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
13 void 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 }