On Wed 2006-12-13 15:12:07, Eugeny S. Mints wrote: > David Brownell wrote: > > On Tuesday 19 September 2006 11:25 am, Pavel Machek wrote: > >> Could you perhaps provide list of operating points for 770? It would > >> help understanding a bit, I'd say. > > > > If there was a followup here, I missed it ... > > > > ISTR that it doesn't use (formal) operating points, and that a lot of the > > basic SOC power savings (vs powering off the display or wifi) come from a > > different kind of mechanism entirely. Namely, a combination of dynamic > > tick with a modified system idle task, which enters one of the OMAP low > > power modes during those long periods between clock ticks or other irqs. > > > > That's one of the standard power saving schemes used on OMAP1 platforms > > with Linux. > sample of reasonable operating points for OMAP1 platforms along with appropriate > patches may be found at http://dynamicpower.sourceforge.net/dpm-omap.html Okay... so you have system with 4 different cpu speeds. That should be simple enough to get running using cpufreq, no need for complex operating points patches. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
