From mboxrd@z Thu Jan  1 00:00:00 1970
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Subject: Re: [PATCHv3 0/4] coupled cpuidle state support
Date: Fri, 18 May 2012 16:06:01 +0530
Message-ID: <4FB62611.7080908@ti.com>
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To: Colin Cross <ccross@android.com>
Cc: Kevin Hilman <khilman@ti.com>, Len Brown <len.brown@intel.com>, Russell King <linux@arm.linux.org.uk>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Kay Sievers <kay.sievers@vrfy.org>, linux-kernel@vger.kernel.org, Amit Kucheria <amit.kucheria@linaro.org>, linux-pm@lists.linux-foundation.org, Arjan van de Ven <arjan@linux.intel.com>, Arnd Bergmann <arnd.bergmann@linaro.org>, linux-arm-kernel@lists.infradead.org
List-Id: linux-pm@vger.kernel.org

On Tuesday 08 May 2012 06:27 AM, Colin Cross wrote:
> On some ARM SMP SoCs (OMAP4460, Tegra 2, and probably more), the
> cpus cannot be independently powered down, either due to
> sequencing restrictions (on Tegra 2, cpu 0 must be the last to
> power down), or due to HW bugs (on OMAP4460, a cpu powering up
> will corrupt the gic state unless the other cpu runs a work
> around).  Each cpu has a power state that it can enter without
> coordinating with the other cpu (usually Wait For Interrupt, or
> WFI), and one or more "coupled" power states that affect blocks
> shared between the cpus (L2 cache, interrupt controller, and
> sometimes the whole SoC).  Entering a coupled power state must
> be tightly controlled on both cpus.
> 

[...]

> This series has been tested and reviewed by Santosh and Kevin
> for OMAP4, which has a cpuidle series ready for 3.5, and Tegra
> and Exynos5 patches are in progress.  I think this is ready to
> go in.  Lean, are you maintaining a cpuidle tree for linux-next?
> If not, I can publish a tree for linux-next, or this could go in
> through Arnd's tree.

I haven't seen any response so far on who is lining up this
series for 3.5 ? Not sure if it made it to linux-next either.

Regards
santosh