Bug#989777: Debian 10 & 11 with Kernel 5.10.x-amd64 => Intel AX210 Wifi & Bluetooth not work

[Nobuhiro Iwamatsu <iwamatsu@nigauri.org>]

Hi,

> Greetings,
>
> With the most recent weekly build, situation is following:
>
> 1. AX210 *WiFI* functions after removing the corresponding .pnvm file. Details are in the Arch FS #70071 [1]
> 2. Bluetooth does not work at all and indeed floods kernel ring buffer at the rate of >1 msg/sec. Message:
>
> ```
> kern  :info  : [  +0.437457] usb 3-10: new full-speed USB device number 91 using xhci_hcd
> kern  :info  : [  +0.150615] usb 3-10: New USB device found, idVendor=8087, idProduct=0032, bcdDevice= 0.00
> kern  :info  : [  +0.000004] usb 3-10: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> kern  :err   : [  +0.004324] Bluetooth: hci0: Reading Intel version information failed (-22)
> kern  :err   : [  +0.000006] Bluetooth: hci0: Intel Read version failed (-22)
> kern  :info  : [  +0.000040] Bluetooth: hci0: Intel reset sent to retry FW download
> kern  :info  : [  +0.000540] usb 3-10: USB disconnect, device number 91
> ```
>
> Given that Arch FS link mentions issue as being resolved in 5.12.X, is there a chance to backport `linux-firmware` into 5.10.X LTS / Bullseye? AX210 is destined to be one of the most popular modules out there and this bug might cause some unnecessary bad press after the release.
>
> [1] https://bugs.archlinux.org/task/70071

Could you confirm that the combination of the latest firmware and the
5.10 kernel solves this problem?

Best regards,
  Nobuhiro

-- 
Nobuhiro Iwamatsu
   iwamatsu at {nigauri.org / debian.org}
   GPG ID: 40AD1FA6