ASoC: add generic simple-card support

Current ASoC requires card.c file to each platforms in order to
specifies its CPU and Codecs pair.
But the differences between these were only value/strings of setting.
In order to reduce duplicate driver, this patch adds generic/simple-card.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/simple_card.h

@@ -0,0 +1,38 @@
+/*
+ * ASoC simple sound card support
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.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 __SIMPLE_CARD_H
+#define __SIMPLE_CARD_H
+
+#include <sound/soc.h>
+
+struct asoc_simple_dai_init_info {
+	unsigned int fmt;
+	unsigned int cpu_daifmt;
+	unsigned int codec_daifmt;
+	unsigned int sysclk;
+};
+
+struct asoc_simple_card_info {
+	const char *name;
+	const char *card;
+	const char *cpu_dai;
+	const char *codec;
+	const char *platform;
+	const char *codec_dai;
+	struct asoc_simple_dai_init_info *init; /* for snd_link.init */
+
+	/* used in simple-card.c */
+	struct snd_soc_dai_link snd_link;
+	struct snd_soc_card snd_card;
+};
+
+#endif /* __SIMPLE_CARD_H */