Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (63 commits)
  PM / Clocks: Remove redundant NULL checks before kfree()
  PM / Documentation: Update docs about suspend and CPU hotplug
  ACPI / PM: Add Sony VGN-FW21E to nonvs blacklist.
  ARM: mach-shmobile: sh7372 A4R support (v4)
  ARM: mach-shmobile: sh7372 A3SP support (v4)
  PM / Sleep: Mark devices involved in wakeup signaling during suspend
  PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image
  PM / Hibernate: Do not initialize static and extern variables to 0
  PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too
  PM / Hibernate: Add resumedelay kernel param in addition to resumewait
  MAINTAINERS: Update linux-pm list address
  PM / ACPI: Blacklist Vaio VGN-FW520F machine known to require acpi_sleep=nonvs
  PM / ACPI: Blacklist Sony Vaio known to require acpi_sleep=nonvs
  PM / Hibernate: Add resumewait param to support MMC-like devices as resume file
  PM / Hibernate: Fix typo in a kerneldoc comment
  PM / Hibernate: Freeze kernel threads after preallocating memory
  PM: Update the policy on default wakeup settings
  PM / VT: Cleanup #if defined uglyness and fix compile error
  PM / Suspend: Off by one in pm_suspend()
  PM / Hibernate: Include storage keys in hibernation image on s390
  ...

1 files changed, 52 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq
new file mode 100644
index 000000000000..23d78b5aab11
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-devfreq
@@ -0,0 +1,52 @@
+What:           /sys/class/devfreq/.../
+Date:           September 2011
+Contact:        MyungJoo Ham <myungjoo.ham@samsung.com>
+Description:
+                Provide a place in sysfs for the devfreq objects.
+                This allows accessing various devfreq specific variables.
+                The name of devfreq object denoted as ... is same as the
+                name of device using devfreq.
+
+What:           /sys/class/devfreq/.../governor
+Date:           September 2011
+Contact:        MyungJoo Ham <myungjoo.ham@samsung.com>
+Description:
+                The /sys/class/devfreq/.../governor shows the name of the
+                governor used by the corresponding devfreq object.
+
+What:           /sys/class/devfreq/.../cur_freq
+Date:           September 2011
+Contact:        MyungJoo Ham <myungjoo.ham@samsung.com>
+Description:
+                The /sys/class/devfreq/.../cur_freq shows the current
+                frequency of the corresponding devfreq object.
+
+What:           /sys/class/devfreq/.../central_polling
+Date:           September 2011
+Contact:        MyungJoo Ham <myungjoo.ham@samsung.com>
+Description:
+                The /sys/class/devfreq/.../central_polling shows whether
+                the devfreq ojbect is using devfreq-provided central
+                polling mechanism or not.
+
+What:           /sys/class/devfreq/.../polling_interval
+Date:           September 2011
+Contact:        MyungJoo Ham <myungjoo.ham@samsung.com>
+Description:
+                The /sys/class/devfreq/.../polling_interval shows and sets
+                the requested polling interval of the corresponding devfreq
+                object. The values are represented in ms. If the value is
+                less than 1 jiffy, it is considered to be 0, which means
+                no polling. This value is meaningless if the governor is
+                not polling; thus. If the governor is not using
+                devfreq-provided central polling
+                (/sys/class/devfreq/.../central_polling is 0), this value
+                may be useless.
+
+What:           /sys/class/devfreq/.../userspace/set_freq
+Date:           September 2011
+Contact:        MyungJoo Ham <myungjoo.ham@samsung.com>
+Description:
+                The /sys/class/devfreq/.../userspace/set_freq shows and
+                sets the requested frequency for the devfreq object if
+                userspace governor is in effect.