Create platform_device.h to contain all the platform device details.
Convert everyone who uses platform_bus_type to include
linux/platform_device.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 877bb00..d1f9da4 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/wait.h>
 #include <linux/delay.h>
diff --git a/sound/core/init.c b/sound/core/init.c
index 59202de..41e2249 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -28,6 +28,8 @@
 #include <linux/ctype.h>
 #include <linux/pci.h>
 #include <linux/pm.h>
+#include <linux/platform_device.h>
+
 #include <sound/core.h>
 #include <sound/control.h>
 #include <sound/info.h>