2 * Synopsys DesignWare Multimedia Card Interface driver
4 * Copyright (C) 2009 NXP Semiconductors
5 * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
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.
13 #include <linux/err.h>
14 #include <linux/interrupt.h>
15 #include <linux/module.h>
17 #include <linux/irq.h>
18 #include <linux/platform_device.h>
19 #include <linux/slab.h>
20 #include <linux/mmc/host.h>
21 #include <linux/mmc/mmc.h>
22 #include <linux/mmc/dw_mmc.h>
27 int dw_mci_pltfm_register(struct platform_device *pdev,
28 const struct dw_mci_drv_data *drv_data)
31 struct resource *regs;
34 host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
38 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
42 host->irq = platform_get_irq(pdev, 0);
46 host->drv_data = drv_data;
47 host->dev = &pdev->dev;
49 host->pdata = pdev->dev.platform_data;
50 host->regs = devm_ioremap_resource(&pdev->dev, regs);
51 if (IS_ERR(host->regs))
52 return PTR_ERR(host->regs);
54 if (drv_data && drv_data->init) {
55 ret = drv_data->init(host);
60 platform_set_drvdata(pdev, host);
61 ret = dw_mci_probe(host);
64 EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
66 static int dw_mci_pltfm_probe(struct platform_device *pdev)
68 return dw_mci_pltfm_register(pdev, NULL);
71 static int dw_mci_pltfm_remove(struct platform_device *pdev)
73 struct dw_mci *host = platform_get_drvdata(pdev);
75 platform_set_drvdata(pdev, NULL);
79 EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
81 #ifdef CONFIG_PM_SLEEP
83 * TODO: we should probably disable the clock to the card in the suspend path.
85 static int dw_mci_pltfm_suspend(struct device *dev)
88 struct dw_mci *host = dev_get_drvdata(dev);
90 ret = dw_mci_suspend(host);
97 static int dw_mci_pltfm_resume(struct device *dev)
100 struct dw_mci *host = dev_get_drvdata(dev);
102 ret = dw_mci_resume(host);
109 #define dw_mci_pltfm_suspend NULL
110 #define dw_mci_pltfm_resume NULL
111 #endif /* CONFIG_PM_SLEEP */
113 SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
114 EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
116 static const struct of_device_id dw_mci_pltfm_match[] = {
117 { .compatible = "snps,dw-mshc", },
120 MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
122 static struct platform_driver dw_mci_pltfm_driver = {
123 .probe = dw_mci_pltfm_probe,
124 .remove = dw_mci_pltfm_remove,
127 .of_match_table = of_match_ptr(dw_mci_pltfm_match),
128 .pm = &dw_mci_pltfm_pmops,
132 module_platform_driver(dw_mci_pltfm_driver);
134 MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
135 MODULE_AUTHOR("NXP Semiconductor VietNam");
136 MODULE_AUTHOR("Imagination Technologies Ltd");
137 MODULE_LICENSE("GPL v2");