Documentation: admin-guide: PM: Add cpuidle document

Important information is missing from user/admin cpuidle documentation
available today, so add a new user/admin document for cpuidle containing
current and comprehensive information to admin-guide and drop the old
.txt documents it is replacing.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 0 insertions, 23 deletions

diff --git a/Documentation/cpuidle/core.txt b/Documentation/cpuidle/core.txt
deleted file mode 100644
index 63ecc5dc9d8a..000000000000
--- a/Documentation/cpuidle/core.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-
-		Supporting multiple CPU idle levels in kernel
-
-				cpuidle
-
-General Information:
-
-Various CPUs today support multiple idle levels that are differentiated
-by varying exit latencies and power consumption during idle.
-cpuidle is a generic in-kernel infrastructure that separates
-idle policy (governor) from idle mechanism (driver) and provides a
-standardized infrastructure to support independent development of
-governors and drivers.
-
-cpuidle resides under drivers/cpuidle.
-
-Boot options:
-"cpuidle_sysfs_switch"
-enables current_governor interface in /sys/devices/system/cpu/cpuidle/,
-which can be used to switch governors at run time. This boot option
-is meant for developer testing only. In normal usage, kernel picks the
-best governor based on governor ratings.
-SEE ALSO: sysfs.txt in this directory.