bf60x: pm: add pint suspend and resume support

save and restore pint sec CTL
save and restore pint registers
add pint suspend and resume when suspend to mem

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
diff --git a/arch/blackfin/mach-bf609/pm.c b/arch/blackfin/mach-bf609/pm.c
index 8d815e0..0211ebd 100644
--- a/arch/blackfin/mach-bf609/pm.c
+++ b/arch/blackfin/mach-bf609/pm.c
@@ -342,16 +342,19 @@
 				GPIO_PE12, error);
 	}
 
-	error = request_irq(irq, test_isr, IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND, "gpiope12", NULL);
+	error = request_irq(irq, test_isr, IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND
+				| IRQF_FORCE_RESUME, "gpiope12", NULL);
 	if(error < 0)
 		printk(KERN_DEBUG "Unable to get irq\n");
 #endif
 
-	error = request_irq(IRQ_CGU_EVT, dpm0_isr, IRQF_NO_SUSPEND, "cgu0 event", NULL);
+	error = request_irq(IRQ_CGU_EVT, dpm0_isr, IRQF_NO_SUSPEND |
+				IRQF_FORCE_RESUME, "cgu0 event", NULL);
 	if(error < 0)
 		printk(KERN_DEBUG "Unable to get irq\n");
 
-	error = request_irq(IRQ_DPM, dpm0_isr, IRQF_NO_SUSPEND, "dpm0 event", NULL);
+	error = request_irq(IRQ_DPM, dpm0_isr, IRQF_NO_SUSPEND |
+				IRQF_FORCE_RESUME, "dpm0 event", NULL);
 	if (error < 0)
 		printk(KERN_DEBUG "Unable to get irq\n");