(adding the new mhi list, yay)

Hi Loic,

Loic Poulain [off-list ref] writes:

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Loic Poulain [off-list ref] writes:

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On Thu, 16 Sept 2021 at 10:00, Kalle Valo [off-list ref] wrote:

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At the moment I'm running my tests with commit 020d3b26c07a reverted and
everything works without problems. Is there a simple way to fix this? Or
maybe we should just revert the commit? Commit log and kernel logs from
a failing case below.

Do you have log of success case?

A log from a successful case in the end of email, using v5.15-rc1 plus
revert of commit 020d3b26c07abe27.

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To me, the device loses power, that is why MHI resuming is failing.
Normally the device should be properly recovered/reinitialized. Before
that patch the power loss was simply not detected (or handled at
higher stack level).

Currently in ath11k we always keep the firmware running when in suspend,
this is a workaround due to problems between mac80211 and MHI stack.
IIRC the problem was something related MHI creating struct device during
resume or something like that.

Could you give a try with the attached patch? It should solve your
issue without breaking modem support.

Sorry for taking so long, but I now tested your patch on top of
v5.15-rc3 and, as expected, everything works as before with QCA6390 on
NUC x86 testbox.

Tested-by: Kalle Valo <redacted>

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