[PATCH 0/2] ath10k: WCN3990 firmware workarounds for WLAN.HL.3.2

[Jeff Johnson]

On 3/25/2026 1:41 AM, Loic Poulain wrote:
> Hi Jeff, Malte.
> 
> On Sun, Mar 22, 2026 at 2:49 PM Malte Schababerle
> <m.schababerle at gmail.com> wrote:
>>
>> Two firmware workarounds for WCN3990 (QCA6174 integrated variant on
>> Qualcomm SM8150/SDM845 platforms) running WLAN.HL.3.2 firmware.
>>
>> Both issues are firmware bugs where WCN3990 advertises capabilities it
>> cannot handle correctly. Tested on OnePlus 7T (SM8150) with
>> WLAN.HL.3.2.0.c2-00006 and WLAN.HL.3.2.0.c2-00011.
>>
>> Patch 1 fixes a deterministic firmware crash caused by the quiet mode
>> WMI command. The existing guard from commit 53884577fbcef relied on
>> THERM_THROT not being advertised, but HL3.2 now advertises it despite
>> still crashing on the command.
>>
>> Patch 2 works around a bug where active scan does not tune the radio
>> on 5GHz non-DFS channels, making 5GHz networks invisible. Forcing
>> passive scan mode restores 5GHz discovery.
>>
>> Malte Schababerle (2):
>>   ath10k: skip quiet mode for WCN3990 to prevent firmware crash
>>   ath10k: force passive scan on 5GHz for WCN3990
> 
> Jeff, is this something that could be addressed or worked around
> through the firmware or NV configuration? Applying this workaround to
> all WCN3990 devices feels a bit excessive if the issue is limited to
> specific variants.

+Baochen, can you look at this with the firmware team?