shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 12:17:12 +09:00
Code Issues Packages Projects Releases Wiki Activity

rk29: cpufreq: fix cpu freq when reboot/shutdown

Browse Source
This commit is contained in:
黄涛
2011-08-18 18:40:54 +08:00
parent e24fe4d32a
commit a439265b2e
1 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
arch/arm/mach-rk29/cpufreq.c
View File

@@ -22,6 +22,7 @@
#include <linux/cpufreq.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/reboot.h>
#include <linux/regulator/consumer.h>
#include <linux/suspend.h>
#include <linux/tick.h>
@@ -510,6 +511,23 @@ static struct notifier_block rk29_cpufreq_pm_notifier = {
.notifier_call = rk29_cpufreq_pm_notifier_event,
};
static int rk29_cpufreq_reboot_notifier_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct cpufreq_policy *policy = cpufreq_cpu_get(0);
if (policy) {
cpufreq_driver_target(policy, limit_avg_freq, DISABLE_FURTHER_CPUFREQ | CPUFREQ_RELATION_L);
cpufreq_cpu_put(policy);
}
return NOTIFY_OK;
}
static struct notifier_block rk29_cpufreq_reboot_notifier = {
.notifier_call = rk29_cpufreq_reboot_notifier_event,
};
static int rk29_cpufreq_fb_notifier_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
@@ -547,6 +565,7 @@ static struct notifier_block rk29_cpufreq_fb_notifier = {
static int __init rk29_cpufreq_register(void)
{
register_pm_notifier(&rk29_cpufreq_pm_notifier);
register_reboot_notifier(&rk29_cpufreq_reboot_notifier);
rk29fb_register_notifier(&rk29_cpufreq_fb_notifier);
return cpufreq_register_driver(&rk29_cpufreq_driver);