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path: root/drivers/devfreq/governor_simpleondemand.c
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Diffstat (limited to 'drivers/devfreq/governor_simpleondemand.c')
-rw-r--r--drivers/devfreq/governor_simpleondemand.c55
1 files changed, 54 insertions, 1 deletions
diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c
index a2e3eae7901..0720ba84ca9 100644
--- a/drivers/devfreq/governor_simpleondemand.c
+++ b/drivers/devfreq/governor_simpleondemand.c
@@ -10,8 +10,10 @@
*/
#include <linux/errno.h>
+#include <linux/module.h>
#include <linux/devfreq.h>
#include <linux/math64.h>
+#include "governor.h"
/* Default constants for DevFreq-Simple-Ondemand (DFSO) */
#define DFSO_UPTHRESHOLD (90)
@@ -88,7 +90,58 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
return 0;
}
-const struct devfreq_governor devfreq_simple_ondemand = {
+static int devfreq_simple_ondemand_handler(struct devfreq *devfreq,
+ unsigned int event, void *data)
+{
+ switch (event) {
+ case DEVFREQ_GOV_START:
+ devfreq_monitor_start(devfreq);
+ break;
+
+ case DEVFREQ_GOV_STOP:
+ devfreq_monitor_stop(devfreq);
+ break;
+
+ case DEVFREQ_GOV_INTERVAL:
+ devfreq_interval_update(devfreq, (unsigned int *)data);
+ break;
+
+ case DEVFREQ_GOV_SUSPEND:
+ devfreq_monitor_suspend(devfreq);
+ break;
+
+ case DEVFREQ_GOV_RESUME:
+ devfreq_monitor_resume(devfreq);
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static struct devfreq_governor devfreq_simple_ondemand = {
.name = "simple_ondemand",
.get_target_freq = devfreq_simple_ondemand_func,
+ .event_handler = devfreq_simple_ondemand_handler,
};
+
+static int __init devfreq_simple_ondemand_init(void)
+{
+ return devfreq_add_governor(&devfreq_simple_ondemand);
+}
+subsys_initcall(devfreq_simple_ondemand_init);
+
+static void __exit devfreq_simple_ondemand_exit(void)
+{
+ int ret;
+
+ ret = devfreq_remove_governor(&devfreq_simple_ondemand);
+ if (ret)
+ pr_err("%s: failed remove governor %d\n", __func__, ret);
+
+ return;
+}
+module_exit(devfreq_simple_ondemand_exit);
+MODULE_LICENSE("GPL");