[PATCH] cpufreq: powernv: Define methods to parse positive & negative pstates

[Michael Ellerman]

Shilpasri G Bhat <shilpa.bhat at linux.vnet.ibm.com> writes:

> From: "Gautham R. Shenoy" <ego at linux.vnet.ibm.com>
>
> Pstates are 8bit values but on POWER8 they are negative and on POWER9
> they are positive. This patch adds helper routines to differentiate
> the sign to read the correct pstate value.

This sounds like it could be a bad bug, but I can't really tell from the
change log. What is the actual impact of not having this patch?

Should it have a Fixes/Cc-stable tag?

cheers