linux-kernel - Re: Fwd: Qualcomm NFA725A on T14s AMD Gen3: Bluetooth: hci0: Failed to send headers (or body or access otp area)

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Message-ID: <87fs4bi62i.fsf@kernel.org>
Date:   Tue, 22 Aug 2023 16:01:57 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Bagas Sanjaya <bagasdotme@...il.com>
Cc:     Jeff Johnson <quic_jjohnson@...cinc.com>,
        François Armand <fanf42@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ath11k <ath11k@...ts.infradead.org>,
        Linux Bluetooth <linux-bluetooth@...r.kernel.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>
Subject: Re: Fwd: Qualcomm NFA725A on T14s AMD Gen3: Bluetooth: hci0: Failed
 to send headers (or body or access otp area)

Bagas Sanjaya <bagasdotme@...il.com> writes:

> On 21/08/2023 12:02, Kalle Valo wrote:
>> Bagas Sanjaya <bagasdotme@...il.com> writes:
>> 
>>> Hi,
>>>
>>> I notice a bug report on Bugzilla [1]. Quoting from it:
>>>
>>>> Hello,
>>>>
>>>> (Sorry by advance if it's not the correct place to discuss that, but
>>>> I tried other place like my distro kernel forum
>>>> (https://bbs.archlinux.org/viewtopic.php?id=286929), interactive
>>>> chat, etc and nobody was able to help).
>>>>
>>>> [1] == Short summary ==
>>>>
>>>> I have a lenovo T14S AMD Gen 3 with a *Qualcomm NFA725A* Wi-Fi card
>>>> (which is actually reported by lspci as QCNFA765) and bluetooth
>>>> never worked on it, failing to load the rampatch with "failed to
>>>> send header" or "failed to send body" or "Failed to access otp area
>>>> (-71)".
>>>>
>>>> Other people reports bluetooth as working
>>>> (https://wiki.archlinux.org/title/Lenovo_ThinkPad_T14s_(AMD)_Gen_3)
>>>> and a work friend has a T16 AMD gen1 which seems to have exactly the
>>>> same chipset and work flowlessly. So perhaps it's an hardware issue,
>>>> but I don't know how to qualify it if so.
>>>>
>>>> => How can this be further qualified/debuged/workarounded?
>>>>
>>>> Any help, even RTFM pointing to corresponding manuals would be very
>>>> much appreciated.
>> 
>> This looks like a bluetooth bug so not related to ath11k (which is a
>> Wi-Fi driver).
>> 
>
> Oops, I really can't guess which driver is the culprit in this case unless
> the reporter also attaches lsmod output.

No worries, it's understandable that it's not always clear where the
problem is. And most likely the reporter also has ath11k driver loaded
as the same chip has both Wi-Fi and Bluetooth functionality.

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