Merge tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:

 - Rework of the ACPI namespace scanning code from Rafael J.  Wysocki
   with contributions from Bjorn Helgaas, Jiang Liu, Mika Westerberg,
   Toshi Kani, and Yinghai Lu.

 - ACPI power resources handling and ACPI device PM update from Rafael
   J Wysocki.

 - ACPICA update to version 20130117 from Bob Moore and Lv Zheng with
   contributions from Aaron Lu, Chao Guan, Jesper Juhl, and Tim Gardner.

 - Support for Intel Lynxpoint LPSS from Mika Westerberg.

 - cpuidle update from Len Brown including Intel Haswell support, C1
   state for intel_idle, removal of global pm_idle.

 - cpuidle fixes and cleanups from Daniel Lezcano.

 - cpufreq fixes and cleanups from Viresh Kumar and Fabio Baltieri with
   contributions from Stratos Karafotis and Rickard Andersson.

 - Intel P-states driver for Sandy Bridge processors from Dirk
   Brandewie.

 - cpufreq driver for Marvell Kirkwood SoCs from Andrew Lunn.

 - cpufreq fixes related to ordering issues between acpi-cpufreq and
   powernow-k8 from Borislav Petkov and Matthew Garrett.

 - cpufreq support for Calxeda Highbank processors from Mark Langsdorf
   and Rob Herring.

 - cpufreq driver for the Freescale i.MX6Q SoC and cpufreq-cpu0 update
   from Shawn Guo.

 - cpufreq Exynos fixes and cleanups from Jonghwan Choi, Sachin Kamat,
   and Inderpal Singh.

 - Support for "lightweight suspend" from Zhang Rui.

 - Removal of the deprecated power trace API from Paul Gortmaker.

 - Assorted updates from Andreas Fleig, Colin Ian King, Davidlohr Bueso,
   Joseph Salisbury, Kees Cook, Li Fei, Nishanth Menon, ShuoX Liu,
   Srinivas Pandruvada, Tejun Heo, Thomas Renninger, and Yasuaki
   Ishimatsu.

* tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (267 commits)
  PM idle: remove global declaration of pm_idle
  unicore32 idle: delete stray pm_idle comment
  openrisc idle: delete pm_idle
  mn10300 idle: delete pm_idle
  microblaze idle: delete pm_idle
  m32r idle: delete pm_idle, and other dead idle code
  ia64 idle: delete pm_idle
  cris idle: delete idle and pm_idle
  ARM64 idle: delete pm_idle
  ARM idle: delete pm_idle
  blackfin idle: delete pm_idle
  sparc idle: rename pm_idle to sparc_idle
  sh idle: rename global pm_idle to static sh_idle
  x86 idle: rename global pm_idle to static x86_idle
  APM idle: register apm_cpu_idle via cpuidle
  cpufreq / intel_pstate: Add kernel command line option disable intel_pstate.
  cpufreq / intel_pstate: Change to disallow module build
  tools/power turbostat: display SMI count by default
  intel_idle: export both C1 and C1E
  ACPI / hotplug: Fix concurrency issues and memory leaks
  ...

7 files changed, 110 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D0 b/Documentation/ABI/testing/sysfs-devices-power_resources_D0
new file mode 100644
index 00000000000..73b77a6be19
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D0
@@ -0,0 +1,13 @@
+What:		/sys/devices/.../power_resources_D0/
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../power_resources_D0/ directory is only
+		present for device objects representing ACPI device nodes that
+		use ACPI power resources for power management.
+
+		If present, it contains symbolic links to device directories
+		representing ACPI power resources that need to be turned on for
+		the given device node to be in ACPI power state D0.  The names
+		of the links are the same as the names of the directories they
+		point to.
diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D1 b/Documentation/ABI/testing/sysfs-devices-power_resources_D1
new file mode 100644
index 00000000000..30c20703fb8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D1
@@ -0,0 +1,14 @@
+What:		/sys/devices/.../power_resources_D1/
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../power_resources_D1/ directory is only
+		present for device objects representing ACPI device nodes that
+		use ACPI power resources for power management and support ACPI
+		power state D1.
+
+		If present, it contains symbolic links to device directories
+		representing ACPI power resources that need to be turned on for
+		the given device node to be in ACPI power state D1.  The names
+		of the links are the same as the names of the directories they
+		point to.
diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D2 b/Documentation/ABI/testing/sysfs-devices-power_resources_D2
new file mode 100644
index 00000000000..fd9d84b421e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D2
@@ -0,0 +1,14 @@
+What:		/sys/devices/.../power_resources_D2/
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../power_resources_D2/ directory is only
+		present for device objects representing ACPI device nodes that
+		use ACPI power resources for power management and support ACPI
+		power state D2.
+
+		If present, it contains symbolic links to device directories
+		representing ACPI power resources that need to be turned on for
+		the given device node to be in ACPI power state D2.  The names
+		of the links are the same as the names of the directories they
+		point to.
diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D3hot b/Documentation/ABI/testing/sysfs-devices-power_resources_D3hot
new file mode 100644
index 00000000000..3df32c20add
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D3hot
@@ -0,0 +1,14 @@
+What:		/sys/devices/.../power_resources_D3hot/
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../power_resources_D3hot/ directory is only
+		present for device objects representing ACPI device nodes that
+		use ACPI power resources for power management and support ACPI
+		power state D3hot.
+
+		If present, it contains symbolic links to device directories
+		representing ACPI power resources that need to be turned on for
+		the given device node to be in ACPI power state D3hot.  The
+		names of the links are the same as the names of the directories
+		they point to.
diff --git a/Documentation/ABI/testing/sysfs-devices-power_state b/Documentation/ABI/testing/sysfs-devices-power_state
new file mode 100644
index 00000000000..7ad9546748f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-power_state
@@ -0,0 +1,20 @@
+What:		/sys/devices/.../power_state
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../power_state attribute is only present for
+		device objects representing ACPI device nodes that provide power
+		management methods.
+
+		If present, it contains a string representing the current ACPI
+		power state of the given device node.  Its possible values,
+		"D0", "D1", "D2", "D3hot", and "D3cold", reflect the power state
+		names defined by the ACPI specification (ACPI 4 and above).
+
+		If the device node uses shared ACPI power resources, this state
+		determines a list of power resources required not to be turned
+		off.  However, some power resources needed by the device node in
+		higher-power (lower-number) states may also be ON because of
+		some other devices using them at the moment.
+
+		This attribute is read-only.
diff --git a/Documentation/ABI/testing/sysfs-devices-real_power_state b/Documentation/ABI/testing/sysfs-devices-real_power_state
new file mode 100644
index 00000000000..8b3527c82a7
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-real_power_state
@@ -0,0 +1,23 @@
+What:		/sys/devices/.../real_power_state
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../real_power_state attribute is only present
+		for device objects representing ACPI device nodes that provide
+		power management methods and use ACPI power resources for power
+		management.
+
+		If present, it contains a string representing the real ACPI
+		power state of the given device node as returned by the _PSC
+		control method or inferred from the configuration of power
+		resources.  Its possible values, "D0", "D1", "D2", "D3hot", and
+		"D3cold", reflect the power state names defined by the ACPI
+		specification (ACPI 4 and above).
+
+		In some situations the value of this attribute may be different
+		from the value of the /sys/devices/.../power_state attribute for
+		the same device object.  If that happens, some shared power
+		resources used by the device node are only ON because of some
+		other devices using them at the moment.
+
+		This attribute is read-only.
diff --git a/Documentation/ABI/testing/sysfs-devices-resource_in_use b/Documentation/ABI/testing/sysfs-devices-resource_in_use
new file mode 100644
index 00000000000..b4a3bc5922a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-resource_in_use
@@ -0,0 +1,12 @@
+What:		/sys/devices/.../resource_in_use
+Date:		January 2013
+Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+		The /sys/devices/.../resource_in_use attribute is only present
+		for device objects representing ACPI power resources.
+
+		If present, it contains a number (0 or 1) representing the
+		current status of the given power resource (0 means that the
+		resource is not in use and therefore it has been turned off).
+
+		This attribute is read-only.