@Estel, I am thinking of a better way to do recalculations of SR calibrations, the way it is done now is not the optimal. Otherwise there should be no problem to export some "SR adjustment" to userspace through sysfs.

And of course for those who has their devices already undervolted to maximum there won't be "magical" battery saving, yet still there are (1-2 hours of heavy usage that is what I see here). And have in mind that biggest consumer is screen, not DSP/MPU, so we are near the maximum possible battery saving that could be achieved