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/arch/m68knommu/platform/5249/gpio.c

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C | 65 lines | 46 code | 5 blank | 14 comment | 1 complexity | 2041ec4ef93bd62af2775b1f6ea5ab87 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 1/*
 2 * Coldfire generic GPIO support
 3 *
 4 * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License as published by
 8 * the Free Software Foundation; version 2 of the License.
 9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14*/
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18
19#include <asm/coldfire.h>
20#include <asm/mcfsim.h>
21#include <asm/mcfgpio.h>
22
23static struct mcf_gpio_chip mcf_gpio_chips[] = {
24	{
25		.gpio_chip			= {
26			.label			= "GPIO0",
27			.request		= mcf_gpio_request,
28			.free			= mcf_gpio_free,
29			.direction_input	= mcf_gpio_direction_input,
30			.direction_output	= mcf_gpio_direction_output,
31			.get			= mcf_gpio_get_value,
32			.set			= mcf_gpio_set_value,
33			.ngpio			= 32,
34		},
35		.pddr				= MCFSIM2_GPIOENABLE,
36		.podr				= MCFSIM2_GPIOWRITE,
37		.ppdr				= MCFSIM2_GPIOREAD,
38	},
39	{
40		.gpio_chip			= {
41			.label			= "GPIO1",
42			.request		= mcf_gpio_request,
43			.free			= mcf_gpio_free,
44			.direction_input	= mcf_gpio_direction_input,
45			.direction_output	= mcf_gpio_direction_output,
46			.get			= mcf_gpio_get_value,
47			.set			= mcf_gpio_set_value,
48			.base			= 32,
49			.ngpio			= 32,
50		},
51		.pddr				= MCFSIM2_GPIO1ENABLE,
52		.podr				= MCFSIM2_GPIO1WRITE,
53		.ppdr				= MCFSIM2_GPIO1READ,
54	},
55};
56
57static int __init mcf_gpio_init(void)
58{
59	unsigned i = 0;
60	while (i < ARRAY_SIZE(mcf_gpio_chips))
61		(void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
62	return 0;
63}
64
65core_initcall(mcf_gpio_init);