andy git 06/15 suspend/resume observations

[Sean McNeil]

Andy,

This is great work. I have the following observations...

Pros:
display looks so nice now on resume. No flash at all, no degradation 
over time while suspended.
Resume speed seems much better as well.
I think I had some sort of invalid wakeup before. I thought it was 
because of the GSM but now I am uncertain. I no longer get the 
mysterious resumes.

Cons:
audio pop is still there for me. I don't know if you committed changes 
that should affect it. When I do fully resume and write to the device it 
hangs. Perhaps they are both related to something with DMA? I get around 
the hang in the application layer by using a timeout, close, reopen. 
That brings audio back to life.
Also, still getting hangs where it will not resume. The only thing I can 
do at this point is to ping the device over usb. I have root mounted 
over usb, by the way, but I don't think that is the issue.