1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/drivers/cpufreq/cpufreq_powersave.c
4 *
5 * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
6 */
7
8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
10#include <linux/cpufreq.h>
11#include <linux/init.h>
12#include <linux/module.h>
13
14static void cpufreq_gov_powersave_limits(struct cpufreq_policy *policy)
15{
16	pr_debug("setting to %u kHz\n", policy->min);
17	__cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
18}
19
20static struct cpufreq_governor cpufreq_gov_powersave = {
21	.name		= "powersave",
22	.limits		= cpufreq_gov_powersave_limits,
23	.owner		= THIS_MODULE,
24	.flags		= CPUFREQ_GOV_STRICT_TARGET,
25};
26
27MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
28MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
29MODULE_LICENSE("GPL");
30
31#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
32struct cpufreq_governor *cpufreq_default_governor(void)
33{
34	return &cpufreq_gov_powersave;
35}
36#endif
37
38cpufreq_governor_init(cpufreq_gov_powersave);
39cpufreq_governor_exit(cpufreq_gov_powersave);
40