linux.git/drivers/acpi/bus.c, branch v4.17

ACPICA: Rename a global for clarity, no functional change

2018-03-18T17:52:00+00:00

Was acpi_gbl_parse_table_as_term_list, changed to:
acpi_gbl_execute_tables_as_methods.

Signed-off-by: Bob Moore 
Signed-off-by: Erik Schmauss 
Signed-off-by: Rafael J. Wysocki

device property: Constify device_get_match_data()

2018-02-12T09:41:11+00:00

Constify device_get_match_data() as OF and ACPI variants return
constant value.

Acked-by: Sakari Ailus 
Signed-off-by: Andy Shevchenko 
Reviewed-by: Mika Westerberg 
Signed-off-by: Rafael J. Wysocki

ACPI / bus: Rename acpi_get_match_data() to acpi_device_get_match_data()

2018-02-12T09:41:10+00:00

Do the renaming to be consistent with its sibling, i.e.
of_device_get_match_data().

No functional change.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Mika Westerberg 
Signed-off-by: Rafael J. Wysocki

ACPI / bus: Remove checks in acpi_get_match_data()

2018-02-12T09:41:10+00:00

As well as its sibling of_device_get_match_data() has no such checks,
no need to do it in acpi_get_match_data().

First of all, we are not supposed to call fwnode API like this without
driver attached.

Second, since __acpi_match_device() does check input parameter there is
no need to duplicate it outside.

And last but not least one, the API should still serve the cases when
ACPI device is enumerated via PRP0001. In such case driver has neither
ACPI table nor driver data there.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Mika Westerberg 
Signed-off-by: Rafael J. Wysocki

ACPI / bus: Do not traverse through non-existed device table

2018-02-12T09:41:09+00:00

When __acpi_match_device() is called it would be possible to have
ACPI ID table a NULL pointer. To avoid potential dereference,
check for this before traverse.

While here, remove redundant 'else'.

Note, this patch implies a bit of refactoring acpi_of_match_device()
to return pointer to OF ID when matched followed by refactoring
__acpi_match_device() to return either ACPI or OF ID when matches.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Mika Westerberg 
Signed-off-by: Rafael J. Wysocki

Merge tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2018-02-09T17:44:25+00:00

Pull more ACPI updates from Rafael Wysocki:
 "These are mostly fixes and cleanups, a few new quirks, a couple of
  updates related to the handling of ACPI tables and ACPICA copyrights
  refreshment.

  Specifics:

   - Update the ACPICA kernel code to upstream revision 20180105
     including:
       * Assorted fixes (Jung-uk Kim)
       * Support for X32 ABI compilation (Anuj Mittal)
       * Update of ACPICA copyrights to 2018 (Bob Moore)

   - Prepare for future modifications to avoid executing the _STA
     control method too early (Hans de Goede)

   - Make the processor performance control library code ignore _PPC
     notifications if they cannot be handled and fix up the C1 idle
     state definition when it is used as a fallback state (Chen Yu,
     Yazen Ghannam)

   - Make it possible to use the SPCR table on x86 and to replace the
     original IORT table with a new one from initrd (Prarit Bhargava,
     Shunyong Yang)

   - Add battery-related quirks for Asus UX360UA and UX410UAK and add
     quirks for table parsing on Dell XPS 9570 and Precision M5530 (Kai
     Heng Feng)

   - Address static checker warnings in the CPPC code (Gustavo Silva)

   - Avoid printing a raw pointer to the kernel log in the smart battery
     driver (Greg Kroah-Hartman)"

* tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: sbshc: remove raw pointer from printk() message
  ACPI: SPCR: Make SPCR available to x86
  ACPI / CPPC: Use 64-bit arithmetic instead of 32-bit
  ACPI / tables: Add IORT to injectable table list
  ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
  ACPICA: Update version to 20180105
  ACPICA: All acpica: Update copyrights to 2018
  ACPI / processor: Set default C1 idle state description
  ACPI / battery: Add quirk for Asus UX360UA and UX410UAK
  ACPI: processor_perflib: Do not send _PPC change notification if not ready
  ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs
  ACPI / bus: Do not call _STA on battery devices with unmet dependencies
  PCI: acpiphp_ibm: prepare for acpi_get_object_info() no longer returning status
  ACPI: export acpi_bus_get_status_handle()
  ACPICA: Add a missing pair of parentheses
  ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR()
  ACPICA: Avoid NULL pointer arithmetic
  ACPICA: Linux: add support for X32 ABI compilation
  ACPI / video: Use true for boolean value

ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530

2018-02-06T17:28:24+00:00

The i2c touchpad on Dell XPS 9570 and Precision M5530 doesn't work out
of box.

The touchpad relies on its _INI method to update its _HID value from
XXXX0000 to SYNA2393.

Also, the _STA relies on value of I2CN to report correct status.

Set acpi_gbl_parse_table_as_term_list so the value of I2CN can be
correctly set up, and _INI can get run. The ACPI table in this machine
is designed to get parsed this way.

Also, change the quirk table to a more generic name.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=198515
Signed-off-by: Kai-Heng Feng 
Signed-off-by: Rafael J. Wysocki

ACPI / bus: Do not call _STA on battery devices with unmet dependencies

2018-02-04T08:11:56+00:00

The battery code uses acpi_device->dep_unmet to check for unmet deps and
if there are unmet deps it does not bind to the device to avoid errors
about missing OpRegions when calling ACPI methods on the device.

The missing OpRegions when there are unmet deps problem also applies to
the _STA method of some battery devices and calling it too early results
in errors like these:

[    0.123579] ACPI Error: No handler for Region [ECRM] (00000000ba9edc4c)
               [GenericSerialBus] (20170831/evregion-166)
[    0.123601] ACPI Error: Region GenericSerialBus (ID=9) has no handler
               (20170831/exfldio-299)
[    0.123618] ACPI Error: Method parse/execution failed
               \_SB.I2C1.BAT1._STA, AE_NOT_EXIST (20170831/psparse-550)

This commit fixes these errors happening when acpi_get_bus_status gets
called by checking dep_unmet for battery devices and reporting a status
of 0 until all dependencies are met.

Signed-off-by: Hans de Goede 
Signed-off-by: Rafael J. Wysocki

ACPI: export acpi_bus_get_status_handle()

2018-02-04T08:11:56+00:00

Some modular drivers need this, export it.

Signed-off-by: Hans de Goede 
Signed-off-by: Rafael J. Wysocki

ACPI / bus: Introduce acpi_get_match_data() function

2017-12-13T08:40:57+00:00

OF has of_device_get_match_data() function to extract driver specific data
structure. Add a similar function for ACPI.

Signed-off-by: Sinan Kaya 
Acked-by: Rafael J. Wysocki 
Signed-off-by: Vinod Koul