Right;

> powersave is nothing but 802.11 protocol implementation to put the
> station into network sleep when it is idle and wake it up whenever it is
> active. IIRC it is not related to ASPM. So yes powersave would work event
> without ASPM.
>
> Since the issue is happending only when ASPM is enabled, please test the
> patch with ASPM.

Just to be clear - the powersave support when loading ath9k also puts
the MAC/PHY to sleep and wakes it up as appropriate.

You're seeing 0xdeadc0de which the internal AHB glue reports if
there's a transaction timeout (ie, the MAC/PHY is asleep or powered
down when you went to access it.)

ASPM has to do with the PHYs at both ends being awake (or not.) I
think you'd either trigger some pcie error or read 0xffffffff if
things were screwed up there.

So I'd try with ASPM enabled/disabled as well as ps_enable on or off.
It could be an interplay between the two as well.


-a
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