From bb6d9b56c1d5c1cbff39b7c337c900e2b3d8387a Mon Sep 17 00:00:00 2001 From: Ben Dooks 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 Signed-off-by: Russell King --- include/asm-arm/arch-s3c2410/hardware.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') 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); -- cgit v1.2.3