[Bug 218305] Ryzen 7 7840HS gets stuck at 544MHz frequency after resuming after unplugging the power cord during sleep

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https://bugzilla.kernel.org/show_bug.cgi?id=218305

--- Comment #51 from Mario Limonciello (AMD) (mario.limonciello@xxxxxxx) ---
Please let's stick to upstream kernels. It will just confuse the issue with the
distro kernel, ESPECIALLY a kernel that is EOL upstream. We had other fixes
that have landed in amd-pstate that are definitely missing from a 6.5 kernel
that could very well be a similar or same issue.

So please reproduce with 6.9-rc4 or 6.8.7. If you can still reproduce it then
please open a new issue and collect all possible information. If it's indeed
the same issue we can mark as a duplicate at that time.

This issue is looking like a thermal throttling issue where the APU didn't
properly ack a request from the EC while in suspend. I posted a patch that
gives the APU more time to ack it during suspend but it needs to be tested
still in a case that it can be reproduced reliably.

If it doesn't help, I would like to see if extending the time duration in
between cycles helps.

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