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Rafael J. Wysocki e78adb7595 ACPI / PM: Always evaluate _PSn after setting power resources 
The ACPI specitication (ACPI 5, Sections 7.2.8 - 7.2.11) requires
that the _PSn (n = 0..3) method, if present, be executed after the
power resources for the given device power state have been set
appropriately.  However, acpi_device_set_power() does that only
if the new power state is going to be higher-power (lower-number)
than the power state the device is in already.  Otherwise, the
ordering is reverse to protect against situations in which _PSn
might access device registers unavailable after configuring the
power resources for power state Dn (D3 meaning D3hot).

Such situations are very unlikely to happen, though, and _PSn may
actually be implemented with the assumption that power resources
have been configured for power state Dn in advance, so change the
code to follow the specification literally.

This change was previously porposed in a different form by Lv Zheng.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 		2013-01-22 12:56:04 +01:00
..
acpica ACPICA: Remove useless mini-C library. 2013-01-03 13:09:10 +01:00
apei ACPI / APEI: Fix the returned value in erst_dbg_read 2013-01-03 13:10:20 +01:00
Kconfig Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-12-14 10:03:23 -08:00
Makefile ACPI / PCI: Move the _PRT setup and cleanup code to pci-acpi.c 2013-01-03 13:09:41 +01:00
ac.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
acpi_i2c.c i2c / ACPI: add ACPI enumeration support 2012-11-23 12:23:40 +01:00
acpi_ipmi.c IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_memhotplug.c Merge branch 'acpi-scan' into acpi-pm 2013-01-17 14:10:27 +01:00
acpi_pad.c ACPI: strict_strtoul() and printk() cleanup in acpi_pad 2012-11-15 00:16:00 +01:00
acpi_platform.c ACPI / platform: include missed header into acpi_platform.c 2012-11-27 13:44:58 +01:00
battery.c ACPI / battery: Correct battery capacity values on Thinkpads 2012-11-16 22:28:58 +01:00
bgrt.c efi: Fix the ACPI BGRT driver for images located in EFI boot services memory 2012-09-29 12:21:03 -07:00
blacklist.c acpi: delete module.h include from files explicitly not needing it 2011-10-31 19:30:33 -04:00
bus.c ACPI / PM: Move device power management functions to device_pm.c 2013-01-19 22:09:22 +01:00
button.c ACPI/button: convert to module_acpi_driver() 2012-09-21 13:38:29 -04:00
cm_sbs.c
…
container.c ACPI: Make acpi_bus_scan() and acpi_bus_add() take only one argument 2013-01-03 13:09:40 +01:00
custom_method.c ACPI: Split out custom_method functionality into an own driver 2011-05-29 01:50:40 -04:00
debugfs.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
device_pm.c ACPI / PM: Always evaluate _PSn after setting power resources 2013-01-22 12:56:04 +01:00
dock.c ACPI / scan: Drop the second argument of acpi_bus_trim() 2013-01-15 13:23:53 +01:00
ec.c ACPI / EC: Don't count a SCI interrupt as a false one 2012-11-15 00:15:59 +01:00
ec_sys.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
event.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
fan.c ACPI/fan: convert to module_acpi_driver() 2012-09-21 13:39:03 -04:00
glue.c Merge branch 'acpi-scan' into acpi-pm 2013-01-17 14:10:27 +01:00
hed.c Driver core updates for 3.8-rc1 2012-12-11 13:13:55 -08:00
internal.h ACPI / PM: Move device power management functions to device_pm.c 2013-01-19 22:09:22 +01:00
numa.c ACPI: Only count valid srat memory structures 2012-08-03 00:15:53 -04:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-12-14 10:03:23 -08:00
pci_irq.c PCI changes for the v3.8 merge window: 2012-12-13 12:14:47 -08:00
pci_link.c acpi: use KERN_CONT in printk() continuation lines 2012-05-08 08:55:26 -07:00
pci_root.c ACPI / PCI: Move the _PRT setup and cleanup code to pci-acpi.c 2013-01-03 13:09:41 +01:00
pci_slot.c PCI/ACPI: Use acpi_pci_root info rather than looking it up again 2012-09-24 15:29:40 -06:00
power.c ACPI: Use system level attribute of wakeup power resources 2013-01-17 14:11:07 +01:00
proc.c ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device() 2012-11-22 23:20:31 +01:00
processor_core.c cpufreq / ACPI: Fix not loading acpi-cpufreq driver regression 2012-07-12 22:39:32 +02:00
processor_driver.c ACPI: update ej_event interface to take acpi_device 2013-01-15 13:24:59 +01:00
processor_idle.c cpuidle: Measure idle state durations with monotonic clock 2012-11-27 14:17:58 +01:00
processor_perflib.c ACPI: Add fixups for AMD P-state figures 2012-09-09 22:05:02 +02:00
processor_thermal.c ACPI: Do cpufreq clamping for throttling per package v2 2012-03-22 02:16:14 -04:00
processor_throttling.c ACPI throttling: fix endian bug in acpi_read_throttling_status() 2012-03-30 16:06:12 -04:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI: remove unnecessary INIT_LIST_HEAD 2012-11-27 13:49:36 +01:00
sbs.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
sbshc.c ACPI/sbshc: convert to module_acpi_driver() 2012-09-21 13:39:40 -04:00
sbshc.h
…
scan.c ACPI: Use system level attribute of wakeup power resources 2013-01-17 14:11:07 +01:00
sleep.c ACPI / PM: Consolidate suspend-specific and hibernate-specific code 2013-01-19 22:09:23 +01:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPICA: Fix AcpiSrc caused divergences. 2012-11-15 00:31:23 +01:00
tables.c ACPI: Harden acpi_table_parse_entries() against BIOS bug 2012-10-06 15:51:49 -04:00
thermal.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2012-12-12 07:57:13 -08:00
utils.c ACPI: Add acpi_handle_<level>() interfaces 2012-11-21 23:20:22 +01:00
video.c ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000 2012-12-04 23:30:19 +01:00
video_detect.c ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist 2012-11-30 13:02:50 +01:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00