OMAP4: PM: suspend, CPU-hotplug and CPUilde support

Hi Santosh,

Quoted 33 lines · Santosh Shilimkar

This series adds OMAP4 MPUSS (MPU SubSystem) power management support for suspend (S2R), CPU hotplug and CPUidle.

Most of these patches have been posted and reviewed earlier [1] on the list and have missed last couple of merge windows because of dependencies. New set of patches have diverged more and hence the series version continuity isn't maintained.

Below are the main updates from previous versions.
- Use of generic ARM suspend hooks instead of OMAP custom code.
- Making use of common GIC code instead of OMAP custom code.
- Use of generic CPU PM notifiers for CPUIDLE and suspend.
- Use of CPU PM notifiers and hotplug notifiers for GIC extension.
- PM support of OMAP4 HS devices.
- Introduction of interconnect barriers as per the OMAP4 requirements.

Special thanks to,
- Kevin Hilman for the detailed reviews.
- Russell for adding the L2 cache handling support to generic suspend.
- Colin Cross for the generic CPU PM notifier patches.
- Rajendra Nayak and Paul Walmsley for clock-domain sequencing series.

Below series has dependency on Russell's L2 generic suspend support [2] and earlier posted CPU PM notifiers series [3].
An integrated branch with these dependencies can be found here [4].

The series is tested on OMAP4430 SDP for suspend, hotplug and CPUidle with OMAP4 GP and HS (secure) devices.

The following changes since commit c6a389f123b9f68d605bb7e0f9b32ec1e3e14132:

Linux 3.1-rc4 (2011-08-28 21:16:01 -0700)

Quoted 2 lines

are available in the git repository at:
git://gitorious.org/omap-sw-develoment/linux-omap-dev.git v3.1-rc4-omap4-mpuss-pm

Some comments have been sent on this patch set, otherwise OK after review.

FWIW:

Acked-by Jean Pihet<[email protected]>