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HOW to debug the PM issue

hui jin
Prodigy 10 points

Hi,

I am the newbie for omap3430+linux.I know the normal way to fix pm issue is that dump out the PM registers to do the check.

So I still have some questions;

1）How to dump the registers since console is freezed when the system enter into idle but the current is not good ?

2）In http://processors.wiki.ti.com/index.php/OMAP35x_Debug_Steps_for_Idle_Entry ，it mentioned ”a long loop at this same location and then connect with a debugger”.Here the debugger is trace32,right? Connecting the trace32 will prevent the system from the suspend,right?

3）Which part is still live  when CPU enter idle for omap3430? 

5）Where can I get more information about how to debug OMAP power？

thanks a lot!!