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authorBen Dooks <ben-linux@fluff.org>2008-01-28 13:01:23 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-01-28 13:20:51 +0000
commitbb6d9b56c1d5c1cbff39b7c337c900e2b3d8387a (patch)
tree7ceb92448f96f99f590f16a22b0e6cb66b9ff744 /include/asm-arm
parent[ARM] 4782/1: S3C24XX: Define FIQ_START for any FIQ users (diff)
downloadlinux-dev-bb6d9b56c1d5c1cbff39b7c337c900e2b3d8387a.tar.xz
linux-dev-bb6d9b56c1d5c1cbff39b7c337c900e2b3d8387a.zip
[ARM] 4783/1: S3C24XX: Add s3c2410_gpio_getpull()
Add the call s3c2410_gpio_getpull() to return the current state of the pin's pull-up. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/arch-s3c2410/hardware.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
index faeaba514ffe..20509e4540f6 100644
--- a/include/asm-arm/arch-s3c2410/hardware.h
+++ b/include/asm-arm/arch-s3c2410/hardware.h
@@ -87,6 +87,18 @@ extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to);
+/* s3c2410_gpio_getpull
+ *
+ * Read the state of the pull-up on a given pin
+ *
+ * return:
+ * < 0 => error code
+ * 0 => enabled
+ * 1 => disabled
+*/
+
+extern int s3c2410_gpio_getpull(unsigned int pin);
+
extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);
extern unsigned int s3c2410_gpio_getpin(unsigned int pin);