From bb6d9b56c1d5c1cbff39b7c337c900e2b3d8387a Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 28 Jan 2008 13:01:23 +0100
Subject: [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>
---
 include/asm-arm/arch-s3c2410/hardware.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'include/asm-arm')

diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
index faeaba514ff..20509e4540f 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);
-- 
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