arch/arm/mach-s5pv210/setup-keypad.c

   1 /*
   2  * linux/arch/arm/mach-s5pv210/setup-keypad.c
   3  *
   4  * Copyright (C) 2010 Samsung Electronics Co.Ltd
   5  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
   6  *
   7  *  This program is free software; you can redistribute  it and/or modify it
   8  *  under  the terms of  the GNU General  Public License as published by the
   9  *  Free Software Foundation;  either version 2 of the  License, or (at your
  10  *  option) any later version.
  11  *
  12  */
  13
  14 #include <linux/gpio.h>
  15 #include <plat/gpio-cfg.h>
  16
  17 void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
  18 {
  19         /* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */
  20         s3c_gpio_cfgrange_nopull(S5PV210_GPH3(0), rows, S3C_GPIO_SFN(3));
  21
  22         /* Set all the necessary GPH2 pins to special-function 3: KP_COL[x] */
  23         s3c_gpio_cfgrange_nopull(S5PV210_GPH2(0), cols, S3C_GPIO_SFN(3));
  24 }