2 * linux/drivers/cpufreq/cpufreq_powersave.c
4 * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15 #include <linux/cpufreq.h>
16 #include <linux/init.h>
17 #include <linux/module.h>
19 static int cpufreq_governor_powersave(struct cpufreq_policy *policy,
23 case CPUFREQ_GOV_LIMITS:
24 pr_debug("setting to %u kHz\n", policy->min);
25 __cpufreq_driver_target(policy, policy->min,
34 static struct cpufreq_governor cpufreq_gov_powersave = {
36 .governor = cpufreq_governor_powersave,
40 static int __init cpufreq_gov_powersave_init(void)
42 return cpufreq_register_governor(&cpufreq_gov_powersave);
45 static void __exit cpufreq_gov_powersave_exit(void)
47 cpufreq_unregister_governor(&cpufreq_gov_powersave);
50 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
51 MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
52 MODULE_LICENSE("GPL");
54 #ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
55 struct cpufreq_governor *cpufreq_default_governor(void)
57 return &cpufreq_gov_powersave;
60 fs_initcall(cpufreq_gov_powersave_init);
62 module_init(cpufreq_gov_powersave_init);
64 module_exit(cpufreq_gov_powersave_exit);