On Mon, Dec 25, 2023 at 03:21:04PM -0500, Felix Zhang wrote:
> Starting v6.5, Bluetooth does not work at all on my T2
> MacBookAir9,1 with the BCM4377 chip. When I boot up the computer,
> go into bluetoothctl, and then try to run commands like scan on,
> show, list, it returns "No default controller available." I have
> tried reloading the kernel module, in which the log outputs
> "{Added,Removed} hci0 (unconfigured)." With this patch, I
> am able to use Bluetooth as normal without any errors regarding
> hci0 being unconfigured. However, an issue is still present
> where sometimes hci_bcm4377 will have to be reloaded in order to
> get bluetooth to work. I believe this was still present before
> the previously mentioned commit.
>
> I would also like to thank Kerem Karabay <kekrby@xxxxxxxxx> for
> assisting me with this patch.
>
> Fixes: 6945795bc81a ("Bluetooth: fix use-bdaddr-property quirk")
> Cc: <stable@xxxxxxxxxxxxxxx>
> Signed-off-by: Felix Zhang <mrman@xxxxxxxxxxxxx>
> ---
> v4:
> * Adjust the format to pass the CI (again).
> * Shorten description
As explained here:
https://lore.kernel.org/all/ZYv8tp3fMiAqK8OI@xxxxxxxxxxxxxxxxxxxx/
I don't this is necessarily the right fix. The BD_ADDR quirk property
should not be set unconditionally but it is still needed for devices
that lack storage for a unique device address.
So the following fix is needed either way and is probably all that is
needed here:
https://lore.kernel.org/lkml/20231227101003.10534-1-johan+linaro@xxxxxxxxxx/
Johan
