[PATCH 0/2] Bluetooth: hci_bcm4377: resume after ACPI S3

[Andre Eikmeyer <dev@deq.rocks>]

After ACPI S3 the Bluetooth function of the BCM4377 comes back without
its firmware. Patch 2 probes it again after such a resume.

When the previous controller is still being released, the re-probe
registers the new one under another index, which runs into the probe
return check fixed in patch 1. Patch 1 is a fix on its own and goes
first.

The Wi-Fi function of the same chip needs the same after S3 and goes to
linux-wireless in "wifi: brcmfmac: pcie: S3 suspend and resume on the
T2 Mac chips".

Tested on a MacBookAir9,1 with three S3 cycles, holding the old
controller across each resume so the new one comes up under the other
index.


Andre Eikmeyer (2):
  Bluetooth: hci_bcm4377: treat only negative hci_register_dev() returns
    as errors
  Bluetooth: hci_bcm4377: probe again after a resume through firmware

 drivers/bluetooth/hci_bcm4377.c | 61 ++++++++++++++++++++++++++++++++-
 1 file changed, 60 insertions(+), 1 deletion(-)


base-commit: 3f425f95ba3923d605f6a8b382e8fcdc59d479db