How to enable dvfs in omap.

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Hi all,

I am using omap 2.6.37 running overo board. I have enabled the following option in the kernel menunconfig,


CPU Power Management --->
â â [*] CPU Frequency scaling
â â [ ] Enable CPUfreq debugging
â â <*> CPU frequency translation statistics
â â [*] CPU frequency translation statistics details
â â Default CPUFreq governor (ondemand) --->
â â -*- 'performance' governor
â â <M> 'powersave' governor
â â <*> 'userspace' governor for userspace frequency scaling
â â -*- 'ondemand' cpufreq policy governor
â â <*> 'conservative' cpufreq governor
â â [ ] CPU idle PM support


but still I could find the sys and entry in /sys/devices/system/cpu/cpufreq/ directory. Could some one help me to enable DVFS.

root@overo:/sys/devices/system/cpu# ls
cpu0 kernel_max online possible
cpufreq offline perf_events present
root@overo:/sys/devices/system/cpu# cd cpu0/
root@overo:/sys/devices/system/cpu/cpu0# ls
crash_notes
root@overo:/sys/devices/system/cpu/cpu0# cd ..
root@overo:/sys/devices/system/cpu# cd cpufreq/
root@overo:/sys/devices/system/cpu/cpufreq# ls
root@overo:/sys/devices/system/cpu/cpufreq#
--

Regards,
Mohamed Thalib H

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