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 samsung_keypad_cfg_gpio(unsigned int rows,unsigned int cols)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 } 26