ASoC: rt286: Add RL6347A class device shared support for RT286

The patch separates the IO function from the rt286. It is prepared to share
for new chips that support the same IO function.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/sound/soc/codecs/rl6347a.h b/sound/soc/codecs/rl6347a.h
new file mode 100644
index 0000000..1cb56e5
--- /dev/null
+++ b/sound/soc/codecs/rl6347a.h
@@ -0,0 +1,32 @@
+/*
+ * rl6347a.h - RL6347A class device shared support
+ *
+ * Copyright 2015 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 __RL6347A_H__
+#define __RL6347A_H__
+
+#define VERB_CMD(V, N, D) ((N << 20) | (V << 8) | D)
+
+#define RL6347A_VENDOR_REGISTERS	0x20
+
+#define RL6347A_COEF_INDEX\
+	VERB_CMD(AC_VERB_SET_COEF_INDEX, RL6347A_VENDOR_REGISTERS, 0)
+#define RL6347A_PROC_COEF\
+	VERB_CMD(AC_VERB_SET_PROC_COEF, RL6347A_VENDOR_REGISTERS, 0)
+
+struct rl6347a_priv {
+	struct reg_default *index_cache;
+	int index_cache_size;
+};
+
+int rl6347a_hw_write(void *context, unsigned int reg, unsigned int value);
+int rl6347a_hw_read(void *context, unsigned int reg, unsigned int *value);
+
+#endif /* __RL6347A_H__ */