Am Dienstag, dem 02.11.2021 um 11:55 +0100 schrieb Alexander Stein:
Hello,
I was hit by the errata e11171 on imx8mq on our custom board. I found
[1] from over 2 years ago, and the even older patchset [2].
Is there some final conclusion or fix regarding this errata? From
what
I understand the proposed change is apparently not acceptable in
mainline for several reasons. I'm wondering what's the current
status.
As suggested at that time, the only solution (right now) is to
disable
cpuidle on imx8mq?
Best regards,
Alexander
[1] https://lkml.org/lkml/2019/6/10/350
[2] https://lkml.org/lkml/2019/3/27/542
Hi Alexander, hi Abel,
At this point my understanding is basically the same. We carry (a
slight variation of) the above in our tree ever since in oder to have
the cpu-sleep sleep state. Not using it is not acceptable to us :)
Until now there's one internal API change we need to revert (bring
back) in order for this to work. For reference, this is our current
implementation:
https://source.puri.sm/martin.kepplinger/linux-next/-/compare/0b90c3622755e0155632d8cc25edd4eb7f875968...ce4803745a180adc8d87891d4ff8dff1c7bd5464
Abel, can you still say that, in case this solution won't apply anymore
in the future, that you would be available to create an update?
Can you even imagine a possibly acceptable solution for mainline to
this? Nothing is completely set in stone with Linux :)
thank you very much,
martin
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