On 06/25/2013 03:23 AM, Joseph Lo wrote: > Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework > to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering > this state. I tried applying this patch, your series "[PATCH V3 0/3] ARM: tegra114: cpuidle: add power down state", and your series "[PATCH V2 00/11] ARM: tegra114: add support for system suspend", all on top of v3.11-rc1. On Dalmore, the new cpuidle mode /appears/ to work (I see increasing values in the sysfs cpuidle "usage" file for all defined cpuidle states), but I don't see the "CPU VDD off" LED light up; I'm not convinced that the CPU is actually being powered off in the idle mode. With these patches applies, Harmony acts very strangely. After hot-unplug and re-plug of CPU1, the system is hung or almost hung. The patches appear to reduce the amount of time CPU VDD is off judging by the LEDs. The patches might cause issues with system suspend too, but I'm not 100% sure. As such, I haven't applied any of these. Can you please test boards for all of Tegra20/30/114, and validate that on Dalmore the CPU power is actually being turned off, and report back? Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html