init android origin source code

1 files changed, 36 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/devfreq/governor_powersave.c b/ANDROID_3.4.5/drivers/devfreq/governor_powersave.c
new file mode 100644
index 00000000..fec0cdbd
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/devfreq/governor_powersave.c
@@ -0,0 +1,36 @@
+/*
+ *  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>
+#include "governor.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 = df->min_freq;
+	return 0;
+}
+
+static int powersave_init(struct devfreq *devfreq)
+{
+	return update_devfreq(devfreq);
+}
+
+const struct devfreq_governor devfreq_powersave = {
+	.name = "powersave",
+	.init = powersave_init,
+	.get_target_freq = devfreq_powersave_func,
+	.no_central_polling = true,
+};