USB and suspend. Will it still charge?

[Andy Green]

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Somebody in the thread at some point said:
| This afternoon I recognized my laptop throwing a note about "USB device
| detached" when Freerunner goes suspend.
| Raster knows, at least Windows definitely will power down the
USB-connector
| when it sees USB-disconnect.
|
| Maybe we should investigate this, and should clock down the CPU and
shut off
| LCM, but not go to suspend while charging.
| I should mention I'm not even sure Freerunner did charge at all at this
| moment, just in case this makes a difference.

What's the actual concern there?  If it is to do with missing charging
state change, the PMU throws an interrupt to the CPU on USB connector
insertion and removal, AFAIK these will cause wake.

- -Andy

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