diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2008-01-28 13:01:33 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-01-28 13:20:52 +0000 |
| commit | c27cb681ac1598352569f75cb19850a12b7ef102 (patch) | |
| tree | 16e88e3069e1727726f0bb3ce99659d5aa38bbca /include | |
| parent | 9b8c0088404778a1291191cf140bcfea082f027c (diff) | |
[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 <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-arm/arch-s3c2410/hardware.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h index 20509e4540f6..29592c3ebf22 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); |