[PATCH -next] mfd: fix stmpe.c build when OF is not enabled

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Fix build errors when CONFIG_OF is not enabled by including
<linux/of.h> (needs to be added in any case).
An alternative fix could be to make the driver depend on OF.

drivers/mfd/stmpe.c:1025:2: error: implicit declaration of function 'of_property_read_u32'
drivers/mfd/stmpe.c:1030:2: error: implicit declaration of function 'for_each_child_of_node'
drivers/mfd/stmpe.c:1030:36: error: expected ';' before '{' token

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Rabin Vincent <rabin.vincent@xxxxxxxxxxxxxx>
Cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
 drivers/mfd/stmpe.c |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20121112.orig/drivers/mfd/stmpe.c
+++ linux-next-20121112/drivers/mfd/stmpe.c
@@ -13,6 +13,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
+#include <linux/of.h>
 #include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/mfd/core.h>
--
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