kernel-fxtec-pro1x/drivers/acpi
Mika Westerberg 10619066a3 ACPI: implement acpi_os_get_timer() according the spec
ACPI Timer() opcode should return monotonically increasing clock with 100ns
granularity according the ACPI 5.0 spec.

Testing the current Timer() implementation with following ASL code (and an
additional debug print in acpi_os_sleep() to get the sleep times dumped out
to dmesg):

	// Test: 10ms
	Store(Timer, Local1)
	Sleep(10)
	Divide(Subtract(Timer, Local1), 10000,, Local1)
	Sleep(Local1)

	// Test: 200ms
	Store(Timer, Local1)
	Sleep(200)
	Divide(Subtract(Timer, Local1), 10000,, Local1)
	Sleep(Local1)

	// Test 1300ms
	Store(Timer, Local1)
	Sleep(1300)
	Divide(Subtract(Timer, Local1), 10000,, Local1)
	Sleep(Local1)

The second sleep value is calculated using Timer(). If the implementation
is good enough we should be able to get the second value pretty close to
the first.

However, the current Timer() gives pretty bad sleep times:

	[   11.488100] ACPI: acpi_os_get_timer() TBD
	[   11.492150] ACPI: Sleep(10)
	[   11.502993] ACPI: Sleep(0)
	[   11.506315] ACPI: Sleep(200)
	[   11.706237] ACPI: Sleep(0)
	[   11.709550] ACPI: Sleep(1300)
	[   13.008929] ACPI: Sleep(0)

Fix this with the help of ktime_get(). Once the fix is applied and run
against the same ASL code we get:

	[   11.486786] ACPI: Sleep(10)
	[   11.499029] ACPI: Sleep(12)
	[   11.512350] ACPI: Sleep(200)
	[   11.712282] ACPI: Sleep(200)
	[   11.912170] ACPI: Sleep(1300)
	[   13.211577] ACPI: Sleep(1300)

That is much more closer to the values we expected.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-27 21:38:15 +02:00
..
acpica ACPICA: ACPICA: Fix for _INI regression 2013-05-08 15:31:53 +02:00
apei Merge branch 'acpi-fixes' 2013-06-07 12:35:23 +02:00
ac.c ACPI / AC: Add sleep quirk for Thinkpad e530 2013-05-12 14:03:15 +02:00
acpi_cmos_rtc.c ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
acpi_i2c.c ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() 2013-04-02 15:30:41 +02:00
acpi_ipmi.c
acpi_lpss.c ACPI / LPSS: register clock device for Lynxpoint DMA properly 2013-05-14 10:23:58 +05:30
acpi_memhotplug.c ACPI / memhotplug: Remove info->failed bit 2013-03-25 00:36:25 +01:00
acpi_pad.c ACPI / acpi_pad: Used PTR_RET 2013-03-25 00:13:15 +01:00
acpi_platform.c ACPI / scan: Add special handler for Intel Lynxpoint LPSS devices 2013-03-21 22:44:38 +01:00
battery.c ACPI / battery: Make sure all spaces are in correct places 2013-06-19 23:34:58 +02:00
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: Remove useless initializers 2013-06-19 23:34:58 +02:00
button.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
cm_sbs.c
container.c Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
custom_method.c The sweeping change is to make add_taint() explicitly indicate whether to disable 2013-02-25 15:41:43 -08:00
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: Do not execute _PS0 for devices without _PSC during initialization 2013-06-07 12:33:57 +02:00
dock.c ACPI / hotplug: Fix concurrency issues and memory leaks 2013-02-13 14:36:47 +01:00
ec.c ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan 2013-06-27 21:37:18 +02:00
ec_sys.c ACPI / EC: access user space with get_user()/put_user() 2013-06-19 23:29:20 +02:00
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: avoid null pointer deference error 2013-03-25 23:01:00 +01:00
glue.c ACPI: add _STA evaluation at do_acpi_find_child() 2013-06-19 23:34:58 +02:00
hed.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
internal.h ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
Kconfig Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
Makefile ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
numa.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c ACPI: implement acpi_os_get_timer() according the spec 2013-06-27 21:38:15 +02:00
pci_irq.c PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers 2013-02-16 11:58:34 -07:00
pci_link.c ACPI: Set length even for TYPE_END_TAG acpi resource 2013-03-24 01:00:38 +01:00
pci_root.c PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check 2013-05-17 14:12:06 -06:00
pci_slot.c PCI/ACPI: Handle PCI slot devices when creating/destroying PCI buses 2013-04-12 15:38:25 -06:00
power.c Merge branch 'acpi-pm' 2013-04-28 01:54:00 +02:00
proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
processor_core.c ACPI / processor: Remove redundant NULL check before kfree 2013-03-04 14:23:39 +01:00
processor_driver.c ACPI / PM: Move processor suspend/resume to syscore_ops 2013-05-12 14:03:14 +02:00
processor_idle.c ACPI / PM: Move processor suspend/resume to syscore_ops 2013-05-12 14:03:14 +02:00
processor_perflib.c acpi: Export the acpi_processor_get_performance_info 2013-03-06 10:00:34 -05:00
processor_thermal.c ACPI / processor_thermal: avoid null pointer deference error 2013-03-25 23:01:01 +01:00
processor_throttling.c ACPI: suppress compiler warnings in processor_throttling.c 2013-03-25 00:05:48 +01:00
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 proc: Supply a function to remove a proc entry by PDE 2013-05-01 17:29:46 -04:00
sbshc.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.h
scan.c ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
sleep.c ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M 2013-03-27 00:04:53 +01:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPI / hotplug: Make acpi_hotplug_profile_ktype static 2013-03-19 00:16:15 +01:00
tables.c ACPICA: Cleanup table handler naming conflicts. 2013-01-11 13:10:16 +01:00
thermal.c ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points 2013-04-26 13:34:40 +02:00
utils.c ACPI: Add acpi_handle_<level>() interfaces 2012-11-21 23:20:22 +01:00
video.c ACPI / video: Do not bind to device objects with a scan handler 2013-06-10 13:00:29 +02:00
video_detect.c ACPI / video: Add "Asus UL30A" to ACPI video detect blacklist 2013-05-23 01:41:45 +02:00
wakeup.c