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kernel/linux-imx6_3.14.28/arch/arm/mach-s5pv210/setup-keypad.c 828 Bytes
6b13f685e   김민수   BSP 최초 추가
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  /*
   * linux/arch/arm/mach-s5pv210/setup-keypad.c
   *
   * Copyright (C) 2010 Samsung Electronics Co.Ltd
   * Author: Joonyoung Shim <jy0922.shim@samsung.com>
   *
   *  This program is free software; you can redistribute  it and/or modify it
   *  under  the terms of  the GNU General  Public License as published by the
   *  Free Software Foundation;  either version 2 of the  License, or (at your
   *  option) any later version.
   *
   */
  
  #include <linux/gpio.h>
  #include <plat/gpio-cfg.h>
  
  void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
  {
  	/* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */
  	s3c_gpio_cfgrange_nopull(S5PV210_GPH3(0), rows, S3C_GPIO_SFN(3));
  
  	/* Set all the necessary GPH2 pins to special-function 3: KP_COL[x] */
  	s3c_gpio_cfgrange_nopull(S5PV210_GPH2(0), cols, S3C_GPIO_SFN(3));
  }