Bug#618832: cpufreq transition latency set incorrectly for PowerMac G5 CPUs

[Richard Godbee <rwg@vt.edu>]

> We already have all the fixes up to 2.6.32.32 (as noted in the
> changelog).
...
> Notice that this sets a finite transition latency for 'Neo2' platforms
> but not for other systems (PowerMac7,2; PowerMac7,3; and RackMac3,1).
> Unfortunately you have one of the latter.

You're absolutely right, of course.  This is what I get for not looking at the patch more closely, then not looking at the source package to see which patches were already being applied.  My apologies for the lame bug report.

For others who have the same problem and stumble across this bug report:

I've built a kernel that sets transition_latency to 20000 (nanoseconds) in the "pm72" code path (line 680 of arch/powerpc/platforms/powermac/cpufreq_64.c).  This is enough to get the ondemand and conservative cpufreq governors working on a dual 2.7 GHz PowerMac G5, though 20000 ns is a complete guess at the transition latency and is most likely very wrong.