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62ca8034 SH |
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 | ||
a3e2cd7f | 13 | #include <linux/err.h> |
62ca8034 SH |
14 | #include <linux/interrupt.h> |
15 | #include <linux/module.h> | |
16 | #include <linux/io.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> | |
c91eab4b | 23 | #include <linux/of.h> |
f629ba2c | 24 | #include <linux/clk.h> |
c91eab4b | 25 | |
62ca8034 | 26 | #include "dw_mmc.h" |
7725a52c | 27 | #include "dw_mmc-pltfm.h" |
62ca8034 | 28 | |
800d78bf | 29 | int dw_mci_pltfm_register(struct platform_device *pdev, |
bcc87666 | 30 | const struct dw_mci_drv_data *drv_data) |
62ca8034 SH |
31 | { |
32 | struct dw_mci *host; | |
33 | struct resource *regs; | |
62ca8034 | 34 | |
bb8bdc77 | 35 | host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); |
62ca8034 SH |
36 | if (!host) |
37 | return -ENOMEM; | |
38 | ||
62ca8034 | 39 | host->irq = platform_get_irq(pdev, 0); |
bb8bdc77 TA |
40 | if (host->irq < 0) |
41 | return host->irq; | |
62ca8034 | 42 | |
800d78bf | 43 | host->drv_data = drv_data; |
4a90920c | 44 | host->dev = &pdev->dev; |
62ca8034 SH |
45 | host->irq_flags = 0; |
46 | host->pdata = pdev->dev.platform_data; | |
bcc87666 AS |
47 | |
48 | regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
3fc7eaef | 49 | /* Get registers' physical base address */ |
260b3164 | 50 | host->phy_regs = regs->start; |
a3e2cd7f TR |
51 | host->regs = devm_ioremap_resource(&pdev->dev, regs); |
52 | if (IS_ERR(host->regs)) | |
53 | return PTR_ERR(host->regs); | |
bb8bdc77 | 54 | |
62ca8034 | 55 | platform_set_drvdata(pdev, host); |
dd369800 | 56 | return dw_mci_probe(host); |
62ca8034 | 57 | } |
17403f23 TA |
58 | EXPORT_SYMBOL_GPL(dw_mci_pltfm_register); |
59 | ||
62ca8034 SH |
60 | #ifdef CONFIG_PM_SLEEP |
61 | /* | |
62 | * TODO: we should probably disable the clock to the card in the suspend path. | |
63 | */ | |
64 | static int dw_mci_pltfm_suspend(struct device *dev) | |
65 | { | |
62ca8034 SH |
66 | struct dw_mci *host = dev_get_drvdata(dev); |
67 | ||
dd369800 | 68 | return dw_mci_suspend(host); |
62ca8034 SH |
69 | } |
70 | ||
71 | static int dw_mci_pltfm_resume(struct device *dev) | |
72 | { | |
62ca8034 SH |
73 | struct dw_mci *host = dev_get_drvdata(dev); |
74 | ||
dd369800 | 75 | return dw_mci_resume(host); |
62ca8034 | 76 | } |
62ca8034 SH |
77 | #endif /* CONFIG_PM_SLEEP */ |
78 | ||
17403f23 TA |
79 | SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume); |
80 | EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops); | |
62ca8034 | 81 | |
c91eab4b TA |
82 | static const struct of_device_id dw_mci_pltfm_match[] = { |
83 | { .compatible = "snps,dw-mshc", }, | |
aaaaeb7a JC |
84 | { .compatible = "altr,socfpga-dw-mshc", }, |
85 | { .compatible = "img,pistachio-dw-mshc", }, | |
c91eab4b TA |
86 | {}, |
87 | }; | |
88 | MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match); | |
89 | ||
b177a530 HS |
90 | static int dw_mci_pltfm_probe(struct platform_device *pdev) |
91 | { | |
c73e41c8 HS |
92 | const struct dw_mci_drv_data *drv_data = NULL; |
93 | const struct of_device_id *match; | |
94 | ||
95 | if (pdev->dev.of_node) { | |
96 | match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node); | |
97 | drv_data = match->data; | |
98 | } | |
99 | ||
100 | return dw_mci_pltfm_register(pdev, drv_data); | |
b177a530 HS |
101 | } |
102 | ||
103 | int dw_mci_pltfm_remove(struct platform_device *pdev) | |
104 | { | |
105 | struct dw_mci *host = platform_get_drvdata(pdev); | |
106 | ||
107 | dw_mci_remove(host); | |
108 | return 0; | |
109 | } | |
110 | EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove); | |
111 | ||
62ca8034 | 112 | static struct platform_driver dw_mci_pltfm_driver = { |
49480cf2 | 113 | .probe = dw_mci_pltfm_probe, |
4e608e4e | 114 | .remove = dw_mci_pltfm_remove, |
62ca8034 SH |
115 | .driver = { |
116 | .name = "dw_mmc", | |
cf109bc0 | 117 | .of_match_table = dw_mci_pltfm_match, |
62ca8034 SH |
118 | .pm = &dw_mci_pltfm_pmops, |
119 | }, | |
120 | }; | |
121 | ||
49480cf2 | 122 | module_platform_driver(dw_mci_pltfm_driver); |
62ca8034 SH |
123 | |
124 | MODULE_DESCRIPTION("DW Multimedia Card Interface driver"); | |
125 | MODULE_AUTHOR("NXP Semiconductor VietNam"); | |
126 | MODULE_AUTHOR("Imagination Technologies Ltd"); | |
127 | MODULE_LICENSE("GPL v2"); |