Joonyoung Shim | e7d0628 | 2010-06-21 16:28:28 +0900 | [diff] [blame] | 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 | unsigned int gpio, end; |
| 20 | |
| 21 | /* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */ |
| 22 | end = S5PV210_GPH3(rows); |
| 23 | for (gpio = S5PV210_GPH3(0); gpio < end; gpio++) { |
| 24 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); |
| 25 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); |
| 26 | } |
| 27 | |
| 28 | /* Set all the necessary GPH2 pins to special-function 3: KP_COL[x] */ |
| 29 | end = S5PV210_GPH2(cols); |
| 30 | for (gpio = S5PV210_GPH2(0); gpio < end; gpio++) { |
| 31 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); |
| 32 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); |
| 33 | } |
| 34 | } |