[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 #34 from Mario Limonciello (AMD) (mario.limonciello@xxxxxxx) ---
> If only it doesn't break other systems. That sounds a tad scary to me. So far
> I seem to have been the only affected person (not that many people seem to be
> using HP business laptops with Linux).

The code would basically look like this:
* Capture state of power adapter at suspend callback into a private variable
* If state of power adapter has changed during resume then rewrite all CPU
coefficients.

It should be safe for everyone.  But I need to know that it actually helps your
problem.

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