From c27cb681ac1598352569f75cb19850a12b7ef102 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 28 Jan 2008 13:01:33 +0100 Subject: [ARM] 4793/1: S3C24XX: Add IRQ->GPIO pin mapping function Add the reverse of s3c2410_gpio_getirq to convert a IRQ number into a GPIO pin number. Signed-off-by: Ben Dooks Signed-off-by: Russell King --- include/asm-arm/arch-s3c2410/hardware.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/asm-arm/arch-s3c2410') diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h index 20509e4540f..29592c3ebf2 100644 --- a/include/asm-arm/arch-s3c2410/hardware.h +++ b/include/asm-arm/arch-s3c2410/hardware.h @@ -50,6 +50,17 @@ extern unsigned int s3c2410_gpio_getcfg(unsigned int pin); extern int s3c2410_gpio_getirq(unsigned int pin); +/* s3c2410_gpio_irq2pin + * + * turn the given irq number into the corresponding GPIO number + * + * returns: + * < 0 = no pin + * >=0 = gpio pin number +*/ + +extern int s3c2410_gpio_irq2pin(unsigned int irq); + #ifdef CONFIG_CPU_S3C2400 extern int s3c2400_gpio_getirq(unsigned int pin); -- cgit v1.2.3-70-g09d2