Merge tag 'pm+acpi-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:
 "These are a few regression fixes for ACPI device enumeration and
  resources management, intel_pstate and cpufreq, a revert of an ACPI
  commit removing user space interfaces in /proc that we incorrectly
  thought were not used any more, fixes for some long-standing
  concurrency issues in the ACPI EC driver, two ACPI battery driver
  fixes, stable-candidate fixes for intel_pstate, an ACPI-related fix
  for i915 and two new ACPI video blacklist entries for Win8-oriented
  BIOSes.

  Specifics:

   - Missing device ID for ACPI enumeration of PNP devices that we
     overlooked during the recent rework of that code from Zhang Rui.

   - Fix for a problem introduced during the 3.14 cycle in the ACPI
     device resources management code and causing it to reject all
     resources of length 0 although some of them are actually valid
     which affects serial ports detection on a number of systems.  From
     Andy Whitcroft.

   - intel_pstate fix for a boot problem on some BayTrail-based systems
     introduced by a previous fix related to that platform during the
     3.13 cycle from Dirk Brandewie.

   - Revert of a 3.13 commit that removed the ACPI AC /proc interface
     which turns out to be still needed by some old utilities
     (kpowersave from kde 3.5.10 in particular) from Lan Tianyu.

   - cpufreq build fix for the davinci ARM platform from Prabhakar Lad
     (the breakage was introduced during the 3.10 cycle).

   - ACPI-related i915 fix preventing firmware on some Thinkpad laptops
     from setting backlight levels incorrectly during AC plug/unplug.
     From Aaron Lu.

   - Fixes for two nasty race conditions in the ACPI embedded controller
     driver that may be responsible for a number of past bug reports
     related to the EC from Lv Zhang and a fix for two memory leaks in
     error code paths in that driver from Colin Ian King.

   - Fixes for a couple of corner-case issues in the intel_pstate driver
     (all candidates for -stable) from Dirk Brandewie and Vincent Minet.

   - Fixes for two corner-case issues in the ACPI battery driver from
     Josef Gajdusek and Lan Tianyu.

   - Two new ACPI video blacklist entries for Acer TravelMate B113 and
     Dell Inspiron 5737 from Edward Lin and Martin Kepplinger"

* tag 'pm+acpi-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / PNP: add soc_button_array device ID to PNP IDs list
  cpufreq: Makefile: fix compilation for davinci platform
  ACPI / video: Add Acer TravelMate B113 to native backlight blacklist
  ACPI / video: Add Dell Inspiron 5737 to the blacklist
  ACPI / i915: ignore firmware requests for backlight change
  ACPI / battery: fix wrong value of capacity_now reported when fully charged
  ACPI / resources: only reject zero length resources based at address zero
  ACPI / battery: Retry to get battery information if failed during probing
  ACPI / EC: Free saved_ec on error exit path
  ACPI / EC: Add detailed fields debugging support of EC_SC(R).
  ACPI / EC: Update revision due to recent changes
  ACPI / EC: Fix race condition in ec_transaction_completed()
  ACPI / EC: Remove duplicated ec_wait_ibf0() waiter
  ACPI / EC: Add asynchronous command byte write support
  ACPI / EC: Avoid race condition related to advance_transaction()
  intel_pstate: Set CPU number before accessing MSRs
  intel_pstate: Update documentation of {max,min}_perf_pct sysfs files
  intel_pstate: don't touch turbo bit if turbo disabled or unavailable.
  intel_pstate: Fix setting VID
  Revert "ACPI / AC: Remove AC's proc directory."

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