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2014-03-19ACPI / battery: call ACPI notifier chain in acpi_battery_notifyAlexander Mezin
Allow other drivers to subscribe to battery status notifications. Just like AC driver does. Signed-off-by: Alexander Mezin <mezin.alexander@gmail.com> Acked-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-19ACPI / battery: move some ACPI_BATTERY_* definitions to headerAlexander Mezin
ACPI_BATTERY_CLASS is used in multiple places. Also, I'll use ACPI_BATTERY_NOTIFY_STATUS inside AC driver in one of following patches. So, create a header file and move ACPI_BATTERY_CLASS and ACPI_BATTERY_NOTIFY_* definitions into it. Also, remove copy of ACPI_BATTERY_CLASS from sbs.c Signed-off-by: Alexander Mezin <mezin.alexander@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18ACPICA: Revert "Headers: Deploy #pragma pack (push) and (pop)."Robert Moore
This reverts commit aae576e5faefa8ba70647efa320d4747b6375f1e. Push and Pop are not portable "enough", and caused problems for some ACPICA customers. Signed-off-by: Robert Moore <Robert.Moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18Merge branch 'acpi-config' into acpicaRafael J. Wysocki
Conflicts: include/acpi/platform/aclinux.h
2014-03-18ACPICA: Prevent infinite loops when traversing corrupted lists.Bob Moore
This change hardens the ACPICA code to detect circular linked object lists and prevent an infinite loop if such corruption exists. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18ACPICA: Debugger: Add missing objects; Traverse linked listsBob Moore
This change adds support for two missing objects, the "extra" and "data" secondary objects, as well as adding support to traverse and display linked lists related to ACPICA objects. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18ACPICA: Add text: ACPICA policy for new _OSI strings. No functional change.Bob Moore
Adds further information about why new _OSI strings should be adopted by all hosts as soon as possible. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18ACPICA: Update for _PRP predefined name.Bob Moore
Allow objects of type "reference" in the second subpackage element. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18ACPICA: Cleanup/improve global variable declarations.Lv Zheng
This change cleans up the entire global variable mechaninism including the related macros. Also reduces warnings from the "sparse" utility in the Linux environment. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-18ACPICA: Comment update - no functional change.Bob Moore
Change all instances of "sub-package" to "subpackage" for consistency. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-17Merge branch 'acpi-fan'Rafael J. Wysocki
* acpi-fan: ACPI / fan: do nothing in suspend and poweroff callback
2014-03-17Merge branch 'acpi-ost'Rafael J. Wysocki
* acpi-ost: ACPI: Drop acpi_evaluate_hotplug_ost() and ACPI_HOTPLUG_OST ACPI: use device name LNXSYBUS.xx for ACPI \_SB and \_TZ objects ACPI / processor: use acpi_evaluate_ost() to replace open-coded version ACPI / PAD / xen: use acpi_evaluate_ost() to replace open-coded version ACPI / PAD: use acpi_evaluate_ost() to replace open-coded version ACPI: rename acpi_evaluate_hotplug_ost() to acpi_evaluate_ost()
2014-03-17Merge branch 'acpi-config'Rafael J. Wysocki
* acpi-config: ACPI: Remove Kconfig symbol ACPI_PROCFS ACPI / APEI: Remove X86 redundant dependency for APEI GHES. ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE_ONLY
2014-03-17Merge branch 'acpi-hotplug'Rafael J. Wysocki
* acpi-hotplug: ACPI / hotplug: Rework deferred execution of acpi_device_hotplug() ACPI / dock: Update copyright notice ACPI / dock: Drop remove_dock_dependent_devices() ACPI / dock: Drop struct acpi_dock_ops and all code related to it ACPI / ATA: Add hotplug contexts to ACPI companions of SATA devices ACPI / dock: Add .uevent() callback to struct acpi_hotplug_context ACPI / dock: Use callback pointers from devices' ACPI hotplug contexts ACPI / dock: Use ACPI device object pointers instead of ACPI handles ACPI / hotplug: Add .fixup() callback to struct acpi_hotplug_context ACPI / hotplug / PCI: Do not clear event callback pointer for docks ACPI / dock: Associate dock platform devices with ACPI device objects ACPI / dock: Pass ACPI device pointer to acpi_device_is_battery() ACPI / dock: Dispatch dock notifications from the global notify handler
2014-03-17Merge branch 'acpi-pci-hotplug'Rafael J. Wysocki
* acpi-pci-hotplug: (23 commits) ACPI / hotplug / PCI: Use pci_device_is_present() ACPI / hotplug / PCI: Add ACPIPHP contexts to devices handled by PCIeHP ACPI / hotplug / PCI: Rename register_slot() to acpiphp_add_context() ACPI / hotplug / PCI: Execute _EJ0 under the ACPI scan lock ACPI / hotplug / PCI: Rework acpiphp_check_host_bridge() ACPI / hotplug / PCI: Hotplug notifications from acpi_bus_notify() ACPI / hotplug / PCI: Simplify acpi_install_hotplug_notify_handler() ACPI / hotplug / PCI: Rework the handling of eject requests ACPI / hotplug / PCI: Consolidate ACPIPHP with ACPI core hotplug ACPI / hotplug / PCI: Define hotplug context lock in the core ACPI / hotplug: Fix potential race in acpi_bus_notify() ACPICA: Introduce acpi_get_data_full() and rework acpi_get_data() ACPI / hotplug / PCI: Do not pass ACPI handle to hotplug_event() ACPI / hotplug / PCI: Use acpi_handle_debug() in hotplug_event() ACPI / hotplug / PCI: Simplify hotplug_event() ACPI / hotplug / PCI: Drop crit_sect locking ACPI / hotplug / PCI: Drop acpiphp_bus_add() ACPI / hotplug / PCI: Store acpi_device pointer in acpiphp_context ACPI / hotplug / PCI: Rework acpiphp_no_hotplug() ACPI / hotplug / PCI: Drop acpiphp_bus_trim() ...
2014-03-13ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep statesRafael J. Wysocki
If the HW Reduced ACPI mode bit is set in the FADT, ACPICA uses the optional sleep control and sleep status registers for making the system enter sleep states (including S5), so it is not possible to use system sleep states or power it off using ACPI if the HW Reduced ACPI mode bit is set and those registers are not available. For this reason, add a new function, acpi_sleep_state_supported(), checking if the HW Reduced ACPI mode bit is set and whether or not system sleep states are usable in that case in addition to checking the return value of acpi_get_sleep_type_data() and make the ACPI sleep setup routines use that function to check the availability of system sleep states. Among other things, this prevents the kernel from attempting to use ACPI for powering off HW Reduced ACPI systems without the sleep control and sleep status registers, because ACPI power off doesn't have a chance to work on them. That allows alternative power off mechanisms that may actually work to be used on those systems. The affected machines include Dell Venue 8 Pro, Asus T100TA, Haswell Desktop SDP and Ivy Bridge EP Demo depot. References: https://bugzilla.kernel.org/show_bug.cgi?id=70931 Reported-by: Adam Williamson <awilliam@redhat.com> Tested-by: Aubrey Li <aubrey.li@linux.intel.com> Cc: 3.4+ <stable@vger.kernel.org> # 3.4+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-09Revert "ACPI / sleep: pm_power_off needs more sanity checks to be installed"Rafael J. Wysocki
Revert commit 3130497f5bab ("ACPI / sleep: pm_power_off needs more sanity checks to be installed") that breaks power ACPI power off on a lot of systems, because it checks wrong registers. Fixes: 3130497f5bab ("ACPI / sleep: pm_power_off needs more sanity checks to be installed") Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-08Merge branches 'acpi-resources', 'acpi-ec' and 'acpi-sleep'Rafael J. Wysocki
* acpi-resources: ACPI / resources: ignore invalid ACPI device resources * acpi-ec: ACPI / EC: Clear stale EC events on Samsung systems * acpi-sleep: ACPI / sleep: pm_power_off needs more sanity checks to be installed
2014-03-06ACPI / EC: Clear stale EC events on Samsung systemsKieran Clancy
A number of Samsung notebooks (530Uxx/535Uxx/540Uxx/550Pxx/900Xxx/etc) continue to log events during sleep (lid open/close, AC plug/unplug, battery level change), which accumulate in the EC until a buffer fills. After the buffer is full (tests suggest it holds 8 events), GPEs stop being triggered for new events. This state persists on wake or even on power cycle, and prevents new events from being registered until the EC is manually polled. This is the root cause of a number of bugs, including AC not being detected properly, lid close not triggering suspend, and low ambient light not triggering the keyboard backlight. The bug also seemed to be responsible for performance issues on at least one user's machine. Juan Manuel Cabo found the cause of bug and the workaround of polling the EC manually on wake. The loop which clears the stale events is based on an earlier patch by Lan Tianyu (see referenced attachment). This patch: - Adds a function acpi_ec_clear() which polls the EC for stale _Q events at most ACPI_EC_CLEAR_MAX (currently 100) times. A warning is logged if this limit is reached. - Adds a flag EC_FLAGS_CLEAR_ON_RESUME which is set to 1 if the DMI system vendor is Samsung. This check could be replaced by several more specific DMI vendor/product pairs, but it's likely that the bug affects more Samsung products than just the five series mentioned above. Further, it should not be harmful to run acpi_ec_clear() on systems without the bug; it will return immediately after finding no data waiting. - Runs acpi_ec_clear() on initialisation (boot), from acpi_ec_add() - Runs acpi_ec_clear() on wake, from acpi_ec_unblock_transactions() References: https://bugzilla.kernel.org/show_bug.cgi?id=44161 References: https://bugzilla.kernel.org/show_bug.cgi?id=45461 References: https://bugzilla.kernel.org/show_bug.cgi?id=57271 References: https://bugzilla.kernel.org/attachment.cgi?id=126801 Suggested-by: Juan Manuel Cabo <juanmanuel.cabo@gmail.com> Signed-off-by: Kieran Clancy <clancy.kieran@gmail.com> Reviewed-by: Lan Tianyu <tianyu.lan@intel.com> Reviewed-by: Dennis Jansen <dennis.jansen@web.de> Tested-by: Kieran Clancy <clancy.kieran@gmail.com> Tested-by: Juan Manuel Cabo <juanmanuel.cabo@gmail.com> Tested-by: Dennis Jansen <dennis.jansen@web.de> Tested-by: Maurizio D'Addona <mauritiusdadd@gmail.com> Tested-by: San Zamoyski <san@plusnet.pl> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-05ACPI / thermal: make acpi_thermal_check asynchronous on resumeAaron Lu
On resume we do not need to wait for acpi_thermal_check to finish. Instead, we can run it asynchronously and not block the whole system resume. Also, we make sure when we are suspending again, previously queued work for acpi_thermal_check is done. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-05ACPI / hotplug: Rework deferred execution of acpi_device_hotplug()Rafael J. Wysocki
Since the only function executed by acpi_hotplug_execute() is acpi_device_hotplug() and it only is called by the ACPI core, simplify its definition so that it only takes two arguments, the ACPI device object pointer and event code, rename it to acpi_hotplug_schedule() and move its header from acpi_bus.h to the ACPI core's internal header file internal.h. Modify the definition of acpi_device_hotplug() so that its first argument is an ACPI device object pointer and modify the definition of struct acpi_hp_work accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Toshi Kani <toshi.kani@hp.com>
2014-03-04ACPI / PM: Resume runtime-suspended devices later during system suspendRafael J. Wysocki
Runtime-suspended devices are resumed during system suspend by acpi_subsys_prepare() for two reasons: First, because they may need to be reprogrammed in order to change their wakeup settings and, second, because they may need to be operatonal for their children to be successfully suspended. That is a problem, though, if there are many runtime-suspended devices that need to be resumed this way during system suspend, because the .prepare() PM callbacks of devices are executed sequentially and the times taken by them accumulate, which may increase the total system suspend time quite a bit. For this reason, move the resume of runtime-suspended devices up to the next phase of device suspend (during system suspend), except for the ones that have power.ignore_children set. The exception is made, because the devices with power.ignore_children set may still be necessary for their children to be successfully suspended (during system suspend) and they won't be resumed automatically as a result of the runtime resume of their children. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-03ACPI / sleep: pm_power_off needs more sanity checks to be installedLi, Aubrey
Sleep control and status registers need santity checks as well before ACPI installs acpi_power_off to pm_power_off hook. The checking code in acpi_enter_sleep_state() is too late, we should not allow a not-working pm_power_off function to be hooked up. Signed-off-by: Aubrey Li <aubrey.li@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-02ACPI / tables: Replace printk with pr_*Hanjun Guo
This patch just does some cleanup to replace printk with pr_*, and introduces pr_fmt() to remove all PREFIXs in tables.c, no functional change. Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-01ACPI / resources: ignore invalid ACPI device resourcesZhang Rui
ACPI table may export resource entry with 0 length. But the current code interprets this kind of resource in a wrong way. It will create a resource structure with res->end = acpi_resource->start + acpi_resource->len - 1; This patch fixes a problem on my machine that a platform device fails to be created because one of its ACPI IO resource entry (start = 0, end = 0, length = 0) is translated into a generic resource with start = 0, end = 0xffffffff. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Do not abort _PRT repair on a single subpackage failure.Bob Moore
Always examine all subpackages for reversed entries. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Harden _PRT repair code; check for minimum package length.Bob Moore
This change prevents a fault during the repair by checking up front if the _PRT subpackage contains the minimum number of elements (4). Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Restore code that repairs NULL package elements in return values.Lv Zheng
The original code was lost accidently, it was not generated along with the following commit of mechanism improvements and thus not get merged: Commit: d5a36100f62fa6db5541344e08b361b34e9114c5 Subject: ACPICA: Add mechanism for early object repairs on a per-name basis Adds the framework to allow object repairs very early in the return object analysis. Enables repairs like string->unicode, etc. This patch restores the implementation of the NULL element repair code for ACPI_RTYPE_NONE. In the original design, ACPI_RTYPE_NONE is defined to collect simple NULL object repairs. Lv Zheng. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=67901 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Cc: 3.10+ <stable@vger.kernel.org> # 3.10+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Properly handle NULL entries in _PRT return packages.Lv Zheng
This change enables proper handling of NULL package entries in a _PRT return value, during construction of the PCI routing table. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Update conditional compilation flags for resource dump functions.Lv Zheng
Corrects ACPI_DISASSEMBLER to the compile conditions. The wrong condition was introduced by this commit: Commit: 3334861b1e9947631230b573eba27bcd778b93c8 Subject: ACPICA: Update the conditions to enable the utility resource dump strings. This was detected in the ACPICA upstream. Linux is not affected by the wrong commit as the disassembler is not shipped in the Linux. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Predefined names: Add support for the _PRP method.Bob Moore
This is not an official predefined name yet, but we add it to assist with development. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27ACPICA: Headers: Deploy #pragma pack (push) and (pop).Bob Moore
Use push and pop to both guarantee that the correct alignment is used, and to restore the alignment to whatever it was before the header was included. It is reported that the #pragma pack(push/pop) directives are not supported by the specific GCCs, but this patch still doesn't affect kernel build as there are already #pragma pack([1]) directives used in the old ACPICA headers, which means there shouldn't be GCCs that are currently used to compile the ACPI kernels do not support #pragma pack() directives. References: https://bugs.acpica.org/show_bug.cgi?id=1058 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27Merge back earlier 'acpi-processor' material.Rafael J. Wysocki
2014-02-27ACPI / processor: Rework processor throttling with work_on_cpu()Lan Tianyu
acpi_processor_set_throttling() uses set_cpus_allowed_ptr() to make sure that the (struct acpi_processor)->acpi_processor_set_throttling() callback will run on the right CPU. However, the function may be called from a worker thread already bound to a different CPU in which case that won't work. Make acpi_processor_set_throttling() use work_on_cpu() as appropriate instead of abusing set_cpus_allowed_ptr(). Reported-and-tested-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Cc: All applicable <stable@vger.kernel.org> [rjw: Changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-22ACPI: Drop acpi_evaluate_hotplug_ost() and ACPI_HOTPLUG_OSTRafael J. Wysocki
Replace acpi_evaluate_hotplug_ost() with acpi_evaluate_ost() everywhere and drop the ACPI_HOTPLUG_OST symbol so that hotplug _OST is supported unconditionally. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Toshi Kani <toshi.kani@hp.com>
2014-02-22ACPI / dock: Update copyright noticeRafael J. Wysocki
Update the copyright notice of the ACPI dock driver to reflect the fact that substantial changes have been made to it recently. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-22ACPI / dock: Drop remove_dock_dependent_devices()Rafael J. Wysocki
Since remove_dock_dependent_devices() is only called from acpi_dock_add() and it only is called if the add_dock_dependent_device() adding the dock station to its own list of dependent devices has failed, it is not really necessary, because the dock station's list of dependent devices is guaranteed to be empty at that point. Drop it, then. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-22ACPI / dock: Drop struct acpi_dock_ops and all code related to itRafael J. Wysocki
Since struct acpi_dock_ops and the code handling it don't have any users any more after the previous changes, drop that structure and the code related to it altogether. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-22ACPI / ATA: Add hotplug contexts to ACPI companions of SATA devicesRafael J. Wysocki
Modify the SATA subsystem to add hotplug contexts to ACPI companions of SATA devices and ports instead of registering special ACPI dock operations using register_hotplug_dock_device(). That change will allow the entire code handling those special ACPI dock operations to be dropped in the next commit. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Tejun Heo <tj@kernel.org>
2014-02-21Merge branches 'acpi-pm' and 'acpi-video'Rafael J. Wysocki
* acpi-pm: ACPI / thermal: fix thermal driver compile error when CONFIG_PM_SLEEP is undefined ACPI / SBS: fix SBS driver compile error when CONFIG_PM_SLEEP is undefined ACPI / fan: fix fan driver compile error when CONFIG_PM_SLEEP is undefined ACPI / button: fix button driver compile error when CONFIG_PM_SLEEP is undefined ACPI / battery: fix battery driver compile error when CONFIG_PM_SLEEP is undefined ACPI / AC: fix AC driver compile error when CONFIG_PM_SLEEP is undefined * acpi-video: Revert "ACPI: Blacklist Win8 OSI for some HP laptop 2013 models" ACPI / video: Add systems that should favour native backlight interface ACPI / video: Filter the _BCL table for duplicate brightness values
2014-02-21Merge branches 'acpi-cleanup', 'acpi-dock', 'acpi-pci' and 'acpi-dsm'Rafael J. Wysocki
* acpi-cleanup: ACPI / SBS: Fix incorrect sscanf() string * acpi-dock: ACPI / dock: Make 'docked' sysfs attribute work as documented * acpi-pci: ACPI / PCI: Fix memory leak in acpi_pci_irq_enable() * acpi-dsm: ACPI / nouveau: fix probing regression related to _DSM
2014-02-21ACPI / dock: Add .uevent() callback to struct acpi_hotplug_contextRafael J. Wysocki
In order to avoid the need to register special ACPI dock operations for SATA devices add a .uevent() callback pointer to struct acpi_hotplug_context and make dock_hotplug_event() use that callback if available. Also rename the existing .event() callback in struct acpi_hotplug_context to .notify() to avoid possible confusion in the future. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-21ACPI / dock: Use callback pointers from devices' ACPI hotplug contextsRafael J. Wysocki
Instead of requiring a set of special dock operations to be registered via register_hotplug_dock_device() for each ACPI dock device, it is much more straightforward to use callback pointers from the devices' hotplug contexts if available. For this reason, modify dock_hotplug_event() to use callback pointers from the hotplug contexts of ACPI devices and fall back to using the special dock operarions only if those callbacks are missing. Also make the ACPI-based PCI hotplug (ACPIPHP) subsystem set the .fixup callback pointer in the hotplug contexts of devices handled by it to a new function, acpiphp_post_dock_fixup(), so that the dock station driver can use the callbacks from those contexts instead of special dock operations registered via register_hotplug_dock_device(). Along with the above changes drop the ACPIPHP's dock operations that are not necessary any more. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-21ACPI / dock: Use ACPI device object pointers instead of ACPI handlesRafael J. Wysocki
Rework the ACPI dock station driver to store ACPI device object pointers instead of ACPI handles in its internal data structures. The purpose is moslty to make subsequent simplifications possible, but also this allows the overall code size to be reduced slightly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-21Merge branch 'acpi-pci-hotplug' into acpi-ostRafael J. Wysocki
2014-02-21ACPI: use device name LNXSYBUS.xx for ACPI \_SB and \_TZ objectsJiang Liu
Use device name "LNXSYBUS:xx" instead of "device.xx" for ACPI objects \_SB and \_TZ. BTW, the original check of "handle == ACPI_ROOT_OBJECT" in statment "else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT)" is always false because of the code at the begin of that block. if (handle == ACPI_ROOT_OBJECT) { acpi_add_id(pnp, ACPI_SYSTEM_HID); break; } Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-21ACPI / processor: use acpi_evaluate_ost() to replace open-coded versionJiang Liu
Use public function acpi_evaluate_ost() to replace open-coded version of evaluating ACPI _OST method. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-21ACPI / PAD: use acpi_evaluate_ost() to replace open-coded versionJiang Liu
Use public function acpi_evaluate_ost() to replace open-coded version of evaluating ACPI _OST method. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-21ACPI: rename acpi_evaluate_hotplug_ost() to acpi_evaluate_ost()Jiang Liu
Rename acpi_evaluate_hotplug_ost() to acpi_evaluate_ost() for later resue. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-20ACPI / fan: do nothing in suspend and poweroff callbackAaron Lu
We put fans to full speed in acpi_fan_suspend(), but that is only needed in the hibernation case when we are generating hibernation image, so this patch removes that when we are about to suspend or poweroff. References: http://www.spinics.net/lists/linux-acpi/msg48636.html Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>