[Bug 1505241] Re: Phone does not suspend

[Simon Fels]

I looked through the code in the mx4 kernel now a bit more and the
reason for the hold wakelock is that there is simply data flowing.  What
triggers the data flow or what data is actually flowing is not clear yet
but I don't see any HCI frames receiving on the bluetooth stack side so
far when this happens.

Next steps are to find a proper fix:

1. Find out what is actually sending data and why
2. Look into the difference between mx4 and krillin on the kernel side and see if that helps us
3. Trace the trigger through the whole MTK stack and see what is actually causing the activity

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https://bugs.launchpad.net/bugs/1505241

Title:
  Phone does not suspend

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