ACPI patches for 2.6.25-rc1

Hi Linus,

please pull from:

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

This batch...
fixes two suspend regressions
tidies up the recently updated cpuidle code, including adding documentation. and some other fluff.

This will update the files shown below.

thanks!

-Len

ps. individual patches are available on [email protected]
and a consolidated plain patch is available here:
ftp://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2.6.25/acpi-release-20070126-2.6.25-rc1.diff.gz

 Documentation/00-INDEX             |    2 +
 Documentation/cpuidle/core.txt     |   23 ++++++++++
 Documentation/cpuidle/driver.txt   |   31 ++++++++++++++
 Documentation/cpuidle/governor.txt |   29 +++++++++++++
 Documentation/cpuidle/sysfs.txt    |   79 ++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/acpi/cstate.c      |    2 +
 drivers/acpi/blacklist.c           |   64 +++++++++++++++++++++++++----
 drivers/acpi/event.c               |    2 +-
 drivers/acpi/hardware/hwsleep.c    |    1 +
 drivers/acpi/osl.c                 |    6 +-
 drivers/acpi/processor_idle.c      |   19 +++++++++
 drivers/cpuidle/cpuidle.c          |    3 +-
 drivers/cpuidle/sysfs.c            |   14 +++++-
 drivers/misc/thinkpad_acpi.c       |    4 +-
 drivers/pnp/pnpacpi/core.c         |    2 +-
 include/acpi/processor.h           |    9 +++-
 include/linux/acpi.h               |    1 +
 include/linux/cpuidle.h            |    2 +
 18 files changed, 271 insertions(+), 22 deletions(-)
 create mode 100644 Documentation/cpuidle/core.txt
 create mode 100644 Documentation/cpuidle/driver.txt
 create mode 100644 Documentation/cpuidle/governor.txt
 create mode 100644 Documentation/cpuidle/sysfs.txt

through these commits:

Adrian Bunk (4):
thinkpad_acpi: static
ACPI: static acpi_no_initrd_override_setup()
ACPI: static acpi_find_dsdt_initrd()
ACPI: static acpi_chain_head

Len Brown (2):
ACPI: DMI blacklist updates
ACPI: DMI: quirk for FSC ESPRIMO Mobile V5505

Rafael J. Wysocki (1):
ACPI suspend: Execute _WAK with the right argument

Roel Kluin (1):
pnpacpi: __initdata is not an identifier

Venkatesh Pallipadi (3):
ACPI: fix suspend regression due to idle update ACPI, cpuidle: Clarify C-state description in sysfs
cpuidle: Add Documentation

with this log:

commit f60d63f642d824914677fb40330671117dc39c3b
Merge: 46c1fbd... fe8e288... 6bf69b5...
Author: Len Brown <[email protected]>
Date: Thu Feb 14 02:44:28 2008 -0500

Merge branches 'release', 'dmi', 'idle' and 'misc' into release

commit 46c1fbdb7191bf07979d7cd5f08d1a86458181a2

Author: Len Brown <[email protected]>
Date:   Wed Feb 13 23:13:25 2008 -0500

ACPI: DMI: quirk for FSC ESPRIMO Mobile V5505

http://bugzilla.kernel.org/show_bug.cgi?id=9939

commit bb54675b9b2f968f07e29b6c23b8dc90bad59723

Author: Len Brown <[email protected]>
Date:   Sun Feb 10 21:29:56 2008 -0500

ACPI: DMI blacklist updates

Acer Extensa 5220 -- OSI(Linux) is a NOP
Dell OptiPlex 755 -- OSI(Linux) turns GUSB into a NOP Dell PowerEdge 1950 -- OSI(Linux) is a NOP
Dell Precision 690 -- OSI(Linux) touches USB (skips GUSB) FSC ESPRIMO Mobile V5505 -- OSI(Linux) is a NOP Lenovo LENOVO3000 V100 -- OSI(Linux) is a NOP Lenovo X61x -- OSI(Linux) enables Linux specific AML Sony Vaio VGN-NR11S_S - OSI(Linux) is a NOP

commit 6bf69b5ebf22f8f5b4551bad688979fe29049126

Author: Roel Kluin <[email protected]>
Date:   Mon Feb 11 16:05:35 2008 +0100

pnpacpi: __initdata is not an identifier

sparse complains at drivers/pnp/pnpacpi/core.c:39 with the error:
Trying to use reserved word '__attribute__' as identifier Expected ) in function declarator, got ".init.data"

and at drivers/pnp/pnpacpi/core.c:49:38 with the error:
undefined identifier 'excluded_id_list'

With the patch below these sparse complaints do not occur

commit c8e773fa4f6a999a80d9fa3836f412e259ab6fa1

Author: Adrian Bunk <[email protected]>
Date:   Wed Feb 13 23:29:57 2008 +0200

ACPI: static acpi_chain_head

commit adba2a876c1c971980f9bb3c6c8e20c61490647b

Author: Adrian Bunk <[email protected]>
Date:   Wed Feb 13 23:29:58 2008 +0200

ACPI: static acpi_find_dsdt_initrd()

commit bfaed45e30f19bb4cee779f3229d2744bc2b2c46

Author: Adrian Bunk <[email protected]>
Date:   Wed Feb 13 23:30:00 2008 +0200

ACPI: static acpi_no_initrd_override_setup()

commit 1d5a2b54f39cab8ab8bee5290798ea6516c4a68c

Author: Adrian Bunk <[email protected]>
Date:   Wed Feb 13 23:30:06 2008 +0200

thinkpad_acpi: static

commit 314ccd644cc14b9ebc1996afbabfb4d108004fd0

Author: Rafael J. Wysocki <[email protected]>
Date:   Wed Feb 13 00:32:16 2008 +0100

ACPI suspend: Execute _WAK with the right argument

The _WAK global ACPI control method has to be called with the argument representing the sleep state being exited. Make it happen.

Special thanks to Mirco Tischler <[email protected]> for reporting the problem and debugging.

commit fe8e288a63f2f3c51c288500282d0eb5cd26a534

Author: Venkatesh Pallipadi <[email protected]>
Date:   Thu Feb 14 00:16:13 2008 -0500

cpuidle: Add Documentation

Documentation for cpuidle infrastructure. (resend)

commit 4fcb2fcd4d0678b8ae103d257dcb28074cbfc7fa

Author: Venkatesh Pallipadi <[email protected]>
Date:   Mon Feb 11 17:46:31 2008 -0800

ACPI, cpuidle: Clarify C-state description in sysfs

Add a new sysfs entry under cpuidle states. desc - can be used by driver to communicate to userspace any specific information about the state. This helps in identifying the exact hardware C-states behind the ACPI C-state definition.

Idea is to export this through powertop, which will help to map the C-state reported by powertop to actual hardware C-state.

commit b077fbada161479d9a32a7730d2822d5e737b306

Author: Venkatesh Pallipadi <[email protected]>
Date:   Mon Feb 11 15:20:27 2008 -0800

ACPI: fix suspend regression due to idle update

Earlier patch (bc71bec91f9875ef825d12104acf3bf4ca215fa4) broke suspend resume on many laptops. The problem was reported by Carlos R. Mafra and Calvin Walton, who bisected the issue to above patch.

The problem was because, C2 and C3 code were calling acpi_idle_enter_c1 directly, with C2 or C3 as state parameter, while suspend/resume was in progress. The patch bc71bec started making use of that state information, assuming that it would always be referring to C1 state. This caused the problem with suspend-resume as we ended up using C2/C3 state indirectly.

Fix this by adding acpi_idle_suspend check in enter_c1.