[GIT PULL] ACPI and power management fixes for 3.17-rc7

From: Rafael J. Wysocki
Date: Thu Sep 25 2014 - 17:56:24 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 v3.17-rc7 (or
for the final v3.17 if there's no -rc7) with top-most commit

Merge branches 'pm-cpufreq' and 'pm-sleep'

on top of commit 0f33be009b89d2268e94194dc4fd01a7851b6d51

Linux 3.17-rc6

These are regression fixes (ACPI hotplug, cpufreq, hibernation, ACPI
LPSS driver), fixes for stuff that never worked correctly (ACPI GPIO
support in some cases and a wrong sign of an error code in the ACPI
core in one place), and one blacklist item for ACPI backlight handling.


- Revert of a recent hibernation core commit that introduced
a NULL pointer dereference during resume for at least one user
(Rafael J Wysocki).

- Fix for the ACPI LPSS (Low-Power Subsystem) driver to disable
asynchronous PM callback execution for LPSS devices during system
suspend/resume (introduced in 3.16) which turns out to break
ordering expectations on some systems. From Fu Zhonghui.

- cpufreq core fix related to the handling of sysfs nodes during
system suspend/resume that has been broken for intel_pstate
since 3.15 from Lan Tianyu.

- Restore the generation of "online" uevents for ACPI container
devices that was removed in 3.14, but some user space utilities
turn out to need them (Rafael J Wysocki).

- The cpufreq core fails to release a lock in an error code path
after changes made in 3.14. Fix from Prarit Bhargava.

- ACPICA and ACPI/GPIO fixes to make the handling of ACPI GPIO
operation regions (which means AML using GPIOs) work correctly
in all cases from Bob Moore and Srinivas Pandruvada.

- Fix for a wrong sign of the ACPI core's create_modalias() return
value in case of an error from Mika Westerberg.

- ACPI backlight blacklist entry for ThinkPad X201s from Aaron Lu.



Aaron Lu (1):
ACPI / video: disable native backlight for ThinkPad X201s

Bob Moore (1):
ACPICA: Update to GPIO region handler interface.

Fu Zhonghui (1):
ACPI / platform / LPSS: disable async suspend/resume of LPSS devices

Lan Tianyu (1):
cpufreq: fix cpufreq suspend/resume for intel_pstate

Mika Westerberg (1):
ACPI / scan: Correct error return value of create_modalias()

Prarit Bhargava (1):
cpufreq: release policy->rwsem on error

Rafael J. Wysocki (2):
ACPI / hotplug: Generate online uevents for ACPI containers
Revert "PM / Hibernate: Iterate over set bits instead of PFNs in

Srinivas Pandruvada (1):
gpio / ACPI: Use pin index and bit length


drivers/acpi/acpi_lpss.c | 1 -
drivers/acpi/acpica/aclocal.h | 1 +
drivers/acpi/acpica/acobject.h | 1 +
drivers/acpi/acpica/dsfield.c | 2 ++
drivers/acpi/acpica/evregion.c | 47 +++++++++++++++++++----------
drivers/acpi/acpica/exfield.c | 67 ++++++++++++++++++++++++++++++++++++++++++
drivers/acpi/acpica/exprep.c | 2 ++
drivers/acpi/container.c | 8 +++++
drivers/acpi/scan.c | 5 +++-
drivers/acpi/video.c | 8 +++++
drivers/cpufreq/cpufreq.c | 10 ++++---
drivers/gpio/gpiolib-acpi.c | 5 +++-
include/acpi/acpi_bus.h | 1 +
kernel/power/snapshot.c | 50 ++++++++++---------------------
14 files changed, 150 insertions(+), 58 deletions(-)
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