[ARM] 3783/1: S3C2412: fix IRQ_EINT0 to IRQ_EINT3 handling

Patch from Ben Dooks

The IRQ_EINT0 through IRQ_EINT3 handling has changed
on the S3C2412 from the previous SoCs in the range,
and thus we need to add code to handle this.

The changes come about due to these IRQs being
displayed in two different registers, and needing to
be acked and masked in both.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2410/irq.h b/arch/arm/mach-s3c2410/irq.h
index 4abf0ca14e00..f7cc4c983de5 100644
--- a/arch/arm/mach-s3c2410/irq.h
+++ b/arch/arm/mach-s3c2410/irq.h
@@ -97,3 +97,8 @@ s3c_irqsub_ack(unsigned int irqno, unsigned int parentmask, unsigned int group)
                 __raw_writel(parentmask, S3C2410_INTPND);
         }
 }
+
+/* exported for use in arch/arm/mach-s3c2410 */
+
+extern int s3c_irq_wake(unsigned int irqno, unsigned int state);
+extern int s3c_irqext_type(unsigned int irq, unsigned int type);