blob: 37b2790aafc30fa566c1a4789021b45df01620dc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/*
* 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)
{
unsigned int gpio, end;
/* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */
end = S5PV210_GPH3(rows);
for (gpio = S5PV210_GPH3(0); gpio < end; gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
/* Set all the necessary GPH2 pins to special-function 3: KP_COL[x] */
end = S5PV210_GPH2(cols);
for (gpio = S5PV210_GPH2(0); gpio < end; gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
}
|
