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path: root/drivers/acpi
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2015-08-26device property: attach 'else if' to the proper 'if'Andy Shevchenko
Obviously in the current place the 'else' keyword is redundant, though it seems quite correct when we check if nval is in allowed range. Reattach the condition branch there. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-25nfit, nd_blk: BLK status register is only 32 bitsRoss Zwisler
Only read 32 bits for the BLK status register in read_blk_stat(). The format and size of this register is defined in the "NVDIMM Driver Writer's guide": http://pmem.io/documents/NVDIMM_Driver_Writers_Guide.pdf Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reported-by: Nicholas Moulin <nicholas.w.moulin@linux.intel.com> Tested-by: Nicholas Moulin <nicholas.w.moulin@linux.intel.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-08-25ACPICA: Debugger: Cleanup debugging outputs to dump name path without ↵Lv Zheng
trailing underscores ACPICA commit 51a49c2fb4a73f302a6df2b8ddc1350dd261684d It is better to use unified ASL path name to interact with the developers. There are following acpi_ns_build_normalized_pathname() users invoking it for debugging purposes (acpiexec test results are attached): 1. acpi_ut_display_init_pathname (acpi_ns_handle_to_pathname): --------------------------------------------- Initializing Region \_SB.H_EC.ECF2 --------------------------------------------- 2. acpi_ns_print_node_pathname (acpi_ns_handle_to_pathname): --------------------------------------------- - ex \_SB.H_EC._STA Evaluating \_SB.H_EC._STA --------------------------------------------- 3. acpi_ds_print_node_pathname (acpi_ns_handle_to_pathname): --------------------------------------------- - level 211b console - execute \M1 ... **** Exception AE_AML_UNINITIALIZED_ARG during execution of method [\M1] (Node 009CB6B8) --------------------------------------------- 4. acpi_ex_dump_reference_obj (acpi_ns_handle_to_pathname): --------------------------------------------- - dump \_TZ.FAN4._PR0 ... [00] 00835E98 [Object Reference] Type [Named Object] 05 00828878 \_TZ.FN04 --------------------------------------------- 5. acpi_db_bus_walk (acpi_ns_handle_to_pathname): --------------------------------------------- - businfo \_SB.PCI0 Type 6 ... --------------------------------------------- 6. acpi_db_walk_and_match_name (acpi_ns_handle_to_pathname): --------------------------------------------- - find _PR0 \_TZ.FAN4._PR0 Package 002D8DF8 01 Elements 01 --------------------------------------------- 7. acpi_db_walk_for_specific_objects (acpi_ns_handle_to_pathname): --------------------------------------------- - methods ... \_SB.PCI0._PRT Method 0026D918 01 Args 0 Len 0005 Aml 0026B199 ... --------------------------------------------- 8. acpi_db_decode_and_dispaly_object (acpi_get_name): --------------------------------------------- - gpes Block 0 - Info 003AC7B0 device_node 003A0E08 [\_GPE] - FADT-defined GPE block ... --------------------------------------------- 9. acpi_db_display_gpes (acpi_get_name): --------------------------------------------- - dump \_GPE Object (003A0E08) Pathname: \_GPE --------------------------------------------- 10.ae_miscellaneous_tests (acpi_get_name): No output available This patch cleans up all of the above usages. ACPICA BZ 1178, Lv Zheng. Linux kernel's ACPICA debugging messages may also be changed. Link: https://github.com/acpica/acpica/commit/51a49c2f 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>
2015-08-25ACPICA: Disassembler: Cleanup acpi_gbl_db_opt_verbose acpiexec usageLv Zheng
ACPICA commit 42d7ad7bfb1cfb95183c1386c77509f2036f521d When acpi_gbl_db_opt_verbose is used in acpi_dm_descending_op() (invoked by acpi_dm_disassemble()), it is actually exported by the disassembler but used by the debugger to distinguish the output of the disassembler for different debugger commands. It is by default TRUE but is set to FALSE for control method disassembly command - "disassemble". So it's initialization should be a part of the ACPI_DISASSEMBLER conditioned code. This patch uses ACPI_INIT_GLOBAL to achieve a clean manner so that when ACPI_DISASSEMBLER is not defined, ACPI_DEBUGGER conditioned code needn't link to this option. Since it is a disassembler exported variable, it is renamed to acpi_gbl_dm_opt_Verbose in this patch. As VERBOSE_PRINT() macro has only one user, this patch also removes the definition of this macro. Lv Zheng. This patch doesn't affect Linux kernel. Link: https://github.com/acpica/acpica/commit/42d7ad7b 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>
2015-08-25ACPICA: Disassembler: Cleanup acpi_gbl_db_opt_disasmLv Zheng
ACPICA commit 969989cf7f85e2a2a0cd048cd25fc706246a48a2 This patch cleans up the following global variable - acpi_gbl_db_opt_disasm: The setting is used to control the full disassembly feature for iasl. ACPI debugger (acpiexec) shall have nothing to do with it. Actually, acpiexec never links to ad_aml_disassemble(). This patch thus renames this global option to acpi_gbl_dm_opt_disasm and removes all acpiexec and debugger references on it. Lv Zheng. This patch doesn't affect Linux kernel. Link: https://github.com/acpica/acpica/commit/969989cf 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>
2015-08-25ACPICA: Debugger: Split debugger initialization/termination APIsLv Zheng
ACPICA commit 7a3f22baab000b186779dac64ad71d9776b8f432 It is likely that the debugger is enabled only when a userspace program explicitly tells a kernel to do so, so it shouldn't be initialized as early as current implementation. The only tool requiring ACPI_DEBUGGER is acpiexec, so acpiexec need to call the new APIs by itself. And BSD developers may also get notified to invoke the APIs for DDB enabling. Lv Zheng. This patch doesn't affect Linux kernel as debugger is currently not enabled in the Linux kernel. Link: https://github.com/acpica/acpica/commit/7a3f22ba 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>
2015-08-25ACPICA: Make the max-number-of-loops runtime configurableBob Moore
ACPICA commit a9d9c2d0c2d077bb3175ec9c252cf0e5da3efd45 Was previously compile-time only. Add support option for acpiexec. Link: https://github.com/acpica/acpica/commit/a9d9c2d0 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>
2015-08-25ACPICA: Debugger: Add option to display namespace summary/countsBob Moore
ACPICA commit bba222c15c2ce79076eb3a5e9d4d5f7120db8a00 If "Objects" command is invoked with no arguments, the counts for each object type are displayed. Linux kernel is not affected by this commit as currently debugger is not enabled in the Linux kernel. Link: https://github.com/acpica/acpica/commit/bba222c1 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>
2015-08-25ACPICA: Add additional debug info/statementsBob Moore
ACPICA commit 74094ca9f51e2652a9b5f01722d8640a653cc75a For _REG methods and module-level code blocks. For acpiexec, add deletion of module-level blocks in case of an early abort. Link: https://github.com/acpica/acpica/commit/74094ca9 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>
2015-08-25ACPICA: Table handling: Cleanup and update debug output for toolsBob Moore
ACPICA commit 93862bd7a227543bc617d822ef5c4f8a5d68b519 Add output of table OEM ID along with signature to support lots of SSDTs. Cleanup use of table pointers. Link: https://github.com/acpica/acpica/commit/93862bd7 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>
2015-08-25ACPICA: acpiexec/acpinames: Support very large number of ACPI tablesBob Moore
ACPICA commit ca3bd4c5cdc39a9009280032adbbc20f34e94c47 Fix a couple of issues with >40 ACPI tables. Return exit error for acpinames to enable use with BIOS builds. The new exported function is used by acpinames. For Linux kernel, this change is a no-op. Link: https://github.com/acpica/acpica/commit/ca3bd4c5 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>
2015-08-25ACPICA: acpinames: Add new options and wildcard supportBob Moore
ACPICA commit 0ecf5b5a41c3d2e09af48f0fdbc9ae784f631788 - Add wilcard support for input filenames. - Add -l option to load tables and exit, no display. This is useful for validation of the namespace during BIOS generation. - Add -x option for specifying debug level. Linux kernel is not affected by this commit. Link: https://github.com/acpica/acpica/commit/0ecf5b5a 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>
2015-08-25ACPICA: Tables: Cleanup to reduce FACS globalsLv Zheng
ACPICA commit 3f42ba76e2a0453976d3108296d5f656fdf2bd6e In this patch, FACS table mapping is also tuned a bit so that only the selected FACS table will be mapped by the OSPM (mapped on demand) and the FACS related global variables can be reduced. Lv Zheng. Link: https://github.com/acpica/acpica/commit/3f42ba76 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>
2015-08-25ACPICA: Tables: Fix global table list issues by removing fixed table indexesLv Zheng
ACPICA commit c0b38b4c3982c2336ee92a2a14716107248bd941 The fixed table indexes leave holes in the global table list: 1. One hole can be seen when there is only 1 FACS provided by the BIOS. 2. Tow holes can be seen when it is a reduced hardware platform. The holes do not break OSPMs but have broken ACPI debugger "tables" command. Also the "fixed table indexes" mechanism may make the descriptors of the standard tables installed earlier than DSDT to be overwritten by the descriptors of the fixed tables. For example, FACP disappears from the global table list after DSDT is installed. This patch fixes all above issues by removing the "fixed table indexes" mechanism which is too complicated to be maintained in a regression safe manner. After removal, the table loader will determine the indexes of the fixed tables. Lv Zheng. Link: https://github.com/acpica/acpica/commit/c0b38b4c 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>
2015-08-25ACPICA: Update info messages during ACPICA initBob Moore
ACPICA commit 4ccf8a1cc499ec8f00345f662a5887483980e1dd Small cleanup of messages. Link: https://github.com/acpica/acpica/commit/4ccf8a1c 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>
2015-08-25ACPICA: Disassembler: Update for new listing modeBob Moore
ACPICA commit 2ed09bb7619d25f5a5c065c33a8a775a6db3a856 ACPICA commit 2fefacf73825b0ec96bbfc4f70a256735b715d6c This mode emits AML code along with the ASL code. A new global was needed to ensure the listing mode is completely separate from the debugger verbose mode. Emits the correct AML offset for the AML code. The -l option now works for both the compiler and disassembler. Linux kernel is not affected by this commit. Link: https://github.com/acpica/acpica/commit/2fefacf7 Link: https://github.com/acpica/acpica/commit/2ed09bb7 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>
2015-08-25ACPICA: Update parameter validation for data_table_region and load_tableBob Moore
ACPICA commit 51ab555e60b4a3de3cc4a846e86d0de255be441a Add additional validation for the table signature and the OEM strings. Eliminates buffer read overrun in data_table_region. ACPICA BZ 1184. Link: https://bugs.acpica.org/show_bug.cgi?id=1184 Link: https://github.com/acpica/acpica/commit/51ab555e 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>
2015-08-25ACPICA: Disassembler: Remove duplicate code in _PLD processing.Bob Moore
ACPICA commit 6d9c827b540837b6e54059e17756a06985e4a196 ACPICA BZ 1176. Link: https://bugs.acpica.org/show_bug.cgi?id=1176 Link: https://github.com/acpica/acpica/commit/6d9c827b 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>
2015-08-25ACPICA: Correctly cleanup after a ACPI table load failureBob Moore
ACPICA commit ed7769e832de6c7ba90615480d916c85fd100422 If a table load fails, delete all namespace objects created by the table, otherwise these objects will be uninitialized, causing problems later. This appears to be a very rare problem. Also handle the unitialized node problem to prevent possible faults. ACPICA BZ 1185. Link: https://github.com/acpica/acpica/commit/ed7769e8 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>
2015-08-25ACPI: Decouple ACPI idle and ACPI processor driversAshwin Chaugule
This patch introduces a new Kconfig symbol, ACPI_PROCESSOR_IDLE, which is auto selected by architectures which support the ACPI based C states for CPU Idle management. The processor_idle driver in its present form contains declarations specific to X86 and IA64. Since there are no reasonable defaults for other architectures e.g. ARM64, the driver is selected only for X86 or IA64. This helps in decoupling the ACPI processor_driver from the ACPI processor_idle driver which is useful for the upcoming alternative patchwork for controlling CPU Performance (CPPC) and CPU Idle (LPI). Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-25ACPI: Split out ACPI PSS from ACPI Processor driverAshwin Chaugule
The ACPI processor driver is currently tied too closely to the ACPI P-states (PSS) and other related constructs for controlling CPU performance. The newer ACPI specification (v5.1 onwards) introduces alternative methods to PSS. These new mechanisms are described within each ACPI Processor object and so they need to be scanned whenever a new Processor object is detected. This patch introduces a new Kconfig symbol to allow for finer configurability among the two options for controlling performance states. There is no change in functionality and the option is auto-selected by the architectures which support it. A future commit will introduce support for CPPC: A newer method of controlling CPU performance. The OS is not expected to support CPPC and PSS at the same time, so the Kconfig option lets us make the two mutually exclusive at compile time. Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org> [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-25ACPI / osl: replace custom implementation of readq / writeqAndy Shevchenko
The readq() and writeq() helpers are available in the asm-generic/io-64-nonatomic-hi-lo.h and asm-generic/io-64-nonatomic-lo-hi.h headers. Replace custom implementation by the generic helpers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-25ACPI / EC: Fix an issue caused by the serialized _Qxx evaluationsLv Zheng
It is proven that Windows evaluates _Qxx handlers in a parallel way. This patch follows this fact, splits _Qxx evaluations from the NOTIFY queue to form a separate queue, so that _Qxx evaluations can be queued up on different CPUs rather than being queued up on a CPU0 bound queue. Event handling related callbacks are also renamed and sorted in this patch. Link: https://bugzilla.kernel.org/show_bug.cgi?id=94411 Reported-and-tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-14serial: 8250: bind to ALi Fast Infrared Controller (ALI5123)Maciej S. Szmigiero
This way this device can be used with irtty-sir - at least on Toshiba Satellite A20-S103 it is not configured by default and needs PNP activation before it starts to respond on I/O ports. This device has actually its own driver (ali-ircc), but this driver seems to be non-functional for a very long time (see http://permalink.gmane.org/gmane.linux.irda.general/484 http://permalink.gmane.org/gmane.network.protocols.obex.openobex.user/943 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=535070 ). Signed-off-by: Maciej Szmigiero <mail@maciej.szmigiero.name> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14ACPI / video: Fix circular lock dependency issue in the video-detect codeHans de Goede
Before this commit, the following would happen: a) acpi_video_get_backlight_type() gets called b) acpi_video_get_backlight_type() calls acpi_video_init_backlight_type() c) acpi_video_init_backlight_type() locks its function static init_mutex d) acpi_video_init_backlight_type() calls backlight_register_notifier() e) backlight_register_notifier() takes its notifier-chain lock And when the backlight notifier chain gets called we've: 1) blocking_notifier_call_chain() gets called 2) blocking_notifier_call_chain() takes the notifier-chain lock 3) blocking_notifier_call_chain() calls acpi_video_backlight_notify() 4) acpi_video_backlight_notify() calls acpi_video_get_backlight_type() 5) acpi_video_get_backlight_type() calls acpi_video_init_backlight_type() 6) acpi_video_init_backlight_type() locks its function static init_mutex So in the first call sequence we have: a) init_mutex gets locked b) notifier-chain gets locked and in the second call sequence we have: 1) notifier-chain gets locked 2) init_mutex gets locked And we've a circular locking dependency. This specific locking dependency is fixable without using the big hammer otherwise known as a workqueue, but further analysis shows a similar problem with the backlight notifier chain lock vs register_count_mutex from drivers/acpi/acpi_video.c, and fixing that becomes problematic. So this commit simply fixes this with the big hammer, performance wise this is a non issue as we expect the work to get scheduled exactly zero or one times during normal system use. Fixes: 93a291dfaf9c (ACPI / video: Move backlight notifier to video_detect.c) Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reported-and-tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-07ACPI: fix acpi_debugfs_init prototypeNicolas Iooss
acpi_debugfs_init function is declared with return type int in drivers/acpi/internal.h when CONFIG_DEBUG_FS is enabled, but its definition in drivers/acpi/debugfs.c has return type void. This is due to commit aecad432fd68 ("ACPI: Cleanup custom_method debug stuff"), which changed the return type from int to void without updating the declaration. Fix this inconsistency by updating acpi_debugfs_init prototype. While at it, include internal.h in debugfs.c so that the compiler can check that the declaration and definition remain compatible. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-07ACPI / sysfs: Add support to allow leading "\" missing in trace_method_name.Lv Zheng
Since _SB.PCI0 can be used as relative path from root and can be easily converted into internal trace_method_name format, we allow users to specify trace_method_name using relative paths from root. Note this is useful for grub2 for which users failed to pass "\" from the grub configuration file. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-07ACPI / sysfs: Update method tracing facility.Lv Zheng
This patch updates the method tracing facility as the acpi_debug_trace() API has been updated to allow it to trace AML interpreter execution, the meanings and the usages of the API parameters are changed due to the updates. The new API: 1. Uses ACPI_TRACE_ENABLED flag to indicate the enabling of the tracer; 2. Allows tracer still can be enabled when method name is not specified so that the AML interpreter execution can be traced without knowing the method name, which is useful for kernel boot tracing; 3. Supports arbitrary full path name, it doesn't need to be a name related to an entrance of acpi_evaluate_object(). Note that the sysfs parameters are also updated so that when reading the attribute files, ACPICA internal settings are returned. In order to make the sysfs parameters (acpi.trace_state) available during boot, this patch adds code to bypass ACPICA semaphore/mutex invocations when acpi mutex utilities haven't been initialized. This patch doesn't update documentation of method tracing facility, it will be updated by further patches. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-07ACPI / sysfs: Add ACPI_LV_REPAIR debug level.Lv Zheng
This patch updates debug_level file, adding ACPI_LV_REPAIR. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-07Merge branch 'acpica' into acpi-traceRafael J. Wysocki
2015-08-06ACPI / bus: Move duplicate code to a separate new functionRafael J. Wysocki
After merging commit 712e960f0ee9 (ACPI / PM: Attach ACPI power domain only once) with commit 1dcc3d3362b0 (ACPI / bus: Move ACPI bus type registration) there is some duplicate code in acpi_device_is_first_physical_node() and acpi_companion_match() that can be moved to a separate routine and called from both places. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
2015-08-03thermal: consistently use int for temperaturesSascha Hauer
The thermal code uses int, long and unsigned long for temperatures in different places. Using an unsigned type limits the thermal framework to positive temperatures without need. Also several drivers currently will report temperatures near UINT_MAX for temperatures below 0°C. This will probably immediately shut the machine down due to overtemperature if started below 0°C. 'long' is 64bit on several architectures. This is not needed since INT_MAX °mC is above the melting point of all known materials. Consistently use a plain 'int' for temperatures throughout the thermal code and the drivers. This only changes the places in the drivers where the temperature is passed around as pointer, when drivers internally use another type this is not changed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Peter Feuerer <peter@piie.net> Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Jean Delvare <jdelvare@suse.de> Cc: Peter Feuerer <peter@piie.net> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-acpi@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Guenter Roeck <linux@roeck-us.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Darren Hart <dvhart@infradead.org> Cc: lm-sensors@lm-sensors.org Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2015-07-31Merge back earlier ACPI PM material for v4.3.Rafael J. Wysocki
2015-07-30PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managedJiang Liu
Add pci_has_managed_irq(), pci_set_managed_irq(), and pci_reset_managed_irq() to simplify code. No functional change. [bhelgaas: changelog] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-30PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()Jiang Liu
To support IOAPIC hotplug, we need to allocate PCI IRQ resources on demand and free them when not used anymore. Implement pcibios_alloc_irq() and pcibios_free_irq() to dynamically allocate and free PCI IRQs. Remove mp_should_keep_irq(), which is no longer used. [bhelgaas: changelog] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-29Merge branch 'acpi-scan' into acpi-pmRafael J. Wysocki
Conflicts: drivers/acpi/scan.c The conflict is resolved by moving the just introduced acpi_device_is_first_physical_node() to bus.c and using the existing acpi_companion_match() from there. There will be an additional commit to combine the two.
2015-07-29Merge tag 'ib-mfd-base-acpi-dma-v4.3' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into acpi-pm Pull MFD-related material including ACPI device power management changes (in addition to MFD, driver core and DMA changes) for v4.3 from Lee Jones. * tag 'ib-mfd-base-acpi-dma-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: mfd: Add support for Intel Sunrisepoint LPSS devices dmaengine: add a driver for Intel integrated DMA 64-bit mfd: make mfd_remove_devices() iterate in reverse order driver core: implement device_for_each_child_reverse() klist: implement klist_prev() Driver core: wakeup the parent device before trying probe ACPI / PM: Attach ACPI power domain only once PM / QoS: Make it possible to expose device latency tolerance to userspace
2015-07-28Merge back earlier cpufreq material for v4.3.Rafael J. Wysocki
2015-07-28ACPI / PM: Use target_state to set the device power stateMika Westerberg
Commit 20dacb71ad28 ("ACPI / PM: Rework device power management to follow ACPI 6") changed the device power management to use D3hot if the device in question does not have _PR3 method even if D3cold was requested by the caller. However, if the device has _PR3 device->power.state is also set to D3hot instead of D3Cold after power resources have been turned off because device->power.state will be assigned from "state" instead of "target_state". Next time the device is transitioned to D0, acpi_power_transition() will find that the current power state of the device is D3hot instead of D3cold which causes it to power down all resources required for the current (wrong) state D3hot. Below is a simplified ASL example of a real touch panel device which triggers the problem: Scope (TPL1) { Name (_PR0, Package (1) { \_SB.PCI0.I2C1.PXTC }) Name (_PR3, Package (1) { \_SB.PCI0.I2C1.PXTC }) ... } In both D0 and D3hot the same power resource is required. However, when acpi_power_transition() turns off power resources required for D3hot (as the device is transitioned to D0) it powers down PXTC which then makes the device to lose its power. Fix this by assigning "target_state" to the device power state instead of "state" that is always D3hot even for devices with valid _PR3. Fixes: 20dacb71ad28 (ACPI / PM: Rework device power management to follow ACPI 6) Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-28ACPI / PM: Attach ACPI power domain only onceMika Westerberg
Some devices, like MFD subdevices, share a single ACPI companion device so that they are able to access their resources and children. However, currently all these subdevices are attached to the ACPI power domain and this might cause that the power methods for the companion device get called more than once. In order to solve this we attach the ACPI power domain only to the first physical device that is bound to the ACPI companion device. In case of MFD devices, this is the parent MFD device itself. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-07-27nfit: Don't check _STA on NVDIMM devicesLinda Knippers
The _STA only applies to the root device, not the individual NVDIMMS, so don't check here. NVDIMM device state flags are checked elsewhere. Signed-off-by: Linda Knippers <linda.knippers@hp.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-07-27libnvdimm: Add DSM support for Address Range Scrub commandsVishal Verma
Add support for the three ARS DSM commands: - Query ARS Capabilities - Queries the firmware to check if a given range supports scrub, and if so, which type (persistent vs. volatile) - Start ARS - Starts a scrub for a given range/type - Query ARS Status - Checks status of a previously started scrub, and provides the error logs if any. The commands are described by the example DSM spec at: http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf Also add these commands to the nfit_test test framework, and return canned data. Signed-off-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-07-23ACPICA: iASL/Disassembler: Add prototype verbose modeBob Moore
ACPICA commit add72dca18ab5d02f1bf9b08027570e58da520e8 This mode will emit AML byte code after each ASL statement. This is a prototype only and requires additional development. This patch only affects ACPICA disassembler which is not in the kernel source tree. Link: https://github.com/acpica/acpica/commit/add72dca 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>
2015-07-23ACPICA: Debugger: Move debugger specific APIs to debugger componentLv Zheng
ACPICA commit 2164923d60429eea7cd5a4a8629b607af7325afa Some disassembler APIs should rather be debugger APIs. This patch moves them to the debugger folder to be ready for debugger porting. Since there is no in-kernel ACPICA debugger in the kernel source tree, this patch doesn't affect the Linux kernel. Link: https://github.com/acpica/acpica/commit/2164923d 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>
2015-07-23ACPICA: Debugger: Reduce structure size for debuggerLv Zheng
ACPICA commit 310e0ae1c4730f4dadc80125125099ab76851499 arg_types in struct acpi_db_method_info is only referenced by ACPI_DEBUGGER. This patch only affects ACPICA debugger which is only used by a non-kernel tool - acpiexec, so Linux kernel is currently not affected by this patch. Link: https://github.com/acpica/acpica/commit/310e0ae1 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>
2015-07-23ACPICA: Cleanup use of NEGATIVE and POSITIVE definesBob Moore
ACPICA commit f88814201e01043a4f8caa69a69b799af11c44a3 These were defined in two places. Changed to ACPI_SIGN* names and define them once in acmacros.h This patch doesn't affect Linux kernel. Link: https://github.com/acpica/acpica/commit/f8881420 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>
2015-07-23ACPICA: Cleanup use of all non-ANSI local C library functionsBob Moore
ACPICA commit 7c490c28a18b435c543c6b410e7e7c2131fccc78 ACPICA implements all non-ANSI functions locally. However, there are sometimes two or more versions of the same function throughout the ACPICA code. This change fixes this. Adds a new file, utilities/utnonansi.c Link: https://github.com/acpica/acpica/commit/7c490c28 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>
2015-07-23ACPICA: iASL: Add new warnings for method local_x and arg_x variablesBob Moore
ACPICA commit eb9f8cb9fd65f1149dd335d05944c31cbca41af3 1) Warn if a Local is set but never used 2) Warn if a arg_x is never used (for non-predefined method names) 3) Warn if a arg_x that is used as a local is never used This patch only affects iASL which is not in the kernel source tree. Link: https://github.com/acpica/acpica/commit/eb9f8cb9 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>
2015-07-23ACPICA: Remove extraneous check for null walk_stateMarkus Elfring
ACPICA commit f9fd6e8bad0f16ce2b436c5cda36ced0c2d85302 Reported by Markus Elfring. Link: https://github.com/acpica/acpica/commit/f9fd6e8b Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> 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>
2015-07-23ACPICA: Parser: Remove redundant opcode execution debugging outputLv Zheng
ACPICA commit c832b0a9263c560b3ae3ae31d7298ef33988f8d5 This patch removes one redundant debugging output of opcode execution which has already been covered by acpi_ex_start_trace_opcode(). Lv Zheng. Link: https://github.com/acpica/acpica/commit/c832b0a9 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>
generated by cgit (git 2.34.1) at 2025-10-01 04:20:48 +0000