ASoC: Restore MAX98088 CODEC driver

This reverts commit f6765502f8daae3d237a394889276c8987f3e299 and adds
the missing include file.

Signed-off-by: Peter Hsiang <Peter.Hsiang@maxim-ic.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/sound/max98088.h b/include/sound/max98088.h
new file mode 100644
index 0000000..c3ba823
--- /dev/null
+++ b/include/sound/max98088.h
@@ -0,0 +1,50 @@
+/*
+ * Platform data for MAX98088
+ *
+ * Copyright 2010 Maxim Integrated Products
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#ifndef __SOUND_MAX98088_PDATA_H__
+#define __SOUND_MAX98088_PDATA_H__
+
+/* Equalizer filter response configuration */
+struct max98088_eq_cfg {
+       const char *name;
+       unsigned int rate;
+       u16 band1[5];
+       u16 band2[5];
+       u16 band3[5];
+       u16 band4[5];
+       u16 band5[5];
+};
+
+/* codec platform data */
+struct max98088_pdata {
+
+       /* Equalizers for DAI1 and DAI2 */
+       struct max98088_eq_cfg *eq_cfg;
+       unsigned int eq_cfgcnt;
+
+       /* Receiver output can be configured as power amplifier or LINE out */
+       /* Set receiver_mode to:
+        * 0 = amplifier output, or
+        * 1 = LINE level output
+        */
+       unsigned int receiver_mode:1;
+
+       /* Analog/digital microphone configuration:
+        * 0 = analog microphone input (normal setting)
+        * 1 = digital microphone input
+        */
+       unsigned int digmic_left_mode:1;
+       unsigned int digmic_right_mode:1;
+
+};
+
+#endif