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path: root/drivers/devfreq/governor_powersave.c
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Diffstat (limited to 'drivers/devfreq/governor_powersave.c')
-rw-r--r--drivers/devfreq/governor_powersave.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/devfreq/governor_powersave.c b/drivers/devfreq/governor_powersave.c
new file mode 100644
index 00000000000..2483a85a266
--- /dev/null
+++ b/drivers/devfreq/governor_powersave.c
@@ -0,0 +1,29 @@
+/*
+ * linux/drivers/devfreq/governor_powersave.c
+ *
+ * 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.
+ */
+
+#include <linux/devfreq.h>
+
+static int devfreq_powersave_func(struct devfreq *df,
+ unsigned long *freq)
+{
+ /*
+ * target callback should be able to get ceiling value as
+ * said in devfreq.h
+ */
+ *freq = 0;
+ return 0;
+}
+
+const struct devfreq_governor devfreq_powersave = {
+ .name = "powersave",
+ .get_target_freq = devfreq_powersave_func,
+ .no_central_polling = true,
+};