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 void cpufreq_gov_powersave_limits(struct cpufreq_policy *policy)
21 pr_debug("setting to %u kHz\n", policy->min);
22 __cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
25 static struct cpufreq_governor cpufreq_gov_powersave = {
27 .limits = cpufreq_gov_powersave_limits,
31 static int __init cpufreq_gov_powersave_init(void)
33 return cpufreq_register_governor(&cpufreq_gov_powersave);
36 static void __exit cpufreq_gov_powersave_exit(void)
38 cpufreq_unregister_governor(&cpufreq_gov_powersave);
41 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
42 MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
43 MODULE_LICENSE("GPL");
45 #ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
46 struct cpufreq_governor *cpufreq_default_governor(void)
48 return &cpufreq_gov_powersave;
51 fs_initcall(cpufreq_gov_powersave_init);
53 module_init(cpufreq_gov_powersave_init);
55 module_exit(cpufreq_gov_powersave_exit);