDT.aml";
+
+	printk(KERN_INFO PREFIX "Checking initramfs for custom DSDT");
+
+	/*
+	 * Never do this at home, only the user-space is allowed to open a file.
+	 * The clean way would be to use the firmware loader.
+	 * But this code must be run before there is any userspace available.
+	 * A static/init firmware infrastructure doesn't exist yet...
+	 */
+	if (vfs_stat(ramfs_dsdt_name, &stat) < 0)
+		return ret;
+
+	len = stat.size;
+	/* check especially against empty files */
+	if (len <= 4) {
+		printk(KERN_ERR PREFIX "Failed: DSDT only %lu bytes.\n", len);
+		return ret;
+	}
+
+	firmware_file = filp_open(ramfs_dsdt_name, O_RDONLY, 0);
+	if (IS_ERR(firmware_file)) {
+		printk(KERN_ERR PREFIX "Failed to open %s.\n", ramfs_dsdt_name);
+		return ret;
+	}
+
+	dsdt_buffer = kmalloc(len, GFP_ATOMIC);
+	if (!dsdt_buffer) {
+		printk(KERN_ERR PREFIX "Failed to allocate %lu bytes.\n", len);
+		goto err;
+	}
+
+	oldfs = get_fs();
+	set_fs(KERNEL_DS);
+	len2 = vfs_read(firmware_file, (char __user *)dsdt_buffer, len,
+		&firmware_file->f_pos);
+	set_fs(oldfs);
+	if (len2 < len) {
+		printk(KERN_ERR PREFIX "Failed to read %lu bytes from %s.\n",
+			len, ramfs_dsdt_name);
+		ACPI_FREE(dsdt_buffer);
+		goto err;
+	}
+
+	printk(KERN_INFO PREFIX "Found %lu byte DSDT in %s.\n",
+			len, ramfs_dsdt_name);
+	ret = dsdt_buffer;
+err:
+	filp_close(firmware_file, NULL);
+	return ret;
+}
+#endif
+
 acpi_status
 acpi_os_table_override(struct acpi_table_header * existing_table,
 		       struct acpi_table_header ** new_table)
@@ -319,20 +401,52 @@ acpi_os_table_override(struct acpi_table_header * existing_table,
 	if (!existing_table || !new_table)
 		return AE_BAD_PARAMETER;
 
+	*new_table = NULL;
+
 #ifdef CONFIG_ACPI_CUSTOM_DSDT
 	if (strncmp(existing_table->signature, "DSDT", 4) == 0)
 		*new_table = (struct acpi_table_header *)AmlCode;
-	else
-		*new_table = NULL;
-#else
-	*new_table = NULL;
 #endif
+#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
+	if ((strncmp(existing_table->signature, "DSDT", 4) == 0) &&
+	    !acpi_no_initrd_override) {
+		struct acpi_table_header *initrd_table;
+
+		initrd_table = acpi_find_dsdt_initrd();
+		if (initrd_table)
+			*new_table = initrd_table;
+	}
+#endif
+	if (*new_table != NULL) {
+		printk(KERN_WARNING PREFIX "Override [%4.4s-%8.8s], "
+			   "this is unsafe: tainting kernel\n",
+		       existing_table->signature,
+		       existing_table->oem_table_id);
+		add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
+	}
 	return AE_OK;
 }
 
+#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
+int __init acpi_no_initrd_override_setup(char *s)
+{
+	acpi_no_initrd_override = 1;
+	return 1;
+}
+__setup("acpi_no_initrd_override", acpi_no_initrd_override_setup);
+#endif
+
 static irqreturn_t acpi_irq(int irq, void *dev_id)
 {
-	return (*acpi_irq_handler) (acpi_irq_context) ? IRQ_HANDLED : IRQ_NONE;
+	u32 handled;
+
+	handled = (*acpi_irq_handler) (acpi_irq_context);
+
+	if (handled) {
+		acpi_irq_handled++;
+		return IRQ_HANDLED;
+	} else
+		return IRQ_NONE;
 }
 
 acpi_status
@@ -341,6 +455,8 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler,
 {
 	unsigned int irq;
 
+	acpi_irq_stats_init();
+
 	/*
 	 * Ignore the GSI from the core, and use the value in our copy of the
 	 * FADT. It may not be the same if an interrupt source override exists
@@ -384,8 +500,6 @@ void acpi_os_sleep(acpi_integer ms)
 	schedule_timeout_interruptible(msecs_to_jiffies(ms));
 }
 
-EXPORT_SYMBOL(acpi_os_sleep);
-
 void acpi_os_stall(u32 us)
 {
 	while (us) {
@@ -399,8 +513,6 @@ void acpi_os_stall(u32 us)
 	}
 }
 
-EXPORT_SYMBOL(acpi_os_stall);
-
 /*
  * Support ACPI 3.0 AML Timer operand
  * Returns 64-bit free-running, monotonically increasing timer
@@ -550,8 +662,6 @@ acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 	return (result ? AE_ERROR : AE_OK);
 }
 
-EXPORT_SYMBOL(acpi_os_read_pci_configuration);
-
 acpi_status
 acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 				acpi_integer value, u32 width)
@@ -661,25 +771,6 @@ static void acpi_os_execute_deferred(struct work_struct *work)
 	dpc->function(dpc->context);
 	kfree(dpc);
 
-	/* Yield cpu to notify thread */
-	cond_resched();
-
-	return;
-}
-
-static void acpi_os_execute_notify(struct work_struct *work)
-{
-	struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
-
-	if (!dpc) {
-		printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
-		return;
-	}
-
-	dpc->function(dpc->context);
-
-	kfree(dpc);
-
 	return;
 }
 
@@ -703,7 +794,7 @@ acpi_status acpi_os_execute(acpi_execute_type type,
 {
 	acpi_status status = AE_OK;
 	struct acpi_os_dpc *dpc;
-
+	struct workqueue_struct *queue;
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 			  "Scheduling function [%p(%p)] for deferred execution.\n",
 			  function, context));
@@ -727,20 +818,13 @@ acpi_status acpi_os_execute(acpi_execute_type type,
 	dpc->function = function;
 	dpc->context = context;
 
-	if (type == OSL_NOTIFY_HANDLER) {
+	INIT_WORK(&dpc->work, acpi_os_execute_deferred);
-		INIT_WORK(&dpc->work, acpi_os_execute_notify);
+	queue = (type == OSL_NOTIFY_HANDLER) ? kacpi_notify_wq : kacpid_wq;
-		if (!queue_work(kacpi_notify_wq, &dpc->work)) {
+	if (!queue_work(queue, &dpc->work)) {
-			status = AE_ERROR;
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			kfree(dpc);
+			  "Call to queue_work() failed.\n"));
-		}
+		status = AE_ERROR;
-	} else {
+		kfree(dpc);
-		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
-		if (!queue_work(kacpid_wq, &dpc->work)) {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Call to queue_work() failed.\n"));
-			status = AE_ERROR;
-			kfree(dpc);
-		}
 	}
 	return_ACPI_STATUS(status);
 }
@@ -793,8 +877,6 @@ acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
 	return AE_OK;
 }
 
-EXPORT_SYMBOL(acpi_os_create_semaphore);
-
 /*
  * TODO: A better way to delete semaphores?  Linux doesn't have a
  * 'delete_semaphore()' function -- may result in an invalid
@@ -818,8 +900,6 @@ acpi_status acpi_os_delete_semaphore(acpi_handle handle)
 	return AE_OK;
 }
 
-EXPORT_SYMBOL(acpi_os_delete_semaphore);
-
 /*
  * TODO: The kernel doesn't have a 'down_timeout' function -- had to
  * improvise.  The process is to sleep for one scheduler quantum
@@ -912,8 +992,6 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
 	return status;
 }
 
-EXPORT_SYMBOL(acpi_os_wait_semaphore);
-
 /*
  * TODO: Support for units > 1?
  */
@@ -936,8 +1014,6 @@ acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units)
 	return AE_OK;
 }
 
-EXPORT_SYMBOL(acpi_os_signal_semaphore);
-
 #ifdef ACPI_FUTURE_USAGE
 u32 acpi_os_get_line(char *buffer)
 {
@@ -981,8 +1057,6 @@ acpi_status acpi_os_signal(u32 function, void *info)
 	return AE_OK;
 }
 
-EXPORT_SYMBOL(acpi_os_signal);
-
 static int __init acpi_os_name_setup(char *str)
 {
 	char *p = acpi_os_name;
@@ -1102,6 +1176,128 @@ static int __init acpi_wake_gpes_always_on_setup(char *str)
 
 __setup("acpi_wake_gpes_always_on", acpi_wake_gpes_always_on_setup);
 
+/* Check of resource interference between native drivers and ACPI
+ * OperationRegions (SystemIO and System Memory only).
+ * IO ports and memory declared in ACPI might be used by the ACPI subsystem
+ * in arbitrary AML code and can interfere with legacy drivers.
+ * acpi_enforce_resources= can be set to:
+ *
+ *   - strict           (2)
+ *     -> further driver trying to access the resources will not load
+ *   - lax (default)    (1)
+ *     -> further driver trying to access the resources will load, but you
+ *     get a system message that something might go wrong...
+ *
+ *   - no               (0)
+ *     -> ACPI Operation Region resources will not be registered
+ *
+ */
+#define ENFORCE_RESOURCES_STRICT 2
+#define ENFORCE_RESOURCES_LAX    1
+#define ENFORCE_RESOURCES_NO     0
+
+static unsigned int acpi_enforce_resources = ENFORCE_RESOURCES_LAX;
+
+static int __init acpi_enforce_resources_setup(char *str)
+{
+	if (str == NULL || *str == '\0')
+		return 0;
+
+	if (!strcmp("strict", str))
+		acpi_enforce_resources = ENFORCE_RESOURCES_STRICT;
+	else if (!strcmp("lax", str))
+		acpi_enforce_resources = ENFORCE_RESOURCES_LAX;
+	else if (!strcmp("no", str))
+		acpi_enforce_resources = ENFORCE_RESOURCES_NO;
+
+	return 1;
+}
+
+__setup("acpi_enforce_resources=", acpi_enforce_resources_setup);
+
+/* Check for resource conflicts between ACPI OperationRegions and native
+ * drivers */
+int acpi_check_resource_conflict(struct resource *res)
+{
+	struct acpi_res_list *res_list_elem;
+	int ioport;
+	int clash = 0;
+
+	if (acpi_enforce_resources == ENFORCE_RESOURCES_NO)
+		return 0;
+	if (!(res->flags & IORESOURCE_IO) && !(res->flags & IORESOURCE_MEM))
+		return 0;
+
+	ioport = res->flags & IORESOURCE_IO;
+
+	spin_lock(&acpi_res_lock);
+	list_for_each_entry(res_list_elem, &resource_list_head,
+			    resource_list) {
+		if (ioport && (res_list_elem->resource_type
+			       != ACPI_ADR_SPACE_SYSTEM_IO))
+			continue;
+		if (!ioport && (res_list_elem->resource_type
+				!= ACPI_ADR_SPACE_SYSTEM_MEMORY))
+			continue;
+
+		if (res->end < res_list_elem->start
+		    || res_list_elem->end < res->start)
+			continue;
+		clash = 1;
+		break;
+	}
+	spin_unlock(&acpi_res_lock);
+
+	if (clash) {
+		if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) {
+			printk(KERN_INFO "%sACPI: %s resource %s [0x%llx-0x%llx]"
+			       " conflicts with ACPI region %s"
+			       " [0x%llx-0x%llx]\n",
+			       acpi_enforce_resources == ENFORCE_RESOURCES_LAX
+			       ? KERN_WARNING : KERN_ERR,
+			       ioport ? "I/O" : "Memory", res->name,
+			       (long long) res->start, (long long) res->end,
+			       res_list_elem->name,
+			       (long long) res_list_elem->start,
+			       (long long) res_list_elem->end);
+			printk(KERN_INFO "ACPI: Device needs an ACPI driver\n");
+		}
+		if (acpi_enforce_resources == ENFORCE_RESOURCES_STRICT)
+			return -EBUSY;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(acpi_check_resource_conflict);
+
+int acpi_check_region(resource_size_t start, resource_size_t n,
+		      const char *name)
+{
+	struct resource res = {
+		.start = start,
+		.end   = start + n - 1,
+		.name  = name,
+		.flags = IORESOURCE_IO,
+	};
+
+	return acpi_check_resource_conflict(&res);
+}
+EXPORT_SYMBOL(acpi_check_region);
+
+int acpi_check_mem_region(resource_size_t start, resource_size_t n,
+		      const char *name)
+{
+	struct resource res = {
+		.start = start,
+		.end   = start + n - 1,
+		.name  = name,
+		.flags = IORESOURCE_MEM,
+	};
+
+	return acpi_check_resource_conflict(&res);
+
+}
+EXPORT_SYMBOL(acpi_check_mem_region);
+
 /*
  * Acquire a spinlock.
  *
@@ -1213,24 +1409,24 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
  *
  *	Returns 0 on success
  */
-int acpi_dmi_dump(void)
+static int acpi_dmi_dump(void)
 {
 
 	if (!dmi_available)
 		return -1;
 
 	printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n",
-		dmi_get_slot(DMI_SYS_VENDOR));
+		dmi_get_system_info(DMI_SYS_VENDOR));
 	printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n",
-		dmi_get_slot(DMI_PRODUCT_NAME));
+		dmi_get_system_info(DMI_PRODUCT_NAME));
 	printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n",
-		dmi_get_slot(DMI_PRODUCT_VERSION));
+		dmi_get_system_info(DMI_PRODUCT_VERSION));
 	printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n",
-		dmi_get_slot(DMI_BOARD_NAME));
+		dmi_get_system_info(DMI_BOARD_NAME));
 	printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n",
-		dmi_get_slot(DMI_BIOS_VENDOR));
+		dmi_get_system_info(DMI_BIOS_VENDOR));
 	printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n",
-		dmi_get_slot(DMI_BIOS_DATE));
+		dmi_get_system_info(DMI_BIOS_DATE));
 
 	return 0;
 }
@@ -1303,10 +1499,46 @@ acpi_status
 acpi_os_validate_address (
     u8                   space_id,
     acpi_physical_address   address,
-    acpi_size               length)
+    acpi_size               length,
+    char *name)
 {
+	struct acpi_res_list *res;
+	if (acpi_enforce_resources == ENFORCE_RESOURCES_NO)
+		return AE_OK;
 
-    return AE_OK;
+	switch (space_id) {
+	case ACPI_ADR_SPACE_SYSTEM_IO:
+	case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+		/* Only interference checks against SystemIO and SytemMemory
+		   are needed */
+		res = kzalloc(sizeof(struct acpi_res_list), GFP_KERNEL);
+		if (!res)
+			return AE_OK;
+		/* ACPI names are fixed to 4 bytes, still better use strlcpy */
+		strlcpy(res->name, name, 5);
+		res->start = address;
+		res->end = address + length - 1;
+		res->resource_type = space_id;
+		spin_lock(&acpi_res_lock);
+		list_add(&res->resource_list, &resource_list_head);
+		spin_unlock(&acpi_res_lock);
+		pr_debug("Added %s resource: start: 0x%llx, end: 0x%llx, "
+			 "name: %s\n", (space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+			 ? "SystemIO" : "System Memory",
+			 (unsigned long long)res->start,
+			 (unsigned long long)res->end,
+			 res->name);
+		break;
+	case ACPI_ADR_SPACE_PCI_CONFIG:
+	case ACPI_ADR_SPACE_EC:
+	case ACPI_ADR_SPACE_SMBUS:
+	case ACPI_ADR_SPACE_CMOS:
+	case ACPI_ADR_SPACE_PCI_BAR_TARGET:
+	case ACPI_ADR_SPACE_DATA_TABLE:
+	case ACPI_ADR_SPACE_FIXED_HARDWARE:
+		break;
+	}
+	return AE_OK;
 }
 
 #endif

drivers/acpi/pci_bind.c

@@ -44,6 +44,8 @@ struct acpi_pci_data {
 	struct pci_dev *dev;
 };
 
+static int acpi_pci_unbind(struct acpi_device *device);
+
 static void acpi_pci_data_handler(acpi_handle handle, u32 function,
 				  void *context)
 {
@@ -267,7 +269,7 @@ int acpi_pci_bind(struct acpi_device *device)
 	return result;
 }
 
-int acpi_pci_unbind(struct acpi_device *device)
+static int acpi_pci_unbind(struct acpi_device *device)
 {
 	int result = 0;
 	acpi_status status = AE_OK;

drivers/acpi/pci_irq.c

@@ -51,10 +51,8 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
 							  int bus,
 							  int device, int pin)
 {
-	struct list_head *node = NULL;
 	struct acpi_prt_entry *entry = NULL;
 
-
 	if (!acpi_prt.count)
 		return NULL;
 
@@ -64,8 +62,7 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
 	 *
 	 */
 	spin_lock(&acpi_prt_lock);
-	list_for_each(node, &acpi_prt.entries) {
+	list_for_each_entry(entry, &acpi_prt.entries, node) {
-		entry = list_entry(node, struct acpi_prt_entry, node);
 		if ((segment == entry->id.segment)
 		    && (bus == entry->id.bus)
 		    && (device == entry->id.device)
@@ -478,8 +475,6 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 	return 0;
 }
 
-EXPORT_SYMBOL(acpi_pci_irq_enable);
-
 /* FIXME: implement x86/x86_64 version */
 void __attribute__ ((weak)) acpi_unregister_gsi(u32 i)
 {

drivers/acpi/pci_link.c

@@ -95,7 +95,7 @@ static struct {
 	int count;
 	struct list_head entries;
 } acpi_link;
-DEFINE_MUTEX(acpi_link_lock);
+static DEFINE_MUTEX(acpi_link_lock);
 
 /* --------------------------------------------------------------------------
                             PCI Link Device Management

drivers/acpi/power.c

@@ -458,11 +458,9 @@ int acpi_power_transition(struct acpi_device *device, int state)
 	}
 
      end:
-	if (result) {
+	if (result)
 		device->power.state = ACPI_STATE_UNKNOWN;
-		printk(KERN_WARNING PREFIX "Transitioning device [%s] to D%d\n",
+	else {
-			      device->pnp.bus_id, state);
-	} else {
 	/* We shouldn't change the state till all above operations succeed */
 		device->power.state = state;
 	}

drivers/acpi/processor_core.c

@@ -668,6 +668,24 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
 
 	acpi_processor_power_init(pr, device);
 
+	pr->cdev = thermal_cooling_device_register("Processor", device,
+						&processor_cooling_ops);
+	if (pr->cdev)
+		printk(KERN_INFO PREFIX
+			"%s is registered as cooling_device%d\n",
+			device->dev.bus_id, pr->cdev->id);
+	else
+		goto end;
+
+	result = sysfs_create_link(&device->dev.kobj, &pr->cdev->device.kobj,
+					"thermal_cooling");
+	if (result)
+		return result;
+	result = sysfs_create_link(&pr->cdev->device.kobj, &device->dev.kobj,
+					"device");
+	if (result)
+		return result;
+
 	if (pr->flags.throttling) {
 		printk(KERN_INFO PREFIX "%s [%s] (supports",
 		       acpi_device_name(device), acpi_device_bid(device));
@@ -791,6 +809,11 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
 
 	acpi_processor_remove_fs(device);
 
+	sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+	sysfs_remove_link(&pr->cdev->device.kobj, "device");
+	thermal_cooling_device_unregister(pr->cdev);
+	pr->cdev = NULL;
+
 	processors[pr->id] = NULL;
 
 	kfree(pr);
@@ -812,11 +835,18 @@ static int is_processor_present(acpi_handle handle)
 
 
 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
-	if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT)) {
+	/*
-		ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
+	 * if a processor object does not have an _STA object,
-		return 0;
+	 * OSPM assumes that the processor is present.
-	}
+	 */
-	return 1;
+	if (status == AE_NOT_FOUND)
+		return 1;
+
+	if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
+		return 1;
+
+	ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
+	return 0;
 }
 
 static
@@ -1061,6 +1091,8 @@ static int __init acpi_processor_init(void)
 
 	acpi_processor_ppc_init();
 
+	acpi_processor_throttling_init();
+
 	return 0;
 
 out_cpuidle:

drivers/acpi/processor_idle.c

@@ -98,6 +98,9 @@ module_param(bm_history, uint, 0644);
 
 static int acpi_processor_set_power_policy(struct acpi_processor *pr);
 
+#else	/* CONFIG_CPU_IDLE */
+static unsigned int latency_factor __read_mostly = 2;
+module_param(latency_factor, uint, 0644);
 #endif
 
 /*
@@ -201,6 +204,10 @@ static inline u32 ticks_elapsed_in_us(u32 t1, u32 t2)
 		return PM_TIMER_TICKS_TO_US((0xFFFFFFFF - t1) + t2);
 }
 
+/*
+ * Callers should disable interrupts before the call and enable
+ * interrupts after return.
+ */
 static void acpi_safe_halt(void)
 {
 	current_thread_info()->status &= ~TS_POLLING;
@@ -261,7 +268,7 @@ static atomic_t c3_cpu_count;
 /* Common C-state entry for C2, C3, .. */
 static void acpi_cstate_enter(struct acpi_processor_cx *cstate)
 {
-	if (cstate->space_id == ACPI_CSTATE_FFH) {
+	if (cstate->entry_method == ACPI_CSTATE_FFH) {
 		/* Call into architectural FFH based C-state */
 		acpi_processor_ffh_cstate_enter(cstate);
 	} else {
@@ -413,6 +420,8 @@ static void acpi_processor_idle(void)
 			pm_idle_save();
 		else
 			acpi_safe_halt();
+
+		local_irq_enable();
 		return;
 	}
 
@@ -521,6 +530,7 @@ static void acpi_processor_idle(void)
 		 *       skew otherwise.
 		 */
 		sleep_ticks = 0xFFFFFFFF;
+		local_irq_enable();
 		break;
 
 	case ACPI_STATE_C2:
@@ -922,20 +932,20 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
 		cx.address = reg->address;
 		cx.index = current_count + 1;
 
-		cx.space_id = ACPI_CSTATE_SYSTEMIO;
+		cx.entry_method = ACPI_CSTATE_SYSTEMIO;
 		if (reg->space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) {
 			if (acpi_processor_ffh_cstate_probe
 					(pr->id, &cx, reg) == 0) {
-				cx.space_id = ACPI_CSTATE_FFH;
+				cx.entry_method = ACPI_CSTATE_FFH;
-			} else if (cx.type != ACPI_STATE_C1) {
+			} else if (cx.type == ACPI_STATE_C1) {
 				/*
 				 * C1 is a special case where FIXED_HARDWARE
 				 * can be handled in non-MWAIT way as well.
 				 * In that case, save this _CST entry info.
-				 * That is, we retain space_id of SYSTEM_IO for
-				 * halt based C1.
 				 * Otherwise, ignore this info and continue.
 				 */
+				cx.entry_method = ACPI_CSTATE_HALT;
+			} else {
 				continue;
 			}
 		}
@@ -1369,12 +1379,16 @@ static inline void acpi_idle_update_bm_rld(struct acpi_processor *pr,
 /**
  * acpi_idle_do_entry - a helper function that does C2 and C3 type entry
  * @cx: cstate data
+ *
+ * Caller disables interrupt before call and enables interrupt after return.
  */
 static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx)
 {
-	if (cx->space_id == ACPI_CSTATE_FFH) {
+	if (cx->entry_method == ACPI_CSTATE_FFH) {
 		/* Call into architectural FFH based C-state */
 		acpi_processor_ffh_cstate_enter(cx);
+	} else if (cx->entry_method == ACPI_CSTATE_HALT) {
+		acpi_safe_halt();
 	} else {
 		int unused;
 		/* IO port based C-state */
@@ -1396,21 +1410,27 @@ static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx)
 static int acpi_idle_enter_c1(struct cpuidle_device *dev,
 			      struct cpuidle_state *state)
 {
+	u32 t1, t2;
 	struct acpi_processor *pr;
 	struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
+
 	pr = processors[smp_processor_id()];
 
 	if (unlikely(!pr))
 		return 0;
 
+	local_irq_disable();
 	if (pr->flags.bm_check)
 		acpi_idle_update_bm_rld(pr, cx);
 
-	acpi_safe_halt();
+	t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
+	acpi_idle_do_entry(cx);
+	t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
 
+	local_irq_enable();
 	cx->usage++;
 
-	return 0;
+	return ticks_elapsed_in_us(t1, t2);
 }
 
 /**
@@ -1517,7 +1537,9 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 		if (dev->safe_state) {
 			return dev->safe_state->enter(dev, dev->safe_state);
 		} else {
+			local_irq_disable();
 			acpi_safe_halt();
+			local_irq_enable();
 			return 0;
 		}
 	}
@@ -1609,7 +1631,7 @@ struct cpuidle_driver acpi_idle_driver = {
  */
 static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 {
-	int i, count = 0;
+	int i, count = CPUIDLE_DRIVER_STATE_START;
 	struct acpi_processor_cx *cx;
 	struct cpuidle_state *state;
 	struct cpuidle_device *dev = &pr->power.dev;
@@ -1638,13 +1660,14 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 
 		snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i);
 		state->exit_latency = cx->latency;
-		state->target_residency = cx->latency * 6;
+		state->target_residency = cx->latency * latency_factor;
 		state->power_usage = cx->power;
 
 		state->flags = 0;
 		switch (cx->type) {
 			case ACPI_STATE_C1:
 			state->flags |= CPUIDLE_FLAG_SHALLOW;
+			state->flags |= CPUIDLE_FLAG_TIME_VALID;
 			state->enter = acpi_idle_enter_c1;
 			dev->safe_state = state;
 			break;
@@ -1667,6 +1690,8 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 		}
 
 		count++;
+		if (count == CPUIDLE_STATE_MAX)
+			break;
 	}
 
 	dev->state_count = count;

drivers/acpi/processor_perflib.c

@@ -60,6 +60,11 @@ static DEFINE_MUTEX(performance_mutex);
  * policy is adjusted accordingly.
  */
 
+static unsigned int ignore_ppc = 0;
+module_param(ignore_ppc, uint, 0644);
+MODULE_PARM_DESC(ignore_ppc, "If the frequency of your machine gets wrongly" \
+		 "limited by BIOS, this should help");
+
 #define PPC_REGISTERED   1
 #define PPC_IN_USE       2
 
@@ -72,6 +77,9 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
 	struct acpi_processor *pr;
 	unsigned int ppc = 0;
 
+	if (ignore_ppc)
+		return 0;
+
 	mutex_lock(&performance_mutex);
 
 	if (event != CPUFREQ_INCOMPATIBLE)
@@ -130,7 +138,13 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
 
 int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
 {
-	int ret = acpi_processor_get_platform_limit(pr);
+	int ret;
+
+	if (ignore_ppc)
+		return 0;
+
+	ret = acpi_processor_get_platform_limit(pr);
+
 	if (ret < 0)
 		return (ret);
 	else

drivers/acpi/processor_thermal.c

@@ -32,6 +32,7 @@
 #include <linux/cpufreq.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/sysdev.h>
 
 #include <asm/uaccess.h>
 
@@ -93,6 +94,9 @@ static int acpi_processor_apply_limit(struct acpi_processor *pr)
  * _any_ cpufreq driver and not only the acpi-cpufreq driver.
  */
 
+#define CPUFREQ_THERMAL_MIN_STEP 0
+#define CPUFREQ_THERMAL_MAX_STEP 3
+
 static unsigned int cpufreq_thermal_reduction_pctg[NR_CPUS];
 static unsigned int acpi_thermal_cpufreq_is_init = 0;
 
@@ -109,8 +113,9 @@ static int acpi_thermal_cpufreq_increase(unsigned int cpu)
 	if (!cpu_has_cpufreq(cpu))
 		return -ENODEV;
 
-	if (cpufreq_thermal_reduction_pctg[cpu] < 60) {
+	if (cpufreq_thermal_reduction_pctg[cpu] <
-		cpufreq_thermal_reduction_pctg[cpu] += 20;
+		CPUFREQ_THERMAL_MAX_STEP) {
+		cpufreq_thermal_reduction_pctg[cpu]++;
 		cpufreq_update_policy(cpu);
 		return 0;
 	}
@@ -123,8 +128,9 @@ static int acpi_thermal_cpufreq_decrease(unsigned int cpu)
 	if (!cpu_has_cpufreq(cpu))
 		return -ENODEV;
 
-	if (cpufreq_thermal_reduction_pctg[cpu] > 20)
+	if (cpufreq_thermal_reduction_pctg[cpu] >
-		cpufreq_thermal_reduction_pctg[cpu] -= 20;
+		(CPUFREQ_THERMAL_MIN_STEP + 1))
+		cpufreq_thermal_reduction_pctg[cpu]--;
 	else
 		cpufreq_thermal_reduction_pctg[cpu] = 0;
 	cpufreq_update_policy(cpu);
@@ -143,7 +149,7 @@ static int acpi_thermal_cpufreq_notifier(struct notifier_block *nb,
 
 	max_freq =
 	    (policy->cpuinfo.max_freq *
-	     (100 - cpufreq_thermal_reduction_pctg[policy->cpu])) / 100;
+	     (100 - cpufreq_thermal_reduction_pctg[policy->cpu] * 20)) / 100;
 
 	cpufreq_verify_within_limits(policy, 0, max_freq);
 
@@ -155,6 +161,32 @@ static struct notifier_block acpi_thermal_cpufreq_notifier_block = {
 	.notifier_call = acpi_thermal_cpufreq_notifier,
 };
 
+static int cpufreq_get_max_state(unsigned int cpu)
+{
+	if (!cpu_has_cpufreq(cpu))
+		return 0;
+
+	return CPUFREQ_THERMAL_MAX_STEP;
+}
+
+static int cpufreq_get_cur_state(unsigned int cpu)
+{
+	if (!cpu_has_cpufreq(cpu))
+		return 0;
+
+	return cpufreq_thermal_reduction_pctg[cpu];
+}
+
+static int cpufreq_set_cur_state(unsigned int cpu, int state)
+{
+	if (!cpu_has_cpufreq(cpu))
+		return 0;
+
+	cpufreq_thermal_reduction_pctg[cpu] = state;
+	cpufreq_update_policy(cpu);
+	return 0;
+}
+
 void acpi_thermal_cpufreq_init(void)
 {
 	int i;
@@ -179,6 +211,20 @@ void acpi_thermal_cpufreq_exit(void)
 }
 
 #else				/* ! CONFIG_CPU_FREQ */
+static int cpufreq_get_max_state(unsigned int cpu)
+{
+	return 0;
+}
+
+static int cpufreq_get_cur_state(unsigned int cpu)
+{
+	return 0;
+}
+
+static int cpufreq_set_cur_state(unsigned int cpu, int state)
+{
+	return 0;
+}
 
 static int acpi_thermal_cpufreq_increase(unsigned int cpu)
 {
@@ -310,6 +356,84 @@ int acpi_processor_get_limit_info(struct acpi_processor *pr)
 	return 0;
 }
 
+/* thermal coolign device callbacks */
+static int acpi_processor_max_state(struct acpi_processor *pr)
+{
+	int max_state = 0;
+
+	/*
+	 * There exists four states according to
+	 * cpufreq_thermal_reduction_ptg. 0, 1, 2, 3
+	 */
+	max_state += cpufreq_get_max_state(pr->id);
+	if (pr->flags.throttling)
+		max_state += (pr->throttling.state_count -1);
+
+	return max_state;
+}
+static int
+processor_get_max_state(struct thermal_cooling_device *cdev, char *buf)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_processor *pr = acpi_driver_data(device);
+
+	if (!device || !pr)
+		return -EINVAL;
+
+	return sprintf(buf, "%d\n", acpi_processor_max_state(pr));
+}
+
+static int
+processor_get_cur_state(struct thermal_cooling_device *cdev, char *buf)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_processor *pr = acpi_driver_data(device);
+	int cur_state;
+
+	if (!device || !pr)
+		return -EINVAL;
+
+	cur_state = cpufreq_get_cur_state(pr->id);
+	if (pr->flags.throttling)
+		cur_state += pr->throttling.state;
+
+	return sprintf(buf, "%d\n", cur_state);
+}
+
+static int
+processor_set_cur_state(struct thermal_cooling_device *cdev, unsigned int state)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_processor *pr = acpi_driver_data(device);
+	int result = 0;
+	int max_pstate;
+
+	if (!device || !pr)
+		return -EINVAL;
+
+	max_pstate = cpufreq_get_max_state(pr->id);
+
+	if (state > acpi_processor_max_state(pr))
+		return -EINVAL;
+
+	if (state <= max_pstate) {
+		if (pr->flags.throttling && pr->throttling.state)
+			result = acpi_processor_set_throttling(pr, 0);
+		cpufreq_set_cur_state(pr->id, state);
+	} else {
+		cpufreq_set_cur_state(pr->id, max_pstate);
+		result = acpi_processor_set_throttling(pr,
+				state - max_pstate);
+	}
+	return result;
+}
+
+struct thermal_cooling_device_ops processor_cooling_ops = {
+	.get_max_state = processor_get_max_state,
+	.get_cur_state = processor_get_cur_state,
+	.set_cur_state = processor_set_cur_state,
+};
+
 /* /proc interface */
 
 static int acpi_processor_limit_seq_show(struct seq_file *seq, void *offset)

drivers/acpi/processor_throttling.c

@@ -45,9 +45,229 @@
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_throttling");
 
+struct throttling_tstate {
+	unsigned int cpu;		/* cpu nr */
+	int target_state;		/* target T-state */
+};
+
+#define THROTTLING_PRECHANGE       (1)
+#define THROTTLING_POSTCHANGE      (2)
+
 static int acpi_processor_get_throttling(struct acpi_processor *pr);
 int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
 
+static int acpi_processor_update_tsd_coord(void)
+{
+	int count, count_target;
+	int retval = 0;
+	unsigned int i, j;
+	cpumask_t covered_cpus;
+	struct acpi_processor *pr, *match_pr;
+	struct acpi_tsd_package *pdomain, *match_pdomain;
+	struct acpi_processor_throttling *pthrottling, *match_pthrottling;
+
+	/*
+	 * Now that we have _TSD data from all CPUs, lets setup T-state
+	 * coordination between all CPUs.
+	 */
+	for_each_possible_cpu(i) {
+		pr = processors[i];
+		if (!pr)
+			continue;
+
+		/* Basic validity check for domain info */
+		pthrottling = &(pr->throttling);
+
+		/*
+		 * If tsd package for one cpu is invalid, the coordination
+		 * among all CPUs is thought as invalid.
+		 * Maybe it is ugly.
+		 */
+		if (!pthrottling->tsd_valid_flag) {
+			retval = -EINVAL;
+			break;
+		}
+	}
+	if (retval)
+		goto err_ret;
+
+	cpus_clear(covered_cpus);
+	for_each_possible_cpu(i) {
+		pr = processors[i];
+		if (!pr)
+			continue;
+
+		if (cpu_isset(i, covered_cpus))
+			continue;
+		pthrottling = &pr->throttling;
+
+		pdomain = &(pthrottling->domain_info);
+		cpu_set(i, pthrottling->shared_cpu_map);
+		cpu_set(i, covered_cpus);
+		/*
+		 * If the number of processor in the TSD domain is 1, it is
+		 * unnecessary to parse the coordination for this CPU.
+		 */
+		if (pdomain->num_processors <= 1)
+			continue;
+
+		/* Validate the Domain info */
+		count_target = pdomain->num_processors;
+		count = 1;
+
+		for_each_possible_cpu(j) {
+			if (i == j)
+				continue;
+
+			match_pr = processors[j];
+			if (!match_pr)
+				continue;
+
+			match_pthrottling = &(match_pr->throttling);
+			match_pdomain = &(match_pthrottling->domain_info);
+			if (match_pdomain->domain != pdomain->domain)
+				continue;
+
+			/* Here i and j are in the same domain.
+			 * If two TSD packages have the same domain, they
+			 * should have the same num_porcessors and
+			 * coordination type. Otherwise it will be regarded
+			 * as illegal.
+			 */
+			if (match_pdomain->num_processors != count_target) {
+				retval = -EINVAL;
+				goto err_ret;
+			}
+
+			if (pdomain->coord_type != match_pdomain->coord_type) {
+				retval = -EINVAL;
+				goto err_ret;
+			}
+
+			cpu_set(j, covered_cpus);
+			cpu_set(j, pthrottling->shared_cpu_map);
+			count++;
+		}
+		for_each_possible_cpu(j) {
+			if (i == j)
+				continue;
+
+			match_pr = processors[j];
+			if (!match_pr)
+				continue;
+
+			match_pthrottling = &(match_pr->throttling);
+			match_pdomain = &(match_pthrottling->domain_info);
+			if (match_pdomain->domain != pdomain->domain)
+				continue;
+
+			/*
+			 * If some CPUS have the same domain, they
+			 * will have the same shared_cpu_map.
+			 */
+			match_pthrottling->shared_cpu_map =
+				pthrottling->shared_cpu_map;
+		}
+	}
+
+err_ret:
+	for_each_possible_cpu(i) {
+		pr = processors[i];
+		if (!pr)
+			continue;
+
+		/*
+		 * Assume no coordination on any error parsing domain info.
+		 * The coordination type will be forced as SW_ALL.
+		 */
+		if (retval) {
+			pthrottling = &(pr->throttling);
+			cpus_clear(pthrottling->shared_cpu_map);
+			cpu_set(i, pthrottling->shared_cpu_map);
+			pthrottling->shared_type = DOMAIN_COORD_TYPE_SW_ALL;
+		}
+	}
+
+	return retval;
+}
+
+/*
+ * Update the T-state coordination after the _TSD
+ * data for all cpus is obtained.
+ */
+void acpi_processor_throttling_init(void)
+{
+	if (acpi_processor_update_tsd_coord())
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+			"Assume no T-state coordination\n"));
+
+	return;
+}
+
+static int acpi_processor_throttling_notifier(unsigned long event, void *data)
+{
+	struct throttling_tstate *p_tstate = data;
+	struct acpi_processor *pr;
+	unsigned int cpu ;
+	int target_state;
+	struct acpi_processor_limit *p_limit;
+	struct acpi_processor_throttling *p_throttling;
+
+	cpu = p_tstate->cpu;
+	pr = processors[cpu];
+	if (!pr) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid pr pointer\n"));
+		return 0;
+	}
+	if (!pr->flags.throttling) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Throttling control is "
+				"unsupported on CPU %d\n", cpu));
+		return 0;
+	}
+	target_state = p_tstate->target_state;
+	p_throttling = &(pr->throttling);
+	switch (event) {
+	case THROTTLING_PRECHANGE:
+		/*
+		 * Prechange event is used to choose one proper t-state,
+		 * which meets the limits of thermal, user and _TPC.
+		 */
+		p_limit = &pr->limit;
+		if (p_limit->thermal.tx > target_state)
+			target_state = p_limit->thermal.tx;
+		if (p_limit->user.tx > target_state)
+			target_state = p_limit->user.tx;
+		if (pr->throttling_platform_limit > target_state)
+			target_state = pr->throttling_platform_limit;
+		if (target_state >= p_throttling->state_count) {
+			printk(KERN_WARNING
+				"Exceed the limit of T-state \n");
+			target_state = p_throttling->state_count - 1;
+		}
+		p_tstate->target_state = target_state;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "PreChange Event:"
+				"target T-state of CPU %d is T%d\n",
+				cpu, target_state));
+		break;
+	case THROTTLING_POSTCHANGE:
+		/*
+		 * Postchange event is only used to update the
+		 * T-state flag of acpi_processor_throttling.
+		 */
+		p_throttling->state = target_state;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "PostChange Event:"
+				"CPU %d is switched to T%d\n",
+				cpu, target_state));
+		break;
+	default:
+		printk(KERN_WARNING
+			"Unsupported Throttling notifier event\n");
+		break;
+	}
+
+	return 0;
+}
+
 /*
  * _TPC - Throttling Present Capabilities
  */
@@ -293,6 +513,10 @@ static int acpi_processor_get_tsd(struct acpi_processor *pr)
 	struct acpi_buffer state = { 0, NULL };
 	union acpi_object *tsd = NULL;
 	struct acpi_tsd_package *pdomain;
+	struct acpi_processor_throttling *pthrottling;
+
+	pthrottling = &pr->throttling;
+	pthrottling->tsd_valid_flag = 0;
 
 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
@@ -340,6 +564,22 @@ static int acpi_processor_get_tsd(struct acpi_processor *pr)
 		goto end;
 	}
 
+	pthrottling = &pr->throttling;
+	pthrottling->tsd_valid_flag = 1;
+	pthrottling->shared_type = pdomain->coord_type;
+	cpu_set(pr->id, pthrottling->shared_cpu_map);
+	/*
+	 * If the coordination type is not defined in ACPI spec,
+	 * the tsd_valid_flag will be clear and coordination type
+	 * will be forecd as DOMAIN_COORD_TYPE_SW_ALL.
+	 */
+	if (pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ALL &&
+		pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ANY &&
+		pdomain->coord_type != DOMAIN_COORD_TYPE_HW_ALL) {
+		pthrottling->tsd_valid_flag = 0;
+		pthrottling->shared_type = DOMAIN_COORD_TYPE_SW_ALL;
+	}
+
       end:
 	kfree(buffer.pointer);
 	return result;
@@ -589,6 +829,11 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr)
 	cpumask_t saved_mask;
 	int ret;
 
+	if (!pr)
+		return -EINVAL;
+
+	if (!pr->flags.throttling)
+		return -ENODEV;
 	/*
 	 * Migrate task to the cpu pointed by pr.
 	 */
@@ -742,13 +987,92 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
 int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
 {
 	cpumask_t saved_mask;
-	int ret;
+	int ret = 0;
-	/*
+	unsigned int i;
-	 * Migrate task to the cpu pointed by pr.
+	struct acpi_processor *match_pr;
-	 */
+	struct acpi_processor_throttling *p_throttling;
+	struct throttling_tstate t_state;
+	cpumask_t online_throttling_cpus;
+
+	if (!pr)
+		return -EINVAL;
+
+	if (!pr->flags.throttling)
+		return -ENODEV;
+
+	if ((state < 0) || (state > (pr->throttling.state_count - 1)))
+		return -EINVAL;
+
 	saved_mask = current->cpus_allowed;
-	set_cpus_allowed(current, cpumask_of_cpu(pr->id));
+	t_state.target_state = state;
-	ret = pr->throttling.acpi_processor_set_throttling(pr, state);
+	p_throttling = &(pr->throttling);
+	cpus_and(online_throttling_cpus, cpu_online_map,
+			p_throttling->shared_cpu_map);
+	/*
+	 * The throttling notifier will be called for every
+	 * affected cpu in order to get one proper T-state.
+	 * The notifier event is THROTTLING_PRECHANGE.
+	 */
+	for_each_cpu_mask(i, online_throttling_cpus) {
+		t_state.cpu = i;
+		acpi_processor_throttling_notifier(THROTTLING_PRECHANGE,
+							&t_state);
+	}
+	/*
+	 * The function of acpi_processor_set_throttling will be called
+	 * to switch T-state. If the coordination type is SW_ALL or HW_ALL,
+	 * it is necessary to call it for every affected cpu. Otherwise
+	 * it can be called only for the cpu pointed by pr.
+	 */
+	if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) {
+		set_cpus_allowed(current, cpumask_of_cpu(pr->id));
+		ret = p_throttling->acpi_processor_set_throttling(pr,
+						t_state.target_state);
+	} else {
+		/*
+		 * When the T-state coordination is SW_ALL or HW_ALL,
+		 * it is necessary to set T-state for every affected
+		 * cpus.
+		 */
+		for_each_cpu_mask(i, online_throttling_cpus) {
+			match_pr = processors[i];
+			/*
+			 * If the pointer is invalid, we will report the
+			 * error message and continue.
+			 */
+			if (!match_pr) {
+				ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+					"Invalid Pointer for CPU %d\n", i));
+				continue;
+			}
+			/*
+			 * If the throttling control is unsupported on CPU i,
+			 * we will report the error message and continue.
+			 */
+			if (!match_pr->flags.throttling) {
+				ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+					"Throttling Controll is unsupported "
+					"on CPU %d\n", i));
+				continue;
+			}
+			t_state.cpu = i;
+			set_cpus_allowed(current, cpumask_of_cpu(i));
+			ret = match_pr->throttling.
+				acpi_processor_set_throttling(
+				match_pr, t_state.target_state);
+		}
+	}
+	/*
+	 * After the set_throttling is called, the
+	 * throttling notifier is called for every
+	 * affected cpu to update the T-states.
+	 * The notifier event is THROTTLING_POSTCHANGE
+	 */
+	for_each_cpu_mask(i, online_throttling_cpus) {
+		t_state.cpu = i;
+		acpi_processor_throttling_notifier(THROTTLING_POSTCHANGE,
+							&t_state);
+	}
 	/* restore the previous state */
 	set_cpus_allowed(current, saved_mask);
 	return ret;
@@ -757,6 +1081,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
 int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 {
 	int result = 0;
+	struct acpi_processor_throttling *pthrottling;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
@@ -788,7 +1113,16 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 		    &acpi_processor_set_throttling_ptc;
 	}
 
-	acpi_processor_get_tsd(pr);
+	/*
+	 * If TSD package for one CPU can't be parsed successfully, it means
+	 * that this CPU will have no coordination with other CPUs.
+	 */
+	if (acpi_processor_get_tsd(pr)) {
+		pthrottling = &pr->throttling;
+		pthrottling->tsd_valid_flag = 0;
+		cpu_set(pr->id, pthrottling->shared_cpu_map);
+		pthrottling->shared_type = DOMAIN_COORD_TYPE_SW_ALL;
+	}
 
 	/*
 	 * PIIX4 Errata: We don't support throttling on the original PIIX4.

drivers/acpi/sbs.c

@@ -888,7 +888,7 @@ static void acpi_charger_remove(struct acpi_sbs *sbs)
 #endif
 }
 
-void acpi_sbs_callback(void *context)
+static void acpi_sbs_callback(void *context)
 {
 	int id;
 	struct acpi_sbs *sbs = context;

drivers/acpi/sbshc.c

@@ -111,8 +111,8 @@ static int wait_transaction_complete(struct acpi_smb_hc *hc, int timeout)
 		return -ETIME;
 }
 
-int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+static int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol,
-		    u8 command, u8 *data, u8 length)
+				  u8 address, u8 command, u8 *data, u8 length)
 {
 	int ret = -EFAULT, i;
 	u8 temp, sz = 0;

drivers/acpi/scan.c

@@ -59,7 +59,7 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias,
 			count = snprintf(&modalias[len], size, "%s:",
 					 cid_list->id[i].value);
 			if (count < 0 || count >= size) {
-				printk(KERN_ERR "acpi: %s cid[%i] exceeds event buffer size",
+				printk(KERN_ERR PREFIX "%s cid[%i] exceeds event buffer size",
 				       acpi_dev->pnp.device_name, i);
 				break;
 			}
@@ -453,7 +453,7 @@ static int acpi_device_register(struct acpi_device *device,
 	device->dev.release = &acpi_device_release;
 	result = device_add(&device->dev);
 	if(result) {
-		printk("Error adding device %s", device->dev.bus_id);
+		printk(KERN_ERR PREFIX "Error adding device %s", device->dev.bus_id);
 		goto end;
 	}
 
@@ -941,6 +941,15 @@ static int acpi_bay_match(struct acpi_device *device){
 	return -ENODEV;
 }
 
+/*
+ * acpi_dock_match - see if a device has a _DCK method
+ */
+static int acpi_dock_match(struct acpi_device *device)
+{
+	acpi_handle tmp;
+	return acpi_get_handle(device->handle, "_DCK", &tmp);
+}
+
 static void acpi_device_set_id(struct acpi_device *device,
 			       struct acpi_device *parent, acpi_handle handle,
 			       int type)
@@ -950,13 +959,14 @@ static void acpi_device_set_id(struct acpi_device *device,
 	char *hid = NULL;
 	char *uid = NULL;
 	struct acpi_compatible_id_list *cid_list = NULL;
+	const char *cid_add = NULL;
 	acpi_status status;
 
 	switch (type) {
 	case ACPI_BUS_TYPE_DEVICE:
 		status = acpi_get_object_info(handle, &buffer);
 		if (ACPI_FAILURE(status)) {
-			printk("%s: Error reading device info\n", __FUNCTION__);
+			printk(KERN_ERR PREFIX "%s: Error reading device info\n", __FUNCTION__);
 			return;
 		}
 
@@ -972,15 +982,18 @@ static void acpi_device_set_id(struct acpi_device *device,
 			device->flags.bus_address = 1;
 		}
 
-		if(!(info->valid & (ACPI_VALID_HID | ACPI_VALID_CID))){
+		/* If we have a video/bay/dock device, add our selfdefined
-			status = acpi_video_bus_match(device);
+		   HID to the CID list. Like that the video/bay/dock drivers
-			if(ACPI_SUCCESS(status))
+		   will get autoloaded and the device might still match
-				hid = ACPI_VIDEO_HID;
+		   against another driver.
+		*/
+		if (ACPI_SUCCESS(acpi_video_bus_match(device)))
+			cid_add = ACPI_VIDEO_HID;
+		else if (ACPI_SUCCESS(acpi_bay_match(device)))
+			cid_add = ACPI_BAY_HID;
+		else if (ACPI_SUCCESS(acpi_dock_match(device)))
+			cid_add = ACPI_DOCK_HID;
 
-			status = acpi_bay_match(device);
-			if (ACPI_SUCCESS(status))
-				hid = ACPI_BAY_HID;
-		}
 		break;
 	case ACPI_BUS_TYPE_POWER:
 		hid = ACPI_POWER_HID;
@@ -1021,12 +1034,45 @@ static void acpi_device_set_id(struct acpi_device *device,
 		strcpy(device->pnp.unique_id, uid);
 		device->flags.unique_id = 1;
 	}
-	if (cid_list) {
+	if (cid_list || cid_add) {
-		device->pnp.cid_list = kmalloc(cid_list->size, GFP_KERNEL);
+		struct  acpi_compatible_id_list *list;
-		if (device->pnp.cid_list)
+		int size = 0;
-			memcpy(device->pnp.cid_list, cid_list, cid_list->size);
+		int count = 0;
-		else
+
-			printk(KERN_ERR "Memory allocation error\n");
+		if (cid_list) {
+			size = cid_list->size;
+		} else if (cid_add) {
+			size = sizeof(struct acpi_compatible_id_list);
+			cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
+			if (!cid_list) {
+				printk(KERN_ERR "Memory allocation error\n");
+				kfree(buffer.pointer);
+				return;
+			} else {
+				cid_list->count = 0;
+				cid_list->size = size;
+			}
+		}
+		if (cid_add)
+			size += sizeof(struct acpi_compatible_id);
+		list = kmalloc(size, GFP_KERNEL);
+
+		if (list) {
+			if (cid_list) {
+				memcpy(list, cid_list, cid_list->size);
+				count = cid_list->count;
+			}
+			if (cid_add) {
+				strncpy(list->id[count].value, cid_add,
+					ACPI_MAX_CID_LENGTH);
+				count++;
+				device->flags.compatible_ids = 1;
+			}
+			list->size = size;
+			list->count = count;
+			device->pnp.cid_list = list;
+		} else
+			printk(KERN_ERR PREFIX "Memory allocation error\n");
 	}
 
 	kfree(buffer.pointer);
@@ -1050,7 +1096,7 @@ static int acpi_device_set_context(struct acpi_device *device, int type)
 					  acpi_bus_data_handler, device);
 
 		if (ACPI_FAILURE(status)) {
-			printk("Error attaching device data\n");
+			printk(KERN_ERR PREFIX "Error attaching device data\n");
 			result = -ENODEV;
 		}
 	}
@@ -1080,6 +1126,20 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
 	return 0;
 }
 
+static int
+acpi_is_child_device(struct acpi_device *device,
+			int (*matcher)(struct acpi_device *))
+{
+	int result = -ENODEV;
+
+	do {
+		if (ACPI_SUCCESS(matcher(device)))
+			return AE_OK;
+	} while ((device = device->parent));
+
+	return result;
+}
+
 static int
 acpi_add_single_object(struct acpi_device **child,
 		       struct acpi_device *parent, acpi_handle handle, int type,
@@ -1131,10 +1191,20 @@ acpi_add_single_object(struct acpi_device **child,
 	case ACPI_BUS_TYPE_PROCESSOR:
 	case ACPI_BUS_TYPE_DEVICE:
 		result = acpi_bus_get_status(device);
-		if (ACPI_FAILURE(result) || !device->status.present) {
+		if (ACPI_FAILURE(result)) {
-			result = -ENOENT;
+			result = -ENODEV;
 			goto end;
 		}
+		if (!device->status.present) {
+			/* Bay and dock should be handled even if absent */
+			if (!ACPI_SUCCESS(
+			     acpi_is_child_device(device, acpi_bay_match)) &&
+			    !ACPI_SUCCESS(
+			     acpi_is_child_device(device, acpi_dock_match))) {
+					result = -ENODEV;
+					goto end;
+			}
+		}
 		break;
 	default:
 		STRUCT_TO_INT(device->status) =

drivers/acpi/sleep/main.c

@@ -170,7 +170,7 @@ static int acpi_pm_enter(suspend_state_t pm_state)
 	/* Reprogram control registers and execute _BFS */
 	acpi_leave_sleep_state_prep(acpi_state);
 
-	/* ACPI 3.0 specs (P62) says that it's the responsabilty
+	/* ACPI 3.0 specs (P62) says that it's the responsibility
 	 * of the OSPM to clear the status bit [ implying that the
 	 * POWER_BUTTON event should not reach userspace ]
 	 */
@@ -472,11 +472,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
 	if (acpi_target_sleep_state == ACPI_STATE_S0 ||
 	    (wake && adev->wakeup.state.enabled &&
 	     adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
+		acpi_status status;
+
 		acpi_method[3] = 'W';
-		acpi_evaluate_integer(handle, acpi_method, NULL, &d_max);
+		status = acpi_evaluate_integer(handle, acpi_method, NULL,
-		/* Sanity check */
+						&d_max);
-		if (d_max < d_min)
+		if (ACPI_FAILURE(status)) {
+			d_max = d_min;
+		} else if (d_max < d_min) {
+			/* Warn the user of the broken DSDT */
+			printk(KERN_WARNING "ACPI: Wrong value from %s\n",
+				acpi_method);
+			/* Sanitize it */
 			d_min = d_max;
+		}
 	}
 
 	if (d_min_p)

drivers/acpi/sleep/proc.c

@@ -178,6 +178,9 @@ static int get_date_field(char **p, u32 * value)
 	 * Try to find delimeter, only to insert null.  The end of the
 	 * string won't have one, but is still valid.
 	 */
+	if (*p == NULL)
+		return result;
+
 	next = strpbrk(*p, "- :");
 	if (next)
 		*next++ = '\0';
@@ -190,6 +193,8 @@ static int get_date_field(char **p, u32 * value)
 
 	if (next)
 		*p = next;
+	else
+		*p = NULL;
 
 	return result;
 }
@@ -251,27 +256,6 @@ acpi_system_write_alarm(struct file *file,
 	if ((result = get_date_field(&p, &sec)))
 		goto end;
 
-	if (sec > 59) {
-		min += 1;
-		sec -= 60;
-	}
-	if (min > 59) {
-		hr += 1;
-		min -= 60;
-	}
-	if (hr > 23) {
-		day += 1;
-		hr -= 24;
-	}
-	if (day > 31) {
-		mo += 1;
-		day -= 31;
-	}
-	if (mo > 12) {
-		yr += 1;
-		mo -= 12;
-	}
-
 	spin_lock_irq(&rtc_lock);
 
 	rtc_control = CMOS_READ(RTC_CONTROL);
@@ -288,24 +272,24 @@ acpi_system_write_alarm(struct file *file,
 	spin_unlock_irq(&rtc_lock);
 
 	if (sec > 59) {
-		min++;
+		min += sec/60;
-		sec -= 60;
+		sec = sec%60;
 	}
 	if (min > 59) {
-		hr++;
+		hr += min/60;
-		min -= 60;
+		min = min%60;
 	}
 	if (hr > 23) {
-		day++;
+		day += hr/24;
-		hr -= 24;
+		hr = hr%24;
 	}
 	if (day > 31) {
-		mo++;
+		mo += day/32;
-		day -= 31;
+		day = day%32;
 	}
 	if (mo > 12) {
-		yr++;
+		yr += mo/13;
-		mo -= 12;
+		mo = mo%13;
 	}
 
 	spin_lock_irq(&rtc_lock);

drivers/acpi/system.c

@@ -40,6 +40,8 @@ ACPI_MODULE_NAME("system");
 #define ACPI_SYSTEM_CLASS		"system"
 #define ACPI_SYSTEM_DEVICE_NAME		"System"
 
+u32 acpi_irq_handled;
+
 /*
  * Make ACPICA version work as module param
  */
@@ -166,6 +168,212 @@ static int acpi_system_sysfs_init(void)
 	return 0;
 }
 
+/*
+ * Detailed ACPI IRQ counters in /sys/firmware/acpi/interrupts/
+ * See Documentation/ABI/testing/sysfs-firmware-acpi
+ */
+
+#define COUNT_GPE 0
+#define COUNT_SCI 1	/* acpi_irq_handled */
+#define COUNT_ERROR 2	/* other */
+#define NUM_COUNTERS_EXTRA 3
+
+static u32 *all_counters;
+static u32 num_gpes;
+static u32 num_counters;
+static struct attribute **all_attrs;
+static u32 acpi_gpe_count;
+
+static struct attribute_group interrupt_stats_attr_group = {
+	.name = "interrupts",
+};
+static struct kobj_attribute *counter_attrs;
+
+static int count_num_gpes(void)
+{
+	int count = 0;
+	struct acpi_gpe_xrupt_info *gpe_xrupt_info;
+	struct acpi_gpe_block_info *gpe_block;
+	acpi_cpu_flags flags;
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+	gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
+	while (gpe_xrupt_info) {
+		gpe_block = gpe_xrupt_info->gpe_block_list_head;
+		while (gpe_block) {
+			count += gpe_block->register_count *
+			    ACPI_GPE_REGISTER_WIDTH;
+			gpe_block = gpe_block->next;
+		}
+		gpe_xrupt_info = gpe_xrupt_info->next;
+	}
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+	return count;
+}
+
+static void delete_gpe_attr_array(void)
+{
+	u32 *tmp = all_counters;
+
+	all_counters = NULL;
+	kfree(tmp);
+
+	if (counter_attrs) {
+		int i;
+
+		for (i = 0; i < num_gpes; i++)
+			kfree(counter_attrs[i].attr.name);
+
+		kfree(counter_attrs);
+	}
+	kfree(all_attrs);
+
+	return;
+}
+
+void acpi_os_gpe_count(u32 gpe_number)
+{
+	acpi_gpe_count++;
+
+	if (!all_counters)
+		return;
+
+	if (gpe_number < num_gpes)
+		all_counters[gpe_number]++;
+	else
+		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR]++;
+
+	return;
+}
+
+void acpi_os_fixed_event_count(u32 event_number)
+{
+	if (!all_counters)
+		return;
+
+	if (event_number < ACPI_NUM_FIXED_EVENTS)
+		all_counters[num_gpes + event_number]++;
+	else
+		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR]++;
+
+	return;
+}
+
+static ssize_t counter_show(struct kobject *kobj,
+	struct kobj_attribute *attr, char *buf)
+{
+	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI] =
+		acpi_irq_handled;
+	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE] =
+		acpi_gpe_count;
+
+	return sprintf(buf, "%d\n", all_counters[attr - counter_attrs]);
+}
+
+/*
+ * counter_set() sets the specified counter.
+ * setting the total "sci" file to any value clears all counters.
+ */
+static ssize_t counter_set(struct kobject *kobj,
+	struct kobj_attribute *attr, const char *buf, size_t size)
+{
+	int index = attr - counter_attrs;
+
+	if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
+		int i;
+		for (i = 0; i < num_counters; ++i)
+			all_counters[i] = 0;
+		acpi_gpe_count = 0;
+		acpi_irq_handled = 0;
+
+	} else
+		all_counters[index] = strtoul(buf, NULL, 0);
+
+	return size;
+}
+
+void acpi_irq_stats_init(void)
+{
+	int i;
+
+	if (all_counters)
+		return;
+
+	num_gpes = count_num_gpes();
+	num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
+
+	all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
+			GFP_KERNEL);
+	if (all_attrs == NULL)
+		return;
+
+	all_counters = kzalloc(sizeof(u32) * (num_counters), GFP_KERNEL);
+	if (all_counters == NULL)
+		goto fail;
+
+	counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
+			GFP_KERNEL);
+	if (counter_attrs == NULL)
+		goto fail;
+
+	for (i = 0; i < num_counters; ++i) {
+		char buffer[10];
+		char *name;
+
+		if (i < num_gpes)
+			sprintf(buffer, "gpe%02X", i);
+		else if (i == num_gpes + ACPI_EVENT_PMTIMER)
+			sprintf(buffer, "ff_pmtimer");
+		else if (i == num_gpes + ACPI_EVENT_GLOBAL)
+			sprintf(buffer, "ff_gbl_lock");
+		else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
+			sprintf(buffer, "ff_pwr_btn");
+		else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
+			sprintf(buffer, "ff_slp_btn");
+		else if (i == num_gpes + ACPI_EVENT_RTC)
+			sprintf(buffer, "ff_rt_clk");
+		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
+			sprintf(buffer, "gpe_all");
+		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
+			sprintf(buffer, "sci");
+		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
+			sprintf(buffer, "error");
+		else
+			sprintf(buffer, "bug%02X", i);
+
+		name = kzalloc(strlen(buffer) + 1, GFP_KERNEL);
+		if (name == NULL)
+			goto fail;
+		strncpy(name, buffer, strlen(buffer) + 1);
+
+		counter_attrs[i].attr.name = name;
+		counter_attrs[i].attr.mode = 0644;
+		counter_attrs[i].show = counter_show;
+		counter_attrs[i].store = counter_set;
+
+		all_attrs[i] = &counter_attrs[i].attr;
+	}
+
+	interrupt_stats_attr_group.attrs = all_attrs;
+	if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
+		return;
+
+fail:
+	delete_gpe_attr_array();
+	return;
+}
+
+static void __exit interrupt_stats_exit(void)
+{
+	sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);
+
+	delete_gpe_attr_array();
+
+	return;
+}
+
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */

drivers/acpi/tables/Makefile

@@ -2,6 +2,6 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-y := tbxface.o tbinstal.o  tbutils.o tbfind.o tbfadt.o
+obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)

drivers/acpi/tables/tbxfroot.c

@@ -100,7 +100,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_find_rsdp
+ * FUNCTION:    acpi_find_root_pointer
  *
  * PARAMETERS:  table_address           - Where the table pointer is returned
  *
@@ -219,8 +219,6 @@ acpi_status acpi_find_root_pointer(acpi_native_uint * table_address)
 	return_ACPI_STATUS(AE_NOT_FOUND);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_find_root_pointer)
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_tb_scan_memory_for_rsdp

drivers/acpi/thermal.c

@@ -43,7 +43,7 @@
 #include <linux/seq_file.h>
 #include <linux/reboot.h>
 #include <asm/uaccess.h>
-
+#include <linux/thermal.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
@@ -65,9 +65,6 @@
 #define ACPI_THERMAL_MAX_ACTIVE	10
 #define ACPI_THERMAL_MAX_LIMIT_STR_LEN 65
 
-#define KELVIN_TO_CELSIUS(t)    (long)(((long)t-2732>=0) ? ((long)t-2732+5)/10 : ((long)t-2732-5)/10)
-#define CELSIUS_TO_KELVIN(t)	((t+273)*10)
-
 #define _COMPONENT		ACPI_THERMAL_COMPONENT
 ACPI_MODULE_NAME("thermal");
 
@@ -195,6 +192,8 @@ struct acpi_thermal {
 	struct acpi_thermal_trips trips;
 	struct acpi_handle_list devices;
 	struct timer_list timer;
+	struct thermal_zone_device *thermal_zone;
+	int tz_enabled;
 	struct mutex lock;
 };
 
@@ -321,178 +320,226 @@ static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
 	return 0;
 }
 
-static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
+#define ACPI_TRIPS_CRITICAL	0x01
+#define ACPI_TRIPS_HOT		0x02
+#define ACPI_TRIPS_PASSIVE	0x04
+#define ACPI_TRIPS_ACTIVE	0x08
+#define ACPI_TRIPS_DEVICES	0x10
+
+#define ACPI_TRIPS_REFRESH_THRESHOLDS	(ACPI_TRIPS_PASSIVE | ACPI_TRIPS_ACTIVE)
+#define ACPI_TRIPS_REFRESH_DEVICES	ACPI_TRIPS_DEVICES
+
+#define ACPI_TRIPS_INIT      (ACPI_TRIPS_CRITICAL | ACPI_TRIPS_HOT |	\
+			      ACPI_TRIPS_PASSIVE | ACPI_TRIPS_ACTIVE |	\
+			      ACPI_TRIPS_DEVICES)
+
+/*
+ * This exception is thrown out in two cases:
+ * 1.An invalid trip point becomes invalid or a valid trip point becomes invalid
+ *   when re-evaluating the AML code.
+ * 2.TODO: Devices listed in _PSL, _ALx, _TZD may change.
+ *   We need to re-bind the cooling devices of a thermal zone when this occurs.
+ */
+#define ACPI_THERMAL_TRIPS_EXCEPTION(flags, str)	\
+do {	\
+	if (flags != ACPI_TRIPS_INIT)	\
+		ACPI_EXCEPTION((AE_INFO, AE_ERROR,	\
+		"ACPI thermal trip point %s changed\n"	\
+		"Please send acpidump to linux-acpi@vger.kernel.org\n", str)); \
+} while (0)
+
+static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 {
 	acpi_status status = AE_OK;
-	int i = 0;
+	struct acpi_handle_list devices;
-
+	int valid = 0;
-
+	int i;
-	if (!tz)
-		return -EINVAL;
 
 	/* Critical Shutdown (required) */
-
+	if (flag & ACPI_TRIPS_CRITICAL) {
-	status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL,
+		status = acpi_evaluate_integer(tz->device->handle,
-				       &tz->trips.critical.temperature);
+				"_CRT", NULL, &tz->trips.critical.temperature);
-	if (ACPI_FAILURE(status)) {
+		if (ACPI_FAILURE(status)) {
-		tz->trips.critical.flags.valid = 0;
-		ACPI_EXCEPTION((AE_INFO, status, "No critical threshold"));
-		return -ENODEV;
-	} else {
-		tz->trips.critical.flags.valid = 1;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Found critical threshold [%lu]\n",
-				  tz->trips.critical.temperature));
-	}
-
-	if (tz->trips.critical.flags.valid == 1) {
-		if (crt == -1) {
 			tz->trips.critical.flags.valid = 0;
-		} else if (crt > 0) {
+			ACPI_EXCEPTION((AE_INFO, status,
-			unsigned long crt_k = CELSIUS_TO_KELVIN(crt);
+					"No critical threshold"));
-
+			return -ENODEV;
-			/*
+		} else {
-			 * Allow override to lower critical threshold
+			tz->trips.critical.flags.valid = 1;
-			 */
+			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			if (crt_k < tz->trips.critical.temperature)
+					"Found critical threshold [%lu]\n",
-				tz->trips.critical.temperature = crt_k;
+					tz->trips.critical.temperature));
+		}
+		if (tz->trips.critical.flags.valid == 1) {
+			if (crt == -1) {
+				tz->trips.critical.flags.valid = 0;
+			} else if (crt > 0) {
+				unsigned long crt_k = CELSIUS_TO_KELVIN(crt);
+				/*
+				 * Allow override to lower critical threshold
+				 */
+				if (crt_k < tz->trips.critical.temperature)
+					tz->trips.critical.temperature = crt_k;
+			}
 		}
 	}
 
 	/* Critical Sleep (optional) */
-
+	if (flag & ACPI_TRIPS_HOT) {
-	status =
-	    acpi_evaluate_integer(tz->device->handle, "_HOT", NULL,
-				  &tz->trips.hot.temperature);
-	if (ACPI_FAILURE(status)) {
-		tz->trips.hot.flags.valid = 0;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No hot threshold\n"));
-	} else {
-		tz->trips.hot.flags.valid = 1;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%lu]\n",
-				  tz->trips.hot.temperature));
-	}
-
-	/* Passive: Processors (optional) */
-
-	if (psv == -1) {
-		status = AE_SUPPORT;
-	} else if (psv > 0) {
-		tz->trips.passive.temperature = CELSIUS_TO_KELVIN(psv);
-		status = AE_OK;
-	} else {
 		status = acpi_evaluate_integer(tz->device->handle,
-			"_PSV", NULL, &tz->trips.passive.temperature);
+				"_HOT", NULL, &tz->trips.hot.temperature);
-	}
+		if (ACPI_FAILURE(status)) {
-
+			tz->trips.hot.flags.valid = 0;
-	if (ACPI_FAILURE(status)) {
-		tz->trips.passive.flags.valid = 0;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No passive threshold\n"));
-	} else {
-		tz->trips.passive.flags.valid = 1;
-
-		status =
-		    acpi_evaluate_integer(tz->device->handle, "_TC1", NULL,
-					  &tz->trips.passive.tc1);
-		if (ACPI_FAILURE(status))
-			tz->trips.passive.flags.valid = 0;
-
-		status =
-		    acpi_evaluate_integer(tz->device->handle, "_TC2", NULL,
-					  &tz->trips.passive.tc2);
-		if (ACPI_FAILURE(status))
-			tz->trips.passive.flags.valid = 0;
-
-		status =
-		    acpi_evaluate_integer(tz->device->handle, "_TSP", NULL,
-					  &tz->trips.passive.tsp);
-		if (ACPI_FAILURE(status))
-			tz->trips.passive.flags.valid = 0;
-
-		status =
-		    acpi_evaluate_reference(tz->device->handle, "_PSL", NULL,
-					    &tz->trips.passive.devices);
-		if (ACPI_FAILURE(status))
-			tz->trips.passive.flags.valid = 0;
-
-		if (!tz->trips.passive.flags.valid)
-			printk(KERN_WARNING PREFIX "Invalid passive threshold\n");
-		else
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "Found passive threshold [%lu]\n",
+					"No hot threshold\n"));
-					  tz->trips.passive.temperature));
+		} else {
+			tz->trips.hot.flags.valid = 1;
+			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+					"Found hot threshold [%lu]\n",
+					tz->trips.critical.temperature));
+		}
 	}
 
-	/* Active: Fans, etc. (optional) */
+	/* Passive (optional) */
+	if (flag & ACPI_TRIPS_PASSIVE) {
+		valid = tz->trips.passive.flags.valid;
+		if (psv == -1) {
+			status = AE_SUPPORT;
+		} else if (psv > 0) {
+			tz->trips.passive.temperature = CELSIUS_TO_KELVIN(psv);
+			status = AE_OK;
+		} else {
+			status = acpi_evaluate_integer(tz->device->handle,
+				"_PSV", NULL, &tz->trips.passive.temperature);
+		}
 
+		if (ACPI_FAILURE(status))
+			tz->trips.passive.flags.valid = 0;
+		else {
+			tz->trips.passive.flags.valid = 1;
+			if (flag == ACPI_TRIPS_INIT) {
+				status = acpi_evaluate_integer(
+						tz->device->handle, "_TC1",
+						NULL, &tz->trips.passive.tc1);
+				if (ACPI_FAILURE(status))
+					tz->trips.passive.flags.valid = 0;
+				status = acpi_evaluate_integer(
+						tz->device->handle, "_TC2",
+						NULL, &tz->trips.passive.tc2);
+				if (ACPI_FAILURE(status))
+					tz->trips.passive.flags.valid = 0;
+				status = acpi_evaluate_integer(
+						tz->device->handle, "_TSP",
+						NULL, &tz->trips.passive.tsp);
+				if (ACPI_FAILURE(status))
+					tz->trips.passive.flags.valid = 0;
+			}
+		}
+	}
+	if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.passive.flags.valid) {
+		memset(&devices, 0, sizeof(struct acpi_handle_list));
+		status = acpi_evaluate_reference(tz->device->handle, "_PSL",
+							NULL, &devices);
+		if (ACPI_FAILURE(status))
+			tz->trips.passive.flags.valid = 0;
+		else
+			tz->trips.passive.flags.valid = 1;
+
+		if (memcmp(&tz->trips.passive.devices, &devices,
+				sizeof(struct acpi_handle_list))) {
+			memcpy(&tz->trips.passive.devices, &devices,
+				sizeof(struct acpi_handle_list));
+			ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
+		}
+	}
+	if ((flag & ACPI_TRIPS_PASSIVE) || (flag & ACPI_TRIPS_DEVICES)) {
+		if (valid != tz->trips.passive.flags.valid)
+				ACPI_THERMAL_TRIPS_EXCEPTION(flag, "state");
+	}
+
+	/* Active (optional) */
 	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
-
 		char name[5] = { '_', 'A', 'C', ('0' + i), '\0' };
+		valid = tz->trips.active[i].flags.valid;
 
 		if (act == -1)
-			break;	/* disable all active trip points */
+			break; /* disable all active trip points */
 
-		status = acpi_evaluate_integer(tz->device->handle,
+		if (flag & ACPI_TRIPS_ACTIVE) {
-			name, NULL, &tz->trips.active[i].temperature);
+			status = acpi_evaluate_integer(tz->device->handle,
-
+				name, NULL, &tz->trips.active[i].temperature);
-		if (ACPI_FAILURE(status)) {
+			if (ACPI_FAILURE(status)) {
-			if (i == 0)	/* no active trip points */
+				tz->trips.active[i].flags.valid = 0;
+				if (i == 0)
+					break;
+				if (act <= 0)
+					break;
+				if (i == 1)
+					tz->trips.active[0].temperature =
+						CELSIUS_TO_KELVIN(act);
+				else
+					/*
+					 * Don't allow override higher than
+					 * the next higher trip point
+					 */
+					tz->trips.active[i - 1].temperature =
+						(tz->trips.active[i - 2].temperature <
+						CELSIUS_TO_KELVIN(act) ?
+						tz->trips.active[i - 2].temperature :
+						CELSIUS_TO_KELVIN(act));
 				break;
-			if (act <= 0)	/* no override requested */
+			} else
-				break;
+				tz->trips.active[i].flags.valid = 1;
-			if (i == 1) {	/* 1 trip point */
-				tz->trips.active[0].temperature =
-					CELSIUS_TO_KELVIN(act);
-			} else {	/* multiple trips */
-				/*
-				 * Don't allow override higher than
-				 * the next higher trip point
-				 */
-				tz->trips.active[i - 1].temperature =
-				    (tz->trips.active[i - 2].temperature <
-					CELSIUS_TO_KELVIN(act) ?
-					tz->trips.active[i - 2].temperature :
-					CELSIUS_TO_KELVIN(act));
-			}
-			break;
 		}
 
 		name[2] = 'L';
-		status =
+		if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.active[i].flags.valid ) {
-		    acpi_evaluate_reference(tz->device->handle, name, NULL,
+			memset(&devices, 0, sizeof(struct acpi_handle_list));
-					    &tz->trips.active[i].devices);
+			status = acpi_evaluate_reference(tz->device->handle,
-		if (ACPI_SUCCESS(status)) {
+						name, NULL, &devices);
-			tz->trips.active[i].flags.valid = 1;
+			if (ACPI_FAILURE(status))
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+				tz->trips.active[i].flags.valid = 0;
-					  "Found active threshold [%d]:[%lu]\n",
+			else
-					  i, tz->trips.active[i].temperature));
+				tz->trips.active[i].flags.valid = 1;
-		} else
+
-			ACPI_EXCEPTION((AE_INFO, status,
+			if (memcmp(&tz->trips.active[i].devices, &devices,
-					"Invalid active threshold [%d]", i));
+					sizeof(struct acpi_handle_list))) {
+				memcpy(&tz->trips.active[i].devices, &devices,
+					sizeof(struct acpi_handle_list));
+				ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
+			}
+		}
+		if ((flag & ACPI_TRIPS_ACTIVE) || (flag & ACPI_TRIPS_DEVICES))
+			if (valid != tz->trips.active[i].flags.valid)
+				ACPI_THERMAL_TRIPS_EXCEPTION(flag, "state");
+
+		if (!tz->trips.active[i].flags.valid)
+			break;
+	}
+
+	if (flag & ACPI_TRIPS_DEVICES) {
+		memset(&devices, 0, sizeof(struct acpi_handle_list));
+		status = acpi_evaluate_reference(tz->device->handle, "_TZD",
+						NULL, &devices);
+		if (memcmp(&tz->devices, &devices,
+				sizeof(struct acpi_handle_list))) {
+			memcpy(&tz->devices, &devices,
+				sizeof(struct acpi_handle_list));
+			ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
+		}
 	}
 
 	return 0;
 }
 
-static int acpi_thermal_get_devices(struct acpi_thermal *tz)
+static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 {
-	acpi_status status = AE_OK;
+	return acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT);
-
-
-	if (!tz)
-		return -EINVAL;
-
-	status =
-	    acpi_evaluate_reference(tz->device->handle, "_TZD", NULL, &tz->devices);
-	if (ACPI_FAILURE(status))
-		return -ENODEV;
-
-	return 0;
 }
 
 static int acpi_thermal_critical(struct acpi_thermal *tz)
 {
-	if (!tz || !tz->trips.critical.flags.valid || nocrt)
+	if (!tz || !tz->trips.critical.flags.valid)
 		return -EINVAL;
 
 	if (tz->temperature >= tz->trips.critical.temperature) {
@@ -501,9 +548,6 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 	} else if (tz->trips.critical.flags.enabled)
 		tz->trips.critical.flags.enabled = 0;
 
-	printk(KERN_EMERG
-	       "Critical temperature reached (%ld C), shutting down.\n",
-	       KELVIN_TO_CELSIUS(tz->temperature));
 	acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
 				tz->trips.critical.flags.enabled);
 	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
@@ -511,14 +555,20 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 					  ACPI_THERMAL_NOTIFY_CRITICAL,
 					  tz->trips.critical.flags.enabled);
 
-	orderly_poweroff(true);
+	/* take no action if nocrt is set */
+	if(!nocrt) {
+		printk(KERN_EMERG
+			"Critical temperature reached (%ld C), shutting down.\n",
+			KELVIN_TO_CELSIUS(tz->temperature));
+		orderly_poweroff(true);
+	}
 
 	return 0;
 }
 
 static int acpi_thermal_hot(struct acpi_thermal *tz)
 {
-	if (!tz || !tz->trips.hot.flags.valid || nocrt)
+	if (!tz || !tz->trips.hot.flags.valid)
 		return -EINVAL;
 
 	if (tz->temperature >= tz->trips.hot.temperature) {
@@ -534,7 +584,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
 					  ACPI_THERMAL_NOTIFY_HOT,
 					  tz->trips.hot.flags.enabled);
 
-	/* TBD: Call user-mode "sleep(S4)" function */
+	/* TBD: Call user-mode "sleep(S4)" function if nocrt is cleared */
 
 	return 0;
 }
@@ -732,6 +782,9 @@ static void acpi_thermal_check(void *data)
 	if (result)
 		goto unlock;
 
+	if (!tz->tz_enabled)
+		goto unlock;
+
 	memset(&tz->state, 0, sizeof(tz->state));
 
 	/*
@@ -825,6 +878,290 @@ static void acpi_thermal_check(void *data)
 	mutex_unlock(&tz->lock);
 }
 
+/* sys I/F for generic thermal sysfs support */
+static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
+{
+	struct acpi_thermal *tz = thermal->devdata;
+
+	if (!tz)
+		return -EINVAL;
+
+	return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(tz->temperature));
+}
+
+static const char enabled[] = "kernel";
+static const char disabled[] = "user";
+static int thermal_get_mode(struct thermal_zone_device *thermal,
+				char *buf)
+{
+	struct acpi_thermal *tz = thermal->devdata;
+
+	if (!tz)
+		return -EINVAL;
+
+	return sprintf(buf, "%s\n", tz->tz_enabled ?
+			enabled : disabled);
+}
+
+static int thermal_set_mode(struct thermal_zone_device *thermal,
+				const char *buf)
+{
+	struct acpi_thermal *tz = thermal->devdata;
+	int enable;
+
+	if (!tz)
+		return -EINVAL;
+
+	/*
+	 * enable/disable thermal management from ACPI thermal driver
+	 */
+	if (!strncmp(buf, enabled, sizeof enabled - 1))
+		enable = 1;
+	else if (!strncmp(buf, disabled, sizeof disabled - 1))
+		enable = 0;
+	else
+		return -EINVAL;
+
+	if (enable != tz->tz_enabled) {
+		tz->tz_enabled = enable;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+			"%s ACPI thermal control\n",
+			tz->tz_enabled ? enabled : disabled));
+		acpi_thermal_check(tz);
+	}
+	return 0;
+}
+
+static int thermal_get_trip_type(struct thermal_zone_device *thermal,
+				 int trip, char *buf)
+{
+	struct acpi_thermal *tz = thermal->devdata;
+	int i;
+
+	if (!tz || trip < 0)
+		return -EINVAL;
+
+	if (tz->trips.critical.flags.valid) {
+		if (!trip)
+			return sprintf(buf, "critical\n");
+		trip--;
+	}
+
+	if (tz->trips.hot.flags.valid) {
+		if (!trip)
+			return sprintf(buf, "hot\n");
+		trip--;
+	}
+
+	if (tz->trips.passive.flags.valid) {
+		if (!trip)
+			return sprintf(buf, "passive\n");
+		trip--;
+	}
+
+	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
+		tz->trips.active[i].flags.valid; i++) {
+		if (!trip)
+			return sprintf(buf, "active%d\n", i);
+		trip--;
+	}
+
+	return -EINVAL;
+}
+
+static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
+				 int trip, char *buf)
+{
+	struct acpi_thermal *tz = thermal->devdata;
+	int i;
+
+	if (!tz || trip < 0)
+		return -EINVAL;
+
+	if (tz->trips.critical.flags.valid) {
+		if (!trip)
+			return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+				tz->trips.critical.temperature));
+		trip--;
+	}
+
+	if (tz->trips.hot.flags.valid) {
+		if (!trip)
+			return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+					tz->trips.hot.temperature));
+		trip--;
+	}
+
+	if (tz->trips.passive.flags.valid) {
+		if (!trip)
+			return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+					tz->trips.passive.temperature));
+		trip--;
+	}
+
+	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
+		tz->trips.active[i].flags.valid; i++) {
+		if (!trip)
+			return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+					tz->trips.active[i].temperature));
+		trip--;
+	}
+
+	return -EINVAL;
+}
+
+typedef int (*cb)(struct thermal_zone_device *, int,
+		  struct thermal_cooling_device *);
+static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
+					struct thermal_cooling_device *cdev,
+					cb action)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_thermal *tz = thermal->devdata;
+	struct acpi_device *dev;
+	acpi_status status;
+	acpi_handle handle;
+	int i;
+	int j;
+	int trip = -1;
+	int result = 0;
+
+	if (tz->trips.critical.flags.valid)
+		trip++;
+
+	if (tz->trips.hot.flags.valid)
+		trip++;
+
+	if (tz->trips.passive.flags.valid) {
+		trip++;
+		for (i = 0; i < tz->trips.passive.devices.count;
+		    i++) {
+			handle = tz->trips.passive.devices.handles[i];
+			status = acpi_bus_get_device(handle, &dev);
+			if (ACPI_SUCCESS(status) && (dev == device)) {
+				result = action(thermal, trip, cdev);
+				if (result)
+					goto failed;
+			}
+		}
+	}
+
+	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
+		if (!tz->trips.active[i].flags.valid)
+			break;
+		trip++;
+		for (j = 0;
+		    j < tz->trips.active[i].devices.count;
+		    j++) {
+			handle = tz->trips.active[i].devices.handles[j];
+			status = acpi_bus_get_device(handle, &dev);
+			if (ACPI_SUCCESS(status) && (dev == device)) {
+				result = action(thermal, trip, cdev);
+				if (result)
+					goto failed;
+			}
+		}
+	}
+
+	for (i = 0; i < tz->devices.count; i++) {
+		handle = tz->devices.handles[i];
+		status = acpi_bus_get_device(handle, &dev);
+		if (ACPI_SUCCESS(status) && (dev == device)) {
+			result = action(thermal, -1, cdev);
+			if (result)
+				goto failed;
+		}
+	}
+
+failed:
+	return result;
+}
+
+static int
+acpi_thermal_bind_cooling_device(struct thermal_zone_device *thermal,
+					struct thermal_cooling_device *cdev)
+{
+	return acpi_thermal_cooling_device_cb(thermal, cdev,
+				thermal_zone_bind_cooling_device);
+}
+
+static int
+acpi_thermal_unbind_cooling_device(struct thermal_zone_device *thermal,
+					struct thermal_cooling_device *cdev)
+{
+	return acpi_thermal_cooling_device_cb(thermal, cdev,
+				thermal_zone_unbind_cooling_device);
+}
+
+static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
+	.bind = acpi_thermal_bind_cooling_device,
+	.unbind	= acpi_thermal_unbind_cooling_device,
+	.get_temp = thermal_get_temp,
+	.get_mode = thermal_get_mode,
+	.set_mode = thermal_set_mode,
+	.get_trip_type = thermal_get_trip_type,
+	.get_trip_temp = thermal_get_trip_temp,
+};
+
+static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
+{
+	int trips = 0;
+	int result;
+	acpi_status status;
+	int i;
+
+	if (tz->trips.critical.flags.valid)
+		trips++;
+
+	if (tz->trips.hot.flags.valid)
+		trips++;
+
+	if (tz->trips.passive.flags.valid)
+		trips++;
+
+	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
+			tz->trips.active[i].flags.valid; i++, trips++);
+	tz->thermal_zone = thermal_zone_device_register("ACPI thermal zone",
+					trips, tz, &acpi_thermal_zone_ops);
+	if (!tz->thermal_zone)
+		return -ENODEV;
+
+	result = sysfs_create_link(&tz->device->dev.kobj,
+				   &tz->thermal_zone->device.kobj, "thermal_zone");
+	if (result)
+		return result;
+
+	result = sysfs_create_link(&tz->thermal_zone->device.kobj,
+				   &tz->device->dev.kobj, "device");
+	if (result)
+		return result;
+
+	status = acpi_attach_data(tz->device->handle,
+				  acpi_bus_private_data_handler,
+				  tz->thermal_zone);
+	if (ACPI_FAILURE(status)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+				"Error attaching device data\n"));
+		return -ENODEV;
+	}
+
+	tz->tz_enabled = 1;
+
+	printk(KERN_INFO PREFIX "%s is registered as thermal_zone%d\n",
+			tz->device->dev.bus_id, tz->thermal_zone->id);
+	return 0;
+}
+
+static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)
+{
+	sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");
+	sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
+	thermal_zone_device_unregister(tz->thermal_zone);
+	tz->thermal_zone = NULL;
+	acpi_detach_data(tz->device->handle, acpi_bus_private_data_handler);
+}
+
+
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
@@ -1181,15 +1518,15 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
 		acpi_thermal_check(tz);
 		break;
 	case ACPI_THERMAL_NOTIFY_THRESHOLDS:
-		acpi_thermal_get_trip_points(tz);
+		acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_THRESHOLDS);
 		acpi_thermal_check(tz);
 		acpi_bus_generate_proc_event(device, event, 0);
 		acpi_bus_generate_netlink_event(device->pnp.device_class,
 						  device->dev.bus_id, event, 0);
 		break;
 	case ACPI_THERMAL_NOTIFY_DEVICES:
-		if (tz->flags.devices)
+		acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES);
-			acpi_thermal_get_devices(tz);
+		acpi_thermal_check(tz);
 		acpi_bus_generate_proc_event(device, event, 0);
 		acpi_bus_generate_netlink_event(device->pnp.device_class,
 						  device->dev.bus_id, event, 0);
@@ -1232,11 +1569,6 @@ static int acpi_thermal_get_info(struct acpi_thermal *tz)
 	else
 		acpi_thermal_get_polling_frequency(tz);
 
-	/* Get devices in this thermal zone [_TZD] (optional) */
-	result = acpi_thermal_get_devices(tz);
-	if (!result)
-		tz->flags.devices = 1;
-
 	return 0;
 }
 
@@ -1260,13 +1592,19 @@ static int acpi_thermal_add(struct acpi_device *device)
 	strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
 	acpi_driver_data(device) = tz;
 	mutex_init(&tz->lock);
+
+
 	result = acpi_thermal_get_info(tz);
 	if (result)
-		goto end;
+		goto free_memory;
+
+	result = acpi_thermal_register_thermal_zone(tz);
+	if (result)
+		goto free_memory;
 
 	result = acpi_thermal_add_fs(device);
 	if (result)
-		goto end;
+		goto unregister_thermal_zone;
 
 	init_timer(&tz->timer);
 
@@ -1277,19 +1615,21 @@ static int acpi_thermal_add(struct acpi_device *device)
 					     acpi_thermal_notify, tz);
 	if (ACPI_FAILURE(status)) {
 		result = -ENODEV;
-		goto end;
+		goto remove_fs;
 	}
 
 	printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
 	       acpi_device_name(device), acpi_device_bid(device),
 	       KELVIN_TO_CELSIUS(tz->temperature));
+	goto end;
 
-      end:
+remove_fs:
-	if (result) {
+	acpi_thermal_remove_fs(device);
-		acpi_thermal_remove_fs(device);
+unregister_thermal_zone:
-		kfree(tz);
+	thermal_zone_device_unregister(tz->thermal_zone);
-	}
+free_memory:
-
+	kfree(tz);
+end:
 	return result;
 }
 
@@ -1329,6 +1669,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
 	}
 
 	acpi_thermal_remove_fs(device);
+	acpi_thermal_unregister_thermal_zone(tz);
 	mutex_destroy(&tz->lock);
 	kfree(tz);
 	return 0;

drivers/acpi/utilities/utglobal.c

@@ -671,7 +671,6 @@ void acpi_ut_init_globals(void)
 
 	/* GPE support */
 
-	acpi_gpe_count = 0;
 	acpi_gbl_gpe_xrupt_list_head = NULL;
 	acpi_gbl_gpe_fadt_blocks[0] = NULL;
 	acpi_gbl_gpe_fadt_blocks[1] = NULL;
@@ -735,4 +734,3 @@ void acpi_ut_init_globals(void)
 
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
     ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
-    ACPI_EXPORT_SYMBOL(acpi_gpe_count)

drivers/acpi/video.c

@@ -34,6 +34,7 @@
 #include <linux/seq_file.h>
 #include <linux/input.h>
 #include <linux/backlight.h>
+#include <linux/thermal.h>
 #include <linux/video_output.h>
 #include <asm/uaccess.h>
 
@@ -72,8 +73,12 @@ MODULE_AUTHOR("Bruno Ducrot");
 MODULE_DESCRIPTION("ACPI Video Driver");
 MODULE_LICENSE("GPL");
 
+static int brightness_switch_enabled = 1;
+module_param(brightness_switch_enabled, bool, 0644);
+
 static int acpi_video_bus_add(struct acpi_device *device);
 static int acpi_video_bus_remove(struct acpi_device *device, int type);
+static int acpi_video_resume(struct acpi_device *device);
 
 static const struct acpi_device_id video_device_ids[] = {
 	{ACPI_VIDEO_HID, 0},
@@ -88,6 +93,7 @@ static struct acpi_driver acpi_video_bus = {
 	.ops = {
 		.add = acpi_video_bus_add,
 		.remove = acpi_video_bus_remove,
+		.resume = acpi_video_resume,
 		},
 };
 
@@ -179,6 +185,7 @@ struct acpi_video_device {
 	struct acpi_device *dev;
 	struct acpi_video_device_brightness *brightness;
 	struct backlight_device *backlight;
+	struct thermal_cooling_device *cdev;
 	struct output_device *output_dev;
 };
 
@@ -273,7 +280,6 @@ static void acpi_video_device_rebind(struct acpi_video_bus *video);
 static void acpi_video_device_bind(struct acpi_video_bus *video,
 				   struct acpi_video_device *device);
 static int acpi_video_device_enumerate(struct acpi_video_bus *video);
-static int acpi_video_switch_output(struct acpi_video_bus *video, int event);
 static int acpi_video_device_lcd_set_level(struct acpi_video_device *device,
 			int level);
 static int acpi_video_device_lcd_get_level_current(
@@ -292,18 +298,26 @@ static int acpi_video_device_set_state(struct acpi_video_device *device, int sta
 static int acpi_video_get_brightness(struct backlight_device *bd)
 {
 	unsigned long cur_level;
+	int i;
 	struct acpi_video_device *vd =
 		(struct acpi_video_device *)bl_get_data(bd);
 	acpi_video_device_lcd_get_level_current(vd, &cur_level);
-	return (int) cur_level;
+	for (i = 2; i < vd->brightness->count; i++) {
+		if (vd->brightness->levels[i] == cur_level)
+			/* The first two entries are special - see page 575
+			   of the ACPI spec 3.0 */
+			return i-2;
+	}
+	return 0;
 }
 
 static int acpi_video_set_brightness(struct backlight_device *bd)
 {
-	int request_level = bd->props.brightness;
+	int request_level = bd->props.brightness+2;
 	struct acpi_video_device *vd =
 		(struct acpi_video_device *)bl_get_data(bd);
-	acpi_video_device_lcd_set_level(vd, request_level);
+	acpi_video_device_lcd_set_level(vd,
+					vd->brightness->levels[request_level]);
 	return 0;
 }
 
@@ -334,6 +348,54 @@ static struct output_properties acpi_output_properties = {
 	.set_state = acpi_video_output_set,
 	.get_status = acpi_video_output_get,
 };
+
+
+/* thermal cooling device callbacks */
+static int video_get_max_state(struct thermal_cooling_device *cdev, char *buf)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_video_device *video = acpi_driver_data(device);
+
+	return sprintf(buf, "%d\n", video->brightness->count - 3);
+}
+
+static int video_get_cur_state(struct thermal_cooling_device *cdev, char *buf)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_video_device *video = acpi_driver_data(device);
+	unsigned long level;
+	int state;
+
+	acpi_video_device_lcd_get_level_current(video, &level);
+	for (state = 2; state < video->brightness->count; state++)
+		if (level == video->brightness->levels[state])
+			return sprintf(buf, "%d\n",
+				       video->brightness->count - state - 1);
+
+	return -EINVAL;
+}
+
+static int
+video_set_cur_state(struct thermal_cooling_device *cdev, unsigned int state)
+{
+	struct acpi_device *device = cdev->devdata;
+	struct acpi_video_device *video = acpi_driver_data(device);
+	int level;
+
+	if ( state >= video->brightness->count - 2)
+		return -EINVAL;
+
+	state = video->brightness->count - state;
+	level = video->brightness->levels[state -1];
+	return acpi_video_device_lcd_set_level(video, level);
+}
+
+static struct thermal_cooling_device_ops video_cooling_ops = {
+	.get_max_state = video_get_max_state,
+	.get_cur_state = video_get_cur_state,
+	.set_cur_state = video_set_cur_state,
+};
+
 /* --------------------------------------------------------------------------
                                Video Management
    -------------------------------------------------------------------------- */
@@ -652,7 +714,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 	kfree(obj);
 
 	if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){
-		unsigned long tmp;
+		int result;
 		static int count = 0;
 		char *name;
 		name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
@@ -660,14 +722,30 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 			return;
 
 		sprintf(name, "acpi_video%d", count++);
-		acpi_video_device_lcd_get_level_current(device, &tmp);
 		device->backlight = backlight_device_register(name,
 			NULL, device, &acpi_backlight_ops);
-		device->backlight->props.max_brightness = max_level;
+		device->backlight->props.max_brightness = device->brightness->count-3;
-		device->backlight->props.brightness = (int)tmp;
+		device->backlight->props.brightness = acpi_video_get_brightness(device->backlight);
 		backlight_update_status(device->backlight);
-
 		kfree(name);
+
+		device->cdev = thermal_cooling_device_register("LCD",
+					device->dev, &video_cooling_ops);
+		if (device->cdev) {
+			printk(KERN_INFO PREFIX
+				"%s is registered as cooling_device%d\n",
+				device->dev->dev.bus_id, device->cdev->id);
+			result = sysfs_create_link(&device->dev->dev.kobj,
+					  &device->cdev->device.kobj,
+					  "thermal_cooling");
+			if (result)
+				printk(KERN_ERR PREFIX "Create sysfs link\n");
+			result = sysfs_create_link(&device->cdev->device.kobj,
+					  &device->dev->dev.kobj,
+					  "device");
+                        if (result)
+				printk(KERN_ERR PREFIX "Create sysfs link\n");
+		}
 	}
 	if (device->cap._DCS && device->cap._DSS){
 		static int count = 0;
@@ -726,11 +804,40 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
 static int acpi_video_bus_check(struct acpi_video_bus *video)
 {
 	acpi_status status = -ENOENT;
-
+	long device_id;
+	struct device *dev;
+	struct acpi_device *device;
 
 	if (!video)
 		return -EINVAL;
 
+	device = video->device;
+
+	status =
+	    acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
+
+	if (!ACPI_SUCCESS(status))
+		return -ENODEV;
+
+	/* We need to attempt to determine whether the _ADR refers to a
+	   PCI device or not. There's no terribly good way to do this,
+	   so the best we can hope for is to assume that there'll never
+	   be a video device in the host bridge */
+	if (device_id >= 0x10000) {
+		/* It looks like a PCI device. Does it exist? */
+		dev = acpi_get_physical_device(device->handle);
+	} else {
+		/* It doesn't look like a PCI device. Does its parent
+		   exist? */
+		acpi_handle phandle;
+		if (acpi_get_parent(device->handle, &phandle))
+			return -ENODEV;
+		dev = acpi_get_physical_device(phandle);
+	}
+	if (!dev)
+		return -ENODEV;
+	put_device(dev);
+
 	/* Since there is no HID, CID and so on for VGA driver, we have
 	 * to check well known required nodes.
 	 */
@@ -1256,8 +1363,37 @@ acpi_video_bus_write_DOS(struct file *file,
 
 static int acpi_video_bus_add_fs(struct acpi_device *device)
 {
+	long device_id;
+	int status;
 	struct proc_dir_entry *entry = NULL;
 	struct acpi_video_bus *video;
+	struct device *dev;
+
+	status =
+	    acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
+
+	if (!ACPI_SUCCESS(status))
+		return -ENODEV;
+
+	/* We need to attempt to determine whether the _ADR refers to a
+	   PCI device or not. There's no terribly good way to do this,
+	   so the best we can hope for is to assume that there'll never
+	   be a video device in the host bridge */
+	if (device_id >= 0x10000) {
+		/* It looks like a PCI device. Does it exist? */
+		dev = acpi_get_physical_device(device->handle);
+	} else {
+		/* It doesn't look like a PCI device. Does its parent
+		   exist? */
+		acpi_handle phandle;
+		if (acpi_get_parent(device->handle, &phandle))
+			return -ENODEV;
+		dev = acpi_get_physical_device(phandle);
+	}
+	if (!dev)
+		return -ENODEV;
+	put_device(dev);
+
 
 
 	video = acpi_driver_data(device);
@@ -1580,64 +1716,6 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
 	return status;
 }
 
-/*
- *  Arg:
- *  	video	: video bus device 
- *  	event	: notify event
- *
- *  Return:
- *  	< 0	: error
- *  
- *	1. Find out the current active output device.
- *	2. Identify the next output device to switch to.
- *	3. call _DSS to do actual switch.
- */
-
-static int acpi_video_switch_output(struct acpi_video_bus *video, int event)
-{
-	struct list_head *node;
-	struct acpi_video_device *dev = NULL;
-	struct acpi_video_device *dev_next = NULL;
-	struct acpi_video_device *dev_prev = NULL;
-	unsigned long state;
-	int status = 0;
-
-	mutex_lock(&video->device_list_lock);
-
-	list_for_each(node, &video->video_device_list) {
-		dev = container_of(node, struct acpi_video_device, entry);
-		status = acpi_video_device_get_state(dev, &state);
-		if (state & 0x2) {
-			dev_next = container_of(node->next,
-					struct acpi_video_device, entry);
-			dev_prev = container_of(node->prev,
-					struct acpi_video_device, entry);
-			goto out;
-		}
-	}
-
-	dev_next = container_of(node->next, struct acpi_video_device, entry);
-	dev_prev = container_of(node->prev, struct acpi_video_device, entry);
-
- out:
-	mutex_unlock(&video->device_list_lock);
-
-	switch (event) {
-	case ACPI_VIDEO_NOTIFY_CYCLE:
-	case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:
-		acpi_video_device_set_state(dev, 0);
-		acpi_video_device_set_state(dev_next, 0x80000001);
-		break;
-	case ACPI_VIDEO_NOTIFY_PREV_OUTPUT:
-		acpi_video_device_set_state(dev, 0);
-		acpi_video_device_set_state(dev_prev, 0x80000001);
-	default:
-		break;
-	}
-
-	return status;
-}
-
 static int
 acpi_video_get_next_level(struct acpi_video_device *device,
 			  u32 level_current, u32 event)
@@ -1729,6 +1807,14 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
 					    ACPI_DEVICE_NOTIFY,
 					    acpi_video_device_notify);
 	backlight_device_unregister(device->backlight);
+	if (device->cdev) {
+		sysfs_remove_link(&device->dev->dev.kobj,
+				  "thermal_cooling");
+		sysfs_remove_link(&device->cdev->device.kobj,
+				  "device");
+		thermal_cooling_device_unregister(device->cdev);
+		device->cdev = NULL;
+	}
 	video_output_unregister(device->output_dev);
 
 	return 0;
@@ -1797,23 +1883,19 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 					 * connector. */
 		acpi_video_device_enumerate(video);
 		acpi_video_device_rebind(video);
-		acpi_video_switch_output(video, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_SWITCHVIDEOMODE;
 		break;
 
 	case ACPI_VIDEO_NOTIFY_CYCLE:	/* Cycle Display output hotkey pressed. */
-		acpi_video_switch_output(video, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_SWITCHVIDEOMODE;
 		break;
 	case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:	/* Next Display output hotkey pressed. */
-		acpi_video_switch_output(video, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_VIDEO_NEXT;
 		break;
 	case ACPI_VIDEO_NOTIFY_PREV_OUTPUT:	/* previous Display output hotkey pressed. */
-		acpi_video_switch_output(video, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_VIDEO_PREV;
 		break;
@@ -1825,6 +1907,7 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 		break;
 	}
 
+	acpi_notifier_call_chain(device, event, 0);
 	input_report_key(input, keycode, 1);
 	input_sync(input);
 	input_report_key(input, keycode, 0);
@@ -1850,27 +1933,32 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 
 	switch (event) {
 	case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS:	/* Cycle brightness */
-		acpi_video_switch_brightness(video_device, event);
+		if (brightness_switch_enabled)
+			acpi_video_switch_brightness(video_device, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_BRIGHTNESS_CYCLE;
 		break;
 	case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS:	/* Increase brightness */
-		acpi_video_switch_brightness(video_device, event);
+		if (brightness_switch_enabled)
+			acpi_video_switch_brightness(video_device, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_BRIGHTNESSUP;
 		break;
 	case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS:	/* Decrease brightness */
-		acpi_video_switch_brightness(video_device, event);
+		if (brightness_switch_enabled)
+			acpi_video_switch_brightness(video_device, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_BRIGHTNESSDOWN;
 		break;
 	case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS:	/* zero brightnesss */
-		acpi_video_switch_brightness(video_device, event);
+		if (brightness_switch_enabled)
+			acpi_video_switch_brightness(video_device, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_BRIGHTNESS_ZERO;
 		break;
 	case ACPI_VIDEO_NOTIFY_DISPLAY_OFF:	/* display device off */
-		acpi_video_switch_brightness(video_device, event);
+		if (brightness_switch_enabled)
+			acpi_video_switch_brightness(video_device, event);
 		acpi_bus_generate_proc_event(device, event, 0);
 		keycode = KEY_DISPLAY_OFF;
 		break;
@@ -1881,6 +1969,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 		break;
 	}
 
+	acpi_notifier_call_chain(device, event, 0);
 	input_report_key(input, keycode, 1);
 	input_sync(input);
 	input_report_key(input, keycode, 0);
@@ -1890,6 +1979,25 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 }
 
 static int instance;
+static int acpi_video_resume(struct acpi_device *device)
+{
+	struct acpi_video_bus *video;
+	struct acpi_video_device *video_device;
+	int i;
+
+	if (!device || !acpi_driver_data(device))
+		return -EINVAL;
+
+	video = acpi_driver_data(device);
+
+	for (i = 0; i < video->attached_count; i++) {
+		video_device = video->attached_array[i].bind_info;
+		if (video_device && video_device->backlight)
+			acpi_video_set_brightness(video_device->backlight);
+	}
+	return AE_OK;
+}
+
 static int acpi_video_bus_add(struct acpi_device *device)
 {
 	acpi_status status;

drivers/acpi/wmi.c

@@ -0,0 +1,710 @@
+/*
+ *  ACPI-WMI mapping driver
+ *
+ *  Copyright (C) 2007-2008 Carlos Corbacho <carlos@strangeworlds.co.uk>
+ *
+ *  GUID parsing code from ldm.c is:
+ *   Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>
+ *   Copyright (c) 2001-2007 Anton Altaparmakov
+ *   Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or (at
+ *  your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+ACPI_MODULE_NAME("wmi");
+MODULE_AUTHOR("Carlos Corbacho");
+MODULE_DESCRIPTION("ACPI-WMI Mapping Driver");
+MODULE_LICENSE("GPL");
+
+#define ACPI_WMI_CLASS "wmi"
+
+#undef PREFIX
+#define PREFIX "ACPI: WMI: "
+
+static DEFINE_MUTEX(wmi_data_lock);
+
+struct guid_block {
+	char guid[16];
+	union {
+		char object_id[2];
+		struct {
+			unsigned char notify_id;
+			unsigned char reserved;
+		};
+	};
+	u8 instance_count;
+	u8 flags;
+};
+
+struct wmi_block {
+	struct list_head list;
+	struct guid_block gblock;
+	acpi_handle handle;
+	wmi_notify_handler handler;
+	void *handler_data;
+};
+
+static struct wmi_block wmi_blocks;
+
+/*
+ * If the GUID data block is marked as expensive, we must enable and
+ * explicitily disable data collection.
+ */
+#define ACPI_WMI_EXPENSIVE   0x1
+#define ACPI_WMI_METHOD      0x2	/* GUID is a method */
+#define ACPI_WMI_STRING      0x4	/* GUID takes & returns a string */
+#define ACPI_WMI_EVENT       0x8	/* GUID is an event */
+
+static int acpi_wmi_remove(struct acpi_device *device, int type);
+static int acpi_wmi_add(struct acpi_device *device);
+
+static const struct acpi_device_id wmi_device_ids[] = {
+	{"PNP0C14", 0},
+	{"pnp0c14", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, wmi_device_ids);
+
+static struct acpi_driver acpi_wmi_driver = {
+	.name = "wmi",
+	.class = ACPI_WMI_CLASS,
+	.ids = wmi_device_ids,
+	.ops = {
+		.add = acpi_wmi_add,
+		.remove = acpi_wmi_remove,
+		},
+};
+
+/*
+ * GUID parsing functions
+ */
+
+/**
+ * wmi_parse_hexbyte - Convert a ASCII hex number to a byte
+ * @src:  Pointer to at least 2 characters to convert.
+ *
+ * Convert a two character ASCII hex string to a number.
+ *
+ * Return:  0-255  Success, the byte was parsed correctly
+ *          -1     Error, an invalid character was supplied
+ */
+static int wmi_parse_hexbyte(const u8 *src)
+{
+	unsigned int x; /* For correct wrapping */
+	int h;
+
+	/* high part */
+	x = src[0];
+	if (x - '0' <= '9' - '0') {
+		h = x - '0';
+	} else if (x - 'a' <= 'f' - 'a') {
+		h = x - 'a' + 10;
+	} else if (x - 'A' <= 'F' - 'A') {
+		h = x - 'A' + 10;
+	} else {
+		return -1;
+	}
+	h <<= 4;
+
+	/* low part */
+	x = src[1];
+	if (x - '0' <= '9' - '0')
+		return h | (x - '0');
+	if (x - 'a' <= 'f' - 'a')
+		return h | (x - 'a' + 10);
+	if (x - 'A' <= 'F' - 'A')
+		return h | (x - 'A' + 10);
+	return -1;
+}
+
+/**
+ * wmi_swap_bytes - Rearrange GUID bytes to match GUID binary
+ * @src:   Memory block holding binary GUID (16 bytes)
+ * @dest:  Memory block to hold byte swapped binary GUID (16 bytes)
+ *
+ * Byte swap a binary GUID to match it's real GUID value
+ */
+static void wmi_swap_bytes(u8 *src, u8 *dest)
+{
+	int i;
+
+	for (i = 0; i <= 3; i++)
+		memcpy(dest + i, src + (3 - i), 1);
+
+	for (i = 0; i <= 1; i++)
+		memcpy(dest + 4 + i, src + (5 - i), 1);
+
+	for (i = 0; i <= 1; i++)
+		memcpy(dest + 6 + i, src + (7 - i), 1);
+
+	memcpy(dest + 8, src + 8, 8);
+}
+
+/**
+ * wmi_parse_guid - Convert GUID from ASCII to binary
+ * @src:   36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ * @dest:  Memory block to hold binary GUID (16 bytes)
+ *
+ * N.B. The GUID need not be NULL terminated.
+ *
+ * Return:  'true'   @dest contains binary GUID
+ *          'false'  @dest contents are undefined
+ */
+static bool wmi_parse_guid(const u8 *src, u8 *dest)
+{
+	static const int size[] = { 4, 2, 2, 2, 6 };
+	int i, j, v;
+
+	if (src[8]  != '-' || src[13] != '-' ||
+		src[18] != '-' || src[23] != '-')
+		return false;
+
+	for (j = 0; j < 5; j++, src++) {
+		for (i = 0; i < size[j]; i++, src += 2, *dest++ = v) {
+			v = wmi_parse_hexbyte(src);
+			if (v < 0)
+				return false;
+		}
+	}
+
+	return true;
+}
+
+static bool find_guid(const char *guid_string, struct wmi_block **out)
+{
+	char tmp[16], guid_input[16];
+	struct wmi_block *wblock;
+	struct guid_block *block;
+	struct list_head *p;
+
+	wmi_parse_guid(guid_string, tmp);
+	wmi_swap_bytes(tmp, guid_input);
+
+	list_for_each(p, &wmi_blocks.list) {
+		wblock = list_entry(p, struct wmi_block, list);
+		block = &wblock->gblock;
+
+		if (memcmp(block->guid, guid_input, 16) == 0) {
+			if (out)
+				*out = wblock;
+			return 1;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Exported WMI functions
+ */
+/**
+ * wmi_evaluate_method - Evaluate a WMI method
+ * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ * @instance: Instance index
+ * @method_id: Method ID to call
+ * &in: Buffer containing input for the method call
+ * &out: Empty buffer to return the method results
+ *
+ * Call an ACPI-WMI method
+ */
+acpi_status wmi_evaluate_method(const char *guid_string, u8 instance,
+u32 method_id, const struct acpi_buffer *in, struct acpi_buffer *out)
+{
+	struct guid_block *block = NULL;
+	struct wmi_block *wblock = NULL;
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	union acpi_object params[3];
+	char method[4] = "WM";
+
+	if (!find_guid(guid_string, &wblock))
+		return AE_BAD_ADDRESS;
+
+	block = &wblock->gblock;
+	handle = wblock->handle;
+
+	if (!block->flags & ACPI_WMI_METHOD)
+		return AE_BAD_DATA;
+
+	if (block->instance_count < instance)
+		return AE_BAD_PARAMETER;
+
+	input.count = 2;
+	input.pointer = params;
+	params[0].type = ACPI_TYPE_INTEGER;
+	params[0].integer.value = instance;
+	params[1].type = ACPI_TYPE_INTEGER;
+	params[1].integer.value = method_id;
+
+	if (in) {
+		input.count = 3;
+
+		if (block->flags & ACPI_WMI_STRING) {
+			params[2].type = ACPI_TYPE_STRING;
+		} else {
+			params[2].type = ACPI_TYPE_BUFFER;
+		}
+		params[2].buffer.length = in->length;
+		params[2].buffer.pointer = in->pointer;
+	}
+
+	strncat(method, block->object_id, 2);
+
+	status = acpi_evaluate_object(handle, method, &input, out);
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(wmi_evaluate_method);
+
+/**
+ * wmi_query_block - Return contents of a WMI block
+ * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ * @instance: Instance index
+ * &out: Empty buffer to return the contents of the data block to
+ *
+ * Return the contents of an ACPI-WMI data block to a buffer
+ */
+acpi_status wmi_query_block(const char *guid_string, u8 instance,
+struct acpi_buffer *out)
+{
+	struct guid_block *block = NULL;
+	struct wmi_block *wblock = NULL;
+	acpi_handle handle;
+	acpi_status status, wc_status = AE_ERROR;
+	struct acpi_object_list input, wc_input;
+	union acpi_object wc_params[1], wq_params[1];
+	char method[4];
+	char wc_method[4] = "WC";
+
+	if (!guid_string || !out)
+		return AE_BAD_PARAMETER;
+
+	if (!find_guid(guid_string, &wblock))
+		return AE_BAD_ADDRESS;
+
+	block = &wblock->gblock;
+	handle = wblock->handle;
+
+	if (block->instance_count < instance)
+		return AE_BAD_PARAMETER;
+
+	/* Check GUID is a data block */
+	if (block->flags & (ACPI_WMI_EVENT | ACPI_WMI_METHOD))
+		return AE_BAD_ADDRESS;
+
+	input.count = 1;
+	input.pointer = wq_params;
+	wq_params[0].type = ACPI_TYPE_INTEGER;
+	wq_params[0].integer.value = instance;
+
+	/*
+	 * If ACPI_WMI_EXPENSIVE, call the relevant WCxx method first to
+	 * enable collection.
+	 */
+	if (block->flags & ACPI_WMI_EXPENSIVE) {
+		wc_input.count = 1;
+		wc_input.pointer = wc_params;
+		wc_params[0].type = ACPI_TYPE_INTEGER;
+		wc_params[0].integer.value = 1;
+
+		strncat(wc_method, block->object_id, 2);
+
+		/*
+		 * Some GUIDs break the specification by declaring themselves
+		 * expensive, but have no corresponding WCxx method. So we
+		 * should not fail if this happens.
+		 */
+		wc_status = acpi_evaluate_object(handle, wc_method,
+			&wc_input, NULL);
+	}
+
+	strcpy(method, "WQ");
+	strncat(method, block->object_id, 2);
+
+	status = acpi_evaluate_object(handle, method, NULL, out);
+
+	/*
+	 * If ACPI_WMI_EXPENSIVE, call the relevant WCxx method, even if
+	 * the WQxx method failed - we should disable collection anyway.
+	 */
+	if ((block->flags & ACPI_WMI_EXPENSIVE) && wc_status) {
+		wc_params[0].integer.value = 0;
+		status = acpi_evaluate_object(handle,
+		wc_method, &wc_input, NULL);
+	}
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(wmi_query_block);
+
+/**
+ * wmi_set_block - Write to a WMI block
+ * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ * @instance: Instance index
+ * &in: Buffer containing new values for the data block
+ *
+ * Write the contents of the input buffer to an ACPI-WMI data block
+ */
+acpi_status wmi_set_block(const char *guid_string, u8 instance,
+const struct acpi_buffer *in)
+{
+	struct guid_block *block = NULL;
+	struct wmi_block *wblock = NULL;
+	acpi_handle handle;
+	struct acpi_object_list input;
+	union acpi_object params[2];
+	char method[4] = "WS";
+
+	if (!guid_string || !in)
+		return AE_BAD_DATA;
+
+	if (!find_guid(guid_string, &wblock))
+		return AE_BAD_ADDRESS;
+
+	block = &wblock->gblock;
+	handle = wblock->handle;
+
+	if (block->instance_count < instance)
+		return AE_BAD_PARAMETER;
+
+	/* Check GUID is a data block */
+	if (block->flags & (ACPI_WMI_EVENT | ACPI_WMI_METHOD))
+		return AE_BAD_ADDRESS;
+
+	input.count = 2;
+	input.pointer = params;
+	params[0].type = ACPI_TYPE_INTEGER;
+	params[0].integer.value = instance;
+
+	if (block->flags & ACPI_WMI_STRING) {
+		params[1].type = ACPI_TYPE_STRING;
+	} else {
+		params[1].type = ACPI_TYPE_BUFFER;
+	}
+	params[1].buffer.length = in->length;
+	params[1].buffer.pointer = in->pointer;
+
+	strncat(method, block->object_id, 2);
+
+	return acpi_evaluate_object(handle, method, &input, NULL);
+}
+EXPORT_SYMBOL_GPL(wmi_set_block);
+
+/**
+ * wmi_install_notify_handler - Register handler for WMI events
+ * @handler: Function to handle notifications
+ * @data: Data to be returned to handler when event is fired
+ *
+ * Register a handler for events sent to the ACPI-WMI mapper device.
+ */
+acpi_status wmi_install_notify_handler(const char *guid,
+wmi_notify_handler handler, void *data)
+{
+	struct wmi_block *block;
+
+	if (!guid || !handler)
+		return AE_BAD_PARAMETER;
+
+	find_guid(guid, &block);
+	if (!block)
+		return AE_NOT_EXIST;
+
+	if (block->handler)
+		return AE_ALREADY_ACQUIRED;
+
+	block->handler = handler;
+	block->handler_data = data;
+
+	return AE_OK;
+}
+EXPORT_SYMBOL_GPL(wmi_install_notify_handler);
+
+/**
+ * wmi_uninstall_notify_handler - Unregister handler for WMI events
+ *
+ * Unregister handler for events sent to the ACPI-WMI mapper device.
+ */
+acpi_status wmi_remove_notify_handler(const char *guid)
+{
+	struct wmi_block *block;
+
+	if (!guid)
+		return AE_BAD_PARAMETER;
+
+	find_guid(guid, &block);
+	if (!block)
+		return AE_NOT_EXIST;
+
+	if (!block->handler)
+		return AE_NULL_ENTRY;
+
+	block->handler = NULL;
+	block->handler_data = NULL;
+
+	return AE_OK;
+}
+EXPORT_SYMBOL_GPL(wmi_remove_notify_handler);
+
+/**
+ * wmi_get_event_data - Get WMI data associated with an event
+ *
+ * @event - Event to find
+ * &out - Buffer to hold event data
+ *
+ * Returns extra data associated with an event in WMI.
+ */
+acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out)
+{
+	struct acpi_object_list input;
+	union acpi_object params[1];
+	struct guid_block *gblock;
+	struct wmi_block *wblock;
+	struct list_head *p;
+
+	input.count = 1;
+	input.pointer = params;
+	params[0].type = ACPI_TYPE_INTEGER;
+	params[0].integer.value = event;
+
+	list_for_each(p, &wmi_blocks.list) {
+		wblock = list_entry(p, struct wmi_block, list);
+		gblock = &wblock->gblock;
+
+		if ((gblock->flags & ACPI_WMI_EVENT) &&
+			(gblock->notify_id == event))
+			return acpi_evaluate_object(wblock->handle, "_WED",
+				&input, out);
+	}
+
+	return AE_NOT_FOUND;
+}
+EXPORT_SYMBOL_GPL(wmi_get_event_data);
+
+/**
+ * wmi_has_guid - Check if a GUID is available
+ * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ *
+ * Check if a given GUID is defined by _WDG
+ */
+bool wmi_has_guid(const char *guid_string)
+{
+	return find_guid(guid_string, NULL);
+}
+EXPORT_SYMBOL_GPL(wmi_has_guid);
+
+/*
+ * Parse the _WDG method for the GUID data blocks
+ */
+static __init acpi_status parse_wdg(acpi_handle handle)
+{
+	struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
+	union acpi_object *obj;
+	struct guid_block *gblock;
+	struct wmi_block *wblock;
+	acpi_status status;
+	u32 i, total;
+
+	status = acpi_evaluate_object(handle, "_WDG", NULL, &out);
+
+	if (ACPI_FAILURE(status))
+		return status;
+
+	obj = (union acpi_object *) out.pointer;
+
+	if (obj->type != ACPI_TYPE_BUFFER)
+		return AE_ERROR;
+
+	total = obj->buffer.length / sizeof(struct guid_block);
+
+	gblock = kzalloc(obj->buffer.length, GFP_KERNEL);
+	if (!gblock)
+		return AE_NO_MEMORY;
+
+	memcpy(gblock, obj->buffer.pointer, obj->buffer.length);
+
+	for (i = 0; i < total; i++) {
+		wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);
+		if (!wblock)
+			return AE_NO_MEMORY;
+
+		wblock->gblock = gblock[i];
+		wblock->handle = handle;
+		list_add_tail(&wblock->list, &wmi_blocks.list);
+	}
+
+	kfree(out.pointer);
+	kfree(gblock);
+
+	return status;
+}
+
+/*
+ * WMI can have EmbeddedControl access regions. In which case, we just want to
+ * hand these off to the EC driver.
+ */
+static acpi_status
+acpi_wmi_ec_space_handler(u32 function, acpi_physical_address address,
+		      u32 bits, acpi_integer * value,
+		      void *handler_context, void *region_context)
+{
+	int result = 0, i = 0;
+	u8 temp = 0;
+
+	if ((address > 0xFF) || !value)
+		return AE_BAD_PARAMETER;
+
+	if (function != ACPI_READ && function != ACPI_WRITE)
+		return AE_BAD_PARAMETER;
+
+	if (bits != 8)
+		return AE_BAD_PARAMETER;
+
+	if (function == ACPI_READ) {
+		result = ec_read(address, &temp);
+		(*value) |= ((acpi_integer)temp) << i;
+	} else {
+		temp = 0xff & ((*value) >> i);
+		result = ec_write(address, temp);
+	}
+
+	switch (result) {
+	case -EINVAL:
+		return AE_BAD_PARAMETER;
+		break;
+	case -ENODEV:
+		return AE_NOT_FOUND;
+		break;
+	case -ETIME:
+		return AE_TIME;
+		break;
+	default:
+		return AE_OK;
+	}
+}
+
+static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
+{
+	struct guid_block *block;
+	struct wmi_block *wblock;
+	struct list_head *p;
+	struct acpi_device *device = data;
+
+	list_for_each(p, &wmi_blocks.list) {
+		wblock = list_entry(p, struct wmi_block, list);
+		block = &wblock->gblock;
+
+		if ((block->flags & ACPI_WMI_EVENT) &&
+			(block->notify_id == event)) {
+			if (wblock->handler)
+				wblock->handler(event, wblock->handler_data);
+
+			acpi_bus_generate_netlink_event(
+				device->pnp.device_class, device->dev.bus_id,
+				event, 0);
+			break;
+		}
+	}
+}
+
+static int acpi_wmi_remove(struct acpi_device *device, int type)
+{
+	acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
+		acpi_wmi_notify);
+
+	acpi_remove_address_space_handler(device->handle,
+				ACPI_ADR_SPACE_EC, &acpi_wmi_ec_space_handler);
+
+	return 0;
+}
+
+static int __init acpi_wmi_add(struct acpi_device *device)
+{
+	acpi_status status;
+	int result = 0;
+
+	status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
+		acpi_wmi_notify, device);
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_ERR PREFIX "Error installing notify handler\n");
+		return -ENODEV;
+	}
+
+	status = acpi_install_address_space_handler(device->handle,
+						    ACPI_ADR_SPACE_EC,
+						    &acpi_wmi_ec_space_handler,
+						    NULL, NULL);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	status = parse_wdg(device->handle);
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_ERR PREFIX "Error installing EC region handler\n");
+		return -ENODEV;
+	}
+
+	return result;
+}
+
+static int __init acpi_wmi_init(void)
+{
+	acpi_status result;
+
+	if (acpi_disabled)
+		return -ENODEV;
+
+	INIT_LIST_HEAD(&wmi_blocks.list);
+
+	result = acpi_bus_register_driver(&acpi_wmi_driver);
+
+	if (result < 0) {
+		printk(KERN_INFO PREFIX "Error loading mapper\n");
+	} else {
+		printk(KERN_INFO PREFIX "Mapper loaded\n");
+	}
+
+	return result;
+}
+
+static void __exit acpi_wmi_exit(void)
+{
+	struct list_head *p, *tmp;
+	struct wmi_block *wblock;
+
+	acpi_bus_unregister_driver(&acpi_wmi_driver);
+
+	list_for_each_safe(p, tmp, &wmi_blocks.list) {
+		wblock = list_entry(p, struct wmi_block, list);
+
+		list_del(p);
+		kfree(wblock);
+	}
+
+	printk(KERN_INFO PREFIX "Mapper unloaded\n");
+}
+
+subsys_initcall(acpi_wmi_init);
+module_exit(acpi_wmi_exit);

drivers/cpuidle/Kconfig

@@ -1,13 +1,13 @@
 
 config CPU_IDLE
 	bool "CPU idle PM support"
+	default ACPI
 	help
 	  CPU idle is a generic framework for supporting software-controlled
 	  idle processor power management.  It includes modular cross-platform
 	  governors that can be swapped during runtime.
 
-	  If you're using a mobile platform that supports CPU idle PM (e.g.
+	  If you're using an ACPI-enabled platform, you should say Y here.
-	  an ACPI-capable notebook), you should say Y here.
 
 config CPU_IDLE_GOV_LADDER
 	bool

drivers/cpuidle/cpuidle.c

@@ -15,6 +15,7 @@
 #include <linux/pm_qos_params.h>
 #include <linux/cpu.h>
 #include <linux/cpuidle.h>
+#include <linux/ktime.h>
 
 #include "cpuidle.h"
 
@@ -180,6 +181,44 @@ void cpuidle_disable_device(struct cpuidle_device *dev)
 
 EXPORT_SYMBOL_GPL(cpuidle_disable_device);
 
+#ifdef CONFIG_ARCH_HAS_CPU_RELAX
+static int poll_idle(struct cpuidle_device *dev, struct cpuidle_state *st)
+{
+	ktime_t	t1, t2;
+	s64 diff;
+	int ret;
+
+	t1 = ktime_get();
+	local_irq_enable();
+	while (!need_resched())
+		cpu_relax();
+
+	t2 = ktime_get();
+	diff = ktime_to_us(ktime_sub(t2, t1));
+	if (diff > INT_MAX)
+		diff = INT_MAX;
+
+	ret = (int) diff;
+	return ret;
+}
+
+static void poll_idle_init(struct cpuidle_device *dev)
+{
+	struct cpuidle_state *state = &dev->states[0];
+
+	cpuidle_set_statedata(state, NULL);
+
+	snprintf(state->name, CPUIDLE_NAME_LEN, "C0 (poll idle)");
+	state->exit_latency = 0;
+	state->target_residency = 0;
+	state->power_usage = -1;
+	state->flags = CPUIDLE_FLAG_POLL | CPUIDLE_FLAG_TIME_VALID;
+	state->enter = poll_idle;
+}
+#else
+static void poll_idle_init(struct cpuidle_device *dev) {}
+#endif /* CONFIG_ARCH_HAS_CPU_RELAX */
+
 /**
  * cpuidle_register_device - registers a CPU's idle PM feature
  * @dev: the cpu
@@ -198,6 +237,8 @@ int cpuidle_register_device(struct cpuidle_device *dev)
 
 	mutex_lock(&cpuidle_lock);
 
+	poll_idle_init(dev);
+
 	per_cpu(cpuidle_devices, dev->cpu) = dev;
 	list_add(&dev->device_list, &cpuidle_detected_devices);
 	if ((ret = cpuidle_add_sysfs(sys_dev))) {

drivers/firmware/dmi_scan.c

@@ -489,12 +489,3 @@ int dmi_get_year(int field)
 
 	return year;
 }
-
-/**
- *	dmi_get_slot - return dmi_ident[slot]
- *	@slot:	index into dmi_ident[]
- */
-char *dmi_get_slot(int slot)
-{
-	return(dmi_ident[slot]);
-}

drivers/misc/Kconfig

@@ -92,6 +92,22 @@ config TIFM_7XX1
           To compile this driver as a module, choose M here: the module will
 	  be called tifm_7xx1.
 
+config ACER_WMI
+        tristate "Acer WMI Laptop Extras (EXPERIMENTAL)"
+	depends on X86
+	depends on EXPERIMENTAL
+	depends on ACPI
+	depends on ACPI_WMI
+	depends on LEDS_CLASS
+	depends on BACKLIGHT_CLASS_DEVICE
+	---help---
+	  This is a driver for newer Acer (and Wistron) laptops. It adds
+	  wireless radio and bluetooth control, and on some laptops,
+	  exposes the mail LED and LCD backlight.
+
+	  If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
+	  here.
+
 config ASUS_LAPTOP
         tristate "Asus Laptop Extras (EXPERIMENTAL)"
         depends on X86
@@ -126,6 +142,15 @@ config FUJITSU_LAPTOP
 
 	  If you have a Fujitsu laptop, say Y or M here.
 
+config TC1100_WMI
+	tristate "HP Compaq TC1100 Tablet WMI Extras"
+	depends on X86 && !X86_64
+	depends on ACPI
+	depends on ACPI_WMI
+	---help---
+	  This is a driver for the WMI extensions (wireless and bluetooth power
+	  control) of the HP Compaq TC1100 tablet.
+
 config MSI_LAPTOP
         tristate "MSI Laptop Extras"
         depends on X86
@@ -219,6 +244,25 @@ config THINKPAD_ACPI_BAY
 
 	  If you are not sure, say Y here.
 
+config THINKPAD_ACPI_HOTKEY_POLL
+	bool "Suport NVRAM polling for hot keys"
+	depends on THINKPAD_ACPI
+	default y
+	---help---
+	  Some thinkpad models benefit from NVRAM polling to detect a few of
+	  the hot key press events.  If you know your ThinkPad model does not
+	  need to do NVRAM polling to support any of the hot keys you use,
+	  unselecting this option will save about 1kB of memory.
+
+	  ThinkPads T40 and newer, R52 and newer, and X31 and newer are
+	  unlikely to need NVRAM polling in their latest BIOS versions.
+
+	  NVRAM polling can detect at most the following keys: ThinkPad/Access
+	  IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
+	  Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).
+
+	  If you are not sure, say Y here.  The driver enables polling only if
+	  it is strictly necessary to do so.
 
 config ATMEL_SSC
 	tristate "Device driver for Atmel SSC peripheral"
@@ -232,4 +276,13 @@ config ATMEL_SSC
 
 	  If unsure, say N.
 
+config INTEL_MENLOW
+	tristate "Thermal Management driver for Intel menlow platform"
+	depends on ACPI_THERMAL
+	---help---
+	  ACPI thermal management enhancement driver on
+	  Intel Menlow platform.
+
+	  If unsure, say N.
+
 endif # MISC_DEVICES

drivers/misc/Makefile

@@ -6,8 +6,10 @@ obj- := misc.o	# Dummy rule to force built-in.o to be made
 obj-$(CONFIG_IBM_ASM)		+= ibmasm/
 obj-$(CONFIG_HDPU_FEATURES)	+= hdpuftrs/
 obj-$(CONFIG_MSI_LAPTOP)     += msi-laptop.o
+obj-$(CONFIG_ACER_WMI)     += acer-wmi.o
 obj-$(CONFIG_ASUS_LAPTOP)     += asus-laptop.o
 obj-$(CONFIG_ATMEL_SSC)		+= atmel-ssc.o
+obj-$(CONFIG_TC1100_WMI)	+= tc1100-wmi.o
 obj-$(CONFIG_LKDTM)		+= lkdtm.o
 obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o
 obj-$(CONFIG_TIFM_7XX1)       	+= tifm_7xx1.o
@@ -17,3 +19,4 @@ obj-$(CONFIG_SONY_LAPTOP)	+= sony-laptop.o
 obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
 obj-$(CONFIG_FUJITSU_LAPTOP)	+= fujitsu-laptop.o
 obj-$(CONFIG_EEPROM_93CX6)	+= eeprom_93cx6.o
+obj-$(CONFIG_INTEL_MENLOW)	+= intel_menlow.o

drivers/misc/asus-laptop.c

@@ -254,7 +254,7 @@ ASUS_LED(gled, "gaming");
  * method is searched within the scope of the handle, can be NULL. The output
  * of the method is written is output, which can also be NULL
  *
- * returns 1 if write is successful, 0 else.
+ * returns 0 if write is successful, -1 else.
  */
 static int write_acpi_int(acpi_handle handle, const char *method, int val,
 			  struct acpi_buffer *output)
@@ -263,13 +263,19 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
 	union acpi_object in_obj;	//the only param we use
 	acpi_status status;
 
+	if (!handle)
+		return 0;
+
 	params.count = 1;
 	params.pointer = &in_obj;
 	in_obj.type = ACPI_TYPE_INTEGER;
 	in_obj.integer.value = val;
 
 	status = acpi_evaluate_object(handle, (char *)method, &params, output);
-	return (status == AE_OK);
+	if (status == AE_OK)
+		return 0;
+	else
+		return -1;
 }
 
 static int read_wireless_status(int mask)
@@ -321,7 +327,7 @@ static void write_status(acpi_handle handle, int out, int mask)
 
 	switch (mask) {
 	case MLED_ON:
-		out = !out & 0x1;
+		out = !(out & 0x1);
 		break;
 	case GLED_ON:
 		out = (out & 0x1) + 1;
@@ -335,7 +341,7 @@ static void write_status(acpi_handle handle, int out, int mask)
 		break;
 	}
 
-	if (handle && !write_acpi_int(handle, NULL, out, NULL))
+	if (write_acpi_int(handle, NULL, out, NULL))
 		printk(ASUS_WARNING " write failed %x\n", mask);
 }
 
@@ -415,7 +421,7 @@ static int set_brightness(struct backlight_device *bd, int value)
 	value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
 	/* 0 <= value <= 15 */
 
-	if (!write_acpi_int(brightness_set_handle, NULL, value, NULL)) {
+	if (write_acpi_int(brightness_set_handle, NULL, value, NULL)) {
 		printk(ASUS_WARNING "Error changing brightness\n");
 		ret = -EIO;
 	}
@@ -545,7 +551,7 @@ static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
 
 	rv = parse_arg(buf, count, &value);
 	if (rv > 0) {
-		if (!write_acpi_int(ledd_set_handle, NULL, value, NULL))
+		if (write_acpi_int(ledd_set_handle, NULL, value, NULL))
 			printk(ASUS_WARNING "LED display write failed\n");
 		else
 			hotk->ledd_status = (u32) value;
@@ -590,7 +596,7 @@ static ssize_t store_bluetooth(struct device *dev,
 static void set_display(int value)
 {
 	/* no sanity check needed for now */
-	if (!write_acpi_int(display_set_handle, NULL, value, NULL))
+	if (write_acpi_int(display_set_handle, NULL, value, NULL))
 		printk(ASUS_WARNING "Error setting display\n");
 	return;
 }
@@ -647,7 +653,7 @@ static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
  */
 static void set_light_sens_switch(int value)
 {
-	if (!write_acpi_int(ls_switch_handle, NULL, value, NULL))
+	if (write_acpi_int(ls_switch_handle, NULL, value, NULL))
 		printk(ASUS_WARNING "Error setting light sensor switch\n");
 	hotk->light_switch = value;
 }
@@ -672,7 +678,7 @@ static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
 
 static void set_light_sens_level(int value)
 {
-	if (!write_acpi_int(ls_level_handle, NULL, value, NULL))
+	if (write_acpi_int(ls_level_handle, NULL, value, NULL))
 		printk(ASUS_WARNING "Error setting light sensor level\n");
 	hotk->light_level = value;
 }
@@ -860,7 +866,7 @@ static int asus_hotk_get_info(void)
 		printk(ASUS_WARNING "Couldn't get the DSDT table header\n");
 
 	/* We have to write 0 on init this far for all ASUS models */
-	if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) {
+	if (write_acpi_int(hotk->handle, "INIT", 0, &buffer)) {
 		printk(ASUS_ERR "Hotkey initialization failed\n");
 		return -ENODEV;
 	}

drivers/misc/intel_menlow.c

@@ -0,0 +1,526 @@
+/*
+ *  intel_menlow.c - Intel menlow Driver for thermal management extension
+ *
+ *  Copyright (C) 2008 Intel Corp
+ *  Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com>
+ *  Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com>
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  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 of the License.
+ *
+ *  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.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This driver creates the sys I/F for programming the sensors.
+ *  It also implements the driver for intel menlow memory controller (hardware
+ *  id is INT0002) which makes use of the platform specific ACPI methods
+ *  to get/set bandwidth.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+
+#include <linux/thermal.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+MODULE_AUTHOR("Thomas Sujith");
+MODULE_AUTHOR("Zhang Rui");
+MODULE_DESCRIPTION("Intel Menlow platform specific driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * Memory controller device control
+ */
+
+#define MEMORY_GET_BANDWIDTH "GTHS"
+#define MEMORY_SET_BANDWIDTH "STHS"
+#define MEMORY_ARG_CUR_BANDWIDTH 1
+#define MEMORY_ARG_MAX_BANDWIDTH 0
+
+static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
+					unsigned long *max_state)
+{
+	struct acpi_device *device = cdev->devdata;
+	acpi_handle handle = device->handle;
+	unsigned long value;
+	struct acpi_object_list arg_list;
+	union acpi_object arg;
+	acpi_status status = AE_OK;
+
+	arg_list.count = 1;
+	arg_list.pointer = &arg;
+	arg.type = ACPI_TYPE_INTEGER;
+	arg.integer.value = MEMORY_ARG_MAX_BANDWIDTH;
+	status = acpi_evaluate_integer(handle, MEMORY_GET_BANDWIDTH,
+				       &arg_list, &value);
+	if (ACPI_FAILURE(status))
+		return -EFAULT;
+
+	*max_state = value - 1;
+	return 0;
+}
+
+static int memory_get_max_bandwidth(struct thermal_cooling_device *cdev,
+				    char *buf)
+{
+	unsigned long value;
+	if (memory_get_int_max_bandwidth(cdev, &value))
+		return -EINVAL;
+
+	return sprintf(buf, "%ld\n", value);
+}
+
+static int memory_get_cur_bandwidth(struct thermal_cooling_device *cdev,
+				    char *buf)
+{
+	struct acpi_device *device = cdev->devdata;
+	acpi_handle handle = device->handle;
+	unsigned long value;
+	struct acpi_object_list arg_list;
+	union acpi_object arg;
+	acpi_status status = AE_OK;
+
+	arg_list.count = 1;
+	arg_list.pointer = &arg;
+	arg.type = ACPI_TYPE_INTEGER;
+	arg.integer.value = MEMORY_ARG_CUR_BANDWIDTH;
+	status = acpi_evaluate_integer(handle, MEMORY_GET_BANDWIDTH,
+				       &arg_list, &value);
+	if (ACPI_FAILURE(status))
+		return -EFAULT;
+
+	return sprintf(buf, "%ld\n", value);
+}
+
+static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
+				    unsigned int state)
+{
+	struct acpi_device *device = cdev->devdata;
+	acpi_handle handle = device->handle;
+	struct acpi_object_list arg_list;
+	union acpi_object arg;
+	acpi_status status;
+	int temp;
+	unsigned long max_state;
+
+	if (memory_get_int_max_bandwidth(cdev, &max_state))
+		return -EFAULT;
+
+	if (max_state < 0 || state > max_state)
+		return -EINVAL;
+
+	arg_list.count = 1;
+	arg_list.pointer = &arg;
+	arg.type = ACPI_TYPE_INTEGER;
+	arg.integer.value = state;
+
+	status =
+	    acpi_evaluate_integer(handle, MEMORY_SET_BANDWIDTH, &arg_list,
+				  (unsigned long *)&temp);
+
+	printk(KERN_INFO
+	       "Bandwidth value was %d: status is %d\n", state, status);
+	if (ACPI_FAILURE(status))
+		return -EFAULT;
+
+	return 0;
+}
+
+static struct thermal_cooling_device_ops memory_cooling_ops = {
+	.get_max_state = memory_get_max_bandwidth,
+	.get_cur_state = memory_get_cur_bandwidth,
+	.set_cur_state = memory_set_cur_bandwidth,
+};
+
+/*
+ * Memory Device Management
+ */
+static int intel_menlow_memory_add(struct acpi_device *device)
+{
+	int result = -ENODEV;
+	acpi_status status = AE_OK;
+	acpi_handle dummy;
+	struct thermal_cooling_device *cdev;
+
+	if (!device)
+		return -EINVAL;
+
+	status = acpi_get_handle(device->handle, MEMORY_GET_BANDWIDTH, &dummy);
+	if (ACPI_FAILURE(status))
+		goto end;
+
+	status = acpi_get_handle(device->handle, MEMORY_SET_BANDWIDTH, &dummy);
+	if (ACPI_FAILURE(status))
+		goto end;
+
+	cdev = thermal_cooling_device_register("Memory controller", device,
+					       &memory_cooling_ops);
+	acpi_driver_data(device) = cdev;
+	if (!cdev)
+		result = -ENODEV;
+	else {
+		result = sysfs_create_link(&device->dev.kobj,
+					&cdev->device.kobj, "thermal_cooling");
+		if (result)
+			goto unregister;
+
+		result = sysfs_create_link(&cdev->device.kobj,
+					&device->dev.kobj, "device");
+		if (result) {
+			sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+			goto unregister;
+		}
+	}
+
+ end:
+	return result;
+
+ unregister:
+	thermal_cooling_device_unregister(cdev);
+	return result;
+
+}
+
+static int intel_menlow_memory_remove(struct acpi_device *device, int type)
+{
+	struct thermal_cooling_device *cdev = acpi_driver_data(device);
+
+	if (!device || !cdev)
+		return -EINVAL;
+
+	sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+	sysfs_remove_link(&cdev->device.kobj, "device");
+	thermal_cooling_device_unregister(cdev);
+
+	return 0;
+}
+
+const static struct acpi_device_id intel_menlow_memory_ids[] = {
+	{"INT0002", 0},
+	{"", 0},
+};
+
+static struct acpi_driver intel_menlow_memory_driver = {
+	.name = "intel_menlow_thermal_control",
+	.ids = intel_menlow_memory_ids,
+	.ops = {
+		.add = intel_menlow_memory_add,
+		.remove = intel_menlow_memory_remove,
+		},
+};
+
+/*
+ * Sensor control on menlow platform
+ */
+
+#define THERMAL_AUX0 0
+#define THERMAL_AUX1 1
+#define GET_AUX0 "GAX0"
+#define GET_AUX1 "GAX1"
+#define SET_AUX0 "SAX0"
+#define SET_AUX1 "SAX1"
+
+struct intel_menlow_attribute {
+	struct device_attribute attr;
+	struct device *device;
+	acpi_handle handle;
+	struct list_head node;
+};
+
+static LIST_HEAD(intel_menlow_attr_list);
+static DEFINE_MUTEX(intel_menlow_attr_lock);
+
+/*
+ * sensor_get_auxtrip - get the current auxtrip value from sensor
+ * @name: Thermalzone name
+ * @auxtype : AUX0/AUX1
+ * @buf: syfs buffer
+ */
+static int sensor_get_auxtrip(acpi_handle handle, int index, int *value)
+{
+	acpi_status status;
+
+	if ((index != 0 && index != 1) || !value)
+		return -EINVAL;
+
+	status = acpi_evaluate_integer(handle, index ? GET_AUX1 : GET_AUX0,
+				       NULL, (unsigned long *)value);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	return 0;
+}
+
+/*
+ * sensor_set_auxtrip - set the new auxtrip value to sensor
+ * @name: Thermalzone name
+ * @auxtype : AUX0/AUX1
+ * @buf: syfs buffer
+ */
+static int sensor_set_auxtrip(acpi_handle handle, int index, int value)
+{
+	acpi_status status;
+	union acpi_object arg = {
+		ACPI_TYPE_INTEGER
+	};
+	struct acpi_object_list args = {
+		1, &arg
+	};
+	int temp;
+
+	if (index != 0 && index != 1)
+		return -EINVAL;
+
+	status = acpi_evaluate_integer(handle, index ? GET_AUX0 : GET_AUX1,
+				       NULL, (unsigned long *)&temp);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+	if ((index && value < temp) || (!index && value > temp))
+		return -EINVAL;
+
+	arg.integer.value = value;
+	status = acpi_evaluate_integer(handle, index ? SET_AUX1 : SET_AUX0,
+				       &args, (unsigned long *)&temp);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	/* do we need to check the return value of SAX0/SAX1 ? */
+
+	return 0;
+}
+
+#define to_intel_menlow_attr(_attr)	\
+	container_of(_attr, struct intel_menlow_attribute, attr)
+
+static ssize_t aux0_show(struct device *dev,
+			 struct device_attribute *dev_attr, char *buf)
+{
+	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
+	int value;
+	int result;
+
+	result = sensor_get_auxtrip(attr->handle, 0, &value);
+
+	return result ? result : sprintf(buf, "%lu", KELVIN_TO_CELSIUS(value));
+}
+
+static ssize_t aux1_show(struct device *dev,
+			 struct device_attribute *dev_attr, char *buf)
+{
+	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
+	int value;
+	int result;
+
+	result = sensor_get_auxtrip(attr->handle, 1, &value);
+
+	return result ? result : sprintf(buf, "%lu", KELVIN_TO_CELSIUS(value));
+}
+
+static ssize_t aux0_store(struct device *dev,
+			  struct device_attribute *dev_attr,
+			  const char *buf, size_t count)
+{
+	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
+	int value;
+	int result;
+
+	/*Sanity check; should be a positive integer */
+	if (!sscanf(buf, "%d", &value))
+		return -EINVAL;
+
+	if (value < 0)
+		return -EINVAL;
+
+	result = sensor_set_auxtrip(attr->handle, 0, CELSIUS_TO_KELVIN(value));
+	return result ? result : count;
+}
+
+static ssize_t aux1_store(struct device *dev,
+			  struct device_attribute *dev_attr,
+			  const char *buf, size_t count)
+{
+	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
+	int value;
+	int result;
+
+	/*Sanity check; should be a positive integer */
+	if (!sscanf(buf, "%d", &value))
+		return -EINVAL;
+
+	if (value < 0)
+		return -EINVAL;
+
+	result = sensor_set_auxtrip(attr->handle, 1, CELSIUS_TO_KELVIN(value));
+	return result ? result : count;
+}
+
+/* BIOS can enable/disable the thermal user application in dabney platform */
+#define BIOS_ENABLED "\\_TZ.GSTS"
+static ssize_t bios_enabled_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	acpi_status status;
+	unsigned long bios_enabled;
+
+	status = acpi_evaluate_integer(NULL, BIOS_ENABLED, NULL, &bios_enabled);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	return sprintf(buf, "%s\n", bios_enabled ? "enabled" : "disabled");
+}
+
+static int intel_menlow_add_one_attribute(char *name, int mode, void *show,
+					  void *store, struct device *dev,
+					  acpi_handle handle)
+{
+	struct intel_menlow_attribute *attr;
+	int result;
+
+	attr = kzalloc(sizeof(struct intel_menlow_attribute), GFP_KERNEL);
+	if (!attr)
+		return -ENOMEM;
+
+	attr->attr.attr.name = name;
+	attr->attr.attr.mode = mode;
+	attr->attr.show = show;
+	attr->attr.store = store;
+	attr->device = dev;
+	attr->handle = handle;
+
+	result = device_create_file(dev, &attr->attr);
+	if (result)
+		return result;
+
+	mutex_lock(&intel_menlow_attr_lock);
+	list_add_tail(&attr->node, &intel_menlow_attr_list);
+	mutex_unlock(&intel_menlow_attr_lock);
+
+	return 0;
+}
+
+static acpi_status intel_menlow_register_sensor(acpi_handle handle, u32 lvl,
+						void *context, void **rv)
+{
+	acpi_status status;
+	acpi_handle dummy;
+	struct thermal_zone_device *thermal;
+	int result;
+
+	result = acpi_bus_get_private_data(handle, (void **)&thermal);
+	if (result)
+		return 0;
+
+	/* _TZ must have the AUX0/1 methods */
+	status = acpi_get_handle(handle, GET_AUX0, &dummy);
+	if (ACPI_FAILURE(status))
+		goto not_found;
+
+	status = acpi_get_handle(handle, SET_AUX0, &dummy);
+	if (ACPI_FAILURE(status))
+		goto not_found;
+
+	result = intel_menlow_add_one_attribute("aux0", 0644,
+						aux0_show, aux0_store,
+						&thermal->device, handle);
+	if (result)
+		return AE_ERROR;
+
+	status = acpi_get_handle(handle, GET_AUX1, &dummy);
+	if (ACPI_FAILURE(status))
+		goto not_found;
+
+	status = acpi_get_handle(handle, SET_AUX1, &dummy);
+	if (ACPI_FAILURE(status))
+		goto not_found;
+
+	result = intel_menlow_add_one_attribute("aux1", 0644,
+						aux1_show, aux1_store,
+						&thermal->device, handle);
+	if (result)
+		return AE_ERROR;
+
+	/*
+	 * create the "dabney_enabled" attribute which means the user app
+	 * should be loaded or not
+	 */
+
+	result = intel_menlow_add_one_attribute("bios_enabled", 0444,
+						bios_enabled_show, NULL,
+						&thermal->device, handle);
+	if (result)
+		return AE_ERROR;
+
+ not_found:
+	if (status == AE_NOT_FOUND)
+		return AE_OK;
+	else
+		return status;
+}
+
+static void intel_menlow_unregister_sensor(void)
+{
+	struct intel_menlow_attribute *pos, *next;
+
+	mutex_lock(&intel_menlow_attr_lock);
+	list_for_each_entry_safe(pos, next, &intel_menlow_attr_list, node) {
+		list_del(&pos->node);
+		device_remove_file(pos->device, &pos->attr);
+		kfree(pos);
+	}
+	mutex_unlock(&intel_menlow_attr_lock);
+
+	return;
+}
+
+static int __init intel_menlow_module_init(void)
+{
+	int result = -ENODEV;
+	acpi_status status;
+	unsigned long enable;
+
+	if (acpi_disabled)
+		return result;
+
+	/* Looking for the \_TZ.GSTS method */
+	status = acpi_evaluate_integer(NULL, BIOS_ENABLED, NULL, &enable);
+	if (ACPI_FAILURE(status) || !enable)
+		return -ENODEV;
+
+	/* Looking for ACPI device MEM0 with hardware id INT0002 */
+	result = acpi_bus_register_driver(&intel_menlow_memory_driver);
+	if (result)
+		return result;
+
+	/* Looking for sensors in each ACPI thermal zone */
+	status = acpi_walk_namespace(ACPI_TYPE_THERMAL, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX,
+				     intel_menlow_register_sensor, NULL, NULL);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	return 0;
+}
+
+static void __exit intel_menlow_module_exit(void)
+{
+	acpi_bus_unregister_driver(&intel_menlow_memory_driver);
+	intel_menlow_unregister_sensor();
+}
+
+module_init(intel_menlow_module_init);
+module_exit(intel_menlow_module_exit);

drivers/misc/sony-laptop.c

@@ -73,7 +73,7 @@
 	if (debug) printk(KERN_WARNING DRV_PFX  msg);	\
 } while (0)
 
-#define SONY_LAPTOP_DRIVER_VERSION	"0.5"
+#define SONY_LAPTOP_DRIVER_VERSION	"0.6"
 
 #define SONY_NC_CLASS		"sony-nc"
 #define SONY_NC_HID		"SNY5001"
@@ -146,68 +146,70 @@ struct sony_laptop_keypress {
  * and input layer indexes in the keymap
  */
 static int sony_laptop_input_index[] = {
-	-1,	/* no event */
+	-1,	/*  0 no event */
-	-1,	/* SONYPI_EVENT_JOGDIAL_DOWN */
+	-1,	/*  1 SONYPI_EVENT_JOGDIAL_DOWN */
-	-1,	/* SONYPI_EVENT_JOGDIAL_UP */
+	-1,	/*  2 SONYPI_EVENT_JOGDIAL_UP */
-	-1,	/* SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
+	-1,	/*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
-	-1,	/* SONYPI_EVENT_JOGDIAL_UP_PRESSED */
+	-1,	/*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
-	-1,	/* SONYPI_EVENT_JOGDIAL_PRESSED */
+	-1,	/*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
-	-1,	/* SONYPI_EVENT_JOGDIAL_RELEASED */
+	-1,	/*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
-	 0,	/* SONYPI_EVENT_CAPTURE_PRESSED */
+	 0,	/*  7 SONYPI_EVENT_CAPTURE_PRESSED */
-	 1,	/* SONYPI_EVENT_CAPTURE_RELEASED */
+	 1,	/*  8 SONYPI_EVENT_CAPTURE_RELEASED */
-	 2,	/* SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
+	 2,	/*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
-	 3,	/* SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
+	 3,	/* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
-	 4,	/* SONYPI_EVENT_FNKEY_ESC */
+	 4,	/* 11 SONYPI_EVENT_FNKEY_ESC */
-	 5,	/* SONYPI_EVENT_FNKEY_F1 */
+	 5,	/* 12 SONYPI_EVENT_FNKEY_F1 */
-	 6,	/* SONYPI_EVENT_FNKEY_F2 */
+	 6,	/* 13 SONYPI_EVENT_FNKEY_F2 */
-	 7,	/* SONYPI_EVENT_FNKEY_F3 */
+	 7,	/* 14 SONYPI_EVENT_FNKEY_F3 */
-	 8,	/* SONYPI_EVENT_FNKEY_F4 */
+	 8,	/* 15 SONYPI_EVENT_FNKEY_F4 */
-	 9,	/* SONYPI_EVENT_FNKEY_F5 */
+	 9,	/* 16 SONYPI_EVENT_FNKEY_F5 */
-	10,	/* SONYPI_EVENT_FNKEY_F6 */
+	10,	/* 17 SONYPI_EVENT_FNKEY_F6 */
-	11,	/* SONYPI_EVENT_FNKEY_F7 */
+	11,	/* 18 SONYPI_EVENT_FNKEY_F7 */
-	12,	/* SONYPI_EVENT_FNKEY_F8 */
+	12,	/* 19 SONYPI_EVENT_FNKEY_F8 */
-	13,	/* SONYPI_EVENT_FNKEY_F9 */
+	13,	/* 20 SONYPI_EVENT_FNKEY_F9 */
-	14,	/* SONYPI_EVENT_FNKEY_F10 */
+	14,	/* 21 SONYPI_EVENT_FNKEY_F10 */
-	15,	/* SONYPI_EVENT_FNKEY_F11 */
+	15,	/* 22 SONYPI_EVENT_FNKEY_F11 */
-	16,	/* SONYPI_EVENT_FNKEY_F12 */
+	16,	/* 23 SONYPI_EVENT_FNKEY_F12 */
-	17,	/* SONYPI_EVENT_FNKEY_1 */
+	17,	/* 24 SONYPI_EVENT_FNKEY_1 */
-	18,	/* SONYPI_EVENT_FNKEY_2 */
+	18,	/* 25 SONYPI_EVENT_FNKEY_2 */
-	19,	/* SONYPI_EVENT_FNKEY_D */
+	19,	/* 26 SONYPI_EVENT_FNKEY_D */
-	20,	/* SONYPI_EVENT_FNKEY_E */
+	20,	/* 27 SONYPI_EVENT_FNKEY_E */
-	21,	/* SONYPI_EVENT_FNKEY_F */
+	21,	/* 28 SONYPI_EVENT_FNKEY_F */
-	22,	/* SONYPI_EVENT_FNKEY_S */
+	22,	/* 29 SONYPI_EVENT_FNKEY_S */
-	23,	/* SONYPI_EVENT_FNKEY_B */
+	23,	/* 30 SONYPI_EVENT_FNKEY_B */
-	24,	/* SONYPI_EVENT_BLUETOOTH_PRESSED */
+	24,	/* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
-	25,	/* SONYPI_EVENT_PKEY_P1 */
+	25,	/* 32 SONYPI_EVENT_PKEY_P1 */
-	26,	/* SONYPI_EVENT_PKEY_P2 */
+	26,	/* 33 SONYPI_EVENT_PKEY_P2 */
-	27,	/* SONYPI_EVENT_PKEY_P3 */
+	27,	/* 34 SONYPI_EVENT_PKEY_P3 */
-	28,	/* SONYPI_EVENT_BACK_PRESSED */
+	28,	/* 35 SONYPI_EVENT_BACK_PRESSED */
-	-1,	/* SONYPI_EVENT_LID_CLOSED */
+	-1,	/* 36 SONYPI_EVENT_LID_CLOSED */
-	-1,	/* SONYPI_EVENT_LID_OPENED */
+	-1,	/* 37 SONYPI_EVENT_LID_OPENED */
-	29,	/* SONYPI_EVENT_BLUETOOTH_ON */
+	29,	/* 38 SONYPI_EVENT_BLUETOOTH_ON */
-	30,	/* SONYPI_EVENT_BLUETOOTH_OFF */
+	30,	/* 39 SONYPI_EVENT_BLUETOOTH_OFF */
-	31,	/* SONYPI_EVENT_HELP_PRESSED */
+	31,	/* 40 SONYPI_EVENT_HELP_PRESSED */
-	32,	/* SONYPI_EVENT_FNKEY_ONLY */
+	32,	/* 41 SONYPI_EVENT_FNKEY_ONLY */
-	33,	/* SONYPI_EVENT_JOGDIAL_FAST_DOWN */
+	33,	/* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
-	34,	/* SONYPI_EVENT_JOGDIAL_FAST_UP */
+	34,	/* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
-	35,	/* SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
+	35,	/* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
-	36,	/* SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
+	36,	/* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
-	37,	/* SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
+	37,	/* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
-	38,	/* SONYPI_EVENT_JOGDIAL_VFAST_UP */
+	38,	/* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
-	39,	/* SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
+	39,	/* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
-	40,	/* SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
+	40,	/* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
-	41,	/* SONYPI_EVENT_ZOOM_PRESSED */
+	41,	/* 50 SONYPI_EVENT_ZOOM_PRESSED */
-	42,	/* SONYPI_EVENT_THUMBPHRASE_PRESSED */
+	42,	/* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
-	43,	/* SONYPI_EVENT_MEYE_FACE */
+	43,	/* 52 SONYPI_EVENT_MEYE_FACE */
-	44,	/* SONYPI_EVENT_MEYE_OPPOSITE */
+	44,	/* 53 SONYPI_EVENT_MEYE_OPPOSITE */
-	45,	/* SONYPI_EVENT_MEMORYSTICK_INSERT */
+	45,	/* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
-	46,	/* SONYPI_EVENT_MEMORYSTICK_EJECT */
+	46,	/* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
-	-1,	/* SONYPI_EVENT_ANYBUTTON_RELEASED */
+	-1,	/* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
-	-1,	/* SONYPI_EVENT_BATTERY_INSERT */
+	-1,	/* 57 SONYPI_EVENT_BATTERY_INSERT */
-	-1,	/* SONYPI_EVENT_BATTERY_REMOVE */
+	-1,	/* 58 SONYPI_EVENT_BATTERY_REMOVE */
-	-1,	/* SONYPI_EVENT_FNKEY_RELEASED */
+	-1,	/* 59 SONYPI_EVENT_FNKEY_RELEASED */
-	47,	/* SONYPI_EVENT_WIRELESS_ON */
+	47,	/* 60 SONYPI_EVENT_WIRELESS_ON */
-	48,	/* SONYPI_EVENT_WIRELESS_OFF */
+	48,	/* 61 SONYPI_EVENT_WIRELESS_OFF */
+	49,	/* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
+	50,	/* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 };
 
 static int sony_laptop_input_keycode_map[] = {
@@ -260,6 +262,8 @@ static int sony_laptop_input_keycode_map[] = {
 	KEY_RESERVED,	/* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 	KEY_WLAN,	/* 47 SONYPI_EVENT_WIRELESS_ON */
 	KEY_WLAN,	/* 48 SONYPI_EVENT_WIRELESS_OFF */
+	KEY_ZOOMIN,	/* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
+	KEY_ZOOMOUT	/* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 };
 
 /* release buttons after a short delay if pressed */
@@ -311,7 +315,7 @@ static void sony_laptop_report_input_event(u8 event)
 		break;
 
 	default:
-		if (event > ARRAY_SIZE (sony_laptop_input_keycode_map)) {
+		if (event > ARRAY_SIZE(sony_laptop_input_index)) {
 			dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 			break;
 		}
@@ -875,6 +879,15 @@ static const struct dmi_system_id sony_nc_ids[] = {
 				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 			},
 		},
+		{
+			.ident = "Sony Vaio N Series",
+			.callback = sony_nc_C_enable,
+			.driver_data = sony_C_events,
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
+			},
+		},
 		{ }
 };
 
@@ -1169,10 +1182,12 @@ static struct acpi_driver sony_nc_driver = {
 #define SONYPI_DEVICE_TYPE1	0x00000001
 #define SONYPI_DEVICE_TYPE2	0x00000002
 #define SONYPI_DEVICE_TYPE3	0x00000004
+#define SONYPI_DEVICE_TYPE4	0x00000008
 
 #define SONYPI_TYPE1_OFFSET	0x04
 #define SONYPI_TYPE2_OFFSET	0x12
 #define SONYPI_TYPE3_OFFSET	0x12
+#define SONYPI_TYPE4_OFFSET	0x12
 
 struct sony_pic_ioport {
 	struct acpi_resource_io	io1;
@@ -1185,18 +1200,33 @@ struct sony_pic_irq {
 	struct list_head		list;
 };
 
+struct sonypi_eventtypes {
+	u8			data;
+	unsigned long		mask;
+	struct sonypi_event	*events;
+};
+
+struct device_ctrl {
+	int				model;
+	int				(*handle_irq)(const u8, const u8);
+	u16				evport_offset;
+	u8				has_camera;
+	u8				has_bluetooth;
+	u8				has_wwan;
+	struct sonypi_eventtypes	*event_types;
+};
+
 struct sony_pic_dev {
-	int			model;
+	struct device_ctrl	*control;
-	u16			evport_offset;
-	u8			camera_power;
-	u8			bluetooth_power;
-	u8			wwan_power;
 	struct acpi_device	*acpi_dev;
 	struct sony_pic_irq	*cur_irq;
 	struct sony_pic_ioport	*cur_ioport;
 	struct list_head	interrupts;
 	struct list_head	ioports;
 	struct mutex		lock;
+	u8			camera_power;
+	u8			bluetooth_power;
+	u8			wwan_power;
 };
 
 static struct sony_pic_dev spic_dev = {
@@ -1253,6 +1283,7 @@ static struct sonypi_event sonypi_joggerev[] = {
 static struct sonypi_event sonypi_captureev[] = {
 	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
 	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
+	{ 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
 	{ 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
 	{ 0, 0 }
 };
@@ -1289,7 +1320,6 @@ static struct sonypi_event sonypi_pkeyev[] = {
 	{ 0x01, SONYPI_EVENT_PKEY_P1 },
 	{ 0x02, SONYPI_EVENT_PKEY_P2 },
 	{ 0x04, SONYPI_EVENT_PKEY_P3 },
-	{ 0x5c, SONYPI_EVENT_PKEY_P1 },
 	{ 0, 0 }
 };
 
@@ -1331,6 +1361,8 @@ static struct sonypi_event sonypi_lidev[] = {
 /* The set of possible zoom events */
 static struct sonypi_event sonypi_zoomev[] = {
 	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
+	{ 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
+	{ 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
 	{ 0, 0 }
 };
 
@@ -1361,76 +1393,58 @@ static struct sonypi_event sonypi_batteryev[] = {
 	{ 0, 0 }
 };
 
-static struct sonypi_eventtypes {
+static struct sonypi_eventtypes type1_events[] = {
-	int			model;
+	{ 0, 0xffffffff, sonypi_releaseev },
-	u8			data;
+	{ 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
-	unsigned long		mask;
+	{ 0x30, SONYPI_LID_MASK, sonypi_lidev },
-	struct sonypi_event *	events;
+	{ 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
-} sony_pic_eventtypes[] = {
+	{ 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
-	{ SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
+	{ 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
-	{ SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
+	{ 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
-	{ SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
+	{ 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
-	{ SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
+	{ 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
-	{ SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
+	{ 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
-	{ SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+	{ 0 },
-	{ SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
+};
-	{ SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
+static struct sonypi_eventtypes type2_events[] = {
-	{ SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+	{ 0, 0xffffffff, sonypi_releaseev },
-	{ SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
+	{ 0x38, SONYPI_LID_MASK, sonypi_lidev },
-
+	{ 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
-	{ SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
+	{ 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
-	{ SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
+	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
-	{ SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
+	{ 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
-	{ SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
+	{ 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
-	{ SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+	{ 0x11, SONYPI_BACK_MASK, sonypi_backev },
-	{ SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
+	{ 0x21, SONYPI_HELP_MASK, sonypi_helpev },
-	{ SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
+	{ 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
-	{ SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
+	{ 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
-	{ SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
+	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
-	{ SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
+	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
-	{ SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
+	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
-	{ SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+	{ 0 },
-	{ SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
+};
-	{ SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
+static struct sonypi_eventtypes type3_events[] = {
-
+	{ 0, 0xffffffff, sonypi_releaseev },
-	{ SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
+	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
-	{ SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+	{ 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
-	{ SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
+	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
-	{ SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
-	{ SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
+	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
-	{ SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
+	{ 0 },
-	{ 0 }
+};
+static struct sonypi_eventtypes type4_events[] = {
+	{ 0, 0xffffffff, sonypi_releaseev },
+	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+	{ 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
+	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
+	{ 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
+	{ 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
+	{ 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
+	{ 0 },
 };
 
-static int sony_pic_detect_device_type(void)
+/* low level spic calls */
-{
-	struct pci_dev *pcidev;
-	int model = 0;
-
-	if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
-				     PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
-		model = SONYPI_DEVICE_TYPE1;
-
-	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
-					  PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
-		model = SONYPI_DEVICE_TYPE3;
-
-	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
-					  PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
-		model = SONYPI_DEVICE_TYPE3;
-
-	else
-		model = SONYPI_DEVICE_TYPE2;
-
-	if (pcidev)
-		pci_dev_put(pcidev);
-
-	printk(KERN_INFO DRV_PFX "detected Type%d model\n",
-			model == SONYPI_DEVICE_TYPE1 ? 1 :
-			model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
-	return model;
-}
-
 #define ITERATIONS_LONG		10000
 #define ITERATIONS_SHORT	10
 #define wait_on_command(command, iterations) {				\
@@ -1451,7 +1465,7 @@ static u8 sony_pic_call1(u8 dev)
 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
 	v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
-	dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
+	dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
 	return v2;
 }
 
@@ -1466,7 +1480,7 @@ static u8 sony_pic_call2(u8 dev, u8 fn)
 			ITERATIONS_LONG);
 	outb(fn, spic_dev.cur_ioport->io1.minimum);
 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
-	dprintk("sony_pic_call2: 0x%.4x\n", v1);
+	dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
 	return v1;
 }
 
@@ -1481,10 +1495,105 @@ static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
 	outb(v, spic_dev.cur_ioport->io1.minimum);
 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
-	dprintk("sony_pic_call3: 0x%.4x\n", v1);
+	dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
+			dev, fn, v, v1);
 	return v1;
 }
 
+/*
+ * minidrivers for SPIC models
+ */
+static int type4_handle_irq(const u8 data_mask, const u8 ev)
+{
+	/*
+	 * 0x31 could mean we have to take some extra action and wait for
+	 * the next irq for some Type4 models, it will generate a new
+	 * irq and we can read new data from the device:
+	 *  - 0x5c and 0x5f requires 0xA0
+	 *  - 0x61 requires 0xB3
+	 */
+	if (data_mask == 0x31) {
+		if (ev == 0x5c || ev == 0x5f)
+			sony_pic_call1(0xA0);
+		else if (ev == 0x61)
+			sony_pic_call1(0xB3);
+		return 0;
+	}
+	return 1;
+}
+
+static struct device_ctrl spic_types[] = {
+	{
+		.model = SONYPI_DEVICE_TYPE1,
+		.handle_irq = NULL,
+		.evport_offset = SONYPI_TYPE1_OFFSET,
+		.event_types = type1_events,
+	},
+	{
+		.model = SONYPI_DEVICE_TYPE2,
+		.handle_irq = NULL,
+		.evport_offset = SONYPI_TYPE2_OFFSET,
+		.event_types = type2_events,
+	},
+	{
+		.model = SONYPI_DEVICE_TYPE3,
+		.handle_irq = NULL,
+		.evport_offset = SONYPI_TYPE3_OFFSET,
+		.event_types = type3_events,
+	},
+	{
+		.model = SONYPI_DEVICE_TYPE4,
+		.handle_irq = type4_handle_irq,
+		.evport_offset = SONYPI_TYPE4_OFFSET,
+		.event_types = type4_events,
+	},
+};
+
+static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
+{
+	struct pci_dev *pcidev;
+
+	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+			PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
+	if (pcidev) {
+		dev->control = &spic_types[0];
+		goto out;
+	}
+
+	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+			PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
+	if (pcidev) {
+		dev->control = &spic_types[2];
+		goto out;
+	}
+
+	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+			PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
+	if (pcidev) {
+		dev->control = &spic_types[3];
+		goto out;
+	}
+
+	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+			PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
+	if (pcidev) {
+		dev->control = &spic_types[3];
+		goto out;
+	}
+
+	/* default */
+	dev->control = &spic_types[1];
+
+out:
+	if (pcidev)
+		pci_dev_put(pcidev);
+
+	printk(KERN_INFO DRV_PFX "detected Type%d model\n",
+			dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
+			dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
+			dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
+}
+
 /* camera tests and poweron/poweroff */
 #define SONYPI_CAMERA_PICTURE		5
 #define SONYPI_CAMERA_CONTROL		0x10
@@ -2253,7 +2362,7 @@ static int sony_pic_enable(struct acpi_device *device,
 	buffer.pointer = resource;
 
 	/* setup Type 1 resources */
-	if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
+	if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
 
 		/* setup io resources */
 		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
@@ -2335,39 +2444,49 @@ static irqreturn_t sony_pic_irq(int irq, void *dev_id)
 	if (dev->cur_ioport->io2.minimum)
 		data_mask = inb_p(dev->cur_ioport->io2.minimum);
 	else
-		data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->evport_offset);
+		data_mask = inb_p(dev->cur_ioport->io1.minimum +
+				dev->control->evport_offset);
 
 	dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
-			ev, data_mask, dev->cur_ioport->io1.minimum, dev->evport_offset);
+			ev, data_mask, dev->cur_ioport->io1.minimum,
+			dev->control->evport_offset);
 
 	if (ev == 0x00 || ev == 0xff)
 		return IRQ_HANDLED;
 
-	for (i = 0; sony_pic_eventtypes[i].model; i++) {
+	for (i = 0; dev->control->event_types[i].mask; i++) {
 
-		if (spic_dev.model != sony_pic_eventtypes[i].model)
+		if ((data_mask & dev->control->event_types[i].data) !=
+		    dev->control->event_types[i].data)
 			continue;
 
-		if ((data_mask & sony_pic_eventtypes[i].data) !=
+		if (!(mask & dev->control->event_types[i].mask))
-		    sony_pic_eventtypes[i].data)
 			continue;
 
-		if (!(mask & sony_pic_eventtypes[i].mask))
+		for (j = 0; dev->control->event_types[i].events[j].event; j++) {
-			continue;
+			if (ev == dev->control->event_types[i].events[j].data) {
-
-		for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
-			if (ev == sony_pic_eventtypes[i].events[j].data) {
 				device_event =
-					sony_pic_eventtypes[i].events[j].event;
+					dev->control->
+						event_types[i].events[j].event;
 				goto found;
 			}
 		}
 	}
+	/* Still not able to decode the event try to pass
+	 * it over to the minidriver
+	 */
+	if (dev->control->handle_irq &&
+			dev->control->handle_irq(data_mask, ev) == 0)
+		return IRQ_HANDLED;
+
+	dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
+			ev, data_mask, dev->cur_ioport->io1.minimum,
+			dev->control->evport_offset);
 	return IRQ_HANDLED;
 
 found:
 	sony_laptop_report_input_event(device_event);
-	acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
+	acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
 	sonypi_compat_report_event(device_event);
 
 	return IRQ_HANDLED;
@@ -2429,23 +2548,9 @@ static int sony_pic_add(struct acpi_device *device)
 
 	spic_dev.acpi_dev = device;
 	strcpy(acpi_device_class(device), "sony/hotkey");
-	spic_dev.model = sony_pic_detect_device_type();
+	sony_pic_detect_device_type(&spic_dev);
 	mutex_init(&spic_dev.lock);
 
-	/* model specific characteristics */
-	switch(spic_dev.model) {
-		case SONYPI_DEVICE_TYPE1:
-			spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
-			break;
-		case SONYPI_DEVICE_TYPE3:
-			spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
-			break;
-		case SONYPI_DEVICE_TYPE2:
-		default:
-			spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
-			break;
-	}
-
 	/* read _PRS resources */
 	result = sony_pic_possible_resources(device);
 	if (result) {

drivers/misc/tc1100-wmi.c

@@ -0,0 +1,290 @@
+/*
+ *  HP Compaq TC1100 Tablet WMI Extras Driver
+ *
+ *  Copyright (C) 2007 Carlos Corbacho <carlos@strangeworlds.co.uk>
+ *  Copyright (C) 2004 Jamey Hicks <jamey.hicks@hp.com>
+ *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or (at
+ *  your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <acpi/acpi.h>
+#include <acpi/actypes.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/platform_device.h>
+
+#define GUID "C364AC71-36DB-495A-8494-B439D472A505"
+
+#define TC1100_INSTANCE_WIRELESS		1
+#define TC1100_INSTANCE_JOGDIAL		2
+
+#define TC1100_LOGPREFIX "tc1100-wmi: "
+#define TC1100_INFO KERN_INFO TC1100_LOGPREFIX
+
+MODULE_AUTHOR("Jamey Hicks, Carlos Corbacho");
+MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("wmi:C364AC71-36DB-495A-8494-B439D472A505");
+
+static int tc1100_probe(struct platform_device *device);
+static int tc1100_remove(struct platform_device *device);
+static int tc1100_suspend(struct platform_device *device, pm_message_t state);
+static int tc1100_resume(struct platform_device *device);
+
+static struct platform_driver tc1100_driver = {
+	.driver = {
+		.name = "tc1100-wmi",
+		.owner = THIS_MODULE,
+	},
+	.probe = tc1100_probe,
+	.remove = tc1100_remove,
+	.suspend = tc1100_suspend,
+	.resume = tc1100_resume,
+};
+
+static struct platform_device *tc1100_device;
+
+struct tc1100_data {
+	u32 wireless;
+	u32 jogdial;
+};
+
+static struct tc1100_data suspend_data;
+
+/* --------------------------------------------------------------------------
+				Device Management
+   -------------------------------------------------------------------------- */
+
+static int get_state(u32 *out, u8 instance)
+{
+	u32 tmp;
+	acpi_status status;
+	struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+
+	if (!out)
+		return -EINVAL;
+
+	if (instance > 2)
+		return -ENODEV;
+
+	status = wmi_query_block(GUID, instance, &result);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	obj = (union acpi_object *) result.pointer;
+	if (obj && obj->type == ACPI_TYPE_BUFFER &&
+		obj->buffer.length == sizeof(u32)) {
+		tmp = *((u32 *) obj->buffer.pointer);
+	} else {
+		tmp = 0;
+	}
+
+	if (result.length > 0 && result.pointer)
+		kfree(result.pointer);
+
+	switch (instance) {
+	case TC1100_INSTANCE_WIRELESS:
+		*out = (tmp == 3) ? 1 : 0;
+		return 0;
+	case TC1100_INSTANCE_JOGDIAL:
+		*out = (tmp == 1) ? 1 : 0;
+		return 0;
+	default:
+		return -ENODEV;
+	}
+}
+
+static int set_state(u32 *in, u8 instance)
+{
+	u32 value;
+	acpi_status status;
+	struct acpi_buffer input;
+
+	if (!in)
+		return -EINVAL;
+
+	if (instance > 2)
+		return -ENODEV;
+
+	switch (instance) {
+	case TC1100_INSTANCE_WIRELESS:
+		value = (*in) ? 1 : 2;
+		break;
+	case TC1100_INSTANCE_JOGDIAL:
+		value = (*in) ? 0 : 1;
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	input.length = sizeof(u32);
+	input.pointer = &value;
+
+	status = wmi_set_block(GUID, instance, &input);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	return 0;
+}
+
+/* --------------------------------------------------------------------------
+				FS Interface (/sys)
+   -------------------------------------------------------------------------- */
+
+/*
+ * Read/ write bool sysfs macro
+ */
+#define show_set_bool(value, instance) \
+static ssize_t \
+show_bool_##value(struct device *dev, struct device_attribute *attr, \
+	char *buf) \
+{ \
+	u32 result; \
+	acpi_status status = get_state(&result, instance); \
+	if (ACPI_SUCCESS(status)) \
+		return sprintf(buf, "%d\n", result); \
+	return sprintf(buf, "Read error\n"); \
+} \
+\
+static ssize_t \
+set_bool_##value(struct device *dev, struct device_attribute *attr, \
+	const char *buf, size_t count) \
+{ \
+	u32 tmp = simple_strtoul(buf, NULL, 10); \
+	acpi_status status = set_state(&tmp, instance); \
+		if (ACPI_FAILURE(status)) \
+			return -EINVAL; \
+	return count; \
+} \
+static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
+	show_bool_##value, set_bool_##value);
+
+show_set_bool(wireless, TC1100_INSTANCE_WIRELESS);
+show_set_bool(jogdial, TC1100_INSTANCE_JOGDIAL);
+
+static void remove_fs(void)
+{
+	device_remove_file(&tc1100_device->dev, &dev_attr_wireless);
+	device_remove_file(&tc1100_device->dev, &dev_attr_jogdial);
+}
+
+static int add_fs(void)
+{
+	int ret;
+
+	ret = device_create_file(&tc1100_device->dev, &dev_attr_wireless);
+	if (ret)
+		goto add_sysfs_error;
+
+	ret = device_create_file(&tc1100_device->dev, &dev_attr_jogdial);
+	if (ret)
+		goto add_sysfs_error;
+
+	return ret;
+
+add_sysfs_error:
+	remove_fs();
+	return ret;
+}
+
+/* --------------------------------------------------------------------------
+				Driver Model
+   -------------------------------------------------------------------------- */
+
+static int tc1100_probe(struct platform_device *device)
+{
+	int result = 0;
+
+	result = add_fs();
+	return result;
+}
+
+
+static int tc1100_remove(struct platform_device *device)
+{
+	remove_fs();
+	return 0;
+}
+
+static int tc1100_suspend(struct platform_device *dev, pm_message_t state)
+{
+	int ret;
+
+	ret = get_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
+	if (ret)
+		return ret;
+
+	ret = get_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
+static int tc1100_resume(struct platform_device *dev)
+{
+	int ret;
+
+	ret = set_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
+	if (ret)
+		return ret;
+
+	ret = set_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
+static int __init tc1100_init(void)
+{
+	int result = 0;
+
+	if (!wmi_has_guid(GUID))
+		return -ENODEV;
+
+	result = platform_driver_register(&tc1100_driver);
+	if (result)
+		return result;
+
+	tc1100_device = platform_device_alloc("tc1100-wmi", -1);
+	platform_device_add(tc1100_device);
+
+	printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras loaded\n");
+
+	return result;
+}
+
+static void __exit tc1100_exit(void)
+{
+	platform_device_del(tc1100_device);
+	platform_driver_unregister(&tc1100_driver);
+
+	printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras unloaded\n");
+}
+
+module_init(tc1100_init);
+module_exit(tc1100_exit);

drivers/misc/thinkpad_acpi.h

@@ -1,606 +0,0 @@
-/*
- *  thinkpad_acpi.h - ThinkPad ACPI Extras
- *
- *
- *  Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
- *  Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
- *
- *  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.
- */
-
-#ifndef __THINKPAD_ACPI_H__
-#define __THINKPAD_ACPI_H__
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-
-#include <linux/nvram.h>
-#include <linux/proc_fs.h>
-#include <linux/sysfs.h>
-#include <linux/backlight.h>
-#include <linux/fb.h>
-#include <linux/platform_device.h>
-#include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-#include <linux/input.h>
-#include <asm/uaccess.h>
-
-#include <linux/dmi.h>
-#include <linux/jiffies.h>
-#include <linux/workqueue.h>
-
-#include <acpi/acpi_drivers.h>
-#include <acpi/acnamesp.h>
-
-#include <linux/pci_ids.h>
-
-/****************************************************************************
- * Main driver
- */
-
-#define IBM_NAME "thinkpad"
-#define IBM_DESC "ThinkPad ACPI Extras"
-#define IBM_FILE IBM_NAME "_acpi"
-#define IBM_URL "http://ibm-acpi.sf.net/"
-#define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net"
-
-#define IBM_PROC_DIR "ibm"
-#define IBM_ACPI_EVENT_PREFIX "ibm"
-#define IBM_DRVR_NAME IBM_FILE
-#define IBM_HWMON_DRVR_NAME IBM_NAME "_hwmon"
-
-#define IBM_LOG IBM_FILE ": "
-#define IBM_ERR	   KERN_ERR    IBM_LOG
-#define IBM_NOTICE KERN_NOTICE IBM_LOG
-#define IBM_INFO   KERN_INFO   IBM_LOG
-#define IBM_DEBUG  KERN_DEBUG  IBM_LOG
-
-#define IBM_MAX_ACPI_ARGS 3
-
-/* ThinkPad CMOS commands */
-#define TP_CMOS_VOLUME_DOWN	0
-#define TP_CMOS_VOLUME_UP	1
-#define TP_CMOS_VOLUME_MUTE	2
-#define TP_CMOS_BRIGHTNESS_UP	4
-#define TP_CMOS_BRIGHTNESS_DOWN	5
-
-/* ThinkPad CMOS NVRAM constants */
-#define TP_NVRAM_ADDR_BRIGHTNESS       0x5e
-#define TP_NVRAM_MASK_LEVEL_BRIGHTNESS 0x0f
-#define TP_NVRAM_POS_LEVEL_BRIGHTNESS 0
-
-#define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off")
-#define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
-#define strlencmp(a,b) (strncmp((a), (b), strlen(b)))
-
-/* Debugging */
-#define TPACPI_DBG_ALL		0xffff
-#define TPACPI_DBG_ALL		0xffff
-#define TPACPI_DBG_INIT		0x0001
-#define TPACPI_DBG_EXIT		0x0002
-#define dbg_printk(a_dbg_level, format, arg...) \
-	do { if (dbg_level & a_dbg_level) \
-		printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0)
-#ifdef CONFIG_THINKPAD_ACPI_DEBUG
-#define vdbg_printk(a_dbg_level, format, arg...) \
-	dbg_printk(a_dbg_level, format, ## arg)
-static const char *str_supported(int is_supported);
-#else
-#define vdbg_printk(a_dbg_level, format, arg...)
-#endif
-
-/* Input IDs */
-#define TPACPI_HKEY_INPUT_VENDOR	PCI_VENDOR_ID_IBM
-#define TPACPI_HKEY_INPUT_PRODUCT	0x5054 /* "TP" */
-#define TPACPI_HKEY_INPUT_VERSION	0x4101
-
-/* ACPI HIDs */
-#define IBM_HKEY_HID    "IBM0068"
-
-/* ACPI helpers */
-static int __must_check acpi_evalf(acpi_handle handle,
-		      void *res, char *method, char *fmt, ...);
-static int __must_check acpi_ec_read(int i, u8 * p);
-static int __must_check acpi_ec_write(int i, u8 v);
-static int __must_check _sta(acpi_handle handle);
-
-/* ACPI handles */
-static acpi_handle root_handle;			/* root namespace */
-static acpi_handle ec_handle;			/* EC */
-static acpi_handle ecrd_handle, ecwr_handle;	/* 570 EC access */
-static acpi_handle cmos_handle, hkey_handle;	/* basic thinkpad handles */
-
-static void drv_acpi_handle_init(char *name,
-		   acpi_handle *handle, acpi_handle parent,
-		   char **paths, int num_paths, char **path);
-#define IBM_ACPIHANDLE_INIT(object)						\
-	drv_acpi_handle_init(#object, &object##_handle, *object##_parent,	\
-		object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
-
-/* ThinkPad ACPI helpers */
-static int issue_thinkpad_cmos_command(int cmos_cmd);
-
-/* procfs support */
-static struct proc_dir_entry *proc_dir;
-
-/* procfs helpers */
-static int dispatch_procfs_read(char *page, char **start, off_t off,
-		int count, int *eof, void *data);
-static int dispatch_procfs_write(struct file *file,
-		const char __user * userbuf,
-		unsigned long count, void *data);
-static char *next_cmd(char **cmds);
-
-/* sysfs support */
-struct attribute_set {
-	unsigned int members, max_members;
-	struct attribute_group group;
-};
-
-static struct attribute_set *create_attr_set(unsigned int max_members,
-						const char* name);
-#define destroy_attr_set(_set) \
-	kfree(_set);
-static int add_to_attr_set(struct attribute_set* s, struct attribute *attr);
-static int add_many_to_attr_set(struct attribute_set* s,
-			struct attribute **attr,
-			unsigned int count);
-#define register_attr_set_with_sysfs(_attr_set, _kobj) \
-	sysfs_create_group(_kobj, &_attr_set->group)
-static void delete_attr_set(struct attribute_set* s, struct kobject *kobj);
-
-static int parse_strtoul(const char *buf, unsigned long max,
-			unsigned long *value);
-
-/* Device model */
-static struct platform_device *tpacpi_pdev;
-static struct platform_device *tpacpi_sensors_pdev;
-static struct device *tpacpi_hwmon;
-static struct platform_driver tpacpi_pdriver;
-static struct input_dev *tpacpi_inputdev;
-static int tpacpi_create_driver_attributes(struct device_driver *drv);
-static void tpacpi_remove_driver_attributes(struct device_driver *drv);
-
-/* Module */
-static int experimental;
-static u32 dbg_level;
-static int force_load;
-static unsigned int hotkey_report_mode;
-
-static int thinkpad_acpi_module_init(void);
-static void thinkpad_acpi_module_exit(void);
-
-
-/****************************************************************************
- * Subdrivers
- */
-
-struct ibm_struct;
-
-struct tp_acpi_drv_struct {
-	const struct acpi_device_id *hid;
-	struct acpi_driver *driver;
-
-	void (*notify) (struct ibm_struct *, u32);
-	acpi_handle *handle;
-	u32 type;
-	struct acpi_device *device;
-};
-
-struct ibm_struct {
-	char *name;
-
-	int (*read) (char *);
-	int (*write) (char *);
-	void (*exit) (void);
-	void (*resume) (void);
-
-	struct list_head all_drivers;
-
-	struct tp_acpi_drv_struct *acpi;
-
-	struct {
-		u8 acpi_driver_registered:1;
-		u8 acpi_notify_installed:1;
-		u8 proc_created:1;
-		u8 init_called:1;
-		u8 experimental:1;
-	} flags;
-};
-
-struct ibm_init_struct {
-	char param[32];
-
-	int (*init) (struct ibm_init_struct *);
-	struct ibm_struct *data;
-};
-
-static struct {
-#ifdef CONFIG_THINKPAD_ACPI_BAY
-	u32 bay_status:1;
-	u32 bay_eject:1;
-	u32 bay_status2:1;
-	u32 bay_eject2:1;
-#endif
-	u32 bluetooth:1;
-	u32 hotkey:1;
-	u32 hotkey_mask:1;
-	u32 hotkey_wlsw:1;
-	u32 light:1;
-	u32 light_status:1;
-	u32 bright_16levels:1;
-	u32 wan:1;
-	u32 fan_ctrl_status_undef:1;
-	u32 input_device_registered:1;
-	u32 platform_drv_registered:1;
-	u32 platform_drv_attrs_registered:1;
-	u32 sensors_pdrv_registered:1;
-	u32 sensors_pdrv_attrs_registered:1;
-	u32 sensors_pdev_attrs_registered:1;
-} tp_features;
-
-struct thinkpad_id_data {
-	unsigned int vendor;	/* ThinkPad vendor:
-				 * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */
-
-	char *bios_version_str;	/* Something like 1ZET51WW (1.03z) */
-	char *ec_version_str;	/* Something like 1ZHT51WW-1.04a */
-
-	u16 bios_model;		/* Big Endian, TP-1Y = 0x5931, 0 = unknown */
-	u16 ec_model;
-
-	char *model_str;
-};
-
-static struct thinkpad_id_data thinkpad_id;
-
-static struct list_head tpacpi_all_drivers;
-
-static struct ibm_init_struct ibms_init[];
-static int set_ibm_param(const char *val, struct kernel_param *kp);
-static int ibm_init(struct ibm_init_struct *iibm);
-static void ibm_exit(struct ibm_struct *ibm);
-
-
-/*
- * procfs master subdriver
- */
-static int thinkpad_acpi_driver_init(struct ibm_init_struct *iibm);
-static int thinkpad_acpi_driver_read(char *p);
-
-
-/*
- * Bay subdriver
- */
-
-#ifdef CONFIG_THINKPAD_ACPI_BAY
-static acpi_handle bay_handle, bay_ej_handle;
-static acpi_handle bay2_handle, bay2_ej_handle;
-
-static int bay_init(struct ibm_init_struct *iibm);
-static void bay_notify(struct ibm_struct *ibm, u32 event);
-static int bay_read(char *p);
-static int bay_write(char *buf);
-#endif /* CONFIG_THINKPAD_ACPI_BAY */
-
-
-/*
- * Beep subdriver
- */
-
-static acpi_handle beep_handle;
-
-static int beep_read(char *p);
-static int beep_write(char *buf);
-
-
-/*
- * Bluetooth subdriver
- */
-
-enum {
-	/* ACPI GBDC/SBDC bits */
-	TP_ACPI_BLUETOOTH_HWPRESENT	= 0x01,	/* Bluetooth hw available */
-	TP_ACPI_BLUETOOTH_RADIOSSW	= 0x02,	/* Bluetooth radio enabled */
-	TP_ACPI_BLUETOOTH_UNK		= 0x04,	/* unknown function */
-};
-
-static int bluetooth_init(struct ibm_init_struct *iibm);
-static int bluetooth_get_radiosw(void);
-static int bluetooth_set_radiosw(int radio_on);
-static int bluetooth_read(char *p);
-static int bluetooth_write(char *buf);
-
-
-/*
- * Brightness (backlight) subdriver
- */
-
-#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
-
-static struct backlight_device *ibm_backlight_device;
-static int brightness_offset = 0x31;
-static int brightness_mode;
-static unsigned int brightness_enable;	/* 0 = no, 1 = yes, 2 = auto */
-
-static int brightness_init(struct ibm_init_struct *iibm);
-static void brightness_exit(void);
-static int brightness_get(struct backlight_device *bd);
-static int brightness_set(int value);
-static int brightness_update_status(struct backlight_device *bd);
-static int brightness_read(char *p);
-static int brightness_write(char *buf);
-
-
-/*
- * CMOS subdriver
- */
-
-static int cmos_read(char *p);
-static int cmos_write(char *buf);
-
-
-/*
- * Dock subdriver
- */
-
-#ifdef CONFIG_THINKPAD_ACPI_DOCK
-static acpi_handle pci_handle;
-static acpi_handle dock_handle;
-
-static void dock_notify(struct ibm_struct *ibm, u32 event);
-static int dock_read(char *p);
-static int dock_write(char *buf);
-#endif /* CONFIG_THINKPAD_ACPI_DOCK */
-
-
-/*
- * EC dump subdriver
- */
-
-static int ecdump_read(char *p) ;
-static int ecdump_write(char *buf);
-
-
-/*
- * Fan subdriver
- */
-
-enum {					/* Fan control constants */
-	fan_status_offset = 0x2f,	/* EC register 0x2f */
-	fan_rpm_offset = 0x84,		/* EC register 0x84: LSB, 0x85 MSB (RPM)
-					 * 0x84 must be read before 0x85 */
-
-	TP_EC_FAN_FULLSPEED = 0x40,	/* EC fan mode: full speed */
-	TP_EC_FAN_AUTO	    = 0x80,	/* EC fan mode: auto fan control */
-
-	TPACPI_FAN_LAST_LEVEL = 0x100,	/* Use cached last-seen fan level */
-};
-
-enum fan_status_access_mode {
-	TPACPI_FAN_NONE = 0,		/* No fan status or control */
-	TPACPI_FAN_RD_ACPI_GFAN,	/* Use ACPI GFAN */
-	TPACPI_FAN_RD_TPEC,		/* Use ACPI EC regs 0x2f, 0x84-0x85 */
-};
-
-enum fan_control_access_mode {
-	TPACPI_FAN_WR_NONE = 0,		/* No fan control */
-	TPACPI_FAN_WR_ACPI_SFAN,	/* Use ACPI SFAN */
-	TPACPI_FAN_WR_TPEC,		/* Use ACPI EC reg 0x2f */
-	TPACPI_FAN_WR_ACPI_FANS,	/* Use ACPI FANS and EC reg 0x2f */
-};
-
-enum fan_control_commands {
-	TPACPI_FAN_CMD_SPEED 	= 0x0001,	/* speed command */
-	TPACPI_FAN_CMD_LEVEL 	= 0x0002,	/* level command  */
-	TPACPI_FAN_CMD_ENABLE	= 0x0004,	/* enable/disable cmd,
-						 * and also watchdog cmd */
-};
-
-static int fan_control_allowed;
-
-static enum fan_status_access_mode fan_status_access_mode;
-static enum fan_control_access_mode fan_control_access_mode;
-static enum fan_control_commands fan_control_commands;
-static u8 fan_control_initial_status;
-static u8 fan_control_desired_level;
-static int fan_watchdog_maxinterval;
-
-static struct mutex fan_mutex;
-
-static acpi_handle fans_handle, gfan_handle, sfan_handle;
-
-static int fan_init(struct ibm_init_struct *iibm);
-static void fan_exit(void);
-static int fan_get_status(u8 *status);
-static int fan_get_status_safe(u8 *status);
-static int fan_get_speed(unsigned int *speed);
-static void fan_update_desired_level(u8 status);
-static void fan_watchdog_fire(struct work_struct *ignored);
-static void fan_watchdog_reset(void);
-static int fan_set_level(int level);
-static int fan_set_level_safe(int level);
-static int fan_set_enable(void);
-static int fan_set_disable(void);
-static int fan_set_speed(int speed);
-static int fan_read(char *p);
-static int fan_write(char *buf);
-static int fan_write_cmd_level(const char *cmd, int *rc);
-static int fan_write_cmd_enable(const char *cmd, int *rc);
-static int fan_write_cmd_disable(const char *cmd, int *rc);
-static int fan_write_cmd_speed(const char *cmd, int *rc);
-static int fan_write_cmd_watchdog(const char *cmd, int *rc);
-
-
-/*
- * Hotkey subdriver
- */
-
-static int hotkey_orig_status;
-static u32 hotkey_orig_mask;
-
-static struct mutex hotkey_mutex;
-
-static int hotkey_init(struct ibm_init_struct *iibm);
-static void hotkey_exit(void);
-static int hotkey_get(int *status, u32 *mask);
-static int hotkey_set(int status, u32 mask);
-static void hotkey_notify(struct ibm_struct *ibm, u32 event);
-static int hotkey_read(char *p);
-static int hotkey_write(char *buf);
-
-
-/*
- * LED subdriver
- */
-
-enum led_access_mode {
-	TPACPI_LED_NONE = 0,
-	TPACPI_LED_570,	/* 570 */
-	TPACPI_LED_OLD,	/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
-	TPACPI_LED_NEW,	/* all others */
-};
-
-enum {	/* For TPACPI_LED_OLD */
-	TPACPI_LED_EC_HLCL = 0x0c,	/* EC reg to get led to power on */
-	TPACPI_LED_EC_HLBL = 0x0d,	/* EC reg to blink a lit led */
-	TPACPI_LED_EC_HLMS = 0x0e,	/* EC reg to select led to command */
-};
-
-static enum led_access_mode led_supported;
-static acpi_handle led_handle;
-
-static int led_init(struct ibm_init_struct *iibm);
-static int led_read(char *p);
-static int led_write(char *buf);
-
-/*
- * Light (thinklight) subdriver
- */
-
-static acpi_handle lght_handle, ledb_handle;
-
-static int light_init(struct ibm_init_struct *iibm);
-static int light_read(char *p);
-static int light_write(char *buf);
-
-
-/*
- * Thermal subdriver
- */
-
-enum thermal_access_mode {
-	TPACPI_THERMAL_NONE = 0,	/* No thermal support */
-	TPACPI_THERMAL_ACPI_TMP07,	/* Use ACPI TMP0-7 */
-	TPACPI_THERMAL_ACPI_UPDT,	/* Use ACPI TMP0-7 with UPDT */
-	TPACPI_THERMAL_TPEC_8,		/* Use ACPI EC regs, 8 sensors */
-	TPACPI_THERMAL_TPEC_16,		/* Use ACPI EC regs, 16 sensors */
-};
-
-enum { /* TPACPI_THERMAL_TPEC_* */
-	TP_EC_THERMAL_TMP0 = 0x78,	/* ACPI EC regs TMP 0..7 */
-	TP_EC_THERMAL_TMP8 = 0xC0,	/* ACPI EC regs TMP 8..15 */
-	TP_EC_THERMAL_TMP_NA = -128,	/* ACPI EC sensor not available */
-};
-
-#define TPACPI_MAX_THERMAL_SENSORS 16	/* Max thermal sensors supported */
-struct ibm_thermal_sensors_struct {
-	s32 temp[TPACPI_MAX_THERMAL_SENSORS];
-};
-
-static enum thermal_access_mode thermal_read_mode;
-
-static int thermal_init(struct ibm_init_struct *iibm);
-static int thermal_get_sensor(int idx, s32 *value);
-static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s);
-static int thermal_read(char *p);
-
-
-/*
- * Video subdriver
- */
-
-enum video_access_mode {
-	TPACPI_VIDEO_NONE = 0,
-	TPACPI_VIDEO_570,	/* 570 */
-	TPACPI_VIDEO_770,	/* 600e/x, 770e, 770x */
-	TPACPI_VIDEO_NEW,	/* all others */
-};
-
-enum {	/* video status flags, based on VIDEO_570 */
-	TP_ACPI_VIDEO_S_LCD = 0x01,	/* LCD output enabled */
-	TP_ACPI_VIDEO_S_CRT = 0x02,	/* CRT output enabled */
-	TP_ACPI_VIDEO_S_DVI = 0x08,	/* DVI output enabled */
-};
-
-enum {  /* TPACPI_VIDEO_570 constants */
-	TP_ACPI_VIDEO_570_PHSCMD = 0x87,	/* unknown magic constant :( */
-	TP_ACPI_VIDEO_570_PHSMASK = 0x03,	/* PHS bits that map to
-						 * video_status_flags */
-	TP_ACPI_VIDEO_570_PHS2CMD = 0x8b,	/* unknown magic constant :( */
-	TP_ACPI_VIDEO_570_PHS2SET = 0x80,	/* unknown magic constant :( */
-};
-
-static enum video_access_mode video_supported;
-static int video_orig_autosw;
-static acpi_handle vid_handle, vid2_handle;
-
-static int video_init(struct ibm_init_struct *iibm);
-static void video_exit(void);
-static int video_outputsw_get(void);
-static int video_outputsw_set(int status);
-static int video_autosw_get(void);
-static int video_autosw_set(int enable);
-static int video_outputsw_cycle(void);
-static int video_expand_toggle(void);
-static int video_read(char *p);
-static int video_write(char *buf);
-
-
-/*
- * Volume subdriver
- */
-
-static int volume_offset = 0x30;
-
-static int volume_read(char *p);
-static int volume_write(char *buf);
-
-
-/*
- * Wan subdriver
- */
-
-enum {
-	/* ACPI GWAN/SWAN bits */
-	TP_ACPI_WANCARD_HWPRESENT	= 0x01,	/* Wan hw available */
-	TP_ACPI_WANCARD_RADIOSSW	= 0x02,	/* Wan radio enabled */
-	TP_ACPI_WANCARD_UNK		= 0x04,	/* unknown function */
-};
-
-static int wan_init(struct ibm_init_struct *iibm);
-static int wan_get_radiosw(void);
-static int wan_set_radiosw(int radio_on);
-static int wan_read(char *p);
-static int wan_write(char *buf);
-
-
-#endif /* __THINKPAD_ACPI_H */

drivers/pnp/pnpacpi/core.c

@@ -183,7 +183,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
 	if (ACPI_SUCCESS(status))
 		dev->capabilities |= PNP_CONFIGURABLE;
 	dev->capabilities |= PNP_READ;
-	if (device->flags.dynamic_status)
+	if (device->flags.dynamic_status && (dev->capabilities & PNP_CONFIGURABLE))
 		dev->capabilities |= PNP_WRITE;
 	if (device->flags.removable)
 		dev->capabilities |= PNP_REMOVABLE;

drivers/power/power_supply_sysfs.c

@@ -115,6 +115,7 @@ static struct device_attribute power_supply_attrs[] = {
 	/* Properties of type `const char *' */
 	POWER_SUPPLY_ATTR(model_name),
 	POWER_SUPPLY_ATTR(manufacturer),
+	POWER_SUPPLY_ATTR(serial_number),
 };
 
 static ssize_t power_supply_show_static_attrs(struct device *dev,

drivers/thermal/Kconfig

@@ -0,0 +1,15 @@
+#
+# Generic thermal sysfs drivers configuration
+#
+
+menuconfig THERMAL
+	bool "Generic Thermal sysfs driver"
+	default y
+	help
+	  Generic Thermal Sysfs driver offers a generic mechanism for
+	  thermal management. Usually it's made up of one or more thermal
+	  zone and cooling device.
+	  each thermal zone contains its own temperature, trip points,
+	  cooling devices.
+	  All platforms with ACPI thermal support can use this driver.
+	  If you want this support, you should say Y here

drivers/thermal/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for sensor chip drivers.
+#
+
+obj-$(CONFIG_THERMAL)		+= thermal.o

drivers/thermal/thermal.c

@@ -0,0 +1,714 @@
+/*
+ *  thermal.c - Generic Thermal Management Sysfs support.
+ *
+ *  Copyright (C) 2008 Intel Corp
+ *  Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com>
+ *  Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com>
+ *
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  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 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/kdev_t.h>
+#include <linux/idr.h>
+#include <linux/thermal.h>
+#include <linux/spinlock.h>
+
+MODULE_AUTHOR("Zhang Rui")
+MODULE_DESCRIPTION("Generic thermal management sysfs support");
+MODULE_LICENSE("GPL");
+
+#define PREFIX "Thermal: "
+
+struct thermal_cooling_device_instance {
+	int id;
+	char name[THERMAL_NAME_LENGTH];
+	struct thermal_zone_device *tz;
+	struct thermal_cooling_device *cdev;
+	int trip;
+	char attr_name[THERMAL_NAME_LENGTH];
+	struct device_attribute attr;
+	struct list_head node;
+};
+
+static DEFINE_IDR(thermal_tz_idr);
+static DEFINE_IDR(thermal_cdev_idr);
+static DEFINE_MUTEX(thermal_idr_lock);
+
+static LIST_HEAD(thermal_tz_list);
+static LIST_HEAD(thermal_cdev_list);
+static DEFINE_MUTEX(thermal_list_lock);
+
+static int get_idr(struct idr *idr, struct mutex *lock, int *id)
+{
+	int err;
+
+      again:
+	if (unlikely(idr_pre_get(idr, GFP_KERNEL) == 0))
+		return -ENOMEM;
+
+	if (lock)
+		mutex_lock(lock);
+	err = idr_get_new(idr, NULL, id);
+	if (lock)
+		mutex_unlock(lock);
+	if (unlikely(err == -EAGAIN))
+		goto again;
+	else if (unlikely(err))
+		return err;
+
+	*id = *id & MAX_ID_MASK;
+	return 0;
+}
+
+static void release_idr(struct idr *idr, struct mutex *lock, int id)
+{
+	if (lock)
+		mutex_lock(lock);
+	idr_remove(idr, id);
+	if (lock)
+		mutex_unlock(lock);
+}
+
+/* sys I/F for thermal zone */
+
+#define to_thermal_zone(_dev) \
+	container_of(_dev, struct thermal_zone_device, device)
+
+static ssize_t
+type_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+
+	return sprintf(buf, "%s\n", tz->type);
+}
+
+static ssize_t
+temp_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+
+	if (!tz->ops->get_temp)
+		return -EPERM;
+
+	return tz->ops->get_temp(tz, buf);
+}
+
+static ssize_t
+mode_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+
+	if (!tz->ops->get_mode)
+		return -EPERM;
+
+	return tz->ops->get_mode(tz, buf);
+}
+
+static ssize_t
+mode_store(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+	int result;
+
+	if (!tz->ops->set_mode)
+		return -EPERM;
+
+	result = tz->ops->set_mode(tz, buf);
+	if (result)
+		return result;
+
+	return count;
+}
+
+static ssize_t
+trip_point_type_show(struct device *dev, struct device_attribute *attr,
+		     char *buf)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+	int trip;
+
+	if (!tz->ops->get_trip_type)
+		return -EPERM;
+
+	if (!sscanf(attr->attr.name, "trip_point_%d_type", &trip))
+		return -EINVAL;
+
+	return tz->ops->get_trip_type(tz, trip, buf);
+}
+
+static ssize_t
+trip_point_temp_show(struct device *dev, struct device_attribute *attr,
+		     char *buf)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+	int trip;
+
+	if (!tz->ops->get_trip_temp)
+		return -EPERM;
+
+	if (!sscanf(attr->attr.name, "trip_point_%d_temp", &trip))
+		return -EINVAL;
+
+	return tz->ops->get_trip_temp(tz, trip, buf);
+}
+
+static DEVICE_ATTR(type, 0444, type_show, NULL);
+static DEVICE_ATTR(temp, 0444, temp_show, NULL);
+static DEVICE_ATTR(mode, 0644, mode_show, mode_store);
+
+static struct device_attribute trip_point_attrs[] = {
+	__ATTR(trip_point_0_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_0_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_1_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_1_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_2_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_2_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_3_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_3_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_4_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_4_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_5_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_5_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_6_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_6_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_7_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_7_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_8_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_8_temp, 0444, trip_point_temp_show, NULL),
+	__ATTR(trip_point_9_type, 0444, trip_point_type_show, NULL),
+	__ATTR(trip_point_9_temp, 0444, trip_point_temp_show, NULL),
+};
+
+#define TRIP_POINT_ATTR_ADD(_dev, _index, result)     \
+do {    \
+	result = device_create_file(_dev,	\
+				&trip_point_attrs[_index * 2]);	\
+	if (result)	\
+		break;	\
+	result = device_create_file(_dev,	\
+			&trip_point_attrs[_index * 2 + 1]);	\
+} while (0)
+
+#define TRIP_POINT_ATTR_REMOVE(_dev, _index)	\
+do {	\
+	device_remove_file(_dev, &trip_point_attrs[_index * 2]);	\
+	device_remove_file(_dev, &trip_point_attrs[_index * 2 + 1]);	\
+} while (0)
+
+/* sys I/F for cooling device */
+#define to_cooling_device(_dev)	\
+	container_of(_dev, struct thermal_cooling_device, device)
+
+static ssize_t
+thermal_cooling_device_type_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct thermal_cooling_device *cdev = to_cooling_device(dev);
+
+	return sprintf(buf, "%s\n", cdev->type);
+}
+
+static ssize_t
+thermal_cooling_device_max_state_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct thermal_cooling_device *cdev = to_cooling_device(dev);
+
+	return cdev->ops->get_max_state(cdev, buf);
+}
+
+static ssize_t
+thermal_cooling_device_cur_state_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct thermal_cooling_device *cdev = to_cooling_device(dev);
+
+	return cdev->ops->get_cur_state(cdev, buf);
+}
+
+static ssize_t
+thermal_cooling_device_cur_state_store(struct device *dev,
+				       struct device_attribute *attr,
+				       const char *buf, size_t count)
+{
+	struct thermal_cooling_device *cdev = to_cooling_device(dev);
+	int state;
+	int result;
+
+	if (!sscanf(buf, "%d\n", &state))
+		return -EINVAL;
+
+	if (state < 0)
+		return -EINVAL;
+
+	result = cdev->ops->set_cur_state(cdev, state);
+	if (result)
+		return result;
+	return count;
+}
+
+static struct device_attribute dev_attr_cdev_type =
+		__ATTR(type, 0444, thermal_cooling_device_type_show, NULL);
+static DEVICE_ATTR(max_state, 0444,
+		   thermal_cooling_device_max_state_show, NULL);
+static DEVICE_ATTR(cur_state, 0644,
+		   thermal_cooling_device_cur_state_show,
+		   thermal_cooling_device_cur_state_store);
+
+static ssize_t
+thermal_cooling_device_trip_point_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct thermal_cooling_device_instance *instance;
+
+	instance =
+	    container_of(attr, struct thermal_cooling_device_instance, attr);
+
+	if (instance->trip == THERMAL_TRIPS_NONE)
+		return sprintf(buf, "-1\n");
+	else
+		return sprintf(buf, "%d\n", instance->trip);
+}
+
+/* Device management */
+
+/**
+ * thermal_zone_bind_cooling_device - bind a cooling device to a thermal zone
+ * this function is usually called in the thermal zone device .bind callback.
+ * @tz:		thermal zone device
+ * @trip:	indicates which trip point the cooling devices is
+ *		associated with in this thermal zone.
+ * @cdev:	thermal cooling device
+ */
+int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
+				     int trip,
+				     struct thermal_cooling_device *cdev)
+{
+	struct thermal_cooling_device_instance *dev;
+	struct thermal_cooling_device_instance *pos;
+	int result;
+
+	if (trip >= tz->trips ||
+	    (trip < 0 && trip != THERMAL_TRIPS_NONE))
+		return -EINVAL;
+
+	if (!tz || !cdev)
+		return -EINVAL;
+
+	dev =
+	    kzalloc(sizeof(struct thermal_cooling_device_instance), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+	dev->tz = tz;
+	dev->cdev = cdev;
+	dev->trip = trip;
+	result = get_idr(&tz->idr, &tz->lock, &dev->id);
+	if (result)
+		goto free_mem;
+
+	sprintf(dev->name, "cdev%d", dev->id);
+	result =
+	    sysfs_create_link(&tz->device.kobj, &cdev->device.kobj, dev->name);
+	if (result)
+		goto release_idr;
+
+	sprintf(dev->attr_name, "cdev%d_trip_point", dev->id);
+	dev->attr.attr.name = dev->attr_name;
+	dev->attr.attr.mode = 0444;
+	dev->attr.show = thermal_cooling_device_trip_point_show;
+	result = device_create_file(&tz->device, &dev->attr);
+	if (result)
+		goto remove_symbol_link;
+
+	mutex_lock(&tz->lock);
+	list_for_each_entry(pos, &tz->cooling_devices, node)
+	    if (pos->tz == tz && pos->trip == trip && pos->cdev == cdev) {
+		result = -EEXIST;
+		break;
+	}
+	if (!result)
+		list_add_tail(&dev->node, &tz->cooling_devices);
+	mutex_unlock(&tz->lock);
+
+	if (!result)
+		return 0;
+
+	device_remove_file(&tz->device, &dev->attr);
+      remove_symbol_link:
+	sysfs_remove_link(&tz->device.kobj, dev->name);
+      release_idr:
+	release_idr(&tz->idr, &tz->lock, dev->id);
+      free_mem:
+	kfree(dev);
+	return result;
+}
+EXPORT_SYMBOL(thermal_zone_bind_cooling_device);
+
+/**
+ * thermal_zone_unbind_cooling_device - unbind a cooling device from a thermal zone
+ * this function is usually called in the thermal zone device .unbind callback.
+ * @tz:		thermal zone device
+ * @trip:	indicates which trip point the cooling devices is
+ *		associated with in this thermal zone.
+ * @cdev:	thermal cooling device
+ */
+int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
+				       int trip,
+				       struct thermal_cooling_device *cdev)
+{
+	struct thermal_cooling_device_instance *pos, *next;
+
+	mutex_lock(&tz->lock);
+	list_for_each_entry_safe(pos, next, &tz->cooling_devices, node) {
+		if (pos->tz == tz && pos->trip == trip
+		    && pos->cdev == cdev) {
+			list_del(&pos->node);
+			mutex_unlock(&tz->lock);
+			goto unbind;
+		}
+	}
+	mutex_unlock(&tz->lock);
+
+	return -ENODEV;
+
+      unbind:
+	device_remove_file(&tz->device, &pos->attr);
+	sysfs_remove_link(&tz->device.kobj, pos->name);
+	release_idr(&tz->idr, &tz->lock, pos->id);
+	kfree(pos);
+	return 0;
+}
+EXPORT_SYMBOL(thermal_zone_unbind_cooling_device);
+
+static void thermal_release(struct device *dev)
+{
+	struct thermal_zone_device *tz;
+	struct thermal_cooling_device *cdev;
+
+	if (!strncmp(dev->bus_id, "thermal_zone", sizeof "thermal_zone" - 1)) {
+		tz = to_thermal_zone(dev);
+		kfree(tz);
+	} else {
+		cdev = to_cooling_device(dev);
+		kfree(cdev);
+	}
+}
+
+static struct class thermal_class = {
+	.name = "thermal",
+	.dev_release = thermal_release,
+};
+
+/**
+ * thermal_cooling_device_register - register a new thermal cooling device
+ * @type:	the thermal cooling device type.
+ * @devdata:	device private data.
+ * @ops:		standard thermal cooling devices callbacks.
+ */
+struct thermal_cooling_device *thermal_cooling_device_register(char *type,
+		       void *devdata, struct thermal_cooling_device_ops *ops)
+{
+	struct thermal_cooling_device *cdev;
+	struct thermal_zone_device *pos;
+	int result;
+
+	if (strlen(type) >= THERMAL_NAME_LENGTH)
+		return NULL;
+
+	if (!ops || !ops->get_max_state || !ops->get_cur_state ||
+		!ops->set_cur_state)
+		return NULL;
+
+	cdev = kzalloc(sizeof(struct thermal_cooling_device), GFP_KERNEL);
+	if (!cdev)
+		return NULL;
+
+	result = get_idr(&thermal_cdev_idr, &thermal_idr_lock, &cdev->id);
+	if (result) {
+		kfree(cdev);
+		return NULL;
+	}
+
+	strcpy(cdev->type, type);
+	cdev->ops = ops;
+	cdev->device.class = &thermal_class;
+	cdev->devdata = devdata;
+	sprintf(cdev->device.bus_id, "cooling_device%d", cdev->id);
+	result = device_register(&cdev->device);
+	if (result) {
+		release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id);
+		kfree(cdev);
+		return NULL;
+	}
+
+	/* sys I/F */
+	if (type) {
+		result = device_create_file(&cdev->device,
+					    &dev_attr_cdev_type);
+		if (result)
+			goto unregister;
+	}
+
+	result = device_create_file(&cdev->device, &dev_attr_max_state);
+	if (result)
+		goto unregister;
+
+	result = device_create_file(&cdev->device, &dev_attr_cur_state);
+	if (result)
+		goto unregister;
+
+	mutex_lock(&thermal_list_lock);
+	list_add(&cdev->node, &thermal_cdev_list);
+	list_for_each_entry(pos, &thermal_tz_list, node) {
+		if (!pos->ops->bind)
+			continue;
+		result = pos->ops->bind(pos, cdev);
+		if (result)
+			break;
+
+	}
+	mutex_unlock(&thermal_list_lock);
+
+	if (!result)
+		return cdev;
+
+      unregister:
+	release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id);
+	device_unregister(&cdev->device);
+	return NULL;
+}
+EXPORT_SYMBOL(thermal_cooling_device_register);
+
+/**
+ * thermal_cooling_device_unregister - removes the registered thermal cooling device
+ *
+ * @cdev:	the thermal cooling device to remove.
+ *
+ * thermal_cooling_device_unregister() must be called when the device is no
+ * longer needed.
+ */
+void thermal_cooling_device_unregister(struct
+				       thermal_cooling_device
+				       *cdev)
+{
+	struct thermal_zone_device *tz;
+	struct thermal_cooling_device *pos = NULL;
+
+	if (!cdev)
+		return;
+
+	mutex_lock(&thermal_list_lock);
+	list_for_each_entry(pos, &thermal_cdev_list, node)
+	    if (pos == cdev)
+		break;
+	if (pos != cdev) {
+		/* thermal cooling device not found */
+		mutex_unlock(&thermal_list_lock);
+		return;
+	}
+	list_del(&cdev->node);
+	list_for_each_entry(tz, &thermal_tz_list, node) {
+		if (!tz->ops->unbind)
+			continue;
+		tz->ops->unbind(tz, cdev);
+	}
+	mutex_unlock(&thermal_list_lock);
+	if (cdev->type[0])
+		device_remove_file(&cdev->device,
+				   &dev_attr_cdev_type);
+	device_remove_file(&cdev->device, &dev_attr_max_state);
+	device_remove_file(&cdev->device, &dev_attr_cur_state);
+
+	release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id);
+	device_unregister(&cdev->device);
+	return;
+}
+EXPORT_SYMBOL(thermal_cooling_device_unregister);
+
+/**
+ * thermal_zone_device_register - register a new thermal zone device
+ * @type:	the thermal zone device type
+ * @trips:	the number of trip points the thermal zone support
+ * @devdata:	private device data
+ * @ops:	standard thermal zone device callbacks
+ *
+ * thermal_zone_device_unregister() must be called when the device is no
+ * longer needed.
+ */
+struct thermal_zone_device *thermal_zone_device_register(char *type,
+					int trips, void *devdata,
+					struct thermal_zone_device_ops *ops)
+{
+	struct thermal_zone_device *tz;
+	struct thermal_cooling_device *pos;
+	int result;
+	int count;
+
+	if (strlen(type) >= THERMAL_NAME_LENGTH)
+		return NULL;
+
+	if (trips > THERMAL_MAX_TRIPS || trips < 0)
+		return NULL;
+
+	if (!ops || !ops->get_temp)
+		return NULL;
+
+	tz = kzalloc(sizeof(struct thermal_zone_device), GFP_KERNEL);
+	if (!tz)
+		return NULL;
+
+	INIT_LIST_HEAD(&tz->cooling_devices);
+	idr_init(&tz->idr);
+	mutex_init(&tz->lock);
+	result = get_idr(&thermal_tz_idr, &thermal_idr_lock, &tz->id);
+	if (result) {
+		kfree(tz);
+		return NULL;
+	}
+
+	strcpy(tz->type, type);
+	tz->ops = ops;
+	tz->device.class = &thermal_class;
+	tz->devdata = devdata;
+	tz->trips = trips;
+	sprintf(tz->device.bus_id, "thermal_zone%d", tz->id);
+	result = device_register(&tz->device);
+	if (result) {
+		release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
+		kfree(tz);
+		return NULL;
+	}
+
+	/* sys I/F */
+	if (type) {
+		result = device_create_file(&tz->device, &dev_attr_type);
+		if (result)
+			goto unregister;
+	}
+
+	result = device_create_file(&tz->device, &dev_attr_temp);
+	if (result)
+		goto unregister;
+
+	if (ops->get_mode) {
+		result = device_create_file(&tz->device, &dev_attr_mode);
+		if (result)
+			goto unregister;
+	}
+
+	for (count = 0; count < trips; count++) {
+		TRIP_POINT_ATTR_ADD(&tz->device, count, result);
+		if (result)
+			goto unregister;
+	}
+
+	mutex_lock(&thermal_list_lock);
+	list_add_tail(&tz->node, &thermal_tz_list);
+	if (ops->bind)
+		list_for_each_entry(pos, &thermal_cdev_list, node) {
+			result = ops->bind(tz, pos);
+			if (result)
+				break;
+		}
+	mutex_unlock(&thermal_list_lock);
+
+	if (!result)
+		return tz;
+
+      unregister:
+	release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
+	device_unregister(&tz->device);
+	return NULL;
+}
+EXPORT_SYMBOL(thermal_zone_device_register);
+
+/**
+ * thermal_device_unregister - removes the registered thermal zone device
+ *
+ * @tz: the thermal zone device to remove
+ */
+void thermal_zone_device_unregister(struct thermal_zone_device *tz)
+{
+	struct thermal_cooling_device *cdev;
+	struct thermal_zone_device *pos = NULL;
+	int count;
+
+	if (!tz)
+		return;
+
+	mutex_lock(&thermal_list_lock);
+	list_for_each_entry(pos, &thermal_tz_list, node)
+	    if (pos == tz)
+		break;
+	if (pos != tz) {
+		/* thermal zone device not found */
+		mutex_unlock(&thermal_list_lock);
+		return;
+	}
+	list_del(&tz->node);
+	if (tz->ops->unbind)
+		list_for_each_entry(cdev, &thermal_cdev_list, node)
+		    tz->ops->unbind(tz, cdev);
+	mutex_unlock(&thermal_list_lock);
+
+	if (tz->type[0])
+		device_remove_file(&tz->device, &dev_attr_type);
+	device_remove_file(&tz->device, &dev_attr_temp);
+	if (tz->ops->get_mode)
+		device_remove_file(&tz->device, &dev_attr_mode);
+
+	for (count = 0; count < tz->trips; count++)
+		TRIP_POINT_ATTR_REMOVE(&tz->device, count);
+
+	release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
+	idr_destroy(&tz->idr);
+	mutex_destroy(&tz->lock);
+	device_unregister(&tz->device);
+	return;
+}
+EXPORT_SYMBOL(thermal_zone_device_unregister);
+
+static int __init thermal_init(void)
+{
+	int result = 0;
+
+	result = class_register(&thermal_class);
+	if (result) {
+		idr_destroy(&thermal_tz_idr);
+		idr_destroy(&thermal_cdev_idr);
+		mutex_destroy(&thermal_idr_lock);
+		mutex_destroy(&thermal_list_lock);
+	}
+	return result;
+}
+
+static void __exit thermal_exit(void)
+{
+	class_unregister(&thermal_class);
+	idr_destroy(&thermal_tz_idr);
+	idr_destroy(&thermal_cdev_idr);
+	mutex_destroy(&thermal_idr_lock);
+	mutex_destroy(&thermal_list_lock);
+}
+
+subsys_initcall(thermal_init);
+module_exit(thermal_exit);

include/acpi/acglobal.h

@@ -117,10 +117,6 @@ extern u32 acpi_dbg_layer;
 
 extern u32 acpi_gbl_nesting_level;
 
-/* Event counters */
-
-ACPI_EXTERN u32 acpi_gpe_count;
-
 /* Support for dynamic control method tracing mechanism */
 
 ACPI_EXTERN u32 acpi_gbl_original_dbg_level;

include/acpi/acmacros.h

@@ -486,7 +486,7 @@
 #define ACPI_FUNCTION_NAME(name)
 #endif
 
-#ifdef DEBUG_FUNC_TRACE
+#ifdef CONFIG_ACPI_DEBUG_FUNC_TRACE
 
 #define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
 			  acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
@@ -565,7 +565,7 @@
 
 #endif				/* ACPI_SIMPLE_RETURN_MACROS */
 
-#else /* !DEBUG_FUNC_TRACE */
+#else /* !CONFIG_ACPI_DEBUG_FUNC_TRACE */
 
 #define ACPI_FUNCTION_TRACE(a)
 #define ACPI_FUNCTION_TRACE_PTR(a,b)
@@ -584,7 +584,7 @@
 #define return_UINT32(s)                return(s)
 #define return_PTR(s)                   return(s)
 
-#endif /* DEBUG_FUNC_TRACE */
+#endif /* CONFIG_ACPI_DEBUG_FUNC_TRACE */
 
 /* Conditional execution */
 

include/acpi/acpi_bus.h

@@ -321,6 +321,11 @@ struct acpi_bus_event {
 
 extern struct kobject *acpi_kobj;
 extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
+void acpi_bus_private_data_handler(acpi_handle, u32, void *);
+int acpi_bus_get_private_data(acpi_handle, void **);
+extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
+extern int register_acpi_notifier(struct notifier_block *);
+extern int unregister_acpi_notifier(struct notifier_block *);
 /*
  * External Functions
  */

include/acpi/acpi_drivers.h

@@ -48,6 +48,7 @@
 #define ACPI_BUTTON_HID_SLEEPF		"LNXSLPBN"
 #define ACPI_VIDEO_HID			"LNXVIDEO"
 #define ACPI_BAY_HID			"LNXIOBAY"
+#define ACPI_DOCK_HID			"LNXDOCK"
 
 /* --------------------------------------------------------------------------
                                        PCI
@@ -73,7 +74,6 @@ struct pci_bus;
 
 acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id);
 int acpi_pci_bind(struct acpi_device *device);
-int acpi_pci_unbind(struct acpi_device *device);
 int acpi_pci_bind_root(struct acpi_device *device, struct acpi_pci_id *id,
 		       struct pci_bus *bus);
 

include/acpi/acpi_numa.h

@@ -15,7 +15,6 @@ extern int pxm_to_node(int);
 extern int node_to_pxm(int);
 extern void __acpi_map_pxm_to_node(int, int);
 extern int acpi_map_pxm_to_node(int);
-extern void __cpuinit acpi_unmap_pxm_to_node(int);
 
 #endif				/* CONFIG_ACPI_NUMA */
 #endif				/* __ACP_NUMA_H */

include/acpi/acpiosxf.h

@@ -181,6 +181,9 @@ acpi_os_install_interrupt_handler(u32 gsi,
 acpi_status
 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
 
+void acpi_os_gpe_count(u32 gpe_number);
+void acpi_os_fixed_event_count(u32 fixed_event_number);
+
 /*
  * Threads and Scheduling
  */
@@ -239,8 +242,8 @@ acpi_status acpi_os_validate_interface(char *interface);
 acpi_status acpi_osi_invalidate(char* interface);
 
 acpi_status
-acpi_os_validate_address(u8 space_id,
+acpi_os_validate_address(u8 space_id, acpi_physical_address address,
-			 acpi_physical_address address, acpi_size length);
+			 acpi_size length, char *name);
 
 u64 acpi_os_get_timer(void);
 

include/acpi/processor.h

@@ -4,7 +4,7 @@
 #include <linux/kernel.h>
 #include <linux/cpu.h>
 #include <linux/cpuidle.h>
-
+#include <linux/thermal.h>
 #include <asm/acpi.h>
 
 #define ACPI_PROCESSOR_BUSY_METRIC	10
@@ -34,6 +34,7 @@
 
 #define ACPI_CSTATE_SYSTEMIO	(0)
 #define ACPI_CSTATE_FFH		(1)
+#define ACPI_CSTATE_HALT	(2)
 
 /* Power Management */
 
@@ -64,7 +65,7 @@ struct acpi_processor_cx {
 	u8 valid;
 	u8 type;
 	u32 address;
-	u8 space_id;
+	u8 entry_method;
 	u8 index;
 	u32 latency;
 	u32 latency_ticks;
@@ -176,6 +177,8 @@ struct acpi_processor_throttling {
 	u32 address;
 	u8 duty_offset;
 	u8 duty_width;
+	u8 tsd_valid_flag;
+	unsigned int shared_type;
 	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
 };
 
@@ -218,7 +221,7 @@ struct acpi_processor {
 	struct acpi_processor_performance *performance;
 	struct acpi_processor_throttling throttling;
 	struct acpi_processor_limit limit;
-
+	struct thermal_cooling_device *cdev;
 	/* the _PDC objects for this processor, if any */
 	struct acpi_object_list *pdc;
 };
@@ -316,7 +319,7 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
 int acpi_processor_get_throttling_info(struct acpi_processor *pr);
 extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
 extern struct file_operations acpi_processor_throttling_fops;
-
+extern void acpi_processor_throttling_init(void);
 /* in processor_idle.c */
 int acpi_processor_power_init(struct acpi_processor *pr,
 			      struct acpi_device *device);
@@ -330,7 +333,7 @@ extern struct cpuidle_driver acpi_idle_driver;
 /* in processor_thermal.c */
 int acpi_processor_get_limit_info(struct acpi_processor *pr);
 extern struct file_operations acpi_processor_limit_fops;
-
+extern struct thermal_cooling_device_ops processor_cooling_ops;
 #ifdef CONFIG_CPU_FREQ
 void acpi_thermal_cpufreq_init(void);
 void acpi_thermal_cpufreq_exit(void);

include/linux/acpi.h

@@ -25,6 +25,7 @@
 #ifndef _LINUX_ACPI_H
 #define _LINUX_ACPI_H
 
+#include <linux/ioport.h>	/* for struct resource */
 
 #ifdef	CONFIG_ACPI
 
@@ -43,8 +44,6 @@
 #include <linux/dmi.h>
 
 
-#ifdef CONFIG_ACPI
-
 enum acpi_irq_model_id {
 	ACPI_IRQ_MODEL_PIC = 0,
 	ACPI_IRQ_MODEL_IOAPIC,
@@ -80,7 +79,6 @@ typedef int (*acpi_table_handler) (struct acpi_table_header *table);
 typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
 
 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
-unsigned long acpi_find_rsdp (void);
 int acpi_boot_init (void);
 int acpi_boot_table_init (void);
 int acpi_numa_init (void);
@@ -115,8 +113,8 @@ int acpi_unmap_lsapic(int cpu);
 
 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
-
+void acpi_irq_stats_init(void);
-extern int acpi_mp_config;
+extern u32 acpi_irq_handled;
 
 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 extern int pci_mmcfg_config_num;
@@ -124,12 +122,6 @@ extern int pci_mmcfg_config_num;
 extern int sbf_port;
 extern unsigned long acpi_realmode_flags;
 
-#else	/* !CONFIG_ACPI */
-
-#define acpi_mp_config	0
-
-#endif 	/* !CONFIG_ACPI */
-
 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 
@@ -145,8 +137,6 @@ extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
  */
 void acpi_unregister_gsi (u32 gsi);
 
-#ifdef CONFIG_ACPI
-
 struct acpi_prt_entry {
 	struct list_head	node;
 	struct acpi_pci_id	id;
@@ -179,8 +169,6 @@ struct acpi_pci_driver {
 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 
-#endif /* CONFIG_ACPI */
-
 #ifdef CONFIG_ACPI_EC
 
 extern int ec_read(u8 addr, u8 *val);
@@ -192,6 +180,26 @@ extern int ec_transaction(u8 command,
 
 #endif /*CONFIG_ACPI_EC*/
 
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+
+typedef void (*wmi_notify_handler) (u32 value, void *context);
+
+extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
+					u32 method_id,
+					const struct acpi_buffer *in,
+					struct acpi_buffer *out);
+extern acpi_status wmi_query_block(const char *guid, u8 instance,
+					struct acpi_buffer *out);
+extern acpi_status wmi_set_block(const char *guid, u8 instance,
+					const struct acpi_buffer *in);
+extern acpi_status wmi_install_notify_handler(const char *guid,
+					wmi_notify_handler handler, void *data);
+extern acpi_status wmi_remove_notify_handler(const char *guid);
+extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
+extern bool wmi_has_guid(const char *guid);
+
+#endif	/* CONFIG_ACPI_WMI */
+
 extern int acpi_blacklisted(void);
 #ifdef CONFIG_DMI
 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
@@ -217,6 +225,13 @@ extern int pnpacpi_disabled;
 #define PXM_INVAL	(-1)
 #define NID_INVAL	(-1)
 
+int acpi_check_resource_conflict(struct resource *res);
+
+int acpi_check_region(resource_size_t start, resource_size_t n,
+		      const char *name);
+int acpi_check_mem_region(resource_size_t start, resource_size_t n,
+		      const char *name);
+
 #else	/* CONFIG_ACPI */
 
 static inline int acpi_boot_init(void)
@@ -229,5 +244,22 @@ static inline int acpi_boot_table_init(void)
 	return 0;
 }
 
+static inline int acpi_check_resource_conflict(struct resource *res)
+{
+	return 0;
+}
+
+static inline int acpi_check_region(resource_size_t start, resource_size_t n,
+				    const char *name)
+{
+	return 0;
+}
+
+static inline int acpi_check_mem_region(resource_size_t start,
+					resource_size_t n, const char *name)
+{
+	return 0;
+}
+
 #endif	/* !CONFIG_ACPI */
 #endif	/*_LINUX_ACPI_H*/

include/linux/cpuidle.h

@@ -46,9 +46,10 @@ struct cpuidle_state {
 /* Idle State Flags */
 #define CPUIDLE_FLAG_TIME_VALID	(0x01) /* is residency time measurable? */
 #define CPUIDLE_FLAG_CHECK_BM	(0x02) /* BM activity will exit state */
-#define CPUIDLE_FLAG_SHALLOW	(0x10) /* low latency, minimal savings */
+#define CPUIDLE_FLAG_POLL	(0x10) /* no latency, no savings */
-#define CPUIDLE_FLAG_BALANCED	(0x20) /* medium latency, moderate savings */
+#define CPUIDLE_FLAG_SHALLOW	(0x20) /* low latency, minimal savings */
-#define CPUIDLE_FLAG_DEEP	(0x40) /* high latency, large savings */
+#define CPUIDLE_FLAG_BALANCED	(0x40) /* medium latency, moderate savings */
+#define CPUIDLE_FLAG_DEEP	(0x80) /* high latency, large savings */
 
 #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
 
@@ -178,4 +179,10 @@ static inline void cpuidle_unregister_governor(struct cpuidle_governor *gov) { }
 
 #endif
 
+#ifdef CONFIG_ARCH_HAS_CPU_RELAX
+#define CPUIDLE_DRIVER_STATE_START	1
+#else
+#define CPUIDLE_DRIVER_STATE_START	0
+#endif
+
 #endif /* _LINUX_CPUIDLE_H */

include/linux/dmi.h

@@ -79,7 +79,6 @@ extern void dmi_scan_machine(void);
 extern int dmi_get_year(int field);
 extern int dmi_name_in_vendors(const char *str);
 extern int dmi_available;
-extern char *dmi_get_slot(int slot);
 
 #else
 
@@ -90,7 +89,6 @@ static inline const struct dmi_device * dmi_find_device(int type, const char *na
 static inline int dmi_get_year(int year) { return 0; }
 static inline int dmi_name_in_vendors(const char *s) { return 0; }
 #define dmi_available 0
-static inline char *dmi_get_slot(int slot) { return NULL; }
 
 #endif
 

include/linux/kernel.h

@@ -243,6 +243,7 @@ extern enum system_states {
 #define TAINT_BAD_PAGE			(1<<5)
 #define TAINT_USER			(1<<6)
 #define TAINT_DIE			(1<<7)
+#define TAINT_OVERRIDDEN_ACPI_TABLE	(1<<8)
 
 extern void dump_stack(void) __cold;
 

include/linux/power_supply.h

@@ -94,6 +94,7 @@ enum power_supply_property {
 	/* Properties of type `const char *' */
 	POWER_SUPPLY_PROP_MODEL_NAME,
 	POWER_SUPPLY_PROP_MANUFACTURER,
+	POWER_SUPPLY_PROP_SERIAL_NUMBER,
 };
 
 enum power_supply_type {

include/linux/sonypi.h

@@ -101,6 +101,8 @@
 #define SONYPI_EVENT_FNKEY_RELEASED		59
 #define SONYPI_EVENT_WIRELESS_ON		60
 #define SONYPI_EVENT_WIRELESS_OFF		61
+#define SONYPI_EVENT_ZOOM_IN_PRESSED		62
+#define SONYPI_EVENT_ZOOM_OUT_PRESSED		63
 
 /* get/set brightness */
 #define SONYPI_IOCGBRT		_IOR('v', 0, __u8)

include/linux/thermal.h

@@ -0,0 +1,94 @@
+/*
+ *  thermal.h  ($Revision: 0 $)
+ *
+ *  Copyright (C) 2008  Intel Corp
+ *  Copyright (C) 2008  Zhang Rui <rui.zhang@intel.com>
+ *  Copyright (C) 2008  Sujith Thomas <sujith.thomas@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *  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 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#ifndef __THERMAL_H__
+#define __THERMAL_H__
+
+#include <linux/idr.h>
+#include <linux/device.h>
+
+struct thermal_zone_device;
+struct thermal_cooling_device;
+
+struct thermal_zone_device_ops {
+	int (*bind) (struct thermal_zone_device *,
+		     struct thermal_cooling_device *);
+	int (*unbind) (struct thermal_zone_device *,
+		       struct thermal_cooling_device *);
+	int (*get_temp) (struct thermal_zone_device *, char *);
+	int (*get_mode) (struct thermal_zone_device *, char *);
+	int (*set_mode) (struct thermal_zone_device *, const char *);
+	int (*get_trip_type) (struct thermal_zone_device *, int, char *);
+	int (*get_trip_temp) (struct thermal_zone_device *, int, char *);
+};
+
+struct thermal_cooling_device_ops {
+	int (*get_max_state) (struct thermal_cooling_device *, char *);
+	int (*get_cur_state) (struct thermal_cooling_device *, char *);
+	int (*set_cur_state) (struct thermal_cooling_device *, unsigned int);
+};
+
+#define THERMAL_TRIPS_NONE -1
+#define THERMAL_MAX_TRIPS 10
+#define THERMAL_NAME_LENGTH 20
+struct thermal_cooling_device {
+	int id;
+	char type[THERMAL_NAME_LENGTH];
+	struct device device;
+	void *devdata;
+	struct thermal_cooling_device_ops *ops;
+	struct list_head node;
+};
+
+#define KELVIN_TO_CELSIUS(t)	(long)(((long)t-2732 >= 0) ?	\
+				((long)t-2732+5)/10 : ((long)t-2732-5)/10)
+#define CELSIUS_TO_KELVIN(t)	((t)*10+2732)
+
+struct thermal_zone_device {
+	int id;
+	char type[THERMAL_NAME_LENGTH];
+	struct device device;
+	void *devdata;
+	int trips;
+	struct thermal_zone_device_ops *ops;
+	struct list_head cooling_devices;
+	struct idr idr;
+	struct mutex lock;	/* protect cooling devices list */
+	struct list_head node;
+};
+
+struct thermal_zone_device *thermal_zone_device_register(char *, int, void *,
+					struct thermal_zone_device_ops *);
+void thermal_zone_device_unregister(struct thermal_zone_device *);
+
+int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
+				     struct thermal_cooling_device *);
+int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
+				       struct thermal_cooling_device *);
+
+struct thermal_cooling_device *thermal_cooling_device_register(char *, void *,
+					struct thermal_cooling_device_ops *);
+void thermal_cooling_device_unregister(struct thermal_cooling_device *);
+
+#endif				/* __THERMAL_H__ */

init/initramfs.c

@@ -538,7 +538,7 @@ skip:
 	initrd_end = 0;
 }
 
-static int __init populate_rootfs(void)
+int __init populate_rootfs(void)
 {
 	char *err = unpack_to_rootfs(__initramfs_start,
 			 __initramfs_end - __initramfs_start, 0);
@@ -577,4 +577,10 @@ static int __init populate_rootfs(void)
 	}
 	return 0;
 }
+#ifndef CONFIG_ACPI_CUSTOM_DSDT_INITRD
+/*
+ * if this option is enabled, populate_rootfs() is called _earlier_ in the
+ * boot sequence. This insures that the ACPI initialisation can find the file.
+ */
 rootfs_initcall(populate_rootfs);
+#endif

init/main.c

@@ -102,6 +102,12 @@ static inline void mark_rodata_ro(void) { }
 extern void tc_init(void);
 #endif
 
+#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
+extern int populate_rootfs(void);
+#else
+static inline void populate_rootfs(void) {}
+#endif
+
 enum system_states system_state;
 EXPORT_SYMBOL(system_state);
 
@@ -648,6 +654,7 @@ asmlinkage void __init start_kernel(void)
 
 	check_bugs();
 
+	populate_rootfs(); /* For DSDT override from initramfs */
 	acpi_early_init(); /* before LAPIC and SMP init */
 
 	/* Do the rest non-__init'ed, we're now alive */

kernel/panic.c

@@ -161,7 +161,7 @@ const char *print_tainted(void)
 {
 	static char buf[20];
 	if (tainted) {
-		snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c",
+		snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c%c",
 			tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G',
 			tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
 			tainted & TAINT_UNSAFE_SMP ? 'S' : ' ',
@@ -169,7 +169,8 @@ const char *print_tainted(void)
 			tainted & TAINT_MACHINE_CHECK ? 'M' : ' ',
 			tainted & TAINT_BAD_PAGE ? 'B' : ' ',
 			tainted & TAINT_USER ? 'U' : ' ',
-			tainted & TAINT_DIE ? 'D' : ' ');
+			tainted & TAINT_DIE ? 'D' : ' ',
+			tainted & TAINT_OVERRIDDEN_ACPI_TABLE ? 'A' : ' ');
 	}
 	else
 		snprintf(buf, sizeof(buf), "Not tainted");

kernel/power/Kconfig

@@ -74,8 +74,8 @@ config PM_TRACE_RTC
 	RTC across reboots, so that you can debug a machine that just hangs
 	during suspend (or more commonly, during resume).
 
-	To use this debugging feature you should attempt to suspend the machine,
+	To use this debugging feature you should attempt to suspend the
-	then reboot it, then run
+	machine, reboot it and then run
 
 		dmesg -s 1000000 | grep 'hash matches'
 
@@ -123,7 +123,10 @@ config HIBERNATION
 	  called "hibernation" in user interfaces.  STD checkpoints the
 	  system and powers it off; and restores that checkpoint on reboot.
 
-	  You can suspend your machine with 'echo disk > /sys/power/state'.
+	  You can suspend your machine with 'echo disk > /sys/power/state'
+	  after placing resume=/dev/swappartition on the kernel command line
+	  in your bootloader's configuration file.
+
 	  Alternatively, you can use the additional userland tools available
 	  from <http://suspend.sf.net>.