patch: p4tcc and speedstep cpufreq drivers

[Pawel Worach]

Nate Lawson wrote:
> Attached is a patch that I'd like to get tested.  After applying it,
> rebuild and load the cpufreq.ko module.  Be sure you do _not_ have
> "options CPU_ENABLE_TCC" in your kernel config or the new driver will
> conflict with the old.

Hi Nate,

This is what I get on a TP T41, do the cpufreq results below look right?
Also if I loaded both modules all I got for dev.cpu.0.freq was -1 or 1700 and no 
levels.

CPU: Intel(R) Pentium(R) M processor 1700MHz (1698.56-MHz 686-class CPU)
   Origin = "GenuineIntel"  Id = 0x695  Stepping = 5
Features=0xa7e9f9bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,TM,PBE>

   Only acpi_perf loaded at boot:
+acpi_perf0: <ACPI CPU Frequency Control> on cpu0
+acpi_throttle0: <ACPI CPU Throttling> on cpu0

# sysctl dev.cpu|grep freq
dev.cpu.0.freq: 1700
dev.cpu.0.freq_levels: 1700/24500 1487/21437 1400/19500 1275/18375 1225/17062 
1200/16000 1062/15312 1000/13000 900/12000 875/12187 850/12250 800/9500 750/10000
700/9750 637/9187 600/6000 525/7312 500/6500 450/6000 425/6125 400/4750 375/4875 
350/4875 300/4000 250/3250 212/3062 175/2437 150/2000 125/1625 100/1187 75/750

   Only cpufreq loaded at boot:
+est0: <Enhanced SpeedStep Frequency Control> on cpu0
+p4tcc0: <CPU Frequency Thermal Control> on cpu0
+ichss: enabling SpeedStep support
+ichss0: <SpeedStep ICH> on cpu0

# sysctl dev.cpu|grep freq
dev.cpu.0.freq: 1699

-- 
Pawel