- 26 1月, 2013 1 次提交
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由 Rafael J. Wysocki 提交于
The second argument of ACPI driver .remove() operation is only used by the ACPI processor driver and the value passed to that driver through it is always available from the given struct acpi_device object's removal_type field. For this reason, the second ACPI driver .remove() argument is in fact useless, so drop it. Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: NJiang Liu <jiang.liu@huawei.com> Acked-by: NToshi Kani <toshi.kani@hp.com> Acked-by: NYinghai Lu <yinghai@kernel.org>
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- 22 9月, 2012 1 次提交
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由 Mika Westerberg 提交于
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 10 8月, 2012 1 次提交
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由 Rafael J. Wysocki 提交于
According to compiler warnings, several suspend/resume functions in ACPI drivers are not used for CONFIG_PM_SLEEP unset, so add #ifdefs to prevent them from being built in that case. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 01 7月, 2012 1 次提交
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由 Rafael J. Wysocki 提交于
Make the ACPI button driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 23 3月, 2011 1 次提交
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由 Zhang Rui 提交于
Remove unused ACPI button procfs interface. Only /proc/acpi/button/lid/LID/state remains. Signed-off-by: NZhang Rui <rui.zhang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 25 2月, 2011 2 次提交
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由 Rafael J. Wysocki 提交于
If a button device had already been enabled to wake up the system from sleep states before the button driver saw it, the driver shouldn't disable the device's wakeup capability when being detached from the device. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Rafael J. Wysocki 提交于
The wakeup.run_wake_count ACPI device field is only used by the PCI runtime PM code to "protect" devices from being prepared for generating wakeup signals more than once in a row. However, it really doesn't provide any protection, because (1) all of the functions it is supposed to protect use their own reference counters effectively ensuring that the device will be set up for generating wakeup signals just once and (2) the PCI runtime PM code uses wakeup.run_wake_count in a racy way, since nothing prevents acpi_dev_run_wake() from being called concurrently from two different threads for the same device. Remove the wakeup.run_wake_count ACPI device field which is unnecessary, confusing and used in a wrong way. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 07 1月, 2011 2 次提交
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由 Rafael J. Wysocki 提交于
Since ACPI buttons and lids can be configured to wake up the system from sleep states, report wakeup events from these devices. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Rafael J. Wysocki 提交于
There are ACPI devices (buttons and the laptop lid) that can wake up the system from sleep states and have no "physical" companion devices. The ACPI subsystem uses two flags, wakeup.state.enabled and wakeup.flags.always_enabled, for handling those devices, but they are not accessible through the standard device wakeup infrastructure. User space can only control them via the /proc/acpi/wakeup interface that is not really convenient (e.g. the way in which devices are enabled to wake up the system is not portable between different systems, because it requires one to know the devices' "names" used in the system's ACPI tables). To address this problem, use standard device wakeup flags instead of the special ACPI flags for handling those devices. In particular, use device_set_wakeup_capable() to mark the ACPI wakeup devices during initialization and use device_set_wakeup_enable() to allow or disallow them to wake up the system from sleep states. Rework the /proc/acpi/wakeup interface to take these changes into account. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 02 10月, 2010 1 次提交
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由 Thomas Renninger 提交于
Signed-off-by: NThomas Renninger <trenn@suse.de> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 07 7月, 2010 1 次提交
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由 Rafael J. Wysocki 提交于
After the previous patch that introduced acpi_gpe_wakeup() and modified the ACPI suspend and wakeup code to use it, the third argument of acpi_{enable|disable}_gpe() and the GPE wakeup reference counter are not necessary any more. Remove them and modify all of the users of acpi_{enable|disable}_gpe() accordingly. Also drop GPE type constants that aren't used any more. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com> Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 18 6月, 2010 1 次提交
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由 Rafael J. Wysocki 提交于
After commit 9630bdd9 (ACPI: Use GPE reference counting to support shared GPEs) the wakeup enable mask bits of GPEs are set as soon as the GPEs are enabled to wake up the system. Unfortunately, this leads to a regression reported by Michal Hocko, where a system is woken up from ACPI S5 by a device that is not supposed to do that, because the wakeup enable mask bit of this device's GPE is always set when acpi_enter_sleep_state() calls acpi_hw_enable_all_wakeup_gpes(), although it should only be set if the device is supposed to wake up the system from the target state. To work around this issue, rework the ACPI power management code so that GPEs are not enabled to wake up the system upfront, but only during a system state transition when the target state of the system is known. [Of course, this means that the reference counting of "wakeup" GPEs doesn't really make sense and it is sufficient to set/unset the wakeup mask bits for them during system sleep transitions. This will allow us to simplify the GPE handling code quite a bit, but that change is too intrusive for 2.6.35.] Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15951Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: NMichal Hocko <mhocko@suse.cz> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 23 2月, 2010 2 次提交
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由 Rafael J. Wysocki 提交于
Use the run_wake flag to mark all devices for which run-time wake-up events may be generated by the platform. Introduce a new wake-up flag, always_enabled, for marking devices that should be permanently enabled to generate run-time events. Also, introduce a reference counter for run-wake devices and a function that will initialize all of the run-time wake-up fields for given device. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NLen Brown <len.brown@intel.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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由 Rafael J. Wysocki 提交于
ACPI GPEs may map to multiple devices. The current GPE interface only provides a mechanism for enabling and disabling GPEs, making it difficult to change the state of GPEs at runtime without extensive cooperation between devices. Add an API to allow devices to indicate whether or not they want their device's GPE to be enabled for both runtime and wakeup events. Remove the old GPE type handling entirely, which gets rid of various quirks, like the implicit disabling with GPE type setting. This requires a small amount of rework in order to ensure that non-wake GPEs are enabled by default to preserve existing behaviour. Based on patches from Matthew Garrett <mjg@redhat.com>. Signed-off-by: NMatthew Garrett <mjg@redhat.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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- 16 12月, 2009 1 次提交
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由 Zhao Yakui 提交于
On some laptops it will return NOTIFY_OK(non-zero) when calling the ACPI LID notifier. Then it is used as the result of ACPI LID resume function, which will complain the following warning message in course of suspend/resume: >PM: Device PNP0C0D:00 failed to resume: error 1 This patch is to eliminate the above warning message. http://bugzilla.kernel.org/show_bug.cgi?id=14782Signed-off-by: NZhao Yakui <yakui.zhao@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 13 10月, 2009 1 次提交
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由 Jesse Barnes 提交于
If a call comes in to check the lid state but there's no lid device present, we should return -ENODEV. Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 11 9月, 2009 1 次提交
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由 Jesse Barnes 提交于
Some drivers need to know when a lid event occurs and get the current status. This can be useful for when a platform firmware clobbers some hardware state at lid time, and a driver needs to restore things when the lid is opened again. Acked-by: NMatthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: NEric Anholt <eric@anholt.net>
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- 29 8月, 2009 1 次提交
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由 Len Brown 提交于
Linux/ACPI core files using internal.h all PREFIX "ACPI: ", however, not all ACPI drivers use/want it -- and they should not have to #undef PREFIX to define their own. Add GPL commment to internal.h while we are there. This does not change any actual console output, asside from a whitespace fix. Signed-off-by: NLen Brown <len.brown@intel.com>
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- 11 4月, 2009 6 次提交
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由 Bjorn Helgaas 提交于
This patch removes the driver distinction between control method (CM) and fixed hardware (FF) buttons. We previously needed that so we could install either a fixed event handler or a notify handler, but the Linux/ACPI code now handles that for us, so we don't need to worry about it. Note that this removes the FF/CM annotation from the "info" files in /proc. For example, /proc/acpi/button/PWRF/info: -type: Power Button (FF) +type: Power Button I don't think there's anything meaningful user-space can do by knowing whether a button is a control method or a fixed hardware button, so nobody should be looking at the FF/CM. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bjorn Helgaas 提交于
We no longer need a pointer from struct acpi_button back to the struct acpi_device. Everywhere we used that pointer, we either already have, or can easily get, the acpi_device pointer without using the copy from acpi_button. So this patch removes the structure element. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bjorn Helgaas 提交于
This patch adds temporaries to cache the acpi_device_hid(), acpi_device_name(), and acpi_device_class() pointers so we don't have to clutter the code with so many uses of those interfaces. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bjorn Helgaas 提交于
It's typical and slightly more compact to look up the driver_data structure by initializing the automatic variable at its definition. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bjorn Helgaas 提交于
Better to oops and learn about a bug than to silently cover it up. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bjorn Helgaas 提交于
This patch changes a bit of whitespace to follow Linux conventions. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 05 4月, 2009 1 次提交
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由 Bjorn Helgaas 提交于
This patch adds a .notify() method. The presence of .notify() causes Linux/ACPI to manage event handlers and notify handlers on our behalf, so we don't have to install and remove them ourselves. Note that events from fixed hardware buttons now show up as a special notify event, so to preserve user-space backward compatibility, we convert that back to ACPI_BUTTON_NOTIFY_STATUS. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Reviewed-by: NAlex Chiang <achiang@hp.com> CC: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 31 3月, 2009 1 次提交
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由 Alexey Dobriyan 提交于
Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy as correctly noted at bug #12454. Someone can lookup entry with NULL ->owner, thus not pinning enything, and release it later resulting in module refcount underflow. We can keep ->owner and supply it at registration time like ->proc_fops and ->data. But this leaves ->owner as easy-manipulative field (just one C assignment) and somebody will forget to unpin previous/pin current module when switching ->owner. ->proc_fops is declared as "const" which should give some thoughts. ->read_proc/->write_proc were just fixed to not require ->owner for protection. rmmod'ed directories will be empty and return "." and ".." -- no harm. And directories with tricky enough readdir and lookup shouldn't be modular. We definitely don't want such modular code. Removing ->owner will also make PDE smaller. So, let's nuke it. Kudos to Jeff Layton for reminding about this, let's say, oversight. http://bugzilla.kernel.org/show_bug.cgi?id=12454Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
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- 12 11月, 2008 1 次提交
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由 Alexey Starikovskiy 提交于
Disabling gpe might interfere with gpe detection/handling, thus producing "interrupt not handled" errors. Ironically, disabling of GPE from interrupt context is already under spinlock, so only userspace needs to start using it. Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 08 11月, 2008 1 次提交
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由 Bjorn Helgaas 提交于
Move all the component definitions for drivers to a single shared place, include/acpi/acpi_drivers.h. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 25 10月, 2008 1 次提交
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由 Guillem Jover 提交于
Currently not always an EV_SYN event is reported to userland after the EV_SW SW_LID event has been sent. This is easy to verify by using “input-events” from input-utils and just closing and opening the lid. Signed-off-by: NGuillem Jover <guillem.jover@nokia.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 11 10月, 2008 2 次提交
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由 Matthew Wilcox 提交于
As of version 2.0, ACPI can return 64-bit integers. The current acpi_evaluate_integer only supports 64-bit integers on 64-bit platforms. Change the argument to take a pointer to an acpi_integer so we support 64-bit integers on all platforms. lenb: replaced use of "acpi_integer" with "unsigned long long" lenb: fixed bug in acpi_thermal_trips_update() Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Pavel Machek 提交于
Catch attempts to use of acpi_driver_data on pointers of wrong type. akpm: rewritten to use proper C typechecking and remove the "function"-used-as-lvalue thing. Signed-off-by: NPavel Machek <pavel@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 29 4月, 2008 1 次提交
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由 Denis V. Lunev 提交于
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: NDenis V. Lunev <den@openvz.org> Cc: Len Brown <lenb@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 3月, 2008 1 次提交
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由 Andrey Borzenkov 提交于
Signed-off-by: NAndrey Borzenkov <arvidjaar@mail.ru> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 26 10月, 2007 1 次提交
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由 Alexey Starikovskiy 提交于
Input layer should know about initial state of lid switch, even before first notify. Reference: https://bugzilla.novell.com/show_bug.cgi?id=326814Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 20 10月, 2007 1 次提交
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由 Jiri Slaby 提交于
get rid of input BIT* duplicate defines use newly global defined macros for input layer. Also remove includes of input.h from non-input sources only for BIT macro definiton. Define the macro temporarily in local manner, all those local definitons will be removed further in this patchset (to not break bisecting). BIT macro will be globally defined (1<<x) Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Cc: <dtor@mail.ru> Acked-by: NJiri Kosina <jkosina@suse.cz> Cc: <lenb@kernel.org> Acked-by: NMarcel Holtmann <marcel@holtmann.org> Cc: <perex@suse.cz> Acked-by: NMauro Carvalho Chehab <mchehab@infradead.org> Cc: <vernux@us.ibm.com> Cc: <malattia@linux.it> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 24 8月, 2007 1 次提交
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由 Len Brown 提交于
Schedule /proc/acpi/event for removal in 6 months. Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event() to make sure there is no confusion that it is for /proc/acpi/event only. Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event. There is no functional change if CONFIG_ACPI_PROC_EVENT=y Signed-off-by: NLen Brown <len.brown@intel.com>
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- 24 7月, 2007 1 次提交
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由 Thomas Renninger 提交于
modpost is going to use these to create e.g. acpi:ACPI0001 in modules.alias. Signed-off-by: NThomas Renninger <trenn@suse.de> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 13 2月, 2007 2 次提交
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由 Len Brown 提交于
Cosmetic only. Except in a single case, #define ACPI_*_DRIVER_NAME were invoked 0 or 1 times. Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
It was erroneously used as a description rather than a name. ie. turn this: lenb@se7525gp2:/sys> ls bus/acpi/drivers ACPI AC Adapter Driver ACPI Embedded Controller Driver ACPI Power Resource Driver ACPI Battery Driver ACPI Fan Driver ACPI Processor Driver ACPI Button Driver ACPI PCI Interrupt Link Driver ACPI Thermal Zone Driver ACPI container driver ACPI PCI Root Bridge Driver hpet into this: lenb@se7525gp2:~> ls /sys/bus/acpi/drivers ac battery button container ec fan hpet pci_link pci_root power processor thermal Signed-off-by: NLen Brown <len.brown@intel.com>
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