From 43ae6599fe99a22a98658f0d9d0d40a1f12653f4 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Thu, 8 Jan 2009 12:40:50 +0000
Subject: [PATCH] [ARM] S3C24XX: Add gpio_to_irq implementation
Add to_irq field handlers for the GPIO banks that are configurable
as interripts.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
arch/arm/plat-s3c24xx/gpiolib.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c
index f95c6c9d9f1a..94a341aaa4e4 100644
--- a/arch/arm/plat-s3c24xx/gpiolib.c
+++ b/arch/arm/plat-s3c24xx/gpiolib.c
@@ -59,6 +59,22 @@ static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
return 0;
}
+static int s3c24xx_gpiolib_bankf_toirq(struct gpio_chip *chip, unsigned offset)
+{
+ if (offset < 4)
+ return IRQ_EINT0 + offset;
+
+ if (offset < 8)
+ return IRQ_EINT4 + offset - 4;
+
+ return -EINVAL;
+}
+
+static int s3c24xx_gpiolib_bankg_toirq(struct gpio_chip *chip, unsigned offset)
+{
+ return IRQ_EINT8 + offset;
+}
+
struct s3c_gpio_chip s3c24xx_gpios[] = {
[0] = {
.base = S3C24XX_GPIO_BASE(S3C2410_GPA0),
@@ -114,6 +130,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOF",
.ngpio = 8,
+ .to_irq = s3c24xx_gpiolib_bankf_toirq,
},
},
[6] = {
@@ -123,6 +140,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOG",
.ngpio = 10,
+ .to_irq = s3c24xx_gpiolib_bankg_toirq,
},
},
};