ONKEY interrupt is trapped in PMU occasionally on resuming

Andy Green andy at openmoko.com
Mon Feb 4 17:41:26 CET 2008

Hash: SHA1

Somebody in the thread at some point said:

>> Do you think we have to check the value we read from INT1~INT5? INT2 is
>> 0xff when this issue occurs, but the EXTON1~EXTON3 is connected to
>> ground......... 
> As I know, EXTON1-3 connect to ground was following NXP's instruction in
> order to avoid battery insert auto-on issue.

Hi Tony -

Connecting them to 0V is fine, but if INT2 register comes back as 0xff,
if we believed it was true it means that all of EXTON1 - EXTON3 saw
rising and falling edges... it seems we shouldn't believe what we saw in
that register.  Which means something else bad and / or crazy is
happening :-O

But actually I am frightened about the PMU anyway because of other
behaviours I didn't understand, it's good if we find out some things
about it now.

- -Andy
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