ARM: mmp: add pm support for pxa910

add suspend/resume functionality for pxa910

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Raul Xiong <xjian@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
diff --git a/arch/arm/mach-mmp/irq.c b/arch/arm/mach-mmp/irq.c
index 04935f1..fcfe0e3 100644
--- a/arch/arm/mach-mmp/irq.c
+++ b/arch/arm/mach-mmp/irq.c
@@ -26,6 +26,9 @@
 #ifdef CONFIG_CPU_MMP2
 #include <mach/pm-mmp2.h>
 #endif
+#ifdef CONFIG_CPU_PXA910
+#include <mach/pm-pxa910.h>
+#endif
 
 #include "common.h"
 
@@ -213,6 +216,9 @@
 		set_irq_flags(irq, IRQF_VALID);
 	}
 	irq_set_default_host(icu_data[0].domain);
+#ifdef CONFIG_CPU_PXA910
+	icu_irq_chip.irq_set_wake = pxa910_set_wake;
+#endif
 }
 
 /* MMP2 (ARMv7) */