mmc: dw_mmc: fixed a section mismatch in dw_mci_init_slot
[cascardo/linux.git] / drivers / mmc / host / dw_mmc-pltfm.c
1 /*
2  * Synopsys DesignWare Multimedia Card Interface driver
3  *
4  * Copyright (C) 2009 NXP Semiconductors
5  * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  */
12
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/io.h>
16 #include <linux/irq.h>
17 #include <linux/platform_device.h>
18 #include <linux/slab.h>
19 #include <linux/mmc/host.h>
20 #include <linux/mmc/mmc.h>
21 #include <linux/mmc/dw_mmc.h>
22 #include "dw_mmc.h"
23
24 static int __devinit dw_mci_pltfm_probe(struct platform_device *pdev)
25 {
26         struct dw_mci *host;
27         struct resource *regs;
28         int ret;
29
30         host = kzalloc(sizeof(struct dw_mci), GFP_KERNEL);
31         if (!host)
32                 return -ENOMEM;
33
34         regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
35         if (!regs) {
36                 ret = -ENXIO;
37                 goto err_free;
38         }
39
40         host->irq = platform_get_irq(pdev, 0);
41         if (host->irq < 0) {
42                 ret = host->irq;
43                 goto err_free;
44         }
45
46         host->dev = pdev->dev;
47         host->irq_flags = 0;
48         host->pdata = pdev->dev.platform_data;
49         ret = -ENOMEM;
50         host->regs = ioremap(regs->start, resource_size(regs));
51         if (!host->regs)
52                 goto err_free;
53         platform_set_drvdata(pdev, host);
54         ret = dw_mci_probe(host);
55         if (ret)
56                 goto err_out;
57         return ret;
58 err_out:
59         iounmap(host->regs);
60 err_free:
61         kfree(host);
62         return ret;
63 }
64
65 static int __devexit dw_mci_pltfm_remove(struct platform_device *pdev)
66 {
67         struct dw_mci *host = platform_get_drvdata(pdev);
68
69         platform_set_drvdata(pdev, NULL);
70         dw_mci_remove(host);
71         iounmap(host->regs);
72         kfree(host);
73         return 0;
74 }
75
76 #ifdef CONFIG_PM_SLEEP
77 /*
78  * TODO: we should probably disable the clock to the card in the suspend path.
79  */
80 static int dw_mci_pltfm_suspend(struct device *dev)
81 {
82         int ret;
83         struct dw_mci *host = dev_get_drvdata(dev);
84
85         ret = dw_mci_suspend(host);
86         if (ret)
87                 return ret;
88
89         return 0;
90 }
91
92 static int dw_mci_pltfm_resume(struct device *dev)
93 {
94         int ret;
95         struct dw_mci *host = dev_get_drvdata(dev);
96
97         ret = dw_mci_resume(host);
98         if (ret)
99                 return ret;
100
101         return 0;
102 }
103 #else
104 #define dw_mci_pltfm_suspend    NULL
105 #define dw_mci_pltfm_resume     NULL
106 #endif /* CONFIG_PM_SLEEP */
107
108 static SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
109
110 static struct platform_driver dw_mci_pltfm_driver = {
111         .remove         = __exit_p(dw_mci_pltfm_remove),
112         .driver         = {
113                 .name           = "dw_mmc",
114                 .pm             = &dw_mci_pltfm_pmops,
115         },
116 };
117
118 static int __init dw_mci_init(void)
119 {
120         return platform_driver_probe(&dw_mci_pltfm_driver, dw_mci_pltfm_probe);
121 }
122
123 static void __exit dw_mci_exit(void)
124 {
125         platform_driver_unregister(&dw_mci_pltfm_driver);
126 }
127
128 module_init(dw_mci_init);
129 module_exit(dw_mci_exit);
130
131 MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
132 MODULE_AUTHOR("NXP Semiconductor VietNam");
133 MODULE_AUTHOR("Imagination Technologies Ltd");
134 MODULE_LICENSE("GPL v2");