Public bug reported:
[Impact]
Sometimes QCA Rome Bluetooth USB host doesn't work after S3:
[ 165.110742] Bluetooth: hci0: using NVM file: qca/nvm_usb_00000302.bin
[ 168.432065] Bluetooth: hci0: Failed to send body at 4 of 1953 (-110)
This is due to USB core enables LPM two times after S3.
[Fix]
Only enable LPM once.
[Test]
The Bluetooth USB works all the time after applying the fix.
[Regression Potential]
Low. Enabling a hardware feature twice in a row isn't right, I'd be surprise if
any hardware relies on this driver behavior.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: originate-from-1783725 somerville
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https://bugs.launchpad.net/bugs/1812812
Title:
Fix non-working QCA Rome Bluetooth after S3
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