On Fri, Nov 22, 2013 at 2:50 PM, Ezequiel Garcia <ezequiel.garcia@xxxxxxxxxxxxxxxxxx> wrote: [...] > > And why specifically *2* seconds, instead of *1* or *33* ? > > Sounds a bit like voodoo magic on this side :-) Consider the scenario where the actual time is 00:00:01.95 secs. Due to the 1 second resolution of the RTC, reading the registers would return 00:00:01. By the time we get to updating the RTC register for the shutdown by adding 1 sec (theoretically the smallest delta) we could end up programming the time that's already passed and in such cases the system will never shut down. 2 secs is the smallest delay that we can use to get the system to shutdown reliably. So it's not voodoo magic after all ;) Regards, Vaibhav -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
