> -----Original Message----- > From: Premi, Sanjeev > Sent: Thursday, May 27, 2010 10:30 PM [...] > > > > 3) Was there any specific need to tie the functions "opp_get_voltage" > and others to cpufreq only? > > yes, because without cpufreq there is no transitions in the system :) > > [sp] I does - via bootarg - mpurate! > > When kernel boots, volatge must be set properly. > We cannot rely on u-boot to be settiing everything correctly. e.g. 720MHz > on OMAP3530 would fail at nominal 1.2V set by u-boot. I agree, but mpurate does not seem to use the cpufreq interfaces - so is kinda a question how it interfaces back -> but note, mpurate tells us what the start freq is for the system - it still does no *dynamic* transitions - just a static startup frequency. But I agree, it assumes that if you provide mpurate, the system supposedly is operating at that frequency, aka all setups have been done for that operational frequency(including voltage) Regards, Nishanth Menon -- 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
