Commit Graph

1706 Commits

Author SHA1 Message Date
Linus Torvalds
765426e8ee 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: (123 commits)
  dock: make dock driver not a module
  ACPI: fix ia64 build warning
  ACPI: hack around sysfs warning with link order
  ACPI suspend: fix build warning when CONFIG_ACPI_SLEEP=n
  intel_menlo: fix build warning
  panasonic-laptop: fix build
  ACPICA: Update version to 20080926
  ACPICA: Add support for zero-length buffer-to-string conversions
  ACPICA: New: Validation for predefined ACPI methods/objects
  ACPICA: Fix for implicit return compatibility
  ACPICA: Fixed a couple memory leaks associated with "implicit return"
  ACPICA: Optimize buffer allocation procedure
  ACPICA: Fix possible memory leak, error exit path
  ACPICA: Fix fault after mem allocation failure in AML parser
  ACPICA: Remove unused ACPI register bit definition
  ACPICA: Update version to 20080829
  ACPICA: Fix possible memory leak in acpi_ns_get_external_pathname
  ACPICA: Cleanup for internal Reference Object
  ACPICA: Update comments - no functional changes
  ACPICA: Update for Reference ACPI_OPERAND_OBJECT
  ...
2008-10-23 10:20:36 -07:00
Shaohua Li
898b054f3e dock: make dock driver not a module
To avoid dock driver is loaded after other drivers like libata, let's
make dock driver not a module.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23 04:00:47 -04:00
Zhao Yakui
5eaff72218 ACPI: hack around sysfs warning with link order
There exists the following warning message will appear after the
following commit is merged.
   >commit f2e969acd6d5981e6b1272810002558650d0736e
   >Author: Zhao Yakui <yakui.zhao@intel.com>
   >Date:   Mon Aug 11 14:57:50 2008 +0800
    >ACPI: Add "acpi.power_nocheck=1" to disable power state check in
power transition:

   >WARNING: at linux-2.6/fs/sysfs/dir.c:463  sysfs_add_one+0x33/0x39()
   >sysfs: duplicate filename 'acpi' can not be created
   >kobject_add_internal failed for acpi with -EEXIST, don't try to register
            things with the same name in the same directory

   In the above commit the "acpi.power_nocheck" module parameter is defined
in drivers/acpi/power.c file. As several module parameters using the same ACPI
prefix are defined in the different files(for example: power_nocheck is
defined in drivers/acpi/power.c,debug_layer/debug_level are defined in
drivers/acpi/debug.c) and there exists another module between them, the
warning message will be printed when using the current generic param code.
(In the function of param_sysfs_init).

   In fact when ACPI is selected, the drivers/acpi/power will also be compiled
as built-in kernel.So this issue can be fixed by the following approach.
   workaround it by adjusting the module link order in drivers/acpi/Makefile.
In such case the module parameter using the same prefix(ACPI) are put together
in the param data section.

   Of course the better solution is to fix it in generic param code related
with sysfs.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23 00:47:54 -04:00
Len Brown
b849075c0e ACPI suspend: fix build warning when CONFIG_ACPI_SLEEP=n
drivers/acpi/sleep/main.c:27: warning: ‘acpi_target_sleep_state’ defined but not used

Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23 00:45:18 -04:00
Len Brown
057316cc6a Merge branch 'linus' into test
Conflicts:
	MAINTAINERS
	arch/x86/kernel/acpi/boot.c
	arch/x86/kernel/acpi/sleep.c
	drivers/acpi/Kconfig
	drivers/pnp/Makefile
	drivers/pnp/quirks.c

Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23 00:11:07 -04:00
Len Brown
7674416db4 Merge branch 'ull' into test
Conflicts:
	drivers/acpi/bay.c
	drivers/acpi/dock.c
	drivers/ata/libata-acpi.c

Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:33:29 -04:00
Len Brown
acd41d36e5 Merge branch 'suspend' into test 2008-10-22 23:28:46 -04:00
Len Brown
5f50ef453d Merge branch 'misc' into test 2008-10-22 23:28:38 -04:00
Len Brown
b815d7b325 Merge branch 'fadt-test' into test 2008-10-22 23:28:03 -04:00
Len Brown
0fbb3726f2 Merge branch 'ec' into test 2008-10-22 23:27:59 -04:00
Len Brown
47bf31adc5 Merge branch 'dock' into test
Conflicts:
	drivers/acpi/osl.c

Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:25:26 -04:00
Len Brown
4538fad56e Merge branch 'cpuidle' into test 2008-10-22 23:20:05 -04:00
Len Brown
ebd7e45f6d Merge branch 'bugzilla-11481' into test 2008-10-22 23:20:02 -04:00
Len Brown
462af435b3 Merge branch 'bugzilla-10503' into test 2008-10-22 23:20:01 -04:00
Len Brown
63e065e5d3 Merge branch 'bugzilla-10237' into test 2008-10-22 23:19:59 -04:00
Len Brown
2285bc3d3d Merge branch 'asus-cleanup' into test 2008-10-22 23:19:57 -04:00
Len Brown
bcb631f318 Merge branch 'acpica' into test 2008-10-22 23:19:51 -04:00
Len Brown
955ba39561 Merge branch 'bugfixes' into test 2008-10-22 23:19:50 -04:00
Len Brown
aa58329fc8 Merge branch 'acer-wmi' into test 2008-10-22 23:19:47 -04:00
Len Brown
6b3c4f8b9c Merge branch 'FW_BUG' into test 2008-10-22 23:19:45 -04:00
Bob Moore
4ca846e927 ACPICA: Add support for zero-length buffer-to-string conversions
Allow zero length strings during interpreter buffer-to-string
conversions. For example, during the ToDecimalString and
ToHexString operaters, as well as implicit conversions. Fiodor
Suietov.  ACPICA BZ 585.

http://www.acpica.org/bugzilla/show_bug.cgi?id=585

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:50 -04:00
Bob Moore
e8707b340f ACPICA: New: Validation for predefined ACPI methods/objects
Validates predefined ACPI objects that appear in the namespace,
at the time they are evaluated. The argument count and the type of
the returned object are validated. The purpose of this validation
is to detect problems with the BIOS-exposed predefined ACPI objects
before the results are returned to the ACPI-related drivers.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:49 -04:00
Lin Ming
b9d1312ad4 ACPICA: Fix for implicit return compatibility
Predicate can be used for an implicit return value.
This change improves the implicit return mechanism to be more
compatible with the MS interpreter.

http://www.acpica.org/bugzilla/show_bug.cgi?id=349

Below AML code from http://bugzilla.kernel.org/show_bug.cgi?id=10686

	Store(0x07D6, OSYS)
	Method (_CRT, 0, Serialized)
	{
	    If (LLess (OSYS, 0x07D6))
	    {
		If (LEqual (\_SB.TJ85, Zero))
		{
		    Return (Add (0x0AAC, Multiply (TPC, 0x0A)))
		}
		Else
		{
		    Return (Add (0x0AAC, Multiply (TP85, 0x0A)))
		}
	    }
	}

Previously _CRT returns 0x07D6, now it returns 0 (predicate value of LLess)

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:49 -04:00
Lin Ming
d8a0ec914a ACPICA: Fixed a couple memory leaks associated with "implicit return"
Fixed a couple memory leaks associated with "implicit return" objects
when the AML Interpreter slack mode is enabled.

http://www.acpica.org/bugzilla/show_bug.cgi?id=349

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:48 -04:00
Bob Moore
68e125c405 ACPICA: Optimize buffer allocation procedure
Eliminate duplicate code.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:48 -04:00
Lin Ming
cf058bd1c8 ACPICA: Fix possible memory leak, error exit path
Fixed two possible memory leaks in the error exit paths of
acpi_ut_update_objerct_reference() and
acpi_ut_walk_package_tree()
These functions are similar in that they use a stack of state objects in
order to eliminate recursion. The stack must be fully deallocated
if an error occurs.

http://www.acpica.org/bugzilla/show_bug.cgi?id=383

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:47 -04:00
Lin Ming
c35def2118 ACPICA: Fix fault after mem allocation failure in AML parser
Fixes a crash if a memory allocation fails during the Op completion
routine acpi_ps_complete_this_op().

http://www.acpica.org/bugzilla/show_bug.cgi?id=492

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:47 -04:00
Lin Ming
bbbbeb8e31 ACPICA: Remove unused ACPI register bit definition
Removed the ACPI_BITREG_WAKE_ENABLE definition and entry in the
global register table. This bit does not exist and is unused.

http://www.acpica.org/bugzilla/show_bug.cgi?id=442

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:46 -04:00
Bob Moore
393a75d6b7 ACPICA: Fix possible memory leak in acpi_ns_get_external_pathname
Fixes a memory leak in the error exit path.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:45 -04:00
Bob Moore
1044f1f65b ACPICA: Cleanup for internal Reference Object
Fix some sloppiness in the Reference object. No longer use AML
opcodes to differentiate the types, introduce new reference
Class. Cleanup the debug output code.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:45 -04:00
Bob Moore
2425a0967f ACPICA: Update comments - no functional changes
Some formatting and spelling fixes.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:45 -04:00
Bob Moore
57e664cfd9 ACPICA: Update for Reference ACPI_OPERAND_OBJECT
1) Add new field for use by DdbHandle (Value)
2) Use ACPI_CAST_INDIRECT_PTR to eliminate strict type warnings
3) Cleanup debug output

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:44 -04:00
Lin Ming
93851b4d13 ACPICA: Reduce error to warning for incorrect method arg count
Previously aborted with error if too few arguments were passed to
a control method via the external ACPICA interface. Now issue a
warning instead and continue. Handles the case where the method
inadvertently declares too many arguments, but does not actually
use the extra ones.  Applies mainly to the predefined methods.

http://bugzilla.kernel.org/show_bug.cgi?id=11032

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:44 -04:00
Bob Moore
b68bacf225 ACPICA: Disallow evaluation of named object types with no value
Return AE_TYPE for objects that have no value and therefore
evaluation is undefined: Device, Event, Mutex, Region, Thermal,
and Scope.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:43 -04:00
Bob Moore
23d3e055be ACPICA: Remove obsolete debug levels (WARN and ERROR)
Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were
made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION
interfaces.  Also added ACPI_DB_EVENTS to correspond with the
existing ACPI_LV_EVENTS.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:42 -04:00
Lin Ming
55ac9a018f ACPI: replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk
ACPI_DB_ERROR and ACPI_DB_WARN were removed from ACPICA core.
So replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk(KERN_ERR PREFIX ...)
and ACPI_DEBUG_PRINT((ACPI_DB_WARN, ...) with printk(KERN_WARNING PREFIX ...)

We do not use ACPI_ERROR/ACPI_WARNING since they're not exported, see
-------------------------------------------------------------
commit 6468463abd
Author: Len Brown <len.brown@intel.com>
Date:   Mon Jun 26 23:41:38 2006 -0400

    ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)

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

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:41 -04:00
Alexey Starikovskiy
8bd108d146 ACPICA: add preemption point after each opcode parse
Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:41 -04:00
Bob Moore
c2de3a4945 ACPICA: Improve object conversion error messages
Better error messages during object conversion from internal
to the external ACPI_OBJECT. Used for external calls to
acpi_evaluate_object.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:40 -04:00
Bob Moore
f02a99ac66 ACPICA: Add function to decode reference obj types to strings
Created for improved error messages.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:39 -04:00
Bob Moore
0a1fbf2db0 ACPICA: Return method arg count from acpi_get_object_info
Also update the debugger so that the correct number of arguments is
passed to the method. Prevents a warning message from the debugger.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:38 -04:00
Bob Moore
b7906e3245 ACPICA: Fix warning for 64-bit build
Fixes warning from exconfig.c on 64-bit build.

AK: This actually was fixed earlier in Linux, this just syncs with
AK: the version of the fix that went into the ACPCA codebase

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:37 -04:00
Lin Ming
bbc2413406 ACPICA: Add function to dereference returned reference objects
Examines the return object from a call to acpi_evaluate_object.
Any Index or RefOf references are automatically dereferenced in
an attempt to return something useful (these reference types
cannot be converted into an external ACPI_OBJECT.)
Lin Ming, Bob Moore.

http://bugzilla.kernel.org/show_bug.cgi?id=11105

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:37 -04:00
Yi Yang
b417d40b9a ACPICA: Return status from global init function
Return status from acpi_ut_init_globals. This is used by both
the kernel subsystem and the utilities such as iASL compiler.
The function could possibly fail when the caches are initialized.
Yang Yi.

Signed-off-by: Yi Yang <yi.y.yang@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:36 -04:00
Bob Moore
a6f30539f3 ACPICA: Fix table compare code, length then data
Split the ACPI table compare. First check that the lengths match
exactly. Then compare the data.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:36 -04:00
Bob Moore
e56f561736 ACPICA: Allow same ACPI table to be loaded/unloaded more than once
Without this change, a table cannot be loaded again once it has
been loaded/unloaded one time. The current mechanism does not
unregister a table upon an unload. During a load, if the same
table is found, this no longer returns an exception.

http://www.acpica.org/bugzilla/show_bug.cgi?id=722

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:35 -04:00
Fiodor Suietov
237a927682 ACPICA: Add check for invalid handle in acpi_get_object_info
Return AE_BAD_PARAMETER if input handle is invalid.

http://www.acpica.org/bugzilla/show_bug.cgi?id=474

Signed-off-by: Fiodor Suietov <fiodor.f.suietov@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:35 -04:00
Dennis Noordsij
f0e0da8a6c ACPICA: Copy dynamically loaded tables to local buffer
Previously, dynamically loaded tables were simply mapped, but on some machines
this memory is corrupted after suspend. Now copy the table to a local buffer.
For OpRegion case, added checksum verify. Use the table length from the table header,
not the region length. For Buffer case, use the table length also.

http://bugzilla.kernel.org/show_bug.cgi?id=10734

Signed-off-by: Dennis Noordsij <dennis.noordsij@helsinki.fi>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:34 -04:00
Alex Chiang
828f37683e PCI: update pci_create_slot() to take a 'hotplug' param
Slot detection drivers can co-exist with hotplug drivers. The names
of the detected/claimed slots may be different depending on module
load order.

For legacy reasons, we need to allow hotplug drivers to override
the slot name if a detection driver is loaded first (and they find
the same slots).

Creating and overriding slot names should be an atomic operation,
otherwise you get a locking nightmare as various drivers race to
call pci_create_slot().

pci_create_slot() is already serialized by grabbing the pci_bus_sem.

We update the API and add a 'hotplug' param, which is:

	set if the caller is a hotplug driver
	NULL if the caller is a detection driver

pci_create_slot() does not actually use the 'hotplug' parameter in this
patch. A later patch will add the logic that uses it.

Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-22 16:42:38 -07:00
donald.d.dugger@intel.com
383d7a11c9 ACPI: Fix possible null ptr dereference
Code in `pci_link.c' is calling the internal routine `acpi_ut_evaluate_object'
which is dangerous given that it is passing a NULL pointer when it should
be passing a pointer to a real object.  The patch corrects the issue by
having the code call the external routine `acpi_evaluate_object', which
correctly handles a NULL pointer.

Signed-off-by: Don Dugger <donald.d.dugger@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 18:01:22 -04:00
Len Brown
ea5c8af9b1 ACPI: remove unused acpi_is_child_device()
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 18:01:12 -04:00
Zhao Yakui
39a0ad8710 ACPI : Load device driver according to the status of acpi device
According to ACPI spec when the status of some device is not present
but functional, the device is valid and the children of this device
should be enumerated. It means that the device should be added to
linux acpi device tree. But the device driver for this device should not
be loaded.
    The detailed info can be found in the section 6.3.7 of ACPI 3.0b spec.
    _STA may return bit 0 clear (not present) with bit 3 set (device is
functional). This case is used to indicate a valid device for which no
device driver should be loaded (for example, a bridge device.).
Children of this device may be present and valid. OS should continue
enumeration below a device whose _STA returns this bit combination

http://bugzilla.kernel.org/show_bug.cgi?id=3358

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 18:00:50 -04:00
Zhao Yakui
6415e12ba0 ACPI: Add DMI check to disable power state check in power transition
Add the DMI check to disable power check in the course of device power
transistion.

http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 18:00:13 -04:00
Zhao Yakui
f5adfaa372 ACPI: Add "acpi.power_nocheck=1" to disable power state check in power transition
Maybe the incorrect power state is returned on the bogus bios, which
is different with the real power state. For example: the bios returns D0
state and the real power state is D3. OS expects to set the device to D0
state. In  such case if OS uses the power state returned by the BIOS and
checks the device power state very strictly in power transition, the device
can't be transited to the correct power state.

   So the boot option of "acpi.power_nocheck=1" is added to avoid checking
the device power in the course of device power transition.

http://bugzilla.kernel.org/show_bug.cgi?id=8049
http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 17:59:57 -04:00
Zhao Yakui
eab4b64576 ACPI: Attach the ACPI device to the ACPI handle as early as possible
Attach the ACPI device to the ACPI handle as early as possible so that OS
can get the corresponding ACPI device by the acpi handle in the course
of getting the power/wakeup/performance flags.

http://bugzilla.kernel.org/show_bug.cgi?id=8049
http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 17:59:36 -04:00
Zhao Yakui
a51e145f37 ACPI: Get the device power state in the course of scanning device
Get the device power state in the course of scanning device if the device
power flag is power_managable. i.e. The device has the _PSx/_PRx object.

At the same time before the drivers/acpi/power module is loaded, there is no
relation between acpi_power_resource and acpi device. So the first parameter
of acpi_power_get_state is changed to acpi_handle.

http://bugzilla.kernel.org/show_bug.cgi?id=8049
http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 17:58:00 -04:00
Lin Ming
08237974af ACPI: replace AE_BAD_ADDRESS exception code with AE_ERROR
The AE_BAD_ADDRESS exception code is now unused in ACPICA.
For linux, it's only used at wmi.c and acer-wmi.c.
I checked both wmi.c and acer-wmi.c, the AE_BAD_ADDRESS exception code
has no special meaning. The parent functions just call AE_SUCCESS() or
AE_FAILURE() to check the return status.
So it's safe to replace AE_BAD_ADDRESS with AE_ERROR.

Signed-off-by Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 17:56:40 -04:00
Rafael J. Wysocki
5d1e072b6b ACPI suspend: Fix CONFIG_ACPI_SLEEP dependence and some compilation warnings
Initially CONFIG_PM_SLEEP was defined as
CONFIG_SUSPEND || CONFIG_HIBERNATION and some ACPI code, most
importantly the code in drivers/acpi/main.c, was written with this
assumption.  Currently, however, CONFIG_PM_SLEEP is also set when
CONFIG_XEN_SAVE_RESTORE is set.

This causes some compilation warnings to appear in
drivers/acpi/main.c if both CONFIG_SUSPEND and CONFIG_HIBERNATION
are unset and CONFIG_PM_SLEEP is set (this was impossible before).
To fix this problem, redefine CONFIG_ACPI_SLEEP do depend directly
on CONFIG_SUSPEND || CONFIG_HIBERNATION, as originally intended, and
use it instead of CONFIG_PM_SLEEP in drivers/acpi/main.c, wherever
appropriate.

Additionally, move the acpi_target_sleep_state definition from under
the #ifdef to prevent compilation from failing in some cases.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 14:58:43 -04:00
Parag Warudkar
01e8ef11bc x86: sysfs: kill owner field from attribute
Tejun's commit 7b595756ec made sysfs
attribute->owner unnecessary.  But the field was left in the structure to
ease the merge.  It's been over a year since that change and it is now
time to start killing attribute->owner along with its users - one arch at
a time!

This patch is attempt #1 to get rid of attribute->owner only for
CONFIG_X86_64 or CONFIG_X86_32 .  We will deal with other arches later on
as and when possible - avr32 will be the next since that is something I
can test.  Compile (make allyesconfig / make allmodconfig / custom config)
and boot tested.

akpm: the idea is that we put the declaration of sttribute.owner inside
`#ifndef CONFIG_X86'.  But that proved to be too ambitious for now because
new usages kept on turning up in subsystem trees.

[akpm: remove the ifdef for now]
Signed-off-by: Parag Warudkar <parag.lkml@gmail.com>
Cc: Greg KH <greg@kroah.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:42 -07:00
Adrian Bunk
ab527d7578 acpi: use bcd2bin/bin2bcd
Change ACPI to use the new bcd2bin/bin2bcd functions instead of the
obsolete BCD_TO_BIN/BIN_TO_BCD macros.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:41 -07:00
Zhao Yakui
8fd145917f ACPI: Ingore the RESET_REG_SUP bit when using ACPI reset mechanism
According to ACPI 3.0, FADT.flags.RESET_REG_SUP indicates
whether the ACPI reboot mechanism is supported.

However, some boxes have this bit clear, have a valid
ACPI_RESET_REG & RESET_VALUE, and ACPI reboot is the only
mechanism that works for them after S3.

This suggests that other operating systems may not be checking
the RESET_REG_SUP bit, and are using other means to decide
whether to use the ACPI reboot mechanism or not.

Here we stop checking RESET_REG_SUP.
Instead, When acpi reboot is requested,
only the reset_register is checked. If the following
conditions are met, it indicates that the reset register is supported.
	a. reset_register is not zero
	b. the access width is eight
	c. the bit_offset is zero

http://bugzilla.kernel.org/show_bug.cgi?id=7299
http://bugzilla.kernel.org/show_bug.cgi?id=1148

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-18 01:01:12 -04:00
Mike Dahlgren
c6c38bac26 asus_acpi: whitespace and comment cleanup
Signed-off-by: Mike Dahlgren <dahlgren@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-17 14:35:14 -04:00
Zhang Rui
22a94d79a3 ACPI: Allow overriding to higher critical trip point.
http://bugzilla.kernel.org/show_bug.cgi?id=9129

lenb: Note that overriding a critical trip point
may simply fool the user into thinking that they
have control that they do not actually have.
For it is EC firmware that decides when the EC
sends Linux temperature change events, and the
EC may or may not decide to send Linux these events
anywhere in the neighborhood of the fake
override trip points.  Beware.

note also that thermal.nocrt is already available
to disable crtical trip point actios,
and thermal.crt=-1 is already available to
disabled critical trip points entirely.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-17 02:42:03 -04:00
Zhao Yakui
20edd74fcf ACPI: Ignore AE_NOT_FOUND error of EC _REG method and continue to initialize EC
On some broken BIOS the ACPI object in EC _REG method can't be found in
ACPI namespace, which causes that the status code of AE_NOT_FOUND is returned by
the EC _REG object. In such case the EC device can't be initialized correctly,
which causes that battery/AC adapter can't work normally. As the EC address
space handler is not removed and the memory pointed by its input argument is
already free, sometimes the kernel will also be panic when EC internal register
is still accessed. But the windows can work well on such broken BIOS.

Maybe it will be reasonable that OS ignores the AE_NOT_FOUND error
returned by the EC _REG object and continues to initialize EC device
on some broken BIOS.
For example: the ACPI object in EC _REG method can't be found and status error
code is AE_NOT_FOUND.

http://bugzilla.kernel.org/show_bug.cgi?id=8953
http://bugzilla.kernel.org/show_bug.cgi?id=10237

lenb: we may find a more general solution to this in the future.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-17 02:02:44 -04:00
Zhang Rui
7745384080 don't load asus-acpi if model is not supported
asus_hotk_get_info should return -ENODEV if the model is not supported.
http://bugzilla.kernel.org/show_bug.cgi?id=10389

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-17 01:42:41 -04:00
Rafael J. Wysocki
4fb507b6b7 ACPI suspend: Blacklist HP xw4600 Workstation for old code ordering
HP xw4600 Workstation is known to require the "old" (ie. compatible
with ACPI 1.0) suspend code ordering, so blacklist it for this
purpose.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: John Brown <john.brown3@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 20:45:54 -04:00
Rafael J. Wysocki
d0c71fe7eb ACPI Suspend: Enable ACPI during resume if SCI_EN is not set
On some machines, like for example MSI Wind U100, the BIOS doesn't
enable ACPI before returning control to the OS, which sometimes
causes resume to fail.  This is against the ACPI specification,
which clearly states that "When the platform is waking from an S1, S2
or S3 state, OSPM assumes the hardware is already in the ACPI mode
and will not issue an ACPI_ENABLE", but it won't hurt to check the
SCI_EN bit and enable ACPI during resume from S3 if this bit is not
set.

Fortunately, we already have acpi_enable() for that, so use it in the
resume code path, before executing _BFS, in analogy with the
resume-from-hibernation code path.

NOTE: We aren't supposed to set SCI_EN directly, because it's owned
by the hardware.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 20:45:54 -04:00
Rafael J. Wysocki
a6629105dd ACPI suspend: Always use the 32-bit waking vector
According to the ACPI specification 2.0c and later, the 64-bit waking vector
should be cleared and the 32-bit waking vector should be used, unless we want
the wake-up code to be called by the BIOS in Protected Mode.  Moreover, some
systems (for example HP dv5-1004nr) are known to fail to resume if the 64-bit
waking vector is used.  Therefore, modify the code to clear the 64-bit waking
vector, for FACS version 1 or greater, and set the 32-bit one before suspend.

http://bugzilla.kernel.org/show_bug.cgi?id=11368

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 20:45:35 -04:00
Zhao Yakui
e49f711cc8 ACPI: Add the support for _TTS object
The _TTS object is defined in the section 7.3 of acpi 3.0b spec.
    The _TTS control method is executed by the OSPM at the beginning of
the sleep transition process for S1,S2, S3, S4, and orderly S5 shutdown.
OS will invoke _TTS before it has notified any native mode device drivers
of the sleep state transition. The target sleeping state value is passed to
the _TTS control method.

    The _TTS control method is also executed by the OSPM at the end of
any sleep transition process when the system transitions to S0 from
S1, S2, S3, or S4. The _TTS object should be evaluated after it has
notified any native mode device drivers of the end of the sleep state
transition. The working state value (0) is passed to the _TTS control method.

    So it is necessary to add the support for _TTS object. The _TTS object
will be evaluated if it exists.
    At the same time a block notifier is added to the reboot notifier list so
that the _TTS object will also be evaluated when the system shutdown.

lenb: note that as of Sep 2008, I've not yet seen _TTS in any shipping BIOS.
So this patch is to future-proof Linux, rather than fix the installed base.

http://bugzilla.kernel.org/show_bug.cgi?id=11132

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 20:45:18 -04:00
Alexey Starikovskiy
c0ff17720e ACPI: EC: Check for IBF=0 periodically if not in GPE mode
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 18:14:07 -04:00
Venkatesh Pallipadi
addbad46ed cpuidle: update the last_state acpi cpuidle reflecting actual state entered
reflect the actual state entered in dev->last_state, when actaul state entered
is different from intended one.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 18:00:04 -04:00
Matthew Garrett
a68823ee52 ACPI: Clear WAK_STS on resume
The leading other brand OS appears to clear the WAK_STS flag on resume.
When rebooted, certain BIOSes assume that the system is actually
resuming if it's still set and so fail to reboot correctly. Make sure
that it's cleared at resume time.

Comment clarified as suggested by Bob Moore

http://bugzilla.kernel.org/show_bug.cgi?id=11634

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Romano Giannetti <romano.giannetti@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16 14:17:06 -04:00
Bjorn Helgaas
a474aaedac rtc-cmos: move wake setup from ACPI glue into RTC driver
Move rtc_wake_setup() from drivers/acpi/glue.c into the RTC driver
in drivers/rtc/rtc-cmos.c.

This removes the ordering constraint between the module_init(acpi_rtc_init)
and the cmos_do_probe() code that depends on it.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 16:08:21 -07:00
Linus Torvalds
fffdedef69 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  net/mac80211/rx.c: fix build error
  acpi: Make ACPI_TOSHIBA depend on INPUT.
  net/bfin_mac.c MDIO namespace fixes
  jme: remove unused #include <version.h>
  netfilter: remove unused #include <version.h>
  net: Fix off-by-one in skb_dma_map
  smc911x: Add support for LAN921{5,7,8} chips from SMSC
  qlge: remove duplicated #include
  wireless: remove duplicated #include
  net/au1000_eth.c MDIO namespace fixes
  net/tc35815.c: fix compilation
  sky2: Fix WOL regression
  r8169: NULL pointer dereference on r8169 load
2008-10-13 10:08:08 -07:00
David S. Miller
4bb03849ae acpi: Make ACPI_TOSHIBA depend on INPUT.
Selecting INPUT_POLLDEV is not sufficient.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-12 21:22:31 -07:00
Linus Torvalds
1efd325fba Fix RTC wakealarm sysfs interface breakage.
Commit ed458df4d2 ("PnP: move
pnpacpi/pnpbios_init to after PCI init") moved the PnP RTC discovery
later, and now the ACPI RTC glue code doesn't find it any more, breaking
the RTC wakealarm sysfs interfaces, as reported by Rafael.

This really is fairly messy, and we have several annoying ordering
constraints here - the PnP code that sets up the RTC resources wants to
run after the PCI resources have to be registered, which in turn needs
to run after ACPI has at least enumerated the root PCI buses etc.  Our
initcall ordering is not fine-grained enough to make this all painless.

So this moves the ACPI RTC glue ("acpi_rtc_init()") down to a regular
module call, which fixes the problem Rafael has.  The reason this isn't
wonderful is that we really should do acpi_rtc_init before we do the
rtc_cmos init, and now those two are in the same module_init() section.

Which happens to work, but only because drivers/rtc is linked after
drivers/acpi.  In other words, we still have a very subtle ordering
issue here. Grr.

Reported-and-tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-12 11:30:08 -07:00
Matthew Wilcox
27663c5855 ACPI: Change acpi_evaluate_integer to support 64-bit on 32-bit kernels
As of version 2.0, ACPI can return 64-bit integers.  The current
acpi_evaluate_integer only supports 64-bit integers on 64-bit platforms.
Change the argument to take a pointer to an acpi_integer so we support
64-bit integers on all platforms.

lenb: replaced use of "acpi_integer" with "unsigned long long"
lenb: fixed bug in acpi_thermal_trips_update()

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11 02:47:33 -04:00
Zhao Yakui
455c8793d2 ACPI: Enable EC device immediately after ACPI full initialization
when there is no ECDT table and no _INI object for EC device, it will be
enabled before scanning ACPI device. But it is too late after the following
the commit is merged.
    >commit 7752d5cfe3
    > Author: Robert Hancock <hancockr@shaw.ca>
    > Date:   Fri Feb 15 01:27:20 2008 -0800
       >x86: validate against acpi motherboard resources

   After the above commit is merged, OS will check whether MCFG area is
reserved in ACPI motherboard resources by calling the function of
acpi_get_devices when there exists MCFG table. In the acpi_get_devices the _STA
object will be evaluated to check the status of the ACPI device. On some broken
BIOS the MYEC object of EC device is initialized as one, which indicates that
EC operation region is already accessible before enabling EC device.So on these
broken BIOS the EC operation region will be accessed in course of evaluating
the _STA object before enabling EC device, which causes that OS will print the
following warning messages:
    >ACPI Error (evregion-0315): No handler for Region [EC__] (ffff88007f8145e8)
[EmbeddedControl] [20080609]
    >ACPI Error (exfldio-0290): Region EmbeddedControl(3) has no handler [20080321]
    >ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.SBRG.
         EC__.BAT1._STA] (Node ffff81013fc17a00), AE_NOT_EXIST
    >ACPI Error (uteval-0233): Method execution failed [\_SB_.PCI0.SBRG.EC__.BAT1.
         _STA] (Node ffff81013fc17a00), AE_NOT_EXIST

Although the above warning message is harmless, it looks confusing.
So it is necessary to enable EC device as early as possible.Maybe it is
appropriate to enable it immediately after ACPI full initialization.

http://bugzilla.kernel.org/show_bug.cgi?id=11255
http://bugzilla.kernel.org/show_bug.cgi?id=11374
http://bugzilla.kernel.org/show_bug.cgi?id=11660

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11 02:00:02 -04:00
Thomas Renninger
0a918a9432 Subject: ACPI dock: Use ACPI_EXCEPTION instead of printk(KERN_ERR
lenb: stripped patch down to what still applied to new dock.c

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11 00:15:04 -04:00
Randy Dunlap
b3cef8f6eb toshiba_acpi: depends on INPUT
CONFIG_ACPI_TOSHIBA can =y when CONFIG_INPUT=m, so prevent that
combination and its subsequent build errors:

toshiba_acpi.c:(.text+0x3e877): undefined reference to `input_event'
toshiba_acpi.c:(.text+0x3e98a): undefined reference to `input_unregister_polled_device'
toshiba_acpi.c:(.text+0x3e994): undefined reference to `input_free_polled_device'
toshiba_acpi.c:(.init.text+0x21b4): undefined reference to `input_allocate_polled_device'
toshiba_acpi.c:(.init.text+0x2263): undefined reference to `input_register_polled_device'
make[1]: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 18:05:54 -04:00
Pavel Machek
db89b4f0db ACPI: catch calls of acpi_driver_data on pointer of wrong type
Catch attempts to use of acpi_driver_data on pointers of wrong type.

akpm: rewritten to use proper C typechecking and remove the
"function"-used-as-lvalue thing.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 18:05:53 -04:00
Harvey Harrison
9e113e0014 ACPI: toshiba_acpi.c fix sparse signedness mismatch warnings
set_bit expects unsigned int, and we start with a u32 anyway.
drivers/acpi/toshiba_acpi.c:397:14: warning: incorrect type in argument 1 (different signedness)
drivers/acpi/toshiba_acpi.c:397:14:    expected unsigned int [usertype] *word
drivers/acpi/toshiba_acpi.c:397:14:    got int *<noident>
drivers/acpi/toshiba_acpi.c:399:14: warning: incorrect type in argument 1 (different signedness)
drivers/acpi/toshiba_acpi.c:399:14:    expected unsigned int [usertype] *word
drivers/acpi/toshiba_acpi.c:399:14:    got int *<noident>
drivers/acpi/toshiba_acpi.c:401:14: warning: incorrect type in argument 1 (different signedness)
drivers/acpi/toshiba_acpi.c:401:14:    expected unsigned int [usertype] *word
drivers/acpi/toshiba_acpi.c:401:14:    got int *<noident>

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 18:05:53 -04:00
Alexey Starikovskiy
4b5fcb353b ACPI: acpi_driver_data could only be applied to acpi_device
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Hannes Reinecke <hare@suse.de>

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 18:05:52 -04:00
Jan Beulich
fcea94ba07 ACPI: fix FADT parsing
The (1.0 inherited) separate length fields in the FADT are byte granular.
Further, PM1a/b may have distinct lengths (if using the v2 fields was
okay) and may live in distinct address spaces.  acpi_tb_convert_fadt()
should account for all of these conditions.

Apart from these changes I'm puzzled by the fact that, not just for
acpi_gbl_xpm1{a,b}_enable, acpi_hw_low_level_{read,write}() get an
explicit size passed rather than using the size found in the passed GAS.
What happens on a platform that defines PM1{a,b} wider than 16 bits?  Of
course, acpi_hw_low_level_{read,write}() at present are entirely
un-prepared to deal with sizes other than 8, 16, or 32, not to speak of a
non-zero bit_offset or access_width...

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 15:31:48 -04:00
David S. Miller
4dd565134e Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/e1000e/ich8lan.c
	drivers/net/e1000e/netdev.c
2008-10-08 14:56:41 -07:00
Matthew Garrett
a66bfa7a47 ACPI: WMI: Enable event methods when registering notifiers
According to the ACPI-WMI spec, event blocks may provide a function call
for enabling/disabling them. This patch adds support for making these
calls when registering or removing notifications. Without this, my Dell
firmware provides no data in the event notification.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-08 16:56:41 -04:00
Zhang Rui
faee816b15 ACPI: don't enable control method power button as wakeup device when Fixed Power button is used
don't enable control method power button as wakeup device
when Fixed Power button is used.

http://bugzilla.kernel.org/show_bug.cgi?id=10503

Tested-by: walken@zoy.org <walken@zoy.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-06 22:31:11 -04:00
Rafael J. Wysocki
76acae04c8 ACPI: Make /proc/acpi/wakeup interface handle PCI devices (again)
Make the ACPI /proc/acpi/wakeup interface set the appropriate wake-up bits
of physical devices corresponding to the ACPI devices and make those bits
be set initially for devices that are enabled to wake up by default.  This
is needed to restore the 2.6.26 and earlier behavior for the PCI devices
that were previously handled correctly with the help of the
/proc/acpi/wakeup interface.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:19 -07:00
Alexey Starikovskiy
8463200a00 ACPI: EC: Rename some variables
No functional changes.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Rafael J. Wysocki <rjw@suse.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-29 13:36:44 -04:00
Alexey Starikovskiy
7c6db4e050 ACPI: EC: do transaction from interrupt context
It is easier and faster to do transaction directly from interrupt context
rather than waking control thread.
Also, cleaner GPE storm avoidance is implemented.
References: 	http://bugzilla.kernel.org/show_bug.cgi?id=9998
		http://bugzilla.kernel.org/show_bug.cgi?id=10724
		http://bugzilla.kernel.org/show_bug.cgi?id=10919
		http://bugzilla.kernel.org/show_bug.cgi?id=11309
		http://bugzilla.kernel.org/show_bug.cgi?id=11549
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-25 16:23:03 -04:00
Shaohua Li
8652b00fd6 dock: add 'type' sysfs file
add a sysfs file to present dock type. Suggested by Holger.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:48:59 -04:00
Shaohua Li
61b8369583 dock: fix for ATA bay in a dock station
an ATA bay can be in a dock and itself can be ejected separately.
This patch handles such eject bay. Found by Holger.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:48:52 -04:00
Shaohua Li
4be9309d15 bay: remove driver, all functions now handled by dock driver
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:48:32 -04:00
Shaohua Li
1253f7aabf dock: introduce .uevent for devices in dock, eg libata
dock's uevent reported itself, not ata. It might be difficult to find an
ata device just according to a dock. This patch introduces docking ops
for each device in a dock. when docking, dock driver can send device
specific uevent. This should help dock station too (not just bay)

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:23:00 -04:00
Shaohua Li
f730ae1838 libata: remove functions now handed by ACPI dock driver
dock driver can handle ata(bay) hotplug now. dock driver already handles
_EJ0 and _STA, so remove them. Also libata doesn't need register
notification handler anymore.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:16:41 -04:00
Zhang Rui
19cd847ab2 ACPI: fix hotplug race
The hotplug notification handler and drivers' notification handler all
run in one workqueue.  Before hotplug removes an acpi device, the
device driver's notification handler is already be recorded to run just
after global notification handler.  After hotplug notification handler
runs, acpica will notice a NULL notification handler and crash.

So now we run run hotplug in another workqueue and wait
for all acpi notication handlers finish.
This was found in battery hotplug, but actually all
hotplug can be affected.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:12:38 -04:00
Shaohua Li
6bd00a61ab ACPI: introduce notifier change to avoid duplicates
The battery driver already registers notification handler.
To avoid registering notification handler again,
introduce a notifier chain in global system notifier handler
and use it in dock driver.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:04:43 -04:00
Shaohua Li
db350b084d dock: add bay and battery hotplug support
Make the dock driver support bay and battery hotplug.
They are all regarded as dock, so handling can be unified.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 23:01:29 -04:00
Shaohua Li
406f692d08 dock: add _LCK support
support _LCK method, which is a optional method for hotplug

lenb: we have not seen _LCK used in the field yet

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 22:59:29 -04:00
Shaohua Li
82545394e0 dock: fix eject request process (2.6.27-rc1 regression)
commit 2a7feab28d3fc060d320eaba192e49dad1079b7e introduces a bug.
My thinkpad actually will send an eject_request and we should follow the
eject process to finish the eject, otherwise system still thinks the bay
is present.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 22:57:19 -04:00
Shaohua Li
8b59560a3b ACPI: dock: avoid check _STA method
In some BIOSes, every _STA method call will send a notification again,
this cause freeze. And in some BIOSes, it appears _STA should be called
after _DCK. This tries to avoid calls _STA, and still keep the device
present check.

http://bugzilla.kernel.org/show_bug.cgi?id=10431

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23 22:54:39 -04:00