[Bug 215187] btintel: AX201: missing firmware ibt-19-16-0.sfi

https://bugzilla.kernel.org/show_bug.cgi?id=215187

--- Comment #1 from Takahide Nojima (nozzy123nozzy@gmail.com) ---

Hello,

 After I did some try and error, I suppose the version of Bluetooth firmware of
AX201 depends on the version of iwlwifi firmware. Then I think this issue is
simply missing the 'intel/ibt-19-16-0.sfi' in
git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git.


 I let the Linux-5.16-rc3 load the latest iwlwifi firmware
'iwlwifi-QuZ-a0-hr-b0-67.ucode'. Then I found an error about missing the
Bluetooth firmware in dmesg, as I reported before.

 Next, I let Linux-5.16-rc3 load the older firmware
'iwlwifi-QuZ-a0-hr-b0-63.ucode', then I found the Linux loaded successfully the
Bluetooth firmware shown as below,
----------here-------------
kernel: Bluetooth hci0: firmware: direct-loading firmware intel/ibt-19-0-4.sfi
kernel: Bluetooth: hci0: Found device firmware: intel/ibt-19-0-4.sfi
----------here-------------
This message was the same as reported when I tested Linux-5.15.5.

 I have reported this to the intel support community. I'll wait for them to put
the intel/ibt-19-16-0.sfi to
git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git.

---
Takahide Nojima

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