redonkable/freescale-linux-fslc
redonkable/freescale-linux-fslc
1
0
Fork 0
Code Releases Activity
freescale-linux-fslc/drivers/acpi
History
Len Brown 11ccc0f249 ACPI: thermal trip points are read-only 
/proc/acpi/thermal_zone/*/trip_points displays
what the kernel reads from the BIOS via ACPI.

If you echo a string of ':' deliminted numbers to this file
then it will change what it displays.

But it shouldn't, since the kernel has no way to communicate
these changes to ACPI thermal zones.  ACPI thermal zone
trip points are read-only.

The kernel does have the opportunity to ask the BIOS to change
the trip points with _SCP - Set Cooling Policy.

Request Active Cooling Mode:
# echo 0 > /proc/acpi/thermal_zone/*/cooling_policy

Request Passive Cooling Mode:
# echo 1 > /proc/acpi/thermal_zone/*/cooling_policy

However, in practice it is quite rare for the BIOS
to support the optional _SCP, and it is even more rare
for the BIOS to export an _SCP that actually changes
the trip points.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-04-30 22:36:01 -04:00
..
dispatcher ACPICA: fix AML mutex re-entrancy 2007-02-15 16:13:16 -05:00
events ACPICA: revert "acpi_serialize" changes 2007-03-15 04:10:36 -04:00
executer ACPICA: revert "acpi_serialize" changes 2007-03-15 04:10:36 -04:00
hardware ACPI: resolve HP nx6125 S3 immediate wakeup regression 2007-03-12 14:49:26 -04:00
namespace ACPICA: revert "acpi_serialize" changes 2007-03-15 04:10:36 -04:00
parser ACPICA: Update copyright to 2007. 2007-02-02 21:14:31 -05:00
resources ACPI: fix boot hang w/o "noapic" on MSI MS-6390-L 2007-03-08 03:42:42 -05:00
sleep Pull bugzilla-7887 into release branch 2007-02-16 22:11:57 -05:00
tables ACPI: acpi_unload_table_id() always returns error 2007-02-16 18:34:40 -05:00
utilities ACPICA: fix AML mutex re-entrancy 2007-02-15 16:13:16 -05:00
ac.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
acpi_memhotplug.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
asus_acpi.c backlight: Separate backlight properties from backlight ops pointers 2007-02-20 09:26:53 +00:00
battery.c Pull bugzilla-7200 into release branch 2007-02-16 22:11:37 -05:00
bay.c Pull fluff into release branch 2007-02-16 22:10:32 -05:00
blacklist.c ACPI: make blacklist more verbose 2007-03-09 21:19:05 -05:00
bus.c Pull bugzilla-7887 into release branch 2007-02-16 22:11:57 -05:00
button.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
cm_sbs.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
container.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
debug.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
dock.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
ec.c ACPI: ec: fix race in status register access 2007-03-09 23:16:23 -05:00
event.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
fan.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
glue.c ACPI: remove non-PNPACPI version of get_rtc_dev() 2007-02-15 22:46:42 -05:00
i2c_ec.c Pull fluff into release branch 2007-02-16 22:10:32 -05:00
i2c_ec.h ACPI: add support for Smart Battery 2006-07-01 16:36:14 -04:00
ibm_acpi.c ACPI: ibm-acpi: allow module to load when acpi notifiers can't be set (v2) 2007-03-16 01:07:18 -04:00
Kconfig Pull misc-for-upstream into release branch 2007-03-09 23:19:50 -05:00
Makefile ACPI: hotkey: remove driver, per feature-removal-schedule.txt 2007-02-16 21:45:57 -05:00
numa.c ACPI: acpi_table_parse_madt_family() is not MADT specific 2007-02-13 02:58:52 -05:00
osl.c Pull remove-hotkey into release branch 2007-02-16 22:11:02 -05:00
pci_bind.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
pci_irq.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
pci_link.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
pci_root.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
power.c Pull misc-for-upstream into release branch 2007-03-09 23:19:50 -05:00
processor_core.c Pull fluff into release branch 2007-02-16 22:10:32 -05:00
processor_idle.c [PATCH] i386: add command line option "local_apic_timer_c2_ok" 2007-03-23 10:21:02 -07:00
processor_perflib.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
processor_thermal.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
processor_throttling.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
sbs.c Pull bugzilla-7897 into release branch 2007-02-16 22:12:04 -05:00
scan.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
system.c ACPI: delete extra #defines in /drivers/acpi/ drivers 2007-02-12 23:50:52 -05:00
tables.c Revert "ACPI: parse 2nd MADT by default" 2007-03-30 14:16:10 -04:00
thermal.c ACPI: thermal trip points are read-only 2007-04-30 22:36:01 -04:00
toshiba_acpi.c backlight: Separate backlight properties from backlight ops pointers 2007-02-20 09:26:53 +00:00
utils.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
video.c ACPI: video: Fix spelling and grammar mistakes 2007-03-09 21:37:07 -05:00