2015年7月27日 下午8:54於 "Hans de Goede" <[email protected]>寫道： > > Hi, > > > On 27-07-15 14:36, [email protected] wrote: >> >> Hi again, >> >> one more thing... >> >> Hans de Goede schrieb am 27.07.2015 10:07: >>> >>> IMHO we should just stick with the standard operating points unless we know >>> that there are stability issues with them (such as e.g. on the A10 OlinuxIno >>> Lime). >> >> >> If we stick to the standard operating points, shouldn't we honor their voltages >> as well? If we set the minimum voltage for dcdc2 to 1.0V (as you did) or 1.05V >> (as I did), this means that the lowest operating point of [email protected] defined >> in sun7i-a20.dtsi (and with my definition the 312MHz opp as well) will not be >> available because cpufreq-dt simply ignores operating points that aren't within >> the set voltage range for that regulator. > > > Ah, good point. I don't know what is the right thing todo here. > > ChenYu (in the CC), since you did most of the original work here, do > you know why we have an op at 0.9 volt, but none of our boards allow the > voltage to go that low in the regulator settings ?
I'm on vacation now, so apologies for the bad formatting. The OPPs are from a common subset of the settings from the fex files available at the time. Some fex files actually set min and max voltage thus eliminating the highest and lowest OPPs. At least that is how Maxime and I interpreted them. ChenYu -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
