On Sat, 2012-02-11 at 14:39 +0000, Mark Brown wrote: > > For step downs this isn't such a big deal as we don't often care if the > voltage drops immediately but for step ups it's critical as if the > voltage hasn't ramped before the CPU tries to run at the higher > frequency the CPU will brown out. Why isn't all this done by micro-controllers, software writes a desired state in some machine register (fast), micro-controller sets about making it so in an asynchronous way. If it finds the settings have changed by the time it reached its former goal, goto 1. Having to actually wait for this in software is quite ridiculous. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
