Am Thu, 13 Feb 2014 19:11:41 +0200 hat Grazvydas Ignotas notasas@gmail.com geschrieben:
Hi,
The power consumption doesn't change though, so it seems the core isn't really disabled in the OMAP when doing this.
If CPU idle powersaving is working properly, power usage shouldn't actually change much compared to just idle.
Oh, is CPU idle powersaving that good that a core doesn't need anything anymore when it's not being used?
Seems like our current Power Management really is pretty simple, missing a few features.
We don't know that.. It might be just SoC parts, not CPU powersaving that's not working, at least on OMAP3 there is whole CPU/MPU power domain which probably contains various support circuitry for the CPU. That part was missing powersaving in pandora's 2.6 kernel, and as you remember the battery drain was pretty bad.
True. Right now, we're on Kernel 3.8 No idea if that patch is even included: http://marc.info/?t=137407980100008&r=1&w=2
Fixes wrong voltage settings for OMAP5...
Is TI mostly working on 3.8 or 3.11/3.12 kernels?