setup-keypad.c 828 B

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  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. #include <linux/gpio.h>
  13. #include <plat/gpio-cfg.h>
  14. #include <plat/keypad.h>
  15. #include <mach/gpio-samsung.h>
  16. void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
  17. {
  18. /* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */
  19. s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), rows, S3C_GPIO_SFN(3));
  20. /* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
  21. s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3));
  22. }