Commit | Line | Data |
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dc38ad40 SG |
1 | /* |
2 | * Copyright 2008 Sascha Hauer, kernel@pengutronix.de | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version 2 | |
7 | * of the License, or (at your option) any later version. | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
16 | * Boston, MA 02110-1301, USA. | |
17 | */ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/init.h> | |
dc38ad40 | 22 | #include <linux/platform_device.h> |
dbc4245b | 23 | #include <linux/amba/bus.h> |
dc38ad40 SG |
24 | |
25 | struct platform_device *__init mxs_add_platform_device_dmamask( | |
26 | const char *name, int id, | |
27 | const struct resource *res, unsigned int num_resources, | |
28 | const void *data, size_t size_data, u64 dmamask) | |
29 | { | |
30 | int ret = -ENOMEM; | |
31 | struct platform_device *pdev; | |
32 | ||
33 | pdev = platform_device_alloc(name, id); | |
34 | if (!pdev) | |
35 | goto err; | |
36 | ||
37 | if (dmamask) { | |
38 | /* | |
39 | * This memory isn't freed when the device is put, | |
40 | * I don't have a nice idea for that though. Conceptually | |
41 | * dma_mask in struct device should not be a pointer. | |
42 | * See http://thread.gmane.org/gmane.linux.kernel.pci/9081 | |
43 | */ | |
44 | pdev->dev.dma_mask = | |
45 | kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL); | |
46 | if (!pdev->dev.dma_mask) | |
47 | /* ret is still -ENOMEM; */ | |
48 | goto err; | |
49 | ||
50 | *pdev->dev.dma_mask = dmamask; | |
51 | pdev->dev.coherent_dma_mask = dmamask; | |
52 | } | |
53 | ||
54 | if (res) { | |
55 | ret = platform_device_add_resources(pdev, res, num_resources); | |
56 | if (ret) | |
57 | goto err; | |
58 | } | |
59 | ||
60 | if (data) { | |
61 | ret = platform_device_add_data(pdev, data, size_data); | |
62 | if (ret) | |
63 | goto err; | |
64 | } | |
65 | ||
66 | ret = platform_device_add(pdev); | |
67 | if (ret) { | |
68 | err: | |
84082d66 LW |
69 | if (dmamask) |
70 | kfree(pdev->dev.dma_mask); | |
dc38ad40 SG |
71 | platform_device_put(pdev); |
72 | return ERR_PTR(ret); | |
73 | } | |
74 | ||
75 | return pdev; | |
76 | } | |
dbc4245b SG |
77 | |
78 | int __init mxs_add_amba_device(const struct amba_device *dev) | |
79 | { | |
80 | struct amba_device *adev = kmalloc(sizeof(*adev), GFP_KERNEL); | |
81 | ||
82 | if (!adev) { | |
83 | pr_err("%s: failed to allocate memory", __func__); | |
84 | return -ENOMEM; | |
85 | } | |
86 | ||
87 | *adev = *dev; | |
88 | ||
89 | return amba_device_register(adev, &iomem_resource); | |
90 | } |