[Bug 198953] hci_bcm: Streamline runtime PM code change for 4.16 kernel breaks bluetooth on ASUS T100TA

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https://bugzilla.kernel.org/show_bug.cgi?id=198953

--- Comment #14 from Robert R. Howell (rhowell@uwyo.edu) ---
Hi Hans

I've tested your patches on all three machines mentioned above (The ASUS
T100TA, ASUS T100TAM, and Toshiba Encore) and Bluetooth seems to be working
well on all of them.

I started with the 4.16-rc5 kernel, reverted the "Streamline runtime PM code"
patch, applied your three patches, then applied one patch of my own (which I'll
attach in a minute) which simply adds the Encore BCM2E38 ID to those listed in
your third patch.  (I also then add some other necessary Baytrail patches but
those don't involve Bluetooth.)

>From dmesg I do see the notice your code outputs about the "usually wrong"
interrupt polarity for all three devices.  And as far as I can tell in about
1/2 hour of testing, Bluetooth is working well.  I don't see any unusual
Bluetooth messages in the dmesg output either.

Thanks for your work on these Baytrail devices.  Let me know if there is
anything else I can do.

Bob Howell

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