linux/arch/arm/mach-s3c64xx/setup-keypad.c
Mark Brown 821c3a35cb ARM: S3C64XX: Ensure samsung_keypad_cfg_gpio() is prototyped
Since it's exported we should make sure we're using the prototype
others see.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-10-25 16:04:27 +09:00

24 lines
801 B
C

/* linux/arch/arm/mach-s3c64xx/setup-keypad.c
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* GPIO configuration for S3C64XX KeyPad device
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
#include <plat/keypad.h>
void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
{
/* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */
s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), 8 + rows, S3C_GPIO_SFN(3));
/* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3));
}