ASoC: au1x: convert to platform drivers.

Convert psc-ac97,i2s to platform drivers similar to the davinci ones.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/au1x/psc.h b/sound/soc/au1x/psc.h
index 3f474e8..32d3807 100644
--- a/sound/soc/au1x/psc.h
+++ b/sound/soc/au1x/psc.h
@@ -2,7 +2,7 @@
  * Au12x0/Au1550 PSC ALSA ASoC audio support.
  *
  * (c) 2007-2008 MSC Vertriebsges.m.b.H.,
- *	Manuel Lauss <mano@roarinelk.homelinux.net>
+ *	Manuel Lauss <manuel.lauss@gmail.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
@@ -21,6 +21,10 @@
 extern struct snd_soc_platform au1xpsc_soc_platform;
 extern struct snd_ac97_bus_ops soc_ac97_ops;
 
+/* DBDMA helpers */
+extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev);
+extern void au1xpsc_pcm_destroy(struct platform_device *dmapd);
+
 struct au1xpsc_audio_data {
 	void __iomem *mmio;
 
@@ -30,6 +34,7 @@
 	unsigned long pm[2];
 	struct resource *ioarea;
 	struct mutex lock;
+	struct platform_device *dmapd;
 };
 
 #define PCM_TX	0