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 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 } 21