Piteball/android_kernel_samsung_msm8976
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android_kernel_samsung_msm8976/drivers/acpi
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Lan Tianyu 28fe5c825f ACPI / EC: Restart transaction even when the IBF flag set 
The EC driver works abnormally with IBF flag always set.
IBF means "The host has written a byte of data to the command
or data port, but the embedded controller has not yet read it".
If IBF is set in the EC status and not cleared, this will cause
all subsequent EC requests to fail with a timeout error.

Change the EC driver so that it doesn't refuse to restart a
transaction if IBF is set in the status.  Also increase the
number of transaction restarts to 5, as it turns out that 2
is not sufficient in some cases.

This bug happens on several different machines (Asus V1S,
Dell Latitude E6530, Samsung R719, Acer Aspire 5930G,
Sony Vaio SR19VN and others).

[rjw: Changelog]
References: https://bugzilla.kernel.org/show_bug.cgi?id=14733
References: https://bugzilla.kernel.org/show_bug.cgi?id=15560
References: https://bugzilla.kernel.org/show_bug.cgi?id=15946
References: https://bugzilla.kernel.org/show_bug.cgi?id=42945
References: https://bugzilla.kernel.org/show_bug.cgi?id=48221
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: All <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-05-12 14:03:15 +02:00
..
acpica ACPICA: ACPICA: Fix for _INI regression 2013-05-08 15:31:53 +02:00
apei ACPI / APEI: fix error status check condition for CPER 2013-03-27 00:05:46 +01:00
ac.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
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 IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_lpss.c ACPI / LPSS: make code less confusing for reader 2013-03-25 00:21:49 +01:00
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 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
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
bus.c ACPI: replace kmalloc+memcpy with kmemdup 2013-03-24 23:31:33 +01:00
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 ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
container.c Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
csrt.c ACPI: add support for CSRT table 2013-01-19 22:16:21 +01:00
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: Fix potential problem in acpi_device_get_power() 2013-03-25 15:49:44 +01:00
dock.c ACPI / hotplug: Fix concurrency issues and memory leaks 2013-02-13 14:36:47 +01:00
ec.c ACPI / EC: Restart transaction even when the IBF flag set 2013-05-12 14:03:15 +02:00
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: avoid null pointer deference error 2013-03-25 23:01:00 +01:00
glue.c ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type 2013-03-04 14:23:40 +01:00
hed.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
internal.h Merge branch 'acpi-lpss' 2013-04-28 01:53:41 +02:00
Kconfig Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
Makefile ACPI / scan: Add special handler for Intel Lynxpoint LPSS devices 2013-03-21 22:44:38 +01:00
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: Fix wrong parameter passed to memblock_reserve 2013-04-24 13:50:17 +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 Power management and ACPI updates for 3.10-rc1 2013-04-30 15:21:02 -07:00
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 Power management and ACPI updates for 3.10-rc1 2013-04-30 15:21:02 -07:00
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: ignore BIOS initial backlight value for HP 1000 2013-05-12 14:03:14 +02:00
video_detect.c ACPI: Remove acpi_device dependency in acpi_device_set_id() 2013-03-24 23:49:38 +01:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00