mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-11 21:14:07 +08:00
2211f28cda
This patch is to support keypad device to the SMDKC100 board. Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
35 lines
1022 B
C
35 lines
1022 B
C
/* linux/arch/arm/mach-s5pc100/setup-keypad.c
|
|
*
|
|
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com/
|
|
*
|
|
* GPIO configuration for S5PC100 KeyPad device
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/gpio.h>
|
|
#include <plat/gpio-cfg.h>
|
|
|
|
void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
|
|
{
|
|
unsigned int gpio;
|
|
unsigned int end;
|
|
|
|
/* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */
|
|
end = S5PC100_GPH3(rows);
|
|
for (gpio = S5PC100_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 = S5PC100_GPH2(cols);
|
|
for (gpio = S5PC100_GPH2(0); gpio < end; gpio++) {
|
|
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
|
|
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
|
|
}
|
|
}
|