OMAP4: DMIC: Add DMIC codec platform device

Add platform device for DMIC codec interfaces available
in OMAP4.

Change-Id: I62d641f4dd3c898d10b9b50bb33c070837b24eaf
Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index cbc471c..4ea6396 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -294,6 +294,21 @@
 
 #if defined CONFIG_ARCH_OMAP4
 
+static struct platform_device codec_dmic0 = {
+	.name	= "dmic-codec",
+	.id	= 0,
+};
+
+static struct platform_device codec_dmic1 = {
+	.name	= "dmic-codec",
+	.id	= 1,
+};
+
+static struct platform_device codec_dmic2 = {
+	.name	= "dmic-codec",
+	.id	= 2,
+};
+
 static struct platform_device omap_abe_dai = {
 	.name	= "omap-abe-dai",
 	.id	= -1,
@@ -301,6 +316,9 @@
 
 static inline void omap_init_abe(void)
 {
+	platform_device_register(&codec_dmic0);
+	platform_device_register(&codec_dmic1);
+	platform_device_register(&codec_dmic2);
 	platform_device_register(&omap_abe_dai);
 }
 #else