| Naveen Krishna Ch | 290d098 | 2010-06-22 07:39:18 +0900 | [diff] [blame] | 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> |
| Mark Brown | 821c3a3 | 2010-10-13 18:23:39 +0900 | [diff] [blame] | 15 | #include <plat/keypad.h> |
| Naveen Krishna Ch | 290d098 | 2010-06-22 07:39:18 +0900 | [diff] [blame] | 16 | |
| 17 | void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols) |
| 18 | { |
| Naveen Krishna Ch | 290d098 | 2010-06-22 07:39:18 +0900 | [diff] [blame] | 19 | /* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */ |
| Kukjin Kim | 3e9b726 | 2010-10-01 20:20:37 +0900 | [diff] [blame] | 20 | s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), 8 + rows, S3C_GPIO_SFN(3)); |
| Naveen Krishna Ch | 290d098 | 2010-06-22 07:39:18 +0900 | [diff] [blame] | 21 | |
| 22 | /* Set all the necessary GPL pins to special-function 3: KP_COL[x] */ |
| Kukjin Kim | 3e9b726 | 2010-10-01 20:20:37 +0900 | [diff] [blame] | 23 | s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3)); |
| Naveen Krishna Ch | 290d098 | 2010-06-22 07:39:18 +0900 | [diff] [blame] | 24 | } |