1// SPDX-License-Identifier: GPL-2.0
 2//
 3// Copyright (c) 2010 Samsung Electronics Co., Ltd.
 4//		http://www.samsung.com/
 5//
 6// GPIO configuration for S3C64XX KeyPad device
 
 
 
 
 
 7
 8#include <linux/gpio.h>
 9#include <plat/gpio-cfg.h>
10#include <plat/keypad.h>
11#include <mach/gpio-samsung.h>
12
13void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
14{
15	/* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */
16	s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), rows, S3C_GPIO_SFN(3));
17
18	/* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
19	s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3));
20}

 1/* linux/arch/arm/mach-s3c64xx/setup-keypad.c
 2 *
 3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 4 *		http://www.samsung.com/
 5 *
 6 * GPIO configuration for S3C64XX KeyPad device
 7 *
 8 * This program is free software; you can redistribute it and/or modify
 9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/gpio.h>
14#include <plat/gpio-cfg.h>
15#include <plat/keypad.h>
16#include <mach/gpio-samsung.h>
17
18void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
19{
20	/* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */
21	s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), rows, S3C_GPIO_SFN(3));
22
23	/* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
24	s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3));
25}