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authorBen Dooks <ben-linux@fluff.org>2008-01-28 13:01:33 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-01-28 13:20:52 +0000
commitc27cb681ac1598352569f75cb19850a12b7ef102 (patch)
tree16e88e3069e1727726f0bb3ce99659d5aa38bbca /include/asm-arm/arch-s3c2410/hardware.h
parent[ARM] 4792/1: S3C24XX: Remove warnings from debug-macro.S (diff)
downloadlinux-dev-c27cb681ac1598352569f75cb19850a12b7ef102.tar.xz
linux-dev-c27cb681ac1598352569f75cb19850a12b7ef102.zip
[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 '')
-rw-r--r--include/asm-arm/arch-s3c2410/hardware.h11
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);