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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* arch/arm/mach-ns9xxx/gpiolib-ns9360.c
*
* Copyright (C) 2006-2008 by Digi International Inc.
* All rights reserved.
*
* 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/bug.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/gpio.h>
static int ns9360_gpio_chip_get(struct gpio_chip *chip, unsigned offset)
{
return gpio_get_value_ns9360(chip->base + offset);
}
static void ns9360_gpio_chip_set(struct gpio_chip *chip,
unsigned offset, int value)
{
gpio_set_value_ns9360_unlocked(chip->base + offset, value);
}
static int ns9360_gpio_chip_dir_input(struct gpio_chip *chip, unsigned offset)
{
return gpio_direction_irqinput_ns9360_unlocked(chip->base + offset);
}
static int ns9360_gpio_chip_dir_output(struct gpio_chip *chip,
unsigned offset, int value)
{
return gpio_direction_output_ns9360_unlocked(chip->base + offset,
value);
}
static struct gpio_chip ns9360_gpio_chip = {
.label = "ns9360-system-gpio",
.direction_input = ns9360_gpio_chip_dir_input,
.direction_output = ns9360_gpio_chip_dir_output,
.get = ns9360_gpio_chip_get,
.set = ns9360_gpio_chip_set,
.base = 0,
.ngpio = 72,
};
int __init ns9360_gpio_init(void)
{
if (!processor_is_ns9360())
return -EINVAL;
return gpiochip_add(&ns9360_gpio_chip);
}
|
