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Bug#981005: [Bug 210681] kernel: Bluetooth: hci0: don't support firmware rome 0x31010000

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  Bug#981005: [Bug 210681] kernel: Bluetooth: hci0: don't support firmware rome 0x31010000 Salvatore Bonaccorso <carnil@debian.org> - 2021-02-13 08:20 +0100

#69524 — Bug#981005: [Bug 210681] kernel: Bluetooth: hci0: don't support firmware rome 0x31010000

Hi 

On Tue, Dec 29, 2020 at 10:50:10AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=210681
> 
> Bradley Jarvis (brad@pocketinnovations.com.au) changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |brad@pocketinnovations.com.
>                    |                            |au
> 
> --- Comment #10 from Bradley Jarvis (brad@pocketinnovations.com.au) ---
> Created attachment 294393
>   --> https://bugzilla.kernel.org/attachment.cgi?id=294393&action=edit
> fix hci0: don't support firmware rome error
> 
> Avoid returning error code when bluetooth version match is not made from
> qca_devices_table and version high is set.
> 
> This reverts an error check that was removed to support WCN6855 which does have
> the high version set. The fix is to move the check after the table is scanned
> and no version match is made.
> 
> This fix will still produce the error message for example (for ATK3K 13d3:3402
> IMC Networks Bluetooth USB Host Controller)
> 
> Bluetooth: hci0: don't support firmware rome 0x1020200
> 
> But the bluetooth hardware still works as it used to

Several people have reported that since b40f58b97386 ("Bluetooth:
btusb: Add Qualcomm Bluetooth SoC WCN6855 support") they have issues
with their Bluetooth adapter stopping working. It was reported at
bugzilla[1].

Bradley Jarvis posted/attached a patch which seems to resolve the
issue, Moreno has added an alternative patch.

 [1] https://bugzilla.kernel.org/show_bug.cgi?id=210681

But there is another report at

 [2] https://bugzilla.kernel.org/show_bug.cgi?id=211571

and that last one was applied to bluetooth-next tree according to
https://lore.kernel.org/linux-bluetooth/CA2C8796-11CA-4E6F-A603-AE764516C850@holtmann.org/

Regards,
Salvatore

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