patch: p4tcc and speedstep cpufreq drivers

[Maxim Konovalov]

Hi Nate,

Sony PCG-505BX [1].  With your patch I've got several new freq_levels:

dev.cpu.0.freq_levels: 1990/-1 1741/-1 1492/-1 1305/-1 1243/-1 1195/-1
1119/-1 1088/-1 1045/-1 995/-1 932/-1 896/-1 870/-1 776/-1 746/-1
652/-1 597/-1 559/-1 522/-1 497/-1 448/-1 373/-1 336/-1 298/-1 248/-1
217/-1 186/-1 149/-1 124/-1 93/-1 62/-1 37/-1

starting from 373 IIRC.

When I try to change dev.cpu.0.freq several of these values produce
"invalid argument" e.g. 1305, 1119, 1088.  The system is starting
working very slow at 448 and practically hang at 298.

[1] http://maxim.int.ru/stuff/SONNIE.dmesg
    http://maxim.int.ru/stuff/SONNIE.sysctl-a

-- 
Maxim Konovalov