cpufreq_set_policy
ret = cpufreq_set_policy(policy, gov, pol);
cpufreq_set_policy(policy, policy->governor, policy->policy);
ret = cpufreq_set_policy(policy, NULL, new_pol);
ret = cpufreq_set_policy(policy, new_gov,
static int cpufreq_set_policy(struct cpufreq_policy *policy,
int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy);
ret = cpufreq_set_policy(cpu, new_pol);