arch/arm/mach-s3c64xx/setup-keypad.c

   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 }