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Commit 30d221db authored by Alessandro Guido's avatar Alessandro Guido Committed by Dave Jones
Browse files

[CPUFREQ] allow use of the powersave governor as the default one 



Allow use of the powersave cpufreq governor as the default one for EMBEDDED
configs.

Signed-off-by: default avatarAlessandro Guido <alessandro.guido@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent 605400a8

drivers/cpufreq/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -69,6 +69,15 @@ config CPU_FREQ_DEFAULT_GOV_PERFORMANCE 
	  the frequency statically to the highest frequency supported by

	  the CPU.



config CPU_FREQ_DEFAULT_GOV_POWERSAVE

	bool "powersave"

	depends on EMBEDDED

	select CPU_FREQ_GOV_POWERSAVE

	help

	  Use the CPUFreq governor 'powersave' as default. This sets

	  the frequency statically to the lowest frequency supported by

	  the CPU.



config CPU_FREQ_DEFAULT_GOV_USERSPACE

	bool "userspace"

	select CPU_FREQ_GOV_USERSPACE

drivers/cpufreq/cpufreq_powersave.c

+6 −2
Original line number Diff line number Diff line
@@ -35,12 +35,12 @@ static int cpufreq_governor_powersave(struct cpufreq_policy *policy, 
	return 0;

}



static struct cpufreq_governor cpufreq_gov_powersave = {

struct cpufreq_governor cpufreq_gov_powersave = {

	.name		= "powersave",

	.governor	= cpufreq_governor_powersave,

	.owner		= THIS_MODULE,

};



EXPORT_SYMBOL(cpufreq_gov_powersave);



static int __init cpufreq_gov_powersave_init(void)

{
@@ -58,5 +58,9 @@ MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>"); 
MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");

MODULE_LICENSE("GPL");



#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE

fs_initcall(cpufreq_gov_powersave_init);

#else

module_init(cpufreq_gov_powersave_init);

#endif

module_exit(cpufreq_gov_powersave_exit);

include/linux/cpufreq.h

+3 −0
Original line number Diff line number Diff line
@@ -308,6 +308,9 @@ extern struct cpufreq_governor cpufreq_gov_performance; 
#endif

#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE

#define CPUFREQ_DEFAULT_GOVERNOR	(&cpufreq_gov_performance)

#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE)

extern struct cpufreq_governor cpufreq_gov_powersave;

#define CPUFREQ_DEFAULT_GOVERNOR	(&cpufreq_gov_powersave)

#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE)

extern struct cpufreq_governor cpufreq_gov_userspace;

#define CPUFREQ_DEFAULT_GOVERNOR	(&cpufreq_gov_userspace)