Re: [PATCH rtw-next 00/12] wifi: rtw89: Add support for RTL8922AU

[Bitterblue Smith <rtl8821cerfe2@gmail.com>]

On 30/03/2026 05:53, Ping-Ke Shih wrote:
> Bitterblue Smith <rtl8821cerfe2@gmail.com> wrote:
>> Often one or more of these messages appears when the chip powers on:
>>
>> [  +2.167037] rtw89_8922au 1-2:1.0: failed to wait RF DACK
>>
>> [  +2.942749] rtw89_8922au 1-2:1.0: failed to wait RF TSSI
>>
>> [  +0.019006] rtw89_8922au 2-4:1.0: failed to wait RF PRE_NTFY
>>
>> [  +5.985900] rtw89_8922au 2-4:1.0: failed to wait RF DPK
>>
>> It's unclear why.
> 
> RTL8922D done RF calibrations by firmware one by one, so driver should
> wait for previous one done, and trigger next one. However, it'd be
> well to just do waiting at the last to wait for all calibrations. 
> 
> Try to enlarge waiting time in rtw8922a_rfk_channel().
> 

I was convinced I tried that already, but no.

After increasing all delays a bit the warnings are much more rare.

>>
>> It seems to work well anyway.
>>
> 
> If you can yield the highest rate (MCS13), I'd say it is fine.
> 
> Ping-Ke
> 

Testing with RTL8832CU (Brostrend AX8) in AP mode, the RTL8912AU can
reach 1.5 Gbps (MCS10) RX, 1 Gbps TX.

I used the RTL8832CU because my router is not working well with 160
MHz.