drm/vc4: txp: Protect device resources
[platform/kernel/linux-starfive.git] / drivers / cpufreq / cpufreq_powersave.c
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
14 static 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
20 static 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
27 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
28 MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
29 MODULE_LICENSE("GPL");
30
31 #ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
32 struct cpufreq_governor *cpufreq_default_governor(void)
33 {
34         return &cpufreq_gov_powersave;
35 }
36 #endif
37
38 cpufreq_governor_init(cpufreq_gov_powersave);
39 cpufreq_governor_exit(cpufreq_gov_powersave);