Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / devfreq / governor.h

diff --git a/kernel/drivers/devfreq/governor.h b/kernel/drivers/devfreq/governor.h
new file mode 100644 (file)
index 0000000..fad7d63
--- /dev/null
+++ b/kernel/drivers/devfreq/governor.h
@@ -0,0 +1,41 @@
+/*
+ * governor.h - internal header for devfreq governors.
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ *     MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This header is for devfreq governors in drivers/devfreq/
+ */
+
+#ifndef _GOVERNOR_H
+#define _GOVERNOR_H
+
+#include <linux/devfreq.h>
+
+#define to_devfreq(DEV)        container_of((DEV), struct devfreq, dev)
+
+/* Devfreq events */
+#define DEVFREQ_GOV_START                      0x1
+#define DEVFREQ_GOV_STOP                       0x2
+#define DEVFREQ_GOV_INTERVAL                   0x3
+#define DEVFREQ_GOV_SUSPEND                    0x4
+#define DEVFREQ_GOV_RESUME                     0x5
+
+/* Caution: devfreq->lock must be locked before calling update_devfreq */
+extern int update_devfreq(struct devfreq *devfreq);
+
+extern void devfreq_monitor_start(struct devfreq *devfreq);
+extern void devfreq_monitor_stop(struct devfreq *devfreq);
+extern void devfreq_monitor_suspend(struct devfreq *devfreq);
+extern void devfreq_monitor_resume(struct devfreq *devfreq);
+extern void devfreq_interval_update(struct devfreq *devfreq,
+                                       unsigned int *delay);
+
+extern int devfreq_add_governor(struct devfreq_governor *governor);
+extern int devfreq_remove_governor(struct devfreq_governor *governor);
+
+#endif /* _GOVERNOR_H */