1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Synopsys DesignWare Multimedia Card Interface driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2009 NXP Semiconductors
6*4882a593Smuzhiyun * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/err.h>
10*4882a593Smuzhiyun #include <linux/interrupt.h>
11*4882a593Smuzhiyun #include <linux/module.h>
12*4882a593Smuzhiyun #include <linux/io.h>
13*4882a593Smuzhiyun #include <linux/irq.h>
14*4882a593Smuzhiyun #include <linux/platform_device.h>
15*4882a593Smuzhiyun #include <linux/pm_runtime.h>
16*4882a593Smuzhiyun #include <linux/slab.h>
17*4882a593Smuzhiyun #include <linux/mmc/host.h>
18*4882a593Smuzhiyun #include <linux/mmc/mmc.h>
19*4882a593Smuzhiyun #include <linux/of.h>
20*4882a593Smuzhiyun #include <linux/clk.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include "dw_mmc.h"
23*4882a593Smuzhiyun #include "dw_mmc-pltfm.h"
24*4882a593Smuzhiyun
dw_mci_pltfm_register(struct platform_device * pdev,const struct dw_mci_drv_data * drv_data)25*4882a593Smuzhiyun int dw_mci_pltfm_register(struct platform_device *pdev,
26*4882a593Smuzhiyun const struct dw_mci_drv_data *drv_data)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun struct dw_mci *host;
29*4882a593Smuzhiyun struct resource *regs;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
32*4882a593Smuzhiyun if (!host)
33*4882a593Smuzhiyun return -ENOMEM;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun host->irq = platform_get_irq(pdev, 0);
36*4882a593Smuzhiyun if (host->irq < 0)
37*4882a593Smuzhiyun return host->irq;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun host->drv_data = drv_data;
40*4882a593Smuzhiyun host->dev = &pdev->dev;
41*4882a593Smuzhiyun host->irq_flags = 0;
42*4882a593Smuzhiyun host->pdata = pdev->dev.platform_data;
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
45*4882a593Smuzhiyun host->regs = devm_ioremap_resource(&pdev->dev, regs);
46*4882a593Smuzhiyun if (IS_ERR(host->regs))
47*4882a593Smuzhiyun return PTR_ERR(host->regs);
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun /* Get registers' physical base address */
50*4882a593Smuzhiyun host->phy_regs = regs->start;
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun platform_set_drvdata(pdev, host);
53*4882a593Smuzhiyun return dw_mci_probe(host);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun const struct dev_pm_ops dw_mci_pltfm_pmops = {
58*4882a593Smuzhiyun SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
59*4882a593Smuzhiyun pm_runtime_force_resume)
60*4882a593Smuzhiyun SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
61*4882a593Smuzhiyun dw_mci_runtime_resume,
62*4882a593Smuzhiyun NULL)
63*4882a593Smuzhiyun };
64*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun static const struct of_device_id dw_mci_pltfm_match[] = {
67*4882a593Smuzhiyun { .compatible = "snps,dw-mshc", },
68*4882a593Smuzhiyun { .compatible = "altr,socfpga-dw-mshc", },
69*4882a593Smuzhiyun { .compatible = "img,pistachio-dw-mshc", },
70*4882a593Smuzhiyun {},
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
73*4882a593Smuzhiyun
dw_mci_pltfm_probe(struct platform_device * pdev)74*4882a593Smuzhiyun static int dw_mci_pltfm_probe(struct platform_device *pdev)
75*4882a593Smuzhiyun {
76*4882a593Smuzhiyun const struct dw_mci_drv_data *drv_data = NULL;
77*4882a593Smuzhiyun const struct of_device_id *match;
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun if (pdev->dev.of_node) {
80*4882a593Smuzhiyun match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
81*4882a593Smuzhiyun drv_data = match->data;
82*4882a593Smuzhiyun }
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun return dw_mci_pltfm_register(pdev, drv_data);
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
dw_mci_pltfm_remove(struct platform_device * pdev)87*4882a593Smuzhiyun int dw_mci_pltfm_remove(struct platform_device *pdev)
88*4882a593Smuzhiyun {
89*4882a593Smuzhiyun struct dw_mci *host = platform_get_drvdata(pdev);
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun dw_mci_remove(host);
92*4882a593Smuzhiyun return 0;
93*4882a593Smuzhiyun }
94*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
95*4882a593Smuzhiyun
96*4882a593Smuzhiyun static struct platform_driver dw_mci_pltfm_driver = {
97*4882a593Smuzhiyun .probe = dw_mci_pltfm_probe,
98*4882a593Smuzhiyun .remove = dw_mci_pltfm_remove,
99*4882a593Smuzhiyun .driver = {
100*4882a593Smuzhiyun .name = "dw_mmc",
101*4882a593Smuzhiyun .probe_type = PROBE_PREFER_ASYNCHRONOUS,
102*4882a593Smuzhiyun .of_match_table = dw_mci_pltfm_match,
103*4882a593Smuzhiyun .pm = &dw_mci_pltfm_pmops,
104*4882a593Smuzhiyun },
105*4882a593Smuzhiyun };
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun module_platform_driver(dw_mci_pltfm_driver);
108*4882a593Smuzhiyun
109*4882a593Smuzhiyun MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
110*4882a593Smuzhiyun MODULE_AUTHOR("NXP Semiconductor VietNam");
111*4882a593Smuzhiyun MODULE_AUTHOR("Imagination Technologies Ltd");
112*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
113