QCA6390 power saving issue

[Kalle Valo]

Mark Herbert <mark.herbert42 at gmail.com> writes:

> I remember there was a bug preventing CPU entering to deep powersaving
> states so only PC3 was reached.
>
> The but itself is fixed - but I have just noticed a small remaining
> issue. When I start my PC and there is no WIFI that I can connect so
> ath11  is enabled but not connected to any network - it   prevents
> entering into deep PC states again. When I connect to the WiFi network
> - 
> deep PC states become reachable again. And when I disconnect after
> first connection  and keep my ath11k disconnected (exactly same
> situation as immediately after boot)- there is no issue.
>
> So seems that this powersaving feature is not activated on boot but
> only activates when the card connects to access point.  I am not good
> enough in driver development and design a fix myself. So just writing
> here

Seems very plausible to me. Can you file this to bugzilla, please?
Easier to track that way:

https://wireless.wiki.kernel.org/en/users/drivers/ath11k/bugreport

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches