[GIT PATCH] ACPI paches for 2.6.24-rc0

From: Len Brown
Date: Wed Oct 10 2007 - 03:12:23 EST

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Hi Linus,

please pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git release

Multiple random branches which have been queued for a while...
A new platform specific driver for Fujitsu laptops.

cpuidle is new, and is not perfect, but it seems time for it to get it upstream
where it will get some wider exposure now that people are doing things
like running powertop to tune tickless kernels...
The old ACPI idle code runs when CONFIG_CPU_IDLE=n.

This will update the files shown below.

thanks!

-Len

ps. individual patches are available on linux-acpi@xxxxxxxxxxxxxxx
and a consolidated plain patch is available here:
ftp://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2.6.23/acpi-release-20070126-2.6.23.diff.gz

Documentation/thinkpad-acpi.txt | 25
arch/i386/Kconfig | 2
arch/x86_64/Kconfig | 2
drivers/Makefile | 1
drivers/acpi/Kconfig | 14
drivers/acpi/Makefile | 1
drivers/acpi/ac.c | 33
drivers/acpi/battery.c | 1038 +++++--------
drivers/acpi/bus.c | 23
drivers/acpi/ec.c | 93 -
drivers/acpi/events/evevent.c | 6
drivers/acpi/hardware/hwregs.c | 89 -
drivers/acpi/hardware/hwsleep.c | 40
drivers/acpi/osl.c | 8
drivers/acpi/processor_core.c | 22
drivers/acpi/processor_idle.c | 488 ++++++
drivers/acpi/sbs.c | 1869 +++++++------------------
drivers/acpi/sbshc.c | 309 ++++
drivers/acpi/sbshc.h | 27
drivers/acpi/sleep/main.c | 6
drivers/acpi/sleep/sleep.h | 1
drivers/acpi/sleep/wakeup.c | 117 -
drivers/acpi/tables/tbutils.c | 2
drivers/acpi/thermal.c | 28
drivers/acpi/video.c | 30
drivers/cpuidle/Kconfig | 20
drivers/cpuidle/Makefile | 5
drivers/cpuidle/cpuidle.c | 295 +++
drivers/cpuidle/cpuidle.h | 33
drivers/cpuidle/driver.c | 56
drivers/cpuidle/governor.c | 141 +
drivers/cpuidle/governors/Makefile | 6
drivers/cpuidle/governors/ladder.c | 166 ++
drivers/cpuidle/governors/menu.c | 137 +
drivers/cpuidle/sysfs.c | 361 ++++
drivers/misc/Kconfig | 17
drivers/misc/Makefile | 1
drivers/misc/fujitsu-laptop.c | 358 ++++
drivers/misc/sony-laptop.c | 204 +-
drivers/misc/thinkpad_acpi.c | 207 ++
drivers/misc/thinkpad_acpi.h | 37
drivers/net/wireless/ipw2100.c | 29
drivers/net/wireless/ipw2100.h | 2
include/acpi/achware.h | 4
include/acpi/acpi_bus.h | 2
include/acpi/acpixf.h | 2
include/acpi/processor.h | 5
include/linux/acpi.h | 26
include/linux/cpuidle.h | 180 ++
include/linux/tick.h | 9
kernel/time/tick-sched.c | 16
51 files changed, 4182 insertions(+), 2411 deletions(-)

through these commits:

Alexey Starikovskiy (21):
ACPI: Thermal: Drop concurrent thermal checks
ACPI: video: Don't call absent methods
ACPI: VIDEO: Adjust current level to closest available one.
ACPI: EC: Drop ECDT-based boot_ec as soon as we find DSDT-based one.
ACPI: Hibernate erroneously disabled Suspend wakeup devices
ACPI: Battery: don't use acpi_extract_package()
ACPI: Battery: simplify update scheme
ACPI: Battery: Misc clean-ups, no functional changes
ACPI: Battery: Add sysfs support
ACPI: Battery: add sysfs alarm
ACPI: Add acpi_bus_generate_event4() function
ACPI: EC: Add new query handler to list head.
ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)
ACPI: SBS: Simplify data structures in SBS
ACPI: SBS: Make SBS reads table-driven.
ACPI: SBS: Add support for power_supply class (and sysfs)
ACPI: SBS: Add ACPI_PROCFS around procfs handling code.
ACPI: SBS: Add sysfs alarm
ACPI: AC: Add sysfs interface
ACPICA: hw: remove use_lock flag from acpi_hw_register_{read, write}
ACPICA: hw: Don't carry spinlock over suspend

Andreas Herrmann (2):
sony-laptop/thinkpad-acpi: fix INPUT=n build
acpi_video: kernel build error if !INPUT

Andrew Morton (1):
ACPI: suppress uninitialized var warning

Henrique de Moraes Holschuh (10):
ACPI: thinkpad-acpi: make room for more features in tp_features bitfield
ACPI: thinkpad-acpi: issue EV_SYNC after EV_SWITCH
ACPI: thinkpad-acpi: add mutex-based locking to input device event send path
ACPI: thinkpad-acpi: keep track of module state
ACPI: thinkpad-acpi: check version of hot key firmware
ACPI: thinkpad-acpi: dequeue all pending hot key events at once (v2.2)
ACPI: thinkpad-acpi: fix regression on HKEY LID event handling
ACPI: thinkpad-acpi: use a separate platform device for hwmon and name it (v2)
ACPI: thinkpad-acpi: duplicate driver attributes to new hwmon pdrv
ACPI: thinkpad-acpi: skip blanks before the data when parsing sysfs

Jonathan Woithe (1):
fujitsu-laptop: create Fujitsu laptop platform specific driver

Len Brown (3):
ACPI: thermal: use round_jiffies when thermal zone polling is enabled
cpuidle: consolidate 2.6.22 cpuidle branch into one patch
ACPI: cpuidle: port idle timer suspend/resume workaround to cpuidle

Mattia Dongili (1):
sony-laptop: old Vaio models contain 2 IO port entries

Rafael J. Wysocki (2):
Hibernation: Make sure that ACPI is enabled in acpi_hibernation_finish
ACPI: clean up acpi_enter_sleep_state_prep

with this log:

commit 00a2b433557f10736e8a02de619b3e9052556c12
Merge: de85871... 2d571b3...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 01:00:45 2007 -0400

Pull acpica into test branch

commit 2d571b33cf7efd6a894e765e3cb45587ec5b834a
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Sun Sep 30 22:39:42 2007 +0400

ACPICA: hw: Don't carry spinlock over suspend

ACPI uses acpi_get_register() in order to get into suspend.
This function is guarded by acpi_gbl_hardware_lock, which will be carried
into resume phase.
At resume interrupts are enabled and first ACPI interrupt deadlocks on this
lock.
Solution seems to be to not lock register read, as there are no concurrent
activity at this point.

Reference: http://bugzilla.kernel.org/show_bug.cgi?id=7499

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d30dc9abb4aacfd4df3f486f22bcbc0531b73283
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Sun Sep 30 22:39:36 2007 +0400

ACPICA: hw: remove use_lock flag from acpi_hw_register_{read, write}

use_lock flag is used once for acpi_hw_register_read, and never for
acpi_hw_register_write. It will greatly simplify understanding of
locking if we just drop this use_lock altogether, and wrap the only call
to ..._read in lock/unlock.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit de85871a9a53c00cae4c3a70849b5eaad0eb38b2
Merge: 731aa5f... e196441...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:32:13 2007 -0400

Pull cpuidle into test branch

commit 731aa5fd9971a5163845fbe55de63d686a11da0a
Merge: 27345a5... 4c61106...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:30:55 2007 -0400

Pull bugzilla-8709 into release branch

commit 27345a5109f36779187311f77e30bcf596571c29
Merge: e270051... 9b03933...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:30:40 2007 -0400

Pull bugzilla-292300 into release branch

commit e270051d9c6e5f0b31668ec1f0d864ab9920ffca
Merge: a2883df... d5b4a3d...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:30:19 2007 -0400

Pull battery-sbs-ac into release branch

commit a2883dfa2e4a94b24109b2bfe735561e50cc44b4
Merge: 73a855f... 6e21578...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:29:40 2007 -0400

Pull thermal into release branch

commit 73a855f70d9b3571fa878727cbc568d9774c6dce
Merge: 194e3d1... 63f0edf...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:29:11 2007 -0400

Pull video into release branch

Conflicts:

drivers/acpi/video.c

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 194e3d174043f5ab22649a5cb38a1c05d015750f
Merge: bf0a40b... d048253...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:28:17 2007 -0400

Pull fujitsu-v3 into release branch

commit bf0a40b77ab1ce13fb6fa3bf7c8e413bac02873a
Merge: 2cde4af... 32afbf0...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:28:04 2007 -0400

Pull thinkpad into release branch

commit 2cde4afacad1d66a129ad8787c01ce122382559a
Merge: e67c5d8... fd1caae...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:27:58 2007 -0400

Pull sony-2.6.24 into release branch

commit e67c5d8df119d5e85c0b7525a6c9d356ac6f7989
Merge: 67e74fd... 6cffd46...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:27:44 2007 -0400

Pull suspend into release branch

commit 67e74fdd81349a92fcece318a5ee41714273eb01
Merge: bbf25010f... 8ab7367...
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 10 00:27:26 2007 -0400

Pull randconfig into release branch

commit e196441bdf2dbf0526b28a6829c39557c236d611
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Thu Oct 4 01:23:47 2007 -0400

ACPI: cpuidle: port idle timer suspend/resume workaround to cpuidle

Some timers stop during C2 and C3, and so there are various
generations of timer broadcast workarounds to deal with that.
But that (already complex) code gets confused during suspend.

As it is unlikely that deep C-states would save much power
during the actual suspend/resume process anyway, deep C-states
were disabled via the addition of .suspend/.resume hooks
in to the ACPI processor driver.

Here that workaround is ported to the cpuidle version of
the ACPI idle loop. Technically, ACPI could un-register
itself from cpuidle on .suspend, but that code path
is currently quite cumbersome. So instead,
we simply invoke C1 from the C2 and C3 handlers
for the duration of .suspend/.resume.

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 6cffd46651b881a11791a7ef4d99f2f20853fcd9
Author: Rafael J. Wysocki <rjw@xxxxxxx>
Date: Tue Oct 2 13:24:09 2007 -0700

ACPI: clean up acpi_enter_sleep_state_prep

Remove some redundant code from acpi_enter_sleep_state_prep() and clean up
a comment in there.

Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8a0bb7362587807fec985f72fb0317aa8ed24835
Author: Rafael J. Wysocki <rjw@xxxxxxx>
Date: Tue Oct 2 13:24:08 2007 -0700

Hibernation: Make sure that ACPI is enabled in acpi_hibernation_finish

If the BIOS does not enable ACPI and the "acpi=off" command line parameter
is passed to the boot kernel, ACPI may be disabled when the (restored)
image kernel attempts to execute acpi_hibernation_finish(). To prevent
this from happening we can call acpi_enable() from
acpi_hibernation_finish() (if ACPI is already enabled, this will have no
effect).

Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8ab7367f483d1d676d61fca58498a73b194dda82
Author: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Date: Tue Oct 2 13:24:10 2007 -0700

ACPI: suppress uninitialized var warning

drivers/acpi/tables/tbutils.c: In function `acpi_tb_parse_root_table':
drivers/acpi/tables/tbutils.c:403: warning: `rsdt_address' may be used uninitialized in this function

Reported-by: Uwe Bugla <uwe.bugla@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 4f86d3a8e297205780cca027e974fd5f81064780
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Oct 3 18:58:00 2007 -0400

cpuidle: consolidate 2.6.22 cpuidle branch into one patch

commit e5a16b1f9eec0af7cfa0830304b41c1c0833cf9f
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Tue Oct 2 23:44:44 2007 -0400

cpuidle: shrink diff

processor_idle.c | 440 +++++++++++++++++++++++++++++++++++++++++--
1 file changed, 429 insertions(+), 11 deletions(-)

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit dfbb9d5aedfb18848a3e0d6f6e3e4969febb209c
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Sep 26 02:17:55 2007 -0400

cpuidle: reduce diff size

Reduces the cpuidle processor_idle.c diff vs 2.6.22 from this
processor_idle.c | 2006 ++++++++++++++++++++++++++-----------------
1 file changed, 1219 insertions(+), 787 deletions(-)

to this:
processor_idle.c | 502 +++++++++++++++++++++++++++++++++++++++----
1 file changed, 458 insertions(+), 44 deletions(-)

...for the purpose of making the cpuilde patch less invasive
and easier to review.

no functional changes. build tested only.

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 889172fc915f5a7fe20f35b133cbd205ce69bf6c
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Thu Sep 13 13:40:05 2007 -0700

cpuidle: Retain old ACPI policy for !CONFIG_CPU_IDLE

Retain the old policy in processor_idle, so that when CPU_IDLE is not
configured, old C-state policy will still be used. This provides a
clean gradual migration path from old ACPI policy to new cpuidle
based policy.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 9544a8181edc7ecc33b3bfd69271571f98ed08bc
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Thu Sep 13 13:39:17 2007 -0700

cpuidle: Configure governors by default

Quoting Len "Do not give an option to users to shoot themselves in the foot".

Remove the configurability of ladder and menu governors as they are
needed for default policy of cpuidle. That way users will not be able to
have cpuidle without any policy loosing all C-state power savings.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8975059a2c1e56cfe83d1bcf031bcf4cb39be743
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Tue Aug 21 18:27:07 2007 -0400

CPUIDLE: load ACPI properly when CPUIDLE is disabled

Change the registration return codes for when CPUIDLE
support is not compiled into the kernel. As a result, the ACPI
processor driver will load properly even if CPUIDLE is unavailable.
However, it may be possible to cleanup the ACPI processor driver further
and eliminate some dead code paths.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit e0322e2b58dd1b12ec669bf84693efe0dc2414a8
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Tue Aug 21 18:26:06 2007 -0400

CPUIDLE: remove cpuidle_get_bm_activity()

Remove cpuidle_get_bm_activity() and updates governors
accordingly.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 18a6e770d5c82ba26653e53d240caa617e09e9ab
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Tue Aug 21 18:25:58 2007 -0400

CPUIDLE: max_cstate fix

Currently max_cstate is limited to 0, resulting in no idle processor
power management on ACPI platforms. This patch restores the value to
the array size.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 1fdc0887286179b40ce24bcdbde663172e205ef0
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Tue Aug 21 18:25:40 2007 -0400

CPUIDLE: handle BM detection inside the ACPI Processor driver

Update the ACPI processor driver to detect BM activity and
limit state entry depth internally, rather than exposing such
requirements to CPUIDLE. As a result, CPUIDLE can drop this
ACPI-specific interface and become more platform independent. BM
activity is now handled much more aggressively than it was in the
original implementation, so some testing coverage may be needed to
verify that this doesn't introduce any DMA buffer under-run issues.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 0ef38840db666f48e3cdd2b769da676c57228dd9
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Tue Aug 21 18:25:14 2007 -0400

CPUIDLE: menu governor updates

Tweak the menu governor to more effectively handle non-timer
break events. Non-timer break events are detected by comparing the
actual sleep time to the expected sleep time. In future revisions, it
may be more reliable to use the timer data structures directly.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit bb4d74fca63fa96cf3ace644b15ae0f12b7df5a1
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Tue Aug 21 18:24:40 2007 -0400

CPUIDLE: fix 'current_governor' sysfs entry

Allow the "current_governor" sysfs entry to properly handle
input terminated with '\n'.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit df3c71559bb69b125f1a48971bf0d17f78bbdf47
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Sun Aug 12 02:00:45 2007 -0400

cpuidle: fix IA64 build (again)

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit a02064579e3f9530fd31baae16b1fc46b5a7bca8
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Sun Aug 12 01:39:27 2007 -0400

cpuidle: Remove support for runtime changing of max_cstate

Remove support for runtime changeability of max_cstate. Drivers can use
use latency APIs.

max_cstate can still be used as a boot time option and dmi override.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 0912a44b13adf22f5e3f607d263aed23b4910d7e
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Sun Aug 12 01:39:16 2007 -0400

cpuidle: Remove ACPI cstate_limit calls from ipw2100

ipw2100 already has code to use accetable_latency interfaces to limit the
C-state. Remove the calls to acpi_set_cstate_limit and acpi_get_cstate_limit
as they are redundant.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit c649a76e76be6bff1fd770d0a775798813a3f6e0
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Sun Aug 12 01:35:39 2007 -0400

cpuidle: compile fix for pause and resume functions

Fix the compilation failure when cpuidle is not compiled in.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Acked-by: Adam Belay <adam.belay@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 2305a5920fb8ee6ccec1c62ade05aa8351091d71
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Thu Jul 19 00:49:00 2007 -0400

cpuidle: re-write

Some portions have been rewritten to make the code cleaner and lighter
weight. The following is a list of changes:

1.) the state name is now included in the sysfs interface
2.) detection, hotplug, and available state modifications are handled by
CPUIDLE drivers directly
3.) the CPUIDLE idle handler is only ever installed when at least one
cpuidle_device is enabled and ready
4.) the menu governor BM code no longer overflows
5.) the sysfs attributes are now printed as unsigned integers, avoiding
negative values
6.) a variety of other small cleanups

Also, Idle drivers are no longer swappable during runtime through the
CPUIDLE sysfs inteface. On i386 and x86_64 most idle handlers (e.g.
poll, mwait, halt, etc.) don't benefit from an infrastructure that
supports multiple states, so I think using a more general case idle
handler selection mechanism would be cleaner.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Acked-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit df25b6b56955714e6e24b574d88d1fd11f0c3ee5
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Tue Jul 24 17:08:21 2007 -0400

cpuidle: fix IA64 buid

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit fd6ada4c14488755ff7068860078c437431fbccd
Author: Adrian Bunk <bunk@xxxxxxxxx>
Date: Mon Jul 9 11:33:13 2007 -0700

cpuidle: static

make cpuidle_replace_governor() static

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit c1d4a2cebcadf2429c0c72e1d29aa2a9684c32e0
Author: Adrian Bunk <bunk@xxxxxxxxx>
Date: Tue Jul 3 00:54:40 2007 -0400

cpuidle: static

This patch makes the needlessly global struct menu_governor static.

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit dbf8780c6e8d572c2c273da97ed1cca7608fd999
Author: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Date: Tue Jul 3 00:49:14 2007 -0400

export symbol tick_nohz_get_sleep_length

ERROR: "tick_nohz_get_sleep_length" [drivers/cpuidle/governors/menu.ko] undefined!
ERROR: "tick_nohz_get_idle_jiffies" [drivers/cpuidle/governors/menu.ko] undefined!

And please be sure to get your changes to core kernel suitably reviewed.

Cc: Adam Belay <abelay@xxxxxxxxxx>
Cc: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: john stultz <johnstul@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 29f0e248e7017be15f99febf9143a2cef00b2961
Author: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Date: Tue Jul 3 00:43:04 2007 -0400

tick.h needs hrtimer.h

It uses hrtimers.

Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit e40cede7d63a029e92712a3fe02faee60cc38fb4
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:40:34 2007 -0400

cpuidle: first round of documentation updates

Documentation changes based on Pavel's feedback.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 83b42be2efece386976507555c29e7773a0dfcd1
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:39:25 2007 -0400

cpuidle: add rating to the governors and pick the one with highest rating by default

Introduce a governor rating scheme to pick the right governor by default.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d2a74b8c5e8f22def4709330d4bfc4a29209b71c
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:38:08 2007 -0400

cpuidle: make cpuidle sysfs driver governor switch off by default

Make default cpuidle sysfs to show current_governor and current_driver in
read-only mode. More elaborate available_governors and available_drivers with
writeable current_governor and current_driver interface only appear with
"cpuidle_sysfs_switch" boot parameter.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 1f60a0e80bf83cf6b55c8845bbe5596ed8f6307b
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:37:00 2007 -0400

cpuidle: menu governor: change the early break condition

Change the C-state early break out algorithm in menu governor.

We only look at early breakouts that result in wakeups shorter than idle
state's target_residency. If such a breakout is frequent enough, eliminate
the particular idle state upto a timeout period.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 45a42095cf64b003b4a69be3ce7f434f97d7af51
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:35:38 2007 -0400

cpuidle: fix uninitialized variable in sysfs routine

Fix the uninitialized usage of ret.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 80dca7cdba3e6ee13eae277660873ab9584eb3be
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:34:16 2007 -0400

cpuidle: reenable /proc/acpi//power interface for the time being

Keep /proc/acpi/processor/CPU*/power around for a while as powertop depends
on it. It will be marked deprecated and removed in future. powertop can use
cpuidle interfaces instead.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 589c37c2646c5e3813a51255a5ee1159cb4c33fc
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Jul 3 00:32:37 2007 -0400

cpuidle: menu governor and hrtimer compile fix

Compile fix for menu governor.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 0ba80bd9ab3ed304cb4f19b722e4cc6740588b5e
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Thu May 31 22:51:43 2007 -0400

cpuidle: build fix - cpuidle vs ipw2100 module

ERROR: "acpi_set_cstate_limit" [drivers/net/wireless/ipw2100.ko] undefined!

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d7d8fa7f96a7f7682be7c6cc0cc53fa7a18c3b58
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Sat Mar 24 03:47:07 2007 -0400

cpuidle: add the 'menu' governor

Here is my first take at implementing an idle PM governor that takes
full advantage of NO_HZ. I call it the 'menu' governor because it
considers the full list of idle states before each entry.

I've kept the implementation fairly simple. It attempts to guess the
next residency time and then chooses a state that would meet at least
the break-even point between power savings and entry cost. To this end,
it selects the deepest idle state that satisfies the following
constraints:
1. If the idle time elapsed since bus master activity was detected
is below a threshold (currently 20 ms), then limit the selection
to C2-type or above.
2. Do not choose a state with a break-even residency that exceeds
the expected time remaining until the next timer interrupt.
3. Do not choose a state with a break-even residency that exceeds
the elapsed time between the last pair of break events,
excluding timer interrupts.

This governor has an advantage over "ladder" governor because it
proactively checks how much time remains until the next timer interrupt
using the tick infrastructure. Also, it handles device interrupt
activity more intelligently by not including timer interrupts in break
event calculations. Finally, it doesn't make policy decisions using the
number of state entries, which can have variable residency times (NO_HZ
makes these potentially very large), and instead only considers sleep
time deltas.

The menu governor can be selected during runtime using the cpuidle sysfs
interface like so:
"echo "menu" > /sys/devices/system/cpu/cpuidle/current_governor"

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit a4bec7e65aa3b7488b879d971651cc99a6c410fe
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Sat Mar 24 03:47:03 2007 -0400

cpuidle: export time until next timer interrupt using NO_HZ

Expose information about the time remaining until the next
timer interrupt expires by utilizing the dynticks infrastructure.
Also modify the main idle loop to allow dynticks to handle
non-interrupt break events (e.g. DMA). Finally, expose sleep ticks
information to external code. Thomas Gleixner is responsible for much
of the code in this patch. However, I've made some additional changes,
so I'm probably responsible if there are any bugs or oversights :)

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 2929d8996fbc77f41a5ff86bb67cdde3ca7d2d72
Author: Adam Belay <abelay@xxxxxxxxxx>
Date: Sat Mar 24 03:46:58 2007 -0400

cpuidle: governor API changes

This patch prepares cpuidle for the menu governor. It adds an optional
stage after idle state entry to give the governor an opportunity to
check why the state was exited. Also it makes sure the idle loop
returns after each state entry, allowing the appropriate dynticks code
to run.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 3a7fd42f9825c3b03e364ca59baa751bb350775f
Author: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Thu Apr 26 00:03:59 2007 -0700

cpuidle: hang fix

Prevent hang on x86-64, when ACPI processor driver is added as a module on
a system that does not support C-states.

x86-64 expects all idle handlers to enable interrupts before returning from
idle handler. This is due to enter_idle(), exit_idle() races. Make
cpuidle_idle_call() confirm to this when there is no pm_idle_old.

Also, cpuidle look at the return values of attch_driver() and set
current_driver to NULL if attach fails on all CPUs.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 4893339a142afbd5b7c01ffadfd53d14746e858e
Author: Shaohua Li <shaohua.li@xxxxxxxxx>
Date: Thu Apr 26 10:40:09 2007 +0800

cpuidle: add support for max_cstate limit

With CPUIDLE framework, the max_cstate (to limit max cpu c-state)
parameter is ingored. Some systems require it to ignore C2/C3
and some drivers like ipw require it too.

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 43bbbbe1cb998cbd2df656f55bb3bfe30f30e7d1
Author: Shaohua Li <shaohua.li@xxxxxxxxx>
Date: Thu Apr 26 10:40:13 2007 +0800

cpuidle: add cpuidle_fore_redetect_devices API

add cpuidle_force_redetect_devices API,
which forces all CPU redetect idle states.
Next patch will use it.

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d1edadd608f24836def5ec483d2edccfb37b1d19
Author: Shaohua Li <shaohua.li@xxxxxxxxx>
Date: Thu Apr 26 10:40:01 2007 +0800

cpuidle: fix sysfs related issue

Fix the cpuidle sysfs issue.
a. make kobject dynamicaly allocated
b. fixed sysfs init issue to avoid suspend/resume issue

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 7169a5cc0d67b263978859672e86c13c23a5570d
Author: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Date: Wed Mar 28 22:52:53 2007 -0400

cpuidle: 1-bit field must be unsigned

A 1-bit bitfield has no room for a sign bit.
drivers/cpuidle/governors/ladder.c:54:16: error: dubious bitfield without explicit `signed' or `unsigned'

Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 4658620158dc2fbd9e4bcb213c5b6fb5d05ba7d4
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Wed Mar 28 22:52:41 2007 -0400

cpuidle: fix boot hang

Patch for cpuidle boot hang reported by Larry Finger here.
http://www.ussg.iu.edu/hypermail/linux/kernel/0703.2/2025.html

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Cc: Larry Finger <larry.finger@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit c17e168aa6e5fe3851baaae8df2fbc1cf11443a9
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Wed Mar 7 04:37:53 2007 -0500

cpuidle: ladder does not depend on ACPI

build fix for CONFIG_ACPI=n

In file included from drivers/cpuidle/governors/ladder.c:21:
include/acpi/processor.h:88: error: expected specifier-qualifier-list before â??acpi_integerâ??
include/acpi/processor.h:106: error: expected specifier-qualifier-list before â??acpi_integerâ??
include/acpi/processor.h:168: error: expected specifier-qualifier-list before â??acpi_handleâ??

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8c91d958246bde68db0c3f0c57b535962ce861cb
Author: Adrian Bunk <bunk@xxxxxxxxx>
Date: Tue Mar 6 02:29:40 2007 -0800

cpuidle: make code static

This patch makes the following needlessly global code static:
- driver.c: __cpuidle_find_driver()
- governor.c: __cpuidle_find_governor()
- ladder.c: struct ladder_governor

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Cc: Adam Belay <abelay@xxxxxxxxxx>
Cc: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 0c39dc3187094c72c33ab65a64d2017b21f372d2
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Wed Mar 7 02:38:22 2007 -0500

cpu_idle: fix build break

This patch fixes a build breakage with !CONFIG_HOTPLUG_CPU and
CONFIG_CPU_IDLE.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8112e3b115659b07df340ef170515799c0105f82
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Tue Mar 6 02:29:39 2007 -0800

cpuidle: build fix for !CPU_IDLE

Fix the compile issues when CPU_IDLE is not configured.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Cc: Adam Belay <abelay@xxxxxxxxxx>
Cc: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 1eb4431e9599cd25e0d9872f3c2c8986821839dd
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Thu Feb 22 13:54:57 2007 -0800

cpuidle take2: Basic documentation for cpuidle

Documentation for cpuidle infrastructure

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit ef5f15a8b79123a047285ec2e3899108661df779
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Thu Feb 22 13:54:03 2007 -0800

cpuidle take2: Hookup ACPI C-states driver with cpuidle

Hookup ACPI C-states onto generic cpuidle infrastructure.

drivers/acpi/procesor_idle.c is now a ACPI C-states driver that registers as
a driver in cpuidle infrastructure and the policy part is removed from
drivers/acpi/processor_idle.c. We use governor in cpuidle instead.

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 987196fa82d4db52c407e8c9d5dec884ba602183
Author: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Date: Thu Feb 22 13:52:57 2007 -0800

cpuidle take2: Core cpuidle infrastructure

Announcing 'cpuidle', a new CPU power management infrastructure to manage
idle CPUs in a clean and efficient manner.
cpuidle separates out the drivers that can provide support for multiple types
of idle states and policy governors that decide on what idle state to use
at run time.
A cpuidle driver can support multiple idle states based on parameters like
varying power consumption, wakeup latency, etc (ACPI C-states for example).
A cpuidle governor can be usage model specific (laptop, server,
laptop on battery etc).
Main advantage of the infrastructure being, it allows independent development
of drivers and governors and allows for better CPU power management.

A huge thanks to Adam Belay and Shaohua Li who were part of this mini-project
since its beginning and are greatly responsible for this patchset.

This patch:

Core cpuidle infrastructure.
Introduces a new abstraction layer for cpuidle:
* which manages drivers that can support multiple idles states. Drivers
can be generic or particular to specific hardware/platform
* allows pluging in multiple policy governors that can take idle state policy
decision
* The core also has a set of sysfs interfaces with which administrato can know
about supported drivers and governors and switch them at run time.

Signed-off-by: Adam Belay <abelay@xxxxxxxxxx>
Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 32afbf07aa53120c0e3fe1881b948ded99f4fc35
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Mon Oct 8 10:12:56 2007 -0300

ACPI: thinkpad-acpi: skip blanks before the data when parsing sysfs

Skip blanks not just at the tail of sysfs writes, but also at the head.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d5b4a3d0efa36de31b86d5677dad6c36cb8735d7
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:44:06 2007 +0400

ACPI: AC: Add sysfs interface

Refer to Documentation/power_supply_class.txt for interface description.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8bd955320661cfd03ab8d5574d96aa684acd38f6
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:44:00 2007 +0400

ACPI: SBS: Add sysfs alarm

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 66e4b72bfa7347fd1017b9b82dce77a410f2e4a1
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:54 2007 +0400

ACPI: SBS: Add ACPI_PROCFS around procfs handling code.

Make procfs support optional under ACPI_PROCFS

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 94f6c0860139da9219255b8ff45ad42117dda859
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:48 2007 +0400

ACPI: SBS: Add support for power_supply class (and sysfs)

Add support for power_supply class and sysfs interface of it.
Refer to Documentation/power_supply_class.txt for interface description.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit db1c291af7ad748777371f25b9ff92e3e5aba38e
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:41 2007 +0400

ACPI: SBS: Make SBS reads table-driven.

Re-factor SBS functions to use tables and cycles for repeated operations.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 89862e3be1ba387c738fc2c3a5875cfd7e51c5a8
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:35 2007 +0400

ACPI: SBS: Simplify data structures in SBS

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 91087dfa51a29b3c190e99339c4c32eb13646c51
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:28 2007 +0400

ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)

Replace poll-based host controller driver with the notify-based one.
Split it out of sbs.c.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 30c08574da0ead1a47797ce028218ce5b2de61c7
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:22 2007 +0400

ACPI: EC: Add new query handler to list head.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8db85d4c9a0cc131242c80ef8456362d66561dc2
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:16 2007 +0400

ACPI: Add acpi_bus_generate_event4() function

acpi_bus_generate_event() takes two strings out of passed device object.
SBS needs to supply these strings directly.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 3e58ea0d31659b22ba5753f7abf3d7db346eab81
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:11 2007 +0400

ACPI: Battery: add sysfs alarm

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d7380965752505951668e85de59c128d1d6fd21f
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:43:04 2007 +0400

ACPI: Battery: Add sysfs support

Refer to Documentation/power_supply_class.txt for interface description.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit aa650bbdcb94bde4292eabc44490970825c98669
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:42:58 2007 +0400

ACPI: Battery: Misc clean-ups, no functional changes

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit f1d4661abe05d0a2c014166042d15ed8b69ae8f2
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:42:52 2007 +0400

ACPI: Battery: simplify update scheme

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 038fdea2960be53f82353fd409526fb77a558c52
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:42:46 2007 +0400

ACPI: Battery: don't use acpi_extract_package()

acpi_extract_package() creates more problems with memory management than
it solves as helper for package handling.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 9b039330808b83acac3597535da26f47ad1862ce
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 26 19:47:30 2007 +0400

ACPI: Hibernate erroneously disabled Suspend wakeup devices

S4 suspend to disk will disable GPE's permanently
because acpi_gpe_sleep_prepare() does not have
a counterpart at resume time. Thus, those devices
became unavailable for wakeup from subsequent
S3 suspend-to-ram.

Here acpi_gpe_sleep_prepare() is removed, and upon suspend
acpi_enable_wakeup_device() gets its functionality.
Upon resume, acpi_disable_wakeup_device() restores the state.

https://bugzilla.novell.com/show_bug.cgi?id=292300

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 2369cc9492a462285f9eec9d2bbfa730cc2ab5ac
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:07 2007 -0300

ACPI: thinkpad-acpi: duplicate driver attributes to new hwmon pdrv

Thinkpad-acpi has some driver attributes (debug level, sysfs interface
version, etc) that also belong to the new hwmon driver. Duplicate them
there.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 7fd400297978a2cf7a74344fb22020e9479b4f69
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Tue Sep 25 06:38:03 2007 -0300

ACPI: thinkpad-acpi: use a separate platform device for hwmon and name it (v2)

Use a separate platform device and driver ("thinkpad_hwmon") to attach
hwmon attributes and class, and add a name attribute of "thinkpad" to
it, which defines the hwmon device name for libsensors4.

This makes thinkpad-acpi compatible with libsensors4 from lm-sensors, and
the platform driver and device split will make it much easier to separate
hwmon functionality into its own module later on.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Cc: Jean Delvare <khali@xxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 3e5ce914bd17335ca74a7c7b06a776c6be6ca434
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:05 2007 -0300

ACPI: thinkpad-acpi: fix regression on HKEY LID event handling

We were letting ThinkPad-specific LID events through to userspace again,
instead of dropping them. Fix it. We don't want to give userspace the
option of not using generic LID handling.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 3eea123df1637a88d0899626a67b83dca959efff
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:04 2007 -0300

ACPI: thinkpad-acpi: dequeue all pending hot key events at once (v2.2)

Receive all pending HKEY events at once from a single notification, and don't
complain if the queue is empty.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 1b6521dc84f372dd92a96381fbeeebb01173d050
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:03 2007 -0300

ACPI: thinkpad-acpi: check version of hot key firmware

Check the HKEY firmware version (HKEY.MHKV handler), and refuse to load if
it is unknown. Use this instead of the presence of HKEY.DHKV to detect hot
key mask capability.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8fef502e5a14df05f1e755edc9175e01c9814080
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:02 2007 -0300

ACPI: thinkpad-acpi: keep track of module state

Keep track of module state (init, running, exit). This makes it trivially
easy to avoid running any interrupt handlers, threads, or any other async
activity before we are ready, or when we want to go away.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8523ed6fb2ca04973fe759fda8ab4af72492fc7e
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:01 2007 -0300

ACPI: thinkpad-acpi: add mutex-based locking to input device event send path

Protect the input device event sending path with a mutex, since hot key
input events are not atomic and require an cohesive event block to be sent
together.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit f4e1e43c607b5ead89b2135c348392810420de69
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:39:00 2007 -0300

ACPI: thinkpad-acpi: issue EV_SYNC after EV_SWITCH

We were missing a input_sync on the radio switch event report path. Add it.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 4b2fe7e2a79727104e549a89a32b4aae26521861
Author: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Date: Sun Sep 23 11:38:59 2007 -0300

ACPI: thinkpad-acpi: make room for more features in tp_features bitfield

Increase tp_features to 32 bits. It is too close to running out of room.

Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 03e2bf261e832abf48d40113ce08a70338dd18c9
Author: Andreas Herrmann <aherrman@xxxxxxxx>
Date: Mon Sep 17 23:41:05 2007 +0200

acpi_video: kernel build error if !INPUT

Commit e9dab1960ac9746fa34eff726b81635147615a79
(ACPI video hotkey: export missing ACPI video hotkey events via input layer)
exports ACPI video hotkey events via input layer. But this breaks kernel
build if ACPI_VIDEO && !INPUT:

LD .tmp_vmlinux1
drivers/built-in.o: In function `acpi_video_bus_remove':
drivers/acpi/video.c:2007: undefined reference to `input_unregister_device'
...

Signed-off-by: Andreas Herrmann <aherrman@xxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 8a66074c379cacc79168681bf7dea37ad278f5d1
Author: Andreas Herrmann <aherrman@xxxxxxxx>
Date: Mon Sep 17 22:54:34 2007 +0200

sony-laptop/thinkpad-acpi: fix INPUT=n build

Build errors if CONFIG_SONY_LAPTOP && !INPUT or
if CONFIG_THINKPAD_ACPI && !INPUT:

LD vmlinux
...
drivers/built-in.o: In function `sony_laptop_remove_input':
sony-laptop.c:(.text+0x768fb): undefined reference to `input_unregister_device'
...
drivers/built-in.o: In function `thinkpad_acpi_module_exit':
thinkpad_acpi.c:(.text+0x78c1b): undefined reference to `input_free_device'
...

Signed-off-by: Andreas Herrmann <aherrman@xxxxxxxx>
Acked-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Acked-by: Mattia Dongili <malattia@xxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 4c611060660f0de3e9b8f02df207312bc6f5c331
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Wed Sep 5 19:56:38 2007 -0400

ACPI: EC: Drop ECDT-based boot_ec as soon as we find DSDT-based one.

ASUS notebooks have numerous problems with EC initialization
This patch tries to work around three known issues reported
in bugzilla 8598, 8709 and 8909/8919.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 63f0edfc0b7f8058f9d3f9b572615ec97ae011ba
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Mon Sep 3 16:30:08 2007 +0400

ACPI: VIDEO: Adjust current level to closest available one.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 4500ca8e221e72cc38e7c239b9b1a041031ee450
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Mon Sep 3 16:29:58 2007 +0400

ACPI: video: Don't call absent methods

Signed-off-by: Ryan May <rmay@xxxxxx>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 6e2157858ac94530fddbf19dc59ab6b392baf1f3
Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Date: Sat Sep 1 00:11:59 2007 +0400

ACPI: Thermal: Drop concurrent thermal checks

Fix for #3686, where get_temperature() may cause thermal notify, which
causes one more get_temperature().

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit 21bc42ab852549f4a547d18d77e0e4d1b24ffd96
Author: Len Brown <len.brown@xxxxxxxxx>
Date: Tue Sep 4 12:49:22 2007 -0400

ACPI: thermal: use round_jiffies when thermal zone polling is enabled

Properly functioning systems do not use thermal zone polling,
they use event-based notification.

However, some users enable periodic thermal zone polling
to work around bugs on their platforms, and at least one
platform exists with a real _TZP that requests polling.

While thermal zone polling (_TZP) is specified in units to 0.1 seconds,
it actually has a maximum granularity of 1 second. Thus, we can safely
round up the _TZP timeout to occur on the next 1-second boundary.
This will batch it with other 1-second-granularity timers in the
system and thus potentially extend processor idle duration.

Note that the same timer is used both for _TZP
and for passive processor thermal throttling.
We can not round up the timeout when it is used
for passive thermal throttling.

Also, we can not make this a deferrable timer,
as temperature is just as relevant during idle
as it is during non-idle.

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit d0482533c73a8685f7ce0951a10280cfd58b8825
Author: Jonathan Woithe <jwoithe@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Wed Aug 29 15:58:19 2007 +0930

fujitsu-laptop: create Fujitsu laptop platform specific driver

Signed-off-by: Jonathan Woithe <jwoithe@xxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

commit fd1caaed466de2ee100e250b6c755376eda7ba3b
Author: Mattia Dongili <malattia@xxxxxxxx>
Date: Sun Aug 12 16:20:28 2007 +0900

sony-laptop: old Vaio models contain 2 IO port entries

Make the driver aware of this case and manage the existence of a
second separate IO port.

Signed-off-by: Mattia Dongili <malattia@xxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
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