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-rw-r--r--sound/soc/codecs/rl6231.h18
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diff --git a/sound/soc/codecs/rl6231.h b/sound/soc/codecs/rl6231.h
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+/*
+ * rl6231.h - RL6231 class device shared support
+ *
+ * Copyright 2014 Realtek Semiconductor Corp.
+ *
+ * Author: Oder Chiou <oder_chiou@realtek.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.
+ */
+
+#ifndef __RL6231_H__
+#define __RL6231_H__
+
+int rl6231_calc_dmic_clk(int rate);
+
+#endif /* __RL6231_H__ */