[GIT PULL] ACPI and power management fixes for v3.16-rc5

From: Rafael J. Wysocki
Date: Thu Jul 10 2014 - 16:14:31 EST

Hi Linus,

Please pull from

git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \

to receive ACPI and power management fixes for v3.16-rc5
with top-most commit 2091044299e9bc3340d845301b13bd92d6c10993

Merge branch 'pm-cpufreq'

on top of commit cd3de83f147601356395b57a8673e9c5ff1e59d1

Linux 3.16-rc4

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.


- 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.



Aaron Lu (1):
ACPI / i915: ignore firmware requests for backlight change

Andy Whitcroft (1):
ACPI / resources: only reject zero length resources based at address zero

Colin Ian King (1):
ACPI / EC: Free saved_ec on error exit path

Dirk Brandewie (3):
intel_pstate: Fix setting VID
intel_pstate: don't touch turbo bit if turbo disabled or unavailable.
intel_pstate: Update documentation of {max,min}_perf_pct sysfs files

Edward Lin (1):
ACPI / video: Add Dell Inspiron 5737 to the blacklist

Josef Gajdusek (1):
ACPI / battery: fix wrong value of capacity_now reported when
fully charged

Lan Tianyu (2):
Revert "ACPI / AC: Remove AC's proc directory."
ACPI / battery: Retry to get battery information if failed during probing

Lv Zheng (6):
ACPI / EC: Avoid race condition related to advance_transaction()
ACPI / EC: Add asynchronous command byte write support
ACPI / EC: Remove duplicated ec_wait_ibf0() waiter
ACPI / EC: Fix race condition in ec_transaction_completed()
ACPI / EC: Update revision due to recent changes
ACPI / EC: Add detailed fields debugging support of EC_SC(R).

Martin Kepplinger (1):
ACPI / video: Add Acer TravelMate B113 to native backlight blacklist

Prabhakar Lad (1):
cpufreq: Makefile: fix compilation for davinci platform

Vincent Minet (1):
intel_pstate: Set CPU number before accessing MSRs

Zhang Rui (1):
ACPI / PNP: add soc_button_array device ID to PNP IDs list


Documentation/cpu-freq/intel-pstate.txt | 7 +-
drivers/acpi/ac.c | 130 ++++++++++++++++++++++++-
drivers/acpi/acpi_pnp.c | 2 +
drivers/acpi/battery.c | 41 +++++++-
drivers/acpi/ec.c | 164 +++++++++++++++++---------------
drivers/acpi/resource.c | 10 +-
drivers/acpi/video.c | 11 ++-
drivers/acpi/video_detect.c | 8 ++
drivers/cpufreq/Makefile | 2 +-
drivers/cpufreq/intel_pstate.c | 35 ++++---
drivers/gpu/drm/i915/intel_opregion.c | 9 ++
include/acpi/video.h | 2 +
12 files changed, 317 insertions(+), 104 deletions(-)
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