linux-kernel - [PATCH 0/6] PM / sleep: Support for quiescing timers during suspend-to-idle

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Date:	Wed, 11 Feb 2015 05:00:15 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Alan Cox <alan@...ux.intel.com>
Cc:	"Li, Aubrey" <aubrey.li@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Kristen Carlson Accardi <kristen@...ux.intel.com>,
	John Stultz <john.stultz@...aro.org>,
	Len Brown <len.brown@...el.com>
Subject: [PATCH 0/6] PM / sleep: Support for quiescing timers during suspend-to-idle

Hi,

This series adds support for quiescing timers during the last state of
suspend-to-idle transitions.

Patches [1-4/6] together are functionally equivalent to the combo RFC patch
I sent last time (http://marc.info/?l=linux-kernel&m=142344909201464&w=4).

Patches [5-6/6] add ->enter_freeze callback implementations to intel_idle
and the ACPI cpuidle driver.

[1/6] - Rework the suspend-to-idle "mechanics" in preparation for the subsequent
        changes.  The existing functionality should not change after this.
[2/6] - Modify update_fast_timekeeper() to take struct tk_read_base pointers as
        arguments.
[3/6] - Make it safe to use the fast timekeeper while suspended.
[4/6] - Support for quiescing timers during suspend-to-idle (core part).
[5/6] - ->enter_freeze callback for intel_idle.
[6/6] - ->enter_freeze callback for ACPI cpuidle.

This works as expected on everything I have in my office and can readily test.

The patches should apply without any problems on top of the current Linus' tree.

Rafael

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