[Bug 215801] Rmmod'ing amd-pstate doesn't restore acpi-cpufreq

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=215801

--- Comment #5 from Perry Yuan(AMD) (Perry.Yuan@amd.com) ---
(In reply to Artem S. Tashkinov from comment #4)
> (In reply to Perry Yuan(AMD) from comment #3)
> > (In reply to Artem S. Tashkinov from comment #2)
> > > This is still relevant as of Linux 6.6.
> > > 
> > > Would be great if removing amd-pstate enabled acpi-cpufreq.
> > 
> > Normally the system hardware needs to reinitialize CPPC and low-level power
> > management firmware when CPPC driver loading, so it better to change grub
> > parameters and reboot again.
> > dynamically removing amd-pstate and load acpi_cpufreq probably cause some
> > potential issues. 
> > 
> > Perry.
> 
> Could you add this as a note to the amd pstate driver documentation?
> 
> Documentation/admin-guide/pm/amd-pstate.rst
> 
> Thank you!


Sure, we can add this to amd-pstate.rst with a new update. 

Perry.

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