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path: root/drivers/acpi
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2008-02-08Merge branches 'release', 'dmi' and 'misc' into releaseLen Brown
2008-02-08ACPI: WMI: Improve Kconfig descriptionCarlos Corbacho
As Pavel Machek has pointed out, the Kconfig entry for WMI is pretty non-descriptive. Rewrite it so that it explains what ACPI-WMI is, and why anyone would want to enable it. Many thanks to Ray Lee for ideas on this. Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk> CC: Pavel Machek <pavel@ucw.cz> CC: Ray Lee <ray-lk@madrabbit.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-08ACPI: DMI: add Panasonic CF-52 and Thinpad X61Len Brown
Add Lenovo X61 Add Panasonic Toughbook CF-52 Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: build WMI on X86 onlyLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: cpufreq: Print _PPC changes via cpufreq debug layerThomas Renninger
enabled with CPU_FREQ_DEBUG Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: add newline to printkLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: fix build warningLen Brown
drivers/acpi/system.c:360: warning: ignoring return value of ‘sysfs_create_group’, declared with attribute warn_unused_result Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'dsdt-override' into releaseLen Brown
2008-02-07ACPI: update intrd DSDT override console messagesLen Brown
also, address some checkpatch.pl violations Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: update DSDT override documentationLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: Add "acpi_no_initrd_override" kernel parameterÉric Piel
The acpi_no_initrd_override parameter permits to disable the load of an ACPI table from the initramfs. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'fluff' into releaseLen Brown
Conflicts: drivers/acpi/scan.c include/linux/acpi.h Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: its a directory not a folder....Alan Cox
The kernel help consistently uses 'directory' Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: misc cleanupsAdrian Bunk
This patch contains the following possible cleanups: - make the following needlessly global code static: - drivers/acpi/bay.c:dev_attr_eject - drivers/acpi/bay.c:dev_attr_present - drivers/acpi/dock.c:dev_attr_docked - drivers/acpi/dock.c:dev_attr_flags - drivers/acpi/dock.c:dev_attr_uid - drivers/acpi/dock.c:dev_attr_undock - drivers/acpi/pci_bind.c:acpi_pci_unbind() - drivers/acpi/pci_link.c:acpi_link_lock - drivers/acpi/sbs.c:acpi_sbs_callback() - drivers/acpi/sbshc.c:acpi_smbus_transaction() - drivers/acpi/sleep/main.c:acpi_sleep_prepare() - #if 0 the following unused global functions: - drivers/acpi/numa.c:acpi_unmap_pxm_to_node() - remove the following unused EXPORT_SYMBOL's: - acpi_register_gsi - acpi_unregister_gsi - acpi_strict - acpi_bus_receive_event - register_acpi_bus_type - unregister_acpi_bus_type - acpi_os_printf - acpi_os_sleep - acpi_os_stall - acpi_os_read_pci_configuration - acpi_os_create_semaphore - acpi_os_delete_semaphore - acpi_os_wait_semaphore - acpi_os_signal_semaphore - acpi_os_signal - acpi_pci_irq_enable - acpi_get_pxm Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: add missing prink prefix stringsLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'hwmon-conflicts' into releaseLen Brown
2008-02-07Merge branches 'release' and 'throttling-domains' into releaseLen Brown
2008-02-07Merge branches 'release' and 'video' into releaseLen Brown
Conflicts: include/acpi/acpi_bus.h Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: video: Ignore ACPI video devices that aren't present in hardwareMatthew Garrett
Vendors often ship machines with a choice of integrated or discrete graphics, and use the same DSDT for both. As a result, the ACPI video module will locate devices that may not exist on this specific platform. Attempt to determine whether the device exists or not, and abort the device creation if it do not exist. Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: video: reset brightness on resumeMatthew Garrett
Some machines seem to need the backlight brightness to be reset on resume. Add support for doing so to the video module. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: video: call ACPI notifier chain for ACPI video notificationsZhang Rui
Call notifier chain for display/brightness switch events. The kernel mode graphics driver is interested in this. Sign-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: create notifier chain to get hotkey events to graphics driverZhang Rui
Kernel mode graphics drivers need this ACPI notifier chaine so that they can get notified upon hotkey events. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: video: delete unused display switch on hotkey event codeZhang Rui
Display switching via ACPI control methods are not known to work on any platforms. Further, the X community wants to control the display switching all by themselves without BIOS/AML involvement. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: video: create "brightness_switch_enabled" modparamZhang Rui
Introduce new module parameter for brightness control. "brightness_switch_enabled" is set by default which means nothing changes upon brightness switch events. When "brightness_switch_enabled" is cleared via "echo 0 > /sys/module/video/parameters/brightness_switch_enabled", ACPI will not try to change the brightness level any more. Either X will take charge of this or users can change the brightness level by poking /sys/class/backlight/acpi_videoX/... Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'wmi-2.6.25' into releaseLen Brown
2008-02-07Merge branches 'release' and 'menlo' into releaseLen Brown
Conflicts: drivers/acpi/video.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'stats' into releaseLen Brown
2008-02-07Merge branches 'release', 'misc' and 'misc-2.6.25' into releaseLen Brown
2008-02-07Merge branches 'release' and 'ppc-workaround' into releaseLen Brown
2008-02-07Merge branches 'release' and 'hp-cid' into releaseLen Brown
2008-02-07Merge branches 'release' and 'gpe-ack' into releaseLen Brown
2008-02-07Merge branches 'release' and 'dmi' into releaseLen Brown
2008-02-07Merge branches 'release', 'cpuidle-2.6.25' and 'idle' into releaseLen Brown
2008-02-07Merge branches 'release', 'bugzilla-6217', 'bugzilla-6629', 'bugzilla-6933', ↵Len Brown
'bugzilla-7186', 'bugzilla-8269', 'bugzilla-8570', 'bugzilla-9139', 'bugzilla-9277', 'bugzilla-9341', 'bugzilla-9444', 'bugzilla-9614', 'bugzilla-9643' and 'bugzilla-9644' into release
2008-02-07Merge branches 'release' and 'autoload' into releaseLen Brown
2008-02-07Merge branches 'release', 'asus', 'sony-laptop' and 'thinkpad' into releaseLen Brown
2008-02-07Merge branches 'release', 'acpi_pm_device_sleep_state' and 'battery' into ↵Len Brown
release
2008-02-07cpuidle: Add a poll_idle methodvenkatesh.pallipadi@intel.com
Add a default poll idle state with 0 latency. Provides an option to users to use poll_idle by using 0 as the latency requirement. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: cpuidle: Support C1 idle time accountingvenkatesh.pallipadi@intel.com
Show C1 idle time in /sysfs cpuidle interface. C1 idle time may not be entirely accurate in all cases. It includes the time spent in the interrupt handler after wakeup with "hlt" based C1. But, it will be accurate with "mwait" based C1. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: enable MWAIT for C1 idlevenkatesh.pallipadi@intel.com
Add MWAIT idle for C1 state instead of halt, on platforms that support C1 state with MWAIT. Renames cx->space_id to something more appropriate. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: idle: Fix acpi_safe_halt usages and interrupt enabling/disablingvenkatesh.pallipadi@intel.com
acpi_safe_halt() needs interrupts to be disabled for atomic need_resched check and safe halt. Otherwise we may miss an interrupt and go into halt. acpi_safe_halt() also does not enable interrupts on all return paths. So the callers should handle enable and disable interrupts around it. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07PM: documentation cleanupsPavel Machek
Signed-off-by: Pavel Machek <pavel@suse.cz> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: Export acpi_check_resource_conflictThomas Renninger
Export acpi_check_resource_conflict(), sometimes drivers already have a struct resource at hand so no need to use the wrappers to build a new one. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: track opregion names to avoid driver resource conflicts.Thomas Renninger
Small ACPICA extension to be able to store the name of operation regions in osl.c later In ACPI, AML can define accesses to IO ports and System Memory by Operation Regions. Those are not registered as done by PNPACPI using resource templates (and _CRS/_SRS methods). The IO ports and System Memory regions may get accessed by arbitrary AML code. When native drivers are accessing the same resources bad things can happen (e.g. a critical shutdown temperature of 3000 C every 2 months or so). It is not really possible to register the operation regions via request_resource, as they often overlap with pnp or other resources (e.g. statically setup IO resources below 0x100). This approach stores all Operation Region declarations (IO and System Memory only) at ACPI table parse time. It offers a similar functionality like request_region and let drivers which are known to possibly use the same IO ports and Memory which are also often used by ACPI (hwmon and i2c) check for ACPI interference. A boot parameter acpi_enforce_resources=strict/lax/no is provided, which is default set to lax: - strict: let conflicting drivers fail to load with an error message - lax: let conflicting driver work normal with a warning message - no: no functional change at all Depending on the feedback and the kind of interferences we see, this should be set to strict at later time. Goal of this patch set is: - Identify ACPI interferences in bug reports (very hard to reproduce and to identify) - Find BIOSes for that an ACPI driver should exist for specific HW instead of a native one. - stability in general Provide acpi_check_{mem_}region. Drivers can additionally check against possible ACPI interference by also invoking this shortly before they call request_region. If -EBUSY is returned, the driver must not load. Use acpi_enforce_resources=strict/lax/no options to: - strict: let conflicting drivers fail to load with an error message - lax: let conflicting driver work normal with a warning message - no: no functional change at all Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Len Brown <lenb@kernel.org> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: acpi_pci_irq_find_prt_entry(): use list_for_each_entry() instead of ↵Matthias Kaehlcke
list_for_each() Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: remove duplicated warning messageMiguel Botón
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 <mboton@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07asus_acpi: add support for F3SaLuca Tettamanti
Add support for ASUS F3Sa notebook. Features: - LCD on/off - Brightness - Wifi kill - Bluetooth kill Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Karol Kozimor <sziwan@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06ACPI: create /sys/firmware/acpi/interruptsLen Brown
See Documentation/ABI/testing/sysfs-firmware-acpi Based-on-original-patch-by: Luming Yu <luming.yu@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06ACPI: Taint kernel on ACPI table override (format corrected)Éric Piel
When an ACPI table is overridden (for now this can happen only for DSDT) display a big warning and taint the kernel with flag A. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06ACPI: basic initramfs DSDT override supportMarkus Gaugusch
The basics of DSDT from initramfs. In case this option is selected, populate_rootfs() is called a bit earlier to have the initramfs content available during ACPI initialization. This is a very similar path to the one available at http://gaugusch.at/kernel.shtml but with some update in the documentation, default set to No and the change of populate_rootfs() the "Jeff Mahony way" (which avoids reading the initramfs twice). Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Len Brown <len.brown@intel.com>
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