linux/2.6.23/arch/avr32/mach-at32ap/cpufreq.c:25-33

   25: static int at32_verify_speed(struct cpufreq_policy *policy)
   26: {
   27:         if (policy->cpu != 0)
   28:                 return -EINVAL;
   29: 
   30:         cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
   31:                         policy->cpuinfo.max_freq);
   32:         return 0;
   33: }