On Fri, May 18, 2012 at 12:03 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > On Friday, May 18, 2012, Santosh Shilimkar wrote: >> 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. > > That should be Len, but he's been silent recently. > > How urgent is it? Len silently picked up the last version. I just posted two fixes to it, hopefully he'll pick up those too. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/linux-pm
