From: Ben Dooks <ben-linux@fluff.org>
Date: Thu, 8 Jan 2009 12:40:50 +0000 (+0000)
Subject: [ARM] S3C24XX: Add gpio_to_irq implementation
X-Git-Tag: v2.6.29-rc1~46^2~18
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=43ae6599fe99a22a98658f0d9d0d40a1f12653f4;p=karo-tx-linux.git

[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>
---

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,
 		},
 	},
 };