WCN6855: Request: Support ThinkPad X13s 21BY-S03Y00

[Jeff Johnson]

On 9/6/2023 2:13 AM, Johan Hovold wrote:
> On Wed, Sep 06, 2023 at 11:45:14AM +0300, Kalle Valo wrote:
>> Alex R <alex at ironrobin.net> writes:
>>
>>> Trying the latest board-2.bin from
>>> https://github.com/kvalo/ath11k-firmware/tree/master/WCN6855 and my
>>> wlan0 fails to come up. dmesg: https://pastebin.com/CWHpD0kC
>>>
>>> My other X13s system (21BX-0015US) works fine so I am wondering if my
>>> new X13s (21BY-S03Y00) product type is unsupported.
>>
>> For easier tracking can you please file a bug to bugzilla:
>>
>> https://wireless.wiki.kernel.org/en/users/drivers/ath11k/bugreport
>>
>> Also adding Johan in case he has any ideas or knows what has changed in
>> 21BY-S03Y00.
> 
> I've asked for some more details from Alex over IRC, but it's currently
> not clear why there are problems with this particular machine.
> 
> It appears that firmware download fails, but apparently only sometimes.
> And it fails before loading board-2.bin so that bit of the report looks
> irrelevant:
> 
> 	[    2.195948] ath11k_pci 0006:01:00.0: wcn6855 hw2.1
> 	...
> 	[    2.423948] mhi mhi1: Requested to power ON
> 	[    2.427589] mhi mhi1: Power on setup success
> 	...
> 	[    4.035111] mhi mhi1: Wait for device to enter SBL or Mission mode
> 	...
> 	[   23.518986] mhi mhi1: MHI did not load AMSS, ret:-5
> 
> IIUC, things got worse with 6.5, possible due to random changes in
> timing.
> 
> You need to provide a lot more detail, Alex:
> 
> For example, did this module ever work, and if so with which kernel
> version? How is this module identified when it starts successfully? How
> did things change in 6.5? Have you verified that you're using the same
> fw on both the working and non-working machine (not just board-2.bin,
> which does not seem to be involved here)? You also said something on IRC
> about dual-booting Windows making a difference, etc. etc.
> 
> Johan
> 

Is this using the single MSI interrupt feature? If so, try:
"[PATCH] wifi: ath11k: fix boot failure with one MSI vector"

<https://lore.kernel.org/ath11k/20230601033840.2997-1-quic_bqiang@quicinc.com/T/>