linux/kernel/power
Nishanth Menon e1f60b292f PM: Introduce library for device-specific OPPs (v7)
SoCs have a standard set of tuples consisting of frequency and
voltage pairs that the device will support per voltage domain. These
are called Operating Performance Points or OPPs. The actual
definitions of OPP varies over silicon versions. For a specific domain,
we can have a set of {frequency, voltage} pairs. As the kernel boots
and more information is available, a default set of these are activated
based on the precise nature of device. Further on operation, based on
conditions prevailing in the system (such as temperature), some OPP
availability may be temporarily controlled by the SoC frameworks.

To implement an OPP, some sort of power management support is necessary
hence this library depends on CONFIG_PM.

Contributions include:
Sanjeev Premi for the initial concept:
	http://patchwork.kernel.org/patch/50998/
Kevin Hilman for converting original design to device-based.
Kevin Hilman and Paul Walmsey for cleaning up many of the function
abstractions, improvements and data structure handling.
Romit Dasgupta for using enums instead of opp pointers.
Thara Gopinath, Eduardo Valentin and Vishwanath BS for fixes and
cleanups.
Linus Walleij for recommending this layer be made generic for usage
in other architectures beyond OMAP and ARM.
Mark Brown, Andrew Morton, Rafael J. Wysocki, Paul E. McKenney for
valuable improvements.

Discussions and comments from:
http://marc.info/?l=linux-omap&m=126033945313269&w=2
http://marc.info/?l=linux-omap&m=125482970102327&w=2
http://marc.info/?t=125809247500002&r=1&w=2
http://marc.info/?l=linux-omap&m=126025973426007&w=2
http://marc.info/?t=128152609200064&r=1&w=2
http://marc.info/?t=128468723000002&r=1&w=2
incorporated.

v1: http://marc.info/?t=128468723000002&r=1&w=2

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-10-17 01:57:50 +02:00
..
block_io.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
console.c vt: introduce and use vt_kmsg_redirect() function 2009-12-15 08:53:28 -08:00
hibernate.c PM / Hibernate: Make some boot messages look less scary 2010-10-17 01:57:48 +02:00
Kconfig PM: Introduce library for device-specific OPPs (v7) 2010-10-17 01:57:50 +02:00
main.c PM: Add sysfs attr for rechecking dev hash from PM trace 2010-10-17 01:57:50 +02:00
Makefile suspend: Move NVS save/restore code to generic suspend functionality 2010-06-10 11:02:34 -04:00
nvs.c suspend: Move NVS save/restore code to generic suspend functionality 2010-06-10 11:02:34 -04:00
power.h PM / Hibernate: Make default image size depend on total RAM size 2010-10-17 01:57:43 +02:00
poweroff.c Input: sysrq - drop tty argument from sysrq ops handlers 2010-08-19 22:07:06 -07:00
process.c PM: Allow wakeup events to abort freezing of tasks 2010-10-17 01:57:49 +02:00
snapshot.c PM / Hibernate: Make default image size depend on total RAM size 2010-10-17 01:57:43 +02:00
suspend_test.c PM: Make warning in suspend_test_finish() less likely to happen 2009-10-22 08:23:45 +09:00
suspend.c PM / Suspend: Fix ordering of calls in suspend error paths 2010-07-19 02:00:35 +02:00
swap.c PM / Hibernate: Modify signature used to mark swap 2010-10-17 01:57:49 +02:00
user.c PM / Hibernate: Snapshot cleanup 2010-05-10 23:08:17 +02:00