ASoC: add rt5665 codec driver

This is the initial codec driver for rt5665.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/sound/rt5665.h b/include/sound/rt5665.h
new file mode 100755
index 0000000..963229e
--- /dev/null
+++ b/include/sound/rt5665.h
@@ -0,0 +1,47 @@
+/*
+ * linux/sound/rt5665.h -- Platform data for RT5665
+ *
+ * Copyright 2016 Realtek Microelectronics
+ *
+ * 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 __LINUX_SND_RT5665_H
+#define __LINUX_SND_RT5665_H
+
+enum rt5665_dmic1_data_pin {
+	RT5665_DMIC1_NULL,
+	RT5665_DMIC1_DATA_GPIO4,
+	RT5665_DMIC1_DATA_IN2N,
+};
+
+enum rt5665_dmic2_data_pin {
+	RT5665_DMIC2_NULL,
+	RT5665_DMIC2_DATA_GPIO5,
+	RT5665_DMIC2_DATA_IN2P,
+};
+
+enum rt5665_jd_src {
+	RT5665_JD_NULL,
+	RT5665_JD1,
+};
+
+struct rt5665_platform_data {
+	bool in1_diff;
+	bool in2_diff;
+	bool in3_diff;
+	bool in4_diff;
+
+	int ldo1_en; /* GPIO for LDO1_EN */
+
+	enum rt5665_dmic1_data_pin dmic1_data_pin;
+	enum rt5665_dmic2_data_pin dmic2_data_pin;
+	enum rt5665_jd_src jd_src;
+
+	unsigned int sar_hs_type;
+};
+
+#endif
+