Re: Fail to enter retention

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Hi Tony,

 I eventually managed to enter retention :))

I did the following changes:
 1. added CONFIG_SUSPEND (though I do not use suspend/resume but only
 cpuidle, it seems to have some effect, I think without it the wakeup in
 console did not function correctly.
 2. enabled sleep for all uart not just the console uart (as I did at first)
 3. uart rx was configured as wakeup source

 Than I can see that cpu0/state4/time is incremented. As I understand state4
 is retention in OMAP3530.

 The only bit strange thing is that I still see picture in screen. I wander
 how omap can enter retention can be while screen is on.

 Thanks very much for your assistance,
 Ran
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