ACPI and APM used "pm_active" to guarantee that
they would not be simultaneously active.
But pm_active was recently moved under CONFIG_PM_LEGACY,
so that without CONFIG_PM_LEGACY, pm_active became a NOP --
allowing ACPI and APM to both be simultaneously enabled.
This caused unpredictable results, including boot hangs.
Further, the code under CONFIG_PM_LEGACY is scheduled
for removal.
So replace pm_active with pm_flags.
pm_flags depends only on CONFIG_PM,
which is present for both CONFIG_APM and CONFIG_ACPI.
http://bugzilla.kernel.org/show_bug.cgi?id=9194
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
force_power_state was used as a workaround for invalid cached
power state of the device. We do not cache power state, so no need for
workaround.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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 <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (41 commits)
ACPICA: hw: Don't carry spinlock over suspend
ACPICA: hw: remove use_lock flag from acpi_hw_register_{read, write}
ACPI: cpuidle: port idle timer suspend/resume workaround to cpuidle
ACPI: clean up acpi_enter_sleep_state_prep
Hibernation: Make sure that ACPI is enabled in acpi_hibernation_finish
ACPI: suppress uninitialized var warning
cpuidle: consolidate 2.6.22 cpuidle branch into one patch
ACPI: thinkpad-acpi: skip blanks before the data when parsing sysfs
ACPI: AC: Add sysfs interface
ACPI: SBS: Add sysfs alarm
ACPI: SBS: Add ACPI_PROCFS around procfs handling code.
ACPI: SBS: Add support for power_supply class (and sysfs)
ACPI: SBS: Make SBS reads table-driven.
ACPI: SBS: Simplify data structures in SBS
ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)
ACPI: EC: Add new query handler to list head.
ACPI: Add acpi_bus_generate_event4() function
ACPI: Battery: add sysfs alarm
ACPI: Battery: Add sysfs support
ACPI: Battery: Misc clean-ups, no functional changes
...
Fix up conflicts in drivers/misc/thinkpad_acpi.[ch] manually
A number of different drivers incorrect access the kobject name field
directly. This is not correct as the name might not be in the array.
Use the proper accessor function instead.
ACPI spec defines the sequence of IDE power on/off:
Powering down:
Call _GTM.
Power down drive (calls _PS3 method and turns off power planes).
Powering up:
Power up drive (calls _PS0 method if present and turns on power planes).
Call _STM passing info from _GTM (possibly modified), with ID data from
each drive.
Initialize the channel.
May modify the results of _GTF.
For each drive:
Call _GTF.
Execute task file (possibly modified).
This patch adds the missed _PS0/_PS3 methods call.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Schedule /proc/acpi/event for removal in 6 months.
Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event()
to make sure there is no confusion that it is for /proc/acpi/event only.
Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event.
There is no functional change if CONFIG_ACPI_PROC_EVENT=y
Signed-off-by: Len Brown <len.brown@intel.com>
The previous events patch added a netlink event for every
user of the legacy /proc/acpi/event interface.
However, some users of /proc/acpi/event are really input events,
and they already report their events via the input layer.
Introduce a new interface, acpi_bus_generate_netlink_event(),
which is explicitly called by devices that want to repoprt
events via netlink. This allows the input-like events
to opt-out of generating netlink events. In summary:
events that are sent via netlink:
ac/battery/sbs
thermal
processor
thinkpad_acpi dock/bay
events that are sent via input layer:
button
video hotkey
thinkpad_acpi hotkey
asus_acpi/asus-laptop hotkey
sonypi/sonylaptop
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Upon ACPI events, send an "acpi_event" via Generic Netlink.
This is in addition to /proc/acpi/event, which remains intact for now.
Thanks to Jamal for his great help.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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 <len.brown@intel.com>
Provide ACPI _PRT support for SN Altix systems.
The SN Altix platform does not conform to the
IOSAPIC IRQ routing model, so a new acpi_irq_model
(ACPI_IRQ_MODEL_PLATFORM) has been defined. The SN
platform specific code sets acpi_irq_model to
this new value, and keys off of it in acpi_register_gsi()
to avoid the iosapic code path.
Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Setup new sysfs framework
1. Remove /sys/firmware/acpi
2. Add ACPI device in device tree.
File "eject" for every device that has _EJ0 method is moved from
/sys/firmware to /sys/devices.
Operation on this file is exactly the same as before.
i.e. echo 1 to "eject" will cause hot removal of this device.
Corresponding changes should be made in userspace for hot removal.
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui<rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The ACPI_EXCEPTION() patch enabled a bunch of messages to print
even in the non-DEBUG kernel. Need to change a couple back,
and note that ACPI_EXCEPTION takes no \n, but ACPI_DEBUG_PRINT does.
No context for object [%p]\n
Device `[%s]' is not power manageable\n
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown
Alexey Starikovskiy
Linus Torvalds
Greg Kroah-Hartman
Shaohua Li
Zhang Rui
Bjorn Helgaas
Konstantin Karasyov
Alexey Starikovskiy
Alexey Starikovskiy
John Keller
Patrick Mochel
Randy Dunlap