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Shashidhar Hiremath62ca8032012-01-13 16:04:57 +05301/*
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
Thierry Redinga3e2cd72013-01-21 11:09:11 +010013#include <linux/err.h>
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053014#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>
Shawn Linee2112b2016-10-12 10:56:46 +080019#include <linux/pm_runtime.h>
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053020#include <linux/slab.h>
21#include <linux/mmc/host.h>
22#include <linux/mmc/mmc.h>
Thomas Abrahamc91eab42012-09-17 18:16:40 +000023#include <linux/of.h>
Addy Kef629ba22014-07-31 14:01:38 +080024#include <linux/clk.h>
Thomas Abrahamc91eab42012-09-17 18:16:40 +000025
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053026#include "dw_mmc.h"
Jingoo Han7725a522013-08-06 10:54:07 +090027#include "dw_mmc-pltfm.h"
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053028
Thomas Abraham800d78b2012-09-17 18:16:42 +000029int dw_mci_pltfm_register(struct platform_device *pdev,
Andy Shevchenkobcc87662013-06-05 12:24:10 +030030 const struct dw_mci_drv_data *drv_data)
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053031{
32 struct dw_mci *host;
33 struct resource *regs;
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053034
Thomas Abrahambb8bdc72012-09-17 18:16:36 +000035 host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053036 if (!host)
37 return -ENOMEM;
38
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053039 host->irq = platform_get_irq(pdev, 0);
Thomas Abrahambb8bdc72012-09-17 18:16:36 +000040 if (host->irq < 0)
41 return host->irq;
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053042
Thomas Abraham800d78b2012-09-17 18:16:42 +000043 host->drv_data = drv_data;
Thomas Abraham4a909202012-09-17 18:16:35 +000044 host->dev = &pdev->dev;
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053045 host->irq_flags = 0;
46 host->pdata = pdev->dev.platform_data;
Andy Shevchenkobcc87662013-06-05 12:24:10 +030047
48 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
Thierry Redinga3e2cd72013-01-21 11:09:11 +010049 host->regs = devm_ioremap_resource(&pdev->dev, regs);
50 if (IS_ERR(host->regs))
51 return PTR_ERR(host->regs);
Thomas Abrahambb8bdc72012-09-17 18:16:36 +000052
Jaehoon Chung45c7a492016-10-21 19:57:57 +090053 /* Get registers' physical base address */
54 host->phy_regs = regs->start;
55
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053056 platform_set_drvdata(pdev, host);
Andy Shevchenkodd369802013-06-05 12:24:11 +030057 return dw_mci_probe(host);
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053058}
Thomas Abraham17403f22012-09-17 18:16:41 +000059EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
60
Shawn Linee2112b2016-10-12 10:56:46 +080061const struct dev_pm_ops dw_mci_pltfm_pmops = {
62 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
63 pm_runtime_force_resume)
64 SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
65 dw_mci_runtime_resume,
66 NULL)
67};
Thomas Abraham17403f22012-09-17 18:16:41 +000068EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +053069
Thomas Abrahamc91eab42012-09-17 18:16:40 +000070static const struct of_device_id dw_mci_pltfm_match[] = {
71 { .compatible = "snps,dw-mshc", },
Jaehoon Chungaaaaeb72016-01-21 11:01:06 +090072 { .compatible = "altr,socfpga-dw-mshc", },
73 { .compatible = "img,pistachio-dw-mshc", },
Thomas Abrahamc91eab42012-09-17 18:16:40 +000074 {},
75};
76MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
77
Heiko Stübnerb177a532013-06-13 10:57:01 +020078static int dw_mci_pltfm_probe(struct platform_device *pdev)
79{
Heiko Stübnerc73e41c2013-06-27 11:55:35 -040080 const struct dw_mci_drv_data *drv_data = NULL;
81 const struct of_device_id *match;
82
83 if (pdev->dev.of_node) {
84 match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
85 drv_data = match->data;
86 }
87
88 return dw_mci_pltfm_register(pdev, drv_data);
Heiko Stübnerb177a532013-06-13 10:57:01 +020089}
90
91int dw_mci_pltfm_remove(struct platform_device *pdev)
92{
93 struct dw_mci *host = platform_get_drvdata(pdev);
94
95 dw_mci_remove(host);
96 return 0;
97}
98EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
99
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +0530100static struct platform_driver dw_mci_pltfm_driver = {
Andy Shevchenko49480cf2012-10-03 16:26:37 +0300101 .probe = dw_mci_pltfm_probe,
Greg Kroah-Hartman4e608e42012-12-21 15:05:47 -0800102 .remove = dw_mci_pltfm_remove,
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +0530103 .driver = {
104 .name = "dw_mmc",
Sachin Kamatcf109bc2014-02-25 15:18:23 +0530105 .of_match_table = dw_mci_pltfm_match,
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +0530106 .pm = &dw_mci_pltfm_pmops,
107 },
108};
109
Andy Shevchenko49480cf2012-10-03 16:26:37 +0300110module_platform_driver(dw_mci_pltfm_driver);
Shashidhar Hiremath62ca8032012-01-13 16:04:57 +0530111
112MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
113MODULE_AUTHOR("NXP Semiconductor VietNam");
114MODULE_AUTHOR("Imagination Technologies Ltd");
115MODULE_LICENSE("GPL v2");