Commit | Line | Data |
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7bb412a6 SQ |
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> | |
c3c1250e | 22 | #include <linux/hwspinlock.h> |
7bb412a6 SQ |
23 | |
24 | #include <plat/omap_hwmod.h> | |
25 | #include <plat/omap_device.h> | |
26 | ||
c3c1250e OBC |
27 | static struct hwspinlock_pdata omap_hwspinlock_pdata __initdata = { |
28 | .base_id = 0, | |
29 | }; | |
30 | ||
8c3d4534 | 31 | static int __init hwspinlocks_init(void) |
7bb412a6 SQ |
32 | { |
33 | int retval = 0; | |
34 | struct omap_hwmod *oh; | |
3528c58e | 35 | struct platform_device *pdev; |
7bb412a6 SQ |
36 | const char *oh_name = "spinlock"; |
37 | const char *dev_name = "omap_hwspinlock"; | |
38 | ||
39 | /* | |
40 | * Hwmod lookup will fail in case our platform doesn't support the | |
41 | * hardware spinlock module, so it is safe to run this initcall | |
42 | * on all omaps | |
43 | */ | |
44 | oh = omap_hwmod_lookup(oh_name); | |
45 | if (oh == NULL) | |
46 | return -EINVAL; | |
47 | ||
3f8ddb03 | 48 | pdev = omap_device_build(dev_name, 0, oh, &omap_hwspinlock_pdata, |
c3c1250e | 49 | sizeof(struct hwspinlock_pdata), |
3f8ddb03 | 50 | NULL, 0, false); |
3528c58e | 51 | if (IS_ERR(pdev)) { |
7bb412a6 SQ |
52 | pr_err("Can't build omap_device for %s:%s\n", dev_name, |
53 | oh_name); | |
3528c58e | 54 | retval = PTR_ERR(pdev); |
7bb412a6 SQ |
55 | } |
56 | ||
57 | return retval; | |
58 | } | |
59 | /* early board code might need to reserve specific hwspinlock instances */ | |
60 | postcore_initcall(hwspinlocks_init); |