ARM: SAMSUNG: Add support for interrupt wakeup-sources

Add support for wakeup-mask style interrupts that share a
single mask register for various different interrupts. This
registers a set of interrupt->bit mappings and the register
they belong to.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index d663078..2753fb3 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -285,4 +285,12 @@
 
 	  See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 
+config SAMSUNG_WAKEMASK
+	bool
+	depends on PM
+	help
+	  Compile support for wakeup-mask controls found on the S3C6400
+	  and above. This code allows a set of interrupt to wakeup-mask
+	  mappings. See <plat/wakeup-mask.h>
+
 endif