Commit graph

140615 commits

Author SHA1 Message Date
Len Brown
478c6a43fc Merge branch 'linus' into release
Conflicts:
	arch/x86/kernel/cpu/cpufreq/longhaul.c

Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05 02:14:15 -04:00
Len Brown
8a3f257c70 Merge branch 'misc' into release 2009-04-05 01:52:07 -04:00
Len Brown
33526a5360 Merge branch 'x2apic' into release 2009-04-05 01:51:51 -04:00
Len Brown
47ae106d3f Merge branch 'pnpacpi' into release 2009-04-05 01:51:38 -04:00
Len Brown
2e33b234ab Merge branch 'dell-wmi' into release 2009-04-05 01:51:22 -04:00
Len Brown
e2fae0abf6 Merge branch 'constify' into release 2009-04-05 01:51:16 -04:00
Len Brown
fff251f6b2 Merge branches 'bugzilla-12461' and 'bugzilla-9998' into release 2009-04-05 01:51:10 -04:00
Len Brown
3b4dadf05d Merge branch 'acpi_enforce_resources' into release 2009-04-05 01:50:46 -04:00
Len Brown
59b17bf6ea Merge branch 'async-battery' into release
Conflicts:
	drivers/acpi/Makefile

Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05 01:48:46 -04:00
Len Brown
edd84690d1 Merge branch 'acpi-modparam' into release
Conflicts:
	drivers/acpi/Makefile

Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05 01:45:50 -04:00
Len Brown
7c27fd19b6 Merge branch 'sony-laptop' into release 2009-04-05 01:42:14 -04:00
Len Brown
336d63b8a3 Merge branch 'thinkpad-acpi' into release 2009-04-05 01:42:09 -04:00
Len Brown
07290bed79 Merge branch 'acer' into release 2009-04-05 01:42:03 -04:00
Len Brown
1264881050 Merge branch 'video' into release
Conflicts:
	drivers/acpi/video.c

Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05 01:40:06 -04:00
Len Brown
7329e9356e Merge branch 'psd' into release 2009-04-05 01:39:33 -04:00
Len Brown
3266d63c06 Merge branch 'battery' into release 2009-04-05 01:39:26 -04:00
Len Brown
4926a23639 Merge branch 'hp-wmi' into release 2009-04-05 01:39:20 -04:00
Len Brown
4f3bff70a6 Merge branch 'thermal' into release 2009-04-05 01:39:12 -04:00
Len Brown
2ddb9f17ba Merge branch 'pmtimer-overflow' into release 2009-04-05 01:39:07 -04:00
Len Brown
a3b2c5e413 Merge branch 'dynamic-ssdt' into release 2009-04-05 01:39:00 -04:00
Len Brown
4938370096 Merge branch 'driver-ops-cleanup' into release 2009-04-05 01:38:51 -04:00
Len Brown
e857b33d18 Merge branch 'bjorn-cleanups' into release 2009-04-05 01:38:42 -04:00
Len Brown
9a38f4eec5 Merge branch 'bjorn-initcall-cleanup' into release 2009-04-05 01:38:31 -04:00
Johannes Berg
15065531c1 toshiba-acpi: remove MAINTAINERS entry
"I'm not much opposed to marking this driver orphaned.  I haven't used
a Toshiba laptop in four years or so, and disagree with the recent
additions of bluetooth and wireless control to the driver.

--John"

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: John Belmonte <john@neggie.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05 01:11:52 -04:00
Arjan van de Ven
0f66af5301 ACPI: battery: asynchronous init
The battery driver tends to take quite some time to initialize
(100ms-300ms is quite typical).
This patch initializes the batter driver asynchronously, so that other
things in the kernel can initialize in parallel to this 300 msec.

As part of this, the battery driver had to move to the back
of the ACPI init order (hence the Makefile change).
Without this move, the next ACPI driver would just block
on the ACPI/devicee layer semaphores until the battery driver was
done anyway, not gaining any boot time.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 12:51:17 -04:00
Carlos Corbacho
4f0175dc13 acer-wmi: Update copyright notice & documentation
Explicitly note in the documentation that the Acer Aspire One is not
supported.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 12:36:31 -04:00
Andy Whitcroft
350e32907c acer-wmi: Cleanup the failure cleanup handling
Cleanup the failure cleanup handling for brightness and email led.

[cc: Split out from another patch]

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 12:36:21 -04:00
Carlos Corbacho
a74dd5fdab acer-wmi: Blacklist Acer Aspire One
The Aspire One's ACPI-WMI interface is a placeholder that does nothing,
and the invalid results that we get from it are now causing userspace
problems as acer-wmi always returns that the rfkill is enabled (i.e. the
radio is off, when it isn't). As it's hardware controlled, acer-wmi
isn't needed on the Aspire One either.

Thanks to Andy Whitcroft at Canonical for tracking down Ubuntu's userspace
issues to this.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Reported-by: Andy Whitcroft <apw@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 12:36:06 -04:00
Len Brown
c07c9a78a9 video: build fix
acpi_video_device_write_state() and friends now return ssize_t,
while the constify patch assumed it was still int.

Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:33:45 -04:00
Henrique de Moraes Holschuh
0e501834f8 thinkpad-acpi: rework brightness support
Refactor and redesign the brightness control backend...

In order to fix bugzilla #11750...

Add a new brightness control mode: support direct NVRAM checkpointing
of the backlight level (i.e. store directly to NVRAM without the need
for UCMS calls), and use that together with the EC-based control.
Disallow UCMS+EC, thus avoiding races with the SMM firmware.

Switch the models that define HBRV (EC Brightness Value) in the DSDT
to the new mode.  These are: T40-T43, R50-R52, R50e, R51e, X31-X41.

Change the default for all other IBM ThinkPads to UCMS-only.  The
Lenovo models already default to UCMS-only.

Reported-by: Alexey Fisher <bug-track@fisher-privat.net>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:53 -04:00
Henrique de Moraes Holschuh
74a60c0f82 thinkpad-acpi: enhanced debugging messages for the fan subdriver
Enhance debugging messages for the fan subdriver.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:53 -04:00
Henrique de Moraes Holschuh
56e2c20094 thinkpad-acpi: enhanced debugging messages for the hotkey subdriver
Enhance debugging messages for the hotkey subdriver.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:53 -04:00
Henrique de Moraes Holschuh
bee4cd9b9e thinkpad-acpi: enhanced debugging messages for rfkill subdrivers
Enhance debugging messages for all rfkill subdrivers in thinkpad-acpi.

Also, log a warning if the deprecated sysfs attributes are in use.
These attributes are going to be removed sometime in 2010.

There is an user-visible side-effect: we now coalesce attempts to
enable/disable bluetooth or WWAN in the procfs interface, instead of
hammering the firmware with multiple requests.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:53 -04:00
Henrique de Moraes Holschuh
a4d5effcc7 thinkpad-acpi: restrict access to some firmware LEDs
Some of the ThinkPad LEDs indicate critical conditions that can cause
data loss or cause hardware damage when ignored (e.g. force-ejecting
a powered up bay; ignoring a failing battery, or empty battery; force-
undocking with the dock buses still active, etc).

On almost all ThinkPads, LED access is write-only, and the firmware
usually does fire-and-forget signaling on them, so you effectively
lose whatever message the firmware was trying to convey to the user
when you override the LED state, without any chance to restore it.

Restrict access to all LEDs that can convey important alarms, or that
could mislead the user into incorrectly operating the hardware.  This
will make the Lenovo engineers less unhappy about the whole issue.

Allow users that really want it to still control all LEDs, it is the
unaware user that we have to worry about.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
2586d5663d thinkpad-acpi: remove HKEY disable functionality
The HKEY disable functionality basically cripples the entire event
model of the ThinkPad firmware and of the thinkpad-acpi driver.
Remove this functionality from the driver.  HKEY must be enabled at
all times while thinkpad-acpi is loaded, and disabled otherwise.

For sysfs, according to the sysfs ABI and the thinkpad-acpi sysfs
rules of engagement, we will just remove the attributes.  This will be
done in two stages: disable their function now, after two kernel
releases, remove the attributes.

For procfs, we call WARN().  If nothing triggers it, I will simply
remove the enable/disable commands entirely in the future along with
the sysfs attributes.

I don't expect much, if any fallout from this.  There really isn't any
reason to mess with hotkey_enable or with the enable/disable commands
to /proc/acpi/ibm/hotkey, and this has been true for years...

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
73a94d86a8 thinkpad-acpi: add new debug helpers and warn of deprecated atts
Add a debug helper that discloses the TGID of the userspace task
attempting to access the driver.  This is highly useful when dealing
with bug reports, since often the user has no idea that some userspace
application is accessing thinkpad-acpi...

Also add a helper to log warnings about sysfs attributes that are
deprecated.

Use the new helpers to issue deprecation warnings for bluetooth_enable
and wwan_enabled, that have been deprecated for a while, now.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
7ff8d62f7f thinkpad-acpi: add missing log levels
Add missing log levels in a standalone commit, to avoid dependencies in
future unrelated changes, just because they wanted to use one of the
missing log levels.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
3dcc2c3b00 thinkpad-acpi: cleanup debug helpers
Fix the vdbg_printk macro definition to be sane when
CONFIG_THINKPAD_ACPI_DEBUG is undefined, and move the mess into a file
section of its own.

This doesn't change anything in the current code, but future code will
need the proper behaviour.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
078ac19ed8 thinkpad-acpi: documentation cleanup
Some cleanups to the documentation of the driver.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
257bc1cb3e thinkpad-acpi: drop ibm-acpi alias
The driver was renamed two years ago, on 2.6.21.  Drop the old
compatibility alias, we have given everybody quite enough time
to update their configs to the new name.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:52 -04:00
Henrique de Moraes Holschuh
1c762ca438 thinkpad-acpi: update copyright notices
It is that time of the year again...

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04 03:14:51 -04:00
Harald Welte
ba256b41bd panasonic-laptop: use snprintf with PAGE_SIZE in sysfs attributes
Instead of just sprintf() into the page-sized buffer provided
by the sysfs/device_attribute API, we use snprintf with PAGE_SIZE
as an additional safeguard.

Signed-off-by: Martin Lucina <mato@kotelna.sk>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 23:43:02 -04:00
Harald Welte
c542aadeb4 panasonic-laptop: Fix autoloading
This patch adds MODULE_DEVICE_TABLE() to panasonic-laptop.c in order
to ensure automatic loading of the module on systems with the respective
"MAT*" ACPI devices.

Signed-off-by: Martin Lucina <mato@kotelna.sk>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 23:42:33 -04:00
Jan Engelhardt
b7171ae74b ACPI: constify VFTs (2/2)
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 23:15:07 -04:00
Jan Engelhardt
070d8eb1f6 ACPI: constify VFTs (1/2)
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 23:14:40 -04:00
Matthew Garrett
0b3f6109f0 dell-wmi: new driver for hotkey control
Add a WMI driver for Dell laptops. Currently it does nothing but send a
generic input event when a button with a picture of a battery on it is
pressed, but maybe other uses will appear over time.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 22:54:50 -04:00
Jan Beulich
609d4bc949 ACPI: constify tables in pci_irq.c
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 22:00:40 -04:00
Witold Szczeponik
6328a57401 Enable PNPACPI _PSx Support, v3
(This is an update to the patch presented earlier in
http://lkml.org/lkml/2008/12/8/284, with new error handling.)

This patch sets the power of PnP ACPI devices to D0 when they
are activated and to D3 when they are disabled.  The latter is
in correspondence with the ACPI 3.0 specification, whereas the
former is added in order to be able to power up a device after
it has been previously disabled (or when booting up a system).
(As a consequence, the patch makes the PnP ACPI code more ACPI
compliant.)

Section 6.2.2 of the ACPI Specification (at least versions 1.0b
and 3.0a) states: "Prior to running this control method [_DIS],
the OS[PM] will have already put the device in the D3 state."
Unfortunately, there is no clear statement as to when to put
a device in the D0 state. :-( Therefore, the patch executes the
method calls as _PS3/_DIS and _SRS/_PS0. What is clear: "If the
device is disabled, _SRS enables the device at the specified
resources." (From the ACPI 3.0a Specification.)

The patch fixes a problem with some IBM ThinkPads (at least the
600E and the 600X) where the serial ports have a dedicated
power source that needs to be brought up before the serial port
can be used.  Without this patch, the serial port is enabled
but has no power. (In the past, the tpctl utility had to be
utilized to turn on the power, but support for this feature
stopped with version 5.9 as it did not support the more recent
kernel versions.)

The error handlers that handle any errors that can occur during
the power up/power down phases return the error codes to the
caller directly.  Comments welcome! :-)

No regressions were observed on hardware that does not require
this patch.

The patch is applied against 2.6.27.x.

Signed-off-by: Witold Szczeponik <Witold.Szczeponik@gmx.net>
Acked-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 21:44:10 -04:00
Linus Torvalds
6bb597507f Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, mtrr: remove debug message
  x86: disable stack-protector for __restore_processor_state()
  x86: fix is_io_mapping_possible() build warning on i386 allnoconfig
  x86, setup: compile with -DDISABLE_BRANCH_PROFILING
  x86/dma: unify definition of pci_unmap_addr* and pci_unmap_len macros
  x86, mm: fix misuse of debug_kmap_atomic
  x86: remove duplicated code with pcpu_need_numa()
  x86,percpu: fix inverted NUMA test in setup_pcpu_remap()
  x86: signal: check sas_ss_size instead of sas_ss_flags()
2009-04-03 17:36:21 -07:00
Linus Torvalds
09f38dc19d Merge branch 'core-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ptrace: remove a useless goto
2009-04-03 17:35:06 -07:00