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1 | /* |
2 | * HSI clients registration interface |
3 | * |
4 | * Copyright (C) 2010 Nokia Corporation. All rights reserved. |
5 | * |
6 | * Contact: Carlos Chinea <carlos.chinea@nokia.com> |
7 | * |
8 | * This program is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU General Public License |
10 | * version 2 as published by the Free Software Foundation. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, but |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | * General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
20 | * 02110-1301 USA |
21 | */ |
22 | #include <linux/hsi/hsi.h> |
23 | #include <linux/list.h> |
24 | #include <linux/slab.h> |
25 | #include "hsi_core.h" |
26 | |
27 | /* |
28 | * hsi_board_list is only used internally by the HSI framework. |
29 | * No one else is allowed to make use of it. |
30 | */ |
31 | LIST_HEAD(hsi_board_list); |
32 | EXPORT_SYMBOL_GPL(hsi_board_list); |
33 | |
34 | /** |
35 | * hsi_register_board_info - Register HSI clients information |
36 | * @info: Array of HSI clients on the board |
37 | * @len: Length of the array |
38 | * |
39 | * HSI clients are statically declared and registered on board files. |
40 | * |
41 | * HSI clients will be automatically registered to the HSI bus once the |
42 | * controller and the port where the clients wishes to attach are registered |
43 | * to it. |
44 | * |
45 | * Return -errno on failure, 0 on success. |
46 | */ |
47 | int __init hsi_register_board_info(struct hsi_board_info const *info, |
48 | unsigned int len) |
49 | { |
50 | struct hsi_cl_info *cl_info; |
51 | |
52 | cl_info = kzalloc(sizeof(*cl_info) * len, GFP_KERNEL); |
53 | if (!cl_info) |
54 | return -ENOMEM; |
55 | |
56 | for (; len; len--, info++, cl_info++) { |
57 | cl_info->info = *info; |
58 | list_add_tail(&cl_info->list, &hsi_board_list); |
59 | } |
60 | |
61 | return 0; |
62 | } |
63 |
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v2.6.34-rc5
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