[PATCH] S3C64XX: Add gpio_to_irq method for external interrupt group.

[Matt Hsu <matt_hsu@xxxxxxxxxxxx>]

Add to_irq method to convert gpio to irq
for external interrupt group (GPN).

Signed-off-by: Matt Hsu <matt_hsu@xxxxxxxxxxxx>
---
 arch/arm/plat-s3c64xx/gpiolib.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-s3c64xx/gpiolib.c b/arch/arm/plat-s3c64xx/gpiolib.c
index 09bd681..6bb96d8 100644
--- a/arch/arm/plat-s3c64xx/gpiolib.c
+++ b/arch/arm/plat-s3c64xx/gpiolib.c
@@ -18,6 +18,7 @@
 
 #include <mach/map.h>
 #include <mach/gpio.h>
+#include <mach/irqs.h>
 #include <mach/gpio-core.h>
 
 #include <plat/gpio-cfg.h>
@@ -321,6 +322,11 @@ static struct s3c_gpio_cfg gpio_2bit_cfg_eint11 = {
 	.get_pull	= s3c_gpio_getpull_updown,
 };
 
+static int s3c_gpiolib_bankn_toirq(struct gpio_chip *chip, unsigned offset)
+{
+	return S3C_EINT(0) + offset;
+}
+
 static struct s3c_gpio_chip gpio_2bit[] = {
 	{
 		.base	= S3C64XX_GPF_BASE,
@@ -353,6 +359,7 @@ static struct s3c_gpio_chip gpio_2bit[] = {
 			.base	= S3C64XX_GPN(0),
 			.ngpio	= S3C64XX_GPIO_N_NR,
 			.label	= "GPN",
+			.to_irq = s3c_gpiolib_bankn_toirq,
 		},
 	}, {
 		.base	= S3C64XX_GPO_BASE,
-- 
1.6.2


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