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af1ae78abb
linux/drivers/acpi
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Al Stone af1ae78abb ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE_ONLY 
ACPI hardware reduced mode exists to allow newer platforms to use a
simpler form of ACPI that does not require supporting legacy versions
of the specification and their associated hardware.  This mode was
introduced in the ACPI 5.0 specification.

The ACPI hardware reduced mode is supposed to be used on systems
having the HW_REDUCED_ACPI flag set in the FADT.  ACPICA checks
that flag to determine whether or not it should work in the HW
reduced mode and there are pieces of code in it that will never
be used in that case.

Since some architecutres will always use the ACPI HW reduced mode,
it doesn't make sense for them to ever compile support for anything
else.  Thus, they should set the flag ACPI_REDUCED_HARDWARE to TRUE
in the ACPICA source.  To enable them to do that, introduce a new
kernel configuration option, CONFIG_ACPI_REDUCED_HARDWARE_ONLY, that
will cause the ACPICA's ACPI_REDUCED_HARDWARE flag to be TRUE when
set.

Introducing this configuration item is based on suggestions from Lv
Zheng saying that this does not belong in ACPICA, but rather to the
Linux kernel itself.

References: http://www.spinics.net/lists/linux-acpi/msg46369.html
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Al Stone <al.stone@linaro.org>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 12:28:07 +01:00
..
acpica ACPICA: Remove bool usage from ACPICA. 2014-01-27 23:59:08 +01:00
apei ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
ac.c Merge branch 'acpi-cleanup' 2014-01-12 23:44:09 +01:00
acpi_cmos_rtc.c ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
acpi_extlog.c ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
acpi_ipmi.c ACPI / IPMI: Cleanup coding styles 2013-09-30 19:46:13 +02:00
acpi_lpss.c Revert "ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs" 2014-01-18 14:04:58 +01:00
acpi_memhotplug.c ACPI / memhotplug: add parameter to disable memory hotplug 2014-01-16 01:43:49 +01:00
acpi_pad.c ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
acpi_platform.c ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node 2013-11-14 23:14:43 +01:00
acpi_processor.c Merge branches 'acpi-processor', 'acpi-hotplug', 'acpi-init', 'acpi-pm' and 'acpica' 2014-01-29 11:47:18 +01:00
battery.c Merge branch 'acpi-cleanup' 2014-01-12 23:44:09 +01:00
bgrt.c acpi: bgrt: fix build error due to attribute change 2013-08-22 08:34:39 -07:00
blacklist.c Merge branches 'acpi-gpe', 'acpi-video', 'acpi-thermal', 'acpi-processor', 'acpi-sleep' 2014-01-12 23:46:55 +01:00
bus.c Merge branches 'acpi-processor', 'acpi-hotplug', 'acpi-init', 'acpi-pm' and 'acpica' 2014-01-29 11:47:18 +01:00
button.c Merge branches 'acpi-gpe', 'acpi-video', 'acpi-thermal', 'acpi-processor', 'acpi-sleep' 2014-01-12 23:46:55 +01:00
container.c ACPI / hotplug / driver core: Handle containers in a special way 2013-12-29 15:25:48 +01:00
custom_method.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
debugfs.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
device_pm.c Merge branches 'acpi-processor', 'acpi-hotplug', 'acpi-init', 'acpi-pm' and 'acpica' 2014-01-29 11:47:18 +01:00
dock.c Merge branch 'acpi-hotplug' 2014-01-12 23:45:04 +01:00
ec_sys.c ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c 2014-01-06 00:13:22 +01:00
ec.c Merge branches 'acpi-gpe', 'acpi-video', 'acpi-thermal', 'acpi-processor', 'acpi-sleep' 2014-01-12 23:46:55 +01:00
event.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
fan.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
glue.c ACPI / bind: Move acpi_get_child() to drivers/ide/ide-acpi.c 2013-12-07 01:05:50 +01:00
hed.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
internal.h Merge branch 'acpi-hotplug' 2014-01-12 23:45:04 +01:00
Kconfig ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE_ONLY 2014-02-05 12:28:07 +01:00
Makefile ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00
numa.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
nvs.c ACPI / NVS: Include appropriate header file in nvs.c 2014-01-06 00:13:22 +01:00
osl.c Merge branch 'acpi-hotplug' 2014-01-12 23:45:04 +01:00
pci_irq.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
pci_link.c ACPI / PCI: Include appropriate header file in pci_link.c 2014-01-06 00:13:22 +01:00
pci_root.c ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
pci_slot.c ACPI / PCI: Include appropriate header file in pci_slot.c 2014-01-06 00:13:22 +01:00
power.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
proc.c ACPI / proc: Include appropriate header file in proc.c 2014-01-06 00:13:23 +01:00
processor_core.c Merge branches 'acpi-processor', 'acpi-hotplug', 'acpi-init', 'acpi-pm' and 'acpica' 2014-01-29 11:47:18 +01:00
processor_driver.c ACPI / processor: use ACPI_COMPANION() to get ACPI device 2013-12-07 01:41:01 +01:00
processor_idle.c ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
processor_perflib.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
processor_thermal.c ACPI: correct minor typos 2013-12-07 01:38:45 +01:00
processor_throttling.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI: introduce helper function acpi_has_method() 2013-07-15 01:33:10 +02:00
sbs.c ACPI / SBS: Remove SBS's proc directory 2013-10-12 00:19:44 +02:00
sbshc.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
sbshc.h
scan.c Merge branches 'acpi-processor', 'acpi-hotplug', 'acpi-init', 'acpi-pm' and 'acpica' 2014-01-29 11:47:18 +01:00
sleep.c Merge branches 'acpi-gpe', 'acpi-video', 'acpi-thermal', 'acpi-processor', 'acpi-sleep' 2014-01-12 23:46:55 +01:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c Merge branches 'acpi-processor', 'acpi-hotplug', 'acpi-init', 'acpi-pm' and 'acpica' 2014-01-29 11:47:18 +01:00
tables.c ACPI / tables: Return proper error codes from acpi_table_parse() and fix comment. 2014-01-06 12:33:06 +01:00
thermal.c Merge branches 'acpi-gpe', 'acpi-video', 'acpi-thermal', 'acpi-processor', 'acpi-sleep' 2014-01-12 23:46:55 +01:00
utils.c Merge branch 'acpi-dsm' 2014-01-12 23:45:52 +01:00
video_detect.c ACPI / video: Fix typo in video_detect.c 2013-12-20 15:49:53 +01:00
video.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
wakeup.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00