This patch series adds support for the touchscreen controllers provided
by Wolfson Microelectronics WM97xx series chips in both polled and
streaming modes.

We're using the wm9712 codec with the sound/soc/pxa code configured in and
came across this build error:

In file included from include/linux/wm97xx.h:9,
                 from drivers/input/touchscreen/wm97xx-core.c:50:
include/sound/core.h:281: error: `SNDRV_CARDS' undeclared here (not in a
function)

I had to apply the following one-line patch to the header:

Index: linux-2.6.24.labquest/include/linux/wm97xx.h
===================================================================

--- linux-2.6.24.labquest.orig/include/linux/wm97xx.h	2008-02-12

20:17:11.000000000 -0800

+++ linux-2.6.24.labquest/include/linux/wm97xx.h	2008-02-12

20:17:39.000000000 -0800

@@ -6,6 +6,7 @@
 #ifndef _LINUX_WM97XX_H
 #define _LINUX_WM97XX_H

+#include <sound/driver.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>