1/*
2 * OMAP hardware spinlock device initialization
3 *
4 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com
5 *
6 * Contact: Simon Que <sque@ti.com>
7 *          Hari Kanigeri <h-kanigeri2@ti.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * General Public License for more details.
17 */
18
19#include <linux/kernel.h>
20#include <linux/init.h>
21#include <linux/err.h>
22#include <linux/hwspinlock.h>
23
24#include "soc.h"
25#include "omap_hwmod.h"
26#include "omap_device.h"
27
28static struct hwspinlock_pdata omap_hwspinlock_pdata __initdata = {
29	.base_id = 0,
30};
31
32static int __init hwspinlocks_init(void)
33{
34	int retval = 0;
35	struct omap_hwmod *oh;
36	struct platform_device *pdev;
37	const char *oh_name = "spinlock";
38	const char *dev_name = "omap_hwspinlock";
39
40	/*
41	 * Hwmod lookup will fail in case our platform doesn't support the
42	 * hardware spinlock module, so it is safe to run this initcall
43	 * on all omaps
44	 */
45	oh = omap_hwmod_lookup(oh_name);
46	if (oh == NULL)
47		return -EINVAL;
48
49	pdev = omap_device_build(dev_name, 0, oh, &omap_hwspinlock_pdata,
50				sizeof(struct hwspinlock_pdata));
51	if (IS_ERR(pdev)) {
52		pr_err("Can't build omap_device for %s:%s\n", dev_name,
53								oh_name);
54		retval = PTR_ERR(pdev);
55	}
56
57	return retval;
58}
59/* early board code might need to reserve specific hwspinlock instances */
60omap_postcore_initcall(hwspinlocks_init);
61