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/arch/mips/cobalt/rtc.c

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C | 64 lines | 37 code | 8 blank | 19 comment | 3 complexity | 48248b3195c3ad6c6f159df9a7c7c0b8 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 1/*
 2 *  Registration of Cobalt RTC platform device.
 3 *
 4 *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
 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; either version 2 of the License, or
 9 *  (at your option) any later version.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with this program; if not, write to the Free Software
18 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
19 */
20#include <linux/errno.h>
21#include <linux/init.h>
22#include <linux/ioport.h>
23#include <linux/mc146818rtc.h>
24#include <linux/platform_device.h>
25
26static struct resource cobalt_rtc_resource[] __initdata = {
27	{
28		.start	= 0x70,
29		.end	= 0x77,
30		.flags	= IORESOURCE_IO,
31	},
32	{
33		.start	= RTC_IRQ,
34		.end	= RTC_IRQ,
35		.flags	= IORESOURCE_IRQ,
36	},
37};
38
39static __init int cobalt_rtc_add(void)
40{
41	struct platform_device *pdev;
42	int retval;
43
44	pdev = platform_device_alloc("rtc_cmos", -1);
45	if (!pdev)
46		return -ENOMEM;
47
48	retval = platform_device_add_resources(pdev, cobalt_rtc_resource,
49	                                       ARRAY_SIZE(cobalt_rtc_resource));
50	if (retval)
51		goto err_free_device;
52
53	retval = platform_device_add(pdev);
54	if (retval)
55		goto err_free_device;
56
57	return 0;
58
59err_free_device:
60	platform_device_put(pdev);
61
62	return retval;
63}
64device_initcall(cobalt_rtc_add);