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 "gpio-cfg.h"
10#include "keypad.h"
11#include "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(pin: S3C64XX_GPK(8), size: 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(pin: S3C64XX_GPL(0), size: cols, S3C_GPIO_SFN(3));
20}
21

source code of linux/arch/arm/mach-s3c/setup-keypad-s3c64xx.c