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6c17ee44d5
linux/drivers/acpi
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Andy Shevchenko 6c17ee44d5 ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA 
The LPSS DMA controller does not have _PS0 and _PS3 methods. Moreover it can be
powered off automatically whenever the last LPSS device goes down. In case of
no power any access to the DMA controller will hang the system. The behaviour
is reproduced on some HP laptops based on Intel Bay Trail [1] as well as on
Asus T100 transformer.

This patch introduces a so called 'proxy' device that has the knobs to handle a
power of the LPSS island. When the system needs to program the DMA controller
it calls to the ACPI LPSS power domain callbacks that wake or suspend the
'proxy' device.

[1] http://www.spinics.net/lists/dmaengine/msg01514.html

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Scott Ashcroft <scott.ashcroft@talk21.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-11-11 23:44:19 +01:00
..
acpica ACPICA: iASL/Disassembler: Add support for hardware summary mapfiles. 2014-10-21 00:39:40 +02:00
apei ACPI and power management updates for 3.17-rc1 2014-08-06 20:34:19 -07:00
ac.c Revert "ACPI / AC: Remove AC's proc directory." 2014-07-07 01:13:46 +02:00
acpi_cmos_rtc.c ACPI / RTC: Fix CMOS RTC opregion handler accesses to wrong addresses 2014-09-08 15:38:41 +02:00
acpi_extlog.c ACPI and power management updates for 3.17-rc1 2014-08-06 20:34:19 -07:00
acpi_ipmi.c ACPI / IPMI: Cleanup coding styles 2013-09-30 19:46:13 +02:00
acpi_lpss.c ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA 2014-11-11 23:44:19 +01:00
acpi_memhotplug.c ACPI / scan: always register memory hotplug scan handler 2014-05-30 16:04:36 +02:00
acpi_pad.c ACPI / PAD: Use time_before() for time comparison 2014-05-27 01:38:23 +02:00
acpi_platform.c ACPI and power management updates for 3.18-rc2 2014-10-24 11:29:31 -07:00
acpi_pnp.c ACPI and power management updates for 3.18-rc1 2014-10-09 16:07:43 -04:00
acpi_processor.c ACPI: Don't use acpi_lapic in ACPI core code 2014-07-21 13:50:58 +02:00
battery.c ACPI / battery: Replace strnicmp with strncasecmp 2014-09-24 23:26:32 +02:00
battery.h ACPI / battery: move some ACPI_BATTERY_* definitions to header 2014-03-19 01:57:46 +01:00
bgrt.c acpi: bgrt: fix build error due to attribute change 2013-08-22 08:34:39 -07:00
blacklist.c ACPI / blacklist: add Win8 OSI quirks for some Dell laptop models 2014-09-24 23:22:05 +02:00
bus.c ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug() 2014-09-15 13:15:34 -06:00
button.c ACPI / button: Do not propagate wakeup-from-suspend events 2014-07-23 00:59:04 +02:00
cm_sbs.c ACPI: Revert "ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c" 2014-05-06 01:52:09 +02:00
container.c ACPI / hotplug: Generate online uevents for ACPI containers 2014-09-21 02:58:18 +02:00
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 ACPI and power management updates for 3.18-rc2 2014-10-24 11:29:31 -07:00
dock.c ACPI / dock: Drop dock_device_ids[] table 2014-04-07 14:11:35 +02:00
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 ACPI / EC: Fix regression due to conflicting firmware behavior between Samsung and Acer. 2014-10-29 16:52:35 +01:00
event.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
fan.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-10-24 11:21:43 -07:00
glue.c ACPI / scan: Add bind/unbind callbacks to struct acpi_scan_handler 2014-02-11 00:35:46 +01:00
hed.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
int340x_thermal.c Thermal: introduce int3400 thermal driver 2014-10-10 13:57:09 +08:00
internal.h ACPI / fan: use acpi_device_xxx_power instead of acpi_bus equivelant 2014-10-10 13:57:12 +08:00
Kconfig Thermal: int340x thermal: select ACPI fan driver 2014-10-17 14:30:41 +08:00
Makefile ACPI: introduce ACPI int340x thermal scan handler 2014-09-11 23:35:15 +08:00
numa.c ACPI / numa: Use __weak, not the gcc-specific version 2014-02-03 10:39:43 -07:00
nvs.c ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem. 2014-05-27 18:13:08 +02:00
osl.c Merge branch 'acpi-pm' 2014-10-07 01:17:50 +02:00
pci_irq.c x86, irq, PCI: Keep IRQ assignment for runtime power management 2014-08-29 13:38:00 +02:00
pci_link.c ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
pci_root.c ACPI: Support _OSI("Darwin") correctly 2014-09-24 23:31:12 +02:00
pci_slot.c ACPI / PCI: Include appropriate header file in pci_slot.c 2014-01-06 00:13:22 +01:00
power.c ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
proc.c ACPI / proc: remove unneeded NULL check 2014-02-05 01:06:21 +01:00
processor_core.c ACPI / processor: use container_of instead of casting first structure member 2014-09-24 23:13:02 +02:00
processor_driver.c ACPI / processor: Make acpi_cpu_soft_notify() process CPU FROZEN events 2014-08-06 22:22:03 +02:00
processor_idle.c ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock 2014-09-03 23:05:55 +02:00
processor_pdc.c ACPI / processor: Introduce ARCH_MIGHT_HAVE_ACPI_PDC 2014-07-21 13:50:58 +02:00
processor_perflib.c ACPI / processor: use acpi_evaluate_ost() to replace open-coded version 2014-02-21 00:27:47 +01:00
processor_thermal.c ACPI: correct minor typos 2013-12-07 01:38:45 +01:00
processor_throttling.c ACPI / processor: Rework processor throttling with work_on_cpu() 2014-02-27 00:21:05 +01:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI / resources: only reject zero length resources based at address zero 2014-07-07 22:11:09 +02:00
sbs.c ACPI / SBS: Fix check in acpi_ac_get_present() 2014-09-28 01:27:42 +02:00
sbshc.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
sbshc.h
scan.c ACPI: Use ACPI companion to match only the first physical device 2014-10-27 18:41:46 +01:00
sleep.c ACPI / sleep: Rework the handling of ACPI GPE wakeup from suspend-to-idle 2014-09-30 21:06:07 +02:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPICA: Events: Reduce source code difference for the ACPI_EVENT_FLAG_HANDLE renaming. 2014-10-21 00:39:40 +02:00
tables.c ACPI: use kstrto*() instead of simple_strto*() 2014-06-17 14:01:56 +02:00
thermal.c Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h 2014-10-10 13:57:15 +08:00
utils.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-10-24 11:21:43 -07:00
video_detect.c ACPI / video: force vendor backlight on Lenovo Ideapad Z570 2014-09-24 23:09:41 +02:00
video.c Merge back 'acpi-video' material for v3.18. 2014-10-03 15:46:02 +02:00
wakeup.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00