--- zzzz-none-000/linux-2.6.19.2/arch/arm/mach-s3c2410/s3c2410-gpio.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5504/linux-2.6.19.2/arch/arm/mach-s3c2410/s3c2410-gpio.c	2007-01-11 07:38:19.000000000 +0000
@@ -69,3 +69,22 @@
 }
 
 EXPORT_SYMBOL(s3c2410_gpio_irqfilter);
+
+int s3c2410_gpio_getirq(unsigned int pin)
+{
+	if (pin < S3C2410_GPF0 || pin > S3C2410_GPG15)
+		return -1;	/* not valid interrupts */
+
+	if (pin < S3C2410_GPG0 && pin > S3C2410_GPF7)
+		return -1;	/* not valid pin */
+
+	if (pin < S3C2410_GPF4)
+		return (pin - S3C2410_GPF0) + IRQ_EINT0;
+
+	if (pin < S3C2410_GPG0)
+		return (pin - S3C2410_GPF4) + IRQ_EINT4;
+
+	return (pin - S3C2410_GPG0) + IRQ_EINT8;
+}
+
+EXPORT_SYMBOL(s3c2410_gpio_getirq);