59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
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/*
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* linux/drivers/cpufreq/cpufreq_powersave.c
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*
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* Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/cpufreq.h>
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#include <linux/init.h>
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#include <linux/module.h>
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static void cpufreq_gov_powersave_limits(struct cpufreq_policy *policy)
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{
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pr_debug("setting to %u kHz\n", policy->min);
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__cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
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}
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#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
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static
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#endif
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struct cpufreq_governor cpufreq_gov_powersave = {
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.name = "powersave",
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.limits = cpufreq_gov_powersave_limits,
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.owner = THIS_MODULE,
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};
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static int __init cpufreq_gov_powersave_init(void)
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{
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return cpufreq_register_governor(&cpufreq_gov_powersave);
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}
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static void __exit cpufreq_gov_powersave_exit(void)
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{
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cpufreq_unregister_governor(&cpufreq_gov_powersave);
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}
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MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
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MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
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MODULE_LICENSE("GPL");
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#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
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struct cpufreq_governor *cpufreq_default_governor(void)
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{
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return &cpufreq_gov_powersave;
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}
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fs_initcall(cpufreq_gov_powersave_init);
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#else
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module_init(cpufreq_gov_powersave_init);
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#endif
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module_exit(cpufreq_gov_powersave_exit);
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