28 May, 2009
1 commit
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We used to evaluate _STA to check the power state of a device after
running _ON or _OFF. But as far as I can tell, there's no benefit
to evaluating _STA, and sometimes we trip over bugs when BIOSes don't
implement _STA correctly.Yakui says Windows XP doesn't evaluate _STA during power transition.
So let's skip it in Linux, too. It's conceivable that we'll need to
check _STA in the future for some reason, but until we do, I don't
see a reason to clutter this code path.References:
http://bugzilla.kernel.org/show_bug.cgi?id=13243
http://marc.info/?l=linux-acpi&m=124166053803753&w=2
http://marc.info/?l=linux-acpi&m=124175761408256&w=2
http://marc.info/?l=linux-acpi&m=124210593114061&w=2Signed-off-by: Bjorn Helgaas
Acked-by: Matthew Garrett
Signed-off-by: Len Brown
05 Apr, 2009
1 commit
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Conflicts:
drivers/acpi/MakefileSigned-off-by: Len Brown
03 Apr, 2009
1 commit
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Impact: cleanup
Rather than overriding MODULE_PARAM_PREFIX, build via acpi.o so
KBUILD_MODNAME is set to "acpi".This is the logical way to do it, even though acpi cannot be a module
due to these config options being bool. Those parts of ACPI which can
be modular are not built into the acpi "module".Signed-off-by: Rusty Russell
Signed-off-by: Len Brown
28 Mar, 2009
1 commit
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This patch makes acpi_init() call acpi_power_init() directly.
Previously, both were subsys_initcalls. acpi_power_init()
must happen after acpi_init(), and it's better to call it
explicitly rather than rely on link ordering.Signed-off-by: Bjorn Helgaas
CC: Zhao Yakui
Signed-off-by: Len Brown
31 Dec, 2008
1 commit
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acpi_ut_get_node_name is an internal acpica function.
use acpi_get_name to get node ascii nameSigned-off-by: Lin Ming
Signed-off-by: Len Brown
12 Nov, 2008
1 commit
08 Nov, 2008
1 commit
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Move all the component definitions for drivers to a single shared place,
include/acpi/acpi_drivers.h.Signed-off-by: Bjorn Helgaas
Signed-off-by: Len Brown
28 Oct, 2008
2 commits
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On some laptops the Fan device is turned on/off by controlling the
corresponding power resource. For example: If the power resource
defined in _PR0 object is turned off, it indicates that the FAN device
is in off state(the ACPI state is in D3 state).Maybe the device is already in D3 state and expected to be transited to
D3 state. As there is no _PR3 object, the power transition can't be
finished and it will be switched to the Unknown state.Maybe it is more reasonable that the strick check in power transistion
is deleted.http://bugzilla.kernel.org/show_bug.cgi?id=9485
Signed-off-by: yakui.zhao@intel.com
Signed-off-by: Len Brown -
change state to *state in the function of acpi_power_get_state()
Signed-off-by: yakui.zhao@intel.com
Signed-off-by: Len Brown
23 Oct, 2008
4 commits
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Conflicts:
drivers/acpi/bay.c
drivers/acpi/dock.c
drivers/ata/libata-acpi.cSigned-off-by: Len Brown
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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=11000Signed-off-by: Zhao Yakui
Signed-off-by: Zhang Rui
Signed-off-by: Li Shaohua
Signed-off-by: Andi Kleen
Signed-off-by: Len Brown -
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=11000Signed-off-by: Zhao Yakui
Signed-off-by: Li Shaohua
Signed-off-by: Andi Kleen
Signed-off-by: Len Brown
11 Oct, 2008
2 commits
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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
Signed-off-by: Len Brown -
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
Signed-off-by: Andrew Morton
Signed-off-by: Len Brown
08 Jul, 2008
2 commits
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Introduce additional flag 'prepared' in struct acpi_device_wakeup_flags
and use it to prevent devices from being enable/disabled do wake up the
system multiple times in a row (this does not happen currently, but will
be possible after some of the following patches).Signed-off-by: Rafael J. Wysocki
Signed-off-by: Jesse Barnes -
The currect ACPI code attempts to execute _PSW at three different
places and in one of them only it tries to execute _DSW before _PSW,
which is inconsistent with the other two cases.Move the execution of _DSW and _PSW into a separate function called
acpi_device_sleep_wake() and call it wherever appropriate instead of
executing _DSW and/or _PSW directly.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Jesse Barnes
01 May, 2008
1 commit
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* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (179 commits)
ACPI: Fix acpi_processor_idle and idle= boot parameters interaction
acpi: fix section mismatch warning in pnpacpi
intel_menlo: fix build warning
ACPI: Cleanup: Remove unneeded, multiple local dummy variables
ACPI: video - fix permissions on some proc entries
ACPI: video - properly handle errors when registering proc elements
ACPI: video - do not store invalid entries in attached_array list
ACPI: re-name acpi_pm_ops to acpi_suspend_ops
ACER_WMI/ASUS_LAPTOP: fix build bug
thinkpad_acpi: fix possible NULL pointer dereference if kstrdup failed
ACPI: check a return value correctly in acpi_power_get_context()
#if 0 acpi/bay.c:eject_removable_drive()
eeepc-laptop: add hwmon fan control
eeepc-laptop: add backlight
eeepc-laptop: add base driver
ACPI: thinkpad-acpi: bump up version to 0.20
ACPI: thinkpad-acpi: fix selects in Kconfig
ACPI: thinkpad-acpi: use a private workqueue
ACPI: thinkpad-acpi: fluff really minor fix
ACPI: thinkpad-acpi: use uppercase for "LED" on user documentation
...Fixed conflicts in drivers/acpi/video.c and drivers/misc/intel_menlow.c
manually.
29 Apr, 2008
2 commits
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Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.Add correct ->owner to proc_fops to fix reading/module unloading race.
Signed-off-by: Denis V. Lunev
Cc: Len Brown
Cc: Alexey Dobriyan
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We should check *resource != NULL rather than resource != NULL, which will be
always true.Signed-off-by: Li Zefan
Acked-by: Zhao Yakui
Signed-off-by: Andrew Morton
Signed-off-by: Len Brown
07 Feb, 2008
1 commit
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Remove duplicated warning message in acpi_power_transition()
ACPI: Transitioning device [%s] to D%d\n
This warning message is printed by acpi_bus_set_power() so we don't
need to print it again.Signed-off-by: Miguel Botón
Signed-off-by: Andrew Morton
Signed-off-by: Len Brown
26 Oct, 2007
1 commit
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ACPI may change power resource state behind our back, so don't
keep our local copy, which may not be valid.Signed-off-by: Alexey Starikovskiy
Signed-off-by: Len Brown
24 Jul, 2007
1 commit
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modpost is going to use these to create e.g. acpi:ACPI0001
in modules.alias.Signed-off-by: Thomas Renninger
Signed-off-by: Len Brown
10 Mar, 2007
1 commit
07 Mar, 2007
1 commit
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(http://www.mail-archive.com/linux-acpi@vger.kernel.org/msg05270.html):
References : http://lkml.org/lkml/2007/2/21/413
http://lkml.org/lkml/2007/2/28/172
Submitter : Arkadiusz Miskiewicz
Caused-By : Konstantin Karasyov
commit 0a6139027f3986162233adc17285151e78b39cacDo not disable power resources on resume even if there are no devices referencing it.
Signed-off-by: Konstantin Karasyov
Signed-off-by: Len Brown
21 Feb, 2007
1 commit
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http://bugzilla.kernel.org/show_bug.cgi?id=7570#c14
Signed-off-by: Konstantin Karasyov
Signed-off-by: Len Brown
17 Feb, 2007
2 commits
16 Feb, 2007
3 commits
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http://bugzilla.kernel.org/show_bug.cgi?id=7570
Signed-off-by: Konstantin Karasyov
Signed-off-by: Len Brown -
drivers/acpi/power.c:69: warning: initialization from incompatible pointer type
Signed-off-by: Len Brown
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The previous reference counting scheme to enable power resources
got confused when multiple devices were present that might
repeatedly enable or disable the resource and throw off the count.The new code simply lists the referencing devices which
are requesting the resource to be enabled. When there are none,
then it is off.Signed-off-by: Konstantin Karasyov
Signed-off-by: Len Brown
13 Feb, 2007
3 commits
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Cosmetic only.
Except in a single case, #define ACPI_*_DRIVER_NAME
were invoked 0 or 1 times.Signed-off-by: Len Brown
-
It was erroneously used as a description rather than a name.
ie. turn this:
lenb@se7525gp2:/sys> ls bus/acpi/drivers
ACPI AC Adapter Driver ACPI Embedded Controller Driver ACPI Power Resource Driver
ACPI Battery Driver ACPI Fan Driver ACPI Processor Driver
ACPI Button Driver ACPI PCI Interrupt Link Driver ACPI Thermal Zone Driver
ACPI container driver ACPI PCI Root Bridge Driver hpetinto this:
lenb@se7525gp2:~> ls /sys/bus/acpi/drivers
ac battery button container ec fan hpet pci_link pci_root power processor thermalSigned-off-by: Len Brown
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cosmetic only
Make "module name" actually match the file name.
Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care.
Fix indentation where Lindent did get confused.Signed-off-by: Len Brown
21 Dec, 2006
1 commit
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Signed-off-by: Andrew Morton
Signed-off-by: Len Brown
16 Dec, 2006
1 commit
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Conflicts:
drivers/acpi/button.c
drivers/acpi/ec.c
drivers/acpi/osl.c
drivers/acpi/sbs.c
14 Oct, 2006
2 commits
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device was set to null and used before set in a debug printk
Signed-off-by: Dmitry Torokhov
Signed-off-by: Len Brown -
Signed-off-by: Jan Engelhardt
Signed-off-by: Len Brown
10 Jul, 2006
1 commit
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Signed-off-by: Arjan van de Ven
Signed-off-by: Len Brown
30 Jun, 2006
1 commit
-
Signed-off-by: Patrick Mochel
Signed-off-by: Len Brown
