[mirror_ubuntu-focal-kernel.git] / drivers / mmc / host / dw_mmc-pltfm.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Synopsys DesignWare Multimedia Card Interface driver
 *
 * Copyright (C) 2009 NXP Semiconductors
 * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
 */

#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/of.h>
#include <linux/clk.h>

#include "dw_mmc.h"
#include "dw_mmc-pltfm.h"

int dw_mci_pltfm_register(struct platform_device *pdev,
			  const struct dw_mci_drv_data *drv_data)
{
	struct dw_mci *host;
	struct resource	*regs;

	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
	if (!host)
		return -ENOMEM;

	host->irq = platform_get_irq(pdev, 0);
	if (host->irq < 0)
		return host->irq;

	host->drv_data = drv_data;
	host->dev = &pdev->dev;
	host->irq_flags = 0;
	host->pdata = pdev->dev.platform_data;

	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	host->regs = devm_ioremap_resource(&pdev->dev, regs);
	if (IS_ERR(host->regs))
		return PTR_ERR(host->regs);

	/* Get registers' physical base address */
	host->phy_regs = regs->start;

	platform_set_drvdata(pdev, host);
	return dw_mci_probe(host);
}
EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);

const struct dev_pm_ops dw_mci_pltfm_pmops = {
	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
				pm_runtime_force_resume)
	SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
			   dw_mci_runtime_resume,
			   NULL)
};
EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);

static const struct of_device_id dw_mci_pltfm_match[] = {
	{ .compatible = "snps,dw-mshc", },
	{ .compatible = "altr,socfpga-dw-mshc", },
	{ .compatible = "img,pistachio-dw-mshc", },
	{},
};
MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);

static int dw_mci_pltfm_probe(struct platform_device *pdev)
{
	const struct dw_mci_drv_data *drv_data = NULL;
	const struct of_device_id *match;

	if (pdev->dev.of_node) {
		match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
		drv_data = match->data;
	}

	return dw_mci_pltfm_register(pdev, drv_data);
}

int dw_mci_pltfm_remove(struct platform_device *pdev)
{
	struct dw_mci *host = platform_get_drvdata(pdev);

	dw_mci_remove(host);
	return 0;
}
EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);

static struct platform_driver dw_mci_pltfm_driver = {
	.probe		= dw_mci_pltfm_probe,
	.remove		= dw_mci_pltfm_remove,
	.driver		= {
		.name		= "dw_mmc",
		.of_match_table	= dw_mci_pltfm_match,
		.pm		= &dw_mci_pltfm_pmops,
	},
};

module_platform_driver(dw_mci_pltfm_driver);

MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
MODULE_AUTHOR("NXP Semiconductor VietNam");
MODULE_AUTHOR("Imagination Technologies Ltd");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
62ca8034 SH	2	/*
	3	* Synopsys DesignWare Multimedia Card Interface driver
	4	*
	5	* Copyright (C) 2009 NXP Semiconductors
	6	* Copyright (C) 2009, 2010 Imagination Technologies Ltd.
62ca8034 SH	7	*/
62ca8034 SH	8
a3e2cd7f	9	#include <linux/err.h>
62ca8034 SH	10	#include <linux/interrupt.h>
	11	#include <linux/module.h>
	12	#include <linux/io.h>
	13	#include <linux/irq.h>
	14	#include <linux/platform_device.h>
ee2112be	15	#include <linux/pm_runtime.h>
62ca8034 SH	16	#include <linux/slab.h>
	17	#include <linux/mmc/host.h>
	18	#include <linux/mmc/mmc.h>
c91eab4b	19	#include <linux/of.h>
f629ba2c	20	#include <linux/clk.h>
c91eab4b	21
62ca8034	22	#include "dw_mmc.h"
7725a52c	23	#include "dw_mmc-pltfm.h"
62ca8034	24
800d78bf	25	int dw_mci_pltfm_register(struct platform_device *pdev,
bcc87666	26	const struct dw_mci_drv_data *drv_data)
62ca8034 SH	27	{
	28	struct dw_mci *host;
	29	struct resource *regs;
62ca8034	30
bb8bdc77	31	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
62ca8034 SH	32	if (!host)
	33	return -ENOMEM;
	34
62ca8034	35	host->irq = platform_get_irq(pdev, 0);
bb8bdc77 TA	36	if (host->irq < 0)
bb8bdc77 TA	37	return host->irq;
62ca8034	38
800d78bf	39	host->drv_data = drv_data;
4a90920c	40	host->dev = &pdev->dev;
62ca8034 SH	41	host->irq_flags = 0;
62ca8034 SH	42	host->pdata = pdev->dev.platform_data;
bcc87666 AS	43
bcc87666 AS	44	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
a3e2cd7f TR	45	host->regs = devm_ioremap_resource(&pdev->dev, regs);
	46	if (IS_ERR(host->regs))
	47	return PTR_ERR(host->regs);
bb8bdc77	48
45c7a490 JC	49	/* Get registers' physical base address */
	50	host->phy_regs = regs->start;
	51
62ca8034	52	platform_set_drvdata(pdev, host);
dd369800	53	return dw_mci_probe(host);
62ca8034	54	}
17403f23 TA	55	EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
17403f23 TA	56
ee2112be SL	57	const struct dev_pm_ops dw_mci_pltfm_pmops = {
	58	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
	59	pm_runtime_force_resume)
	60	SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
	61	dw_mci_runtime_resume,
	62	NULL)
	63	};
17403f23	64	EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
62ca8034	65
c91eab4b TA	66	static const struct of_device_id dw_mci_pltfm_match[] = {
c91eab4b TA	67	{ .compatible = "snps,dw-mshc", },
aaaaeb7a JC	68	{ .compatible = "altr,socfpga-dw-mshc", },
aaaaeb7a JC	69	{ .compatible = "img,pistachio-dw-mshc", },
c91eab4b TA	70	{},
	71	};
	72	MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
	73
b177a530 HS	74	static int dw_mci_pltfm_probe(struct platform_device *pdev)
b177a530 HS	75	{
c73e41c8 HS	76	const struct dw_mci_drv_data *drv_data = NULL;
	77	const struct of_device_id *match;
	78
	79	if (pdev->dev.of_node) {
	80	match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
	81	drv_data = match->data;
	82	}
	83
	84	return dw_mci_pltfm_register(pdev, drv_data);
b177a530 HS	85	}
	86
	87	int dw_mci_pltfm_remove(struct platform_device *pdev)
	88	{
	89	struct dw_mci *host = platform_get_drvdata(pdev);
	90
	91	dw_mci_remove(host);
	92	return 0;
	93	}
	94	EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
	95
62ca8034	96	static struct platform_driver dw_mci_pltfm_driver = {
49480cf2	97	.probe = dw_mci_pltfm_probe,
4e608e4e	98	.remove = dw_mci_pltfm_remove,
62ca8034 SH	99	.driver = {
62ca8034 SH	100	.name = "dw_mmc",
cf109bc0	101	.of_match_table = dw_mci_pltfm_match,
62ca8034 SH	102	.pm = &dw_mci_pltfm_pmops,
	103	},
	104	};
	105
49480cf2	106	module_platform_driver(dw_mci_pltfm_driver);
62ca8034 SH	107
	108	MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
	109	MODULE_AUTHOR("NXP Semiconductor VietNam");
	110	MODULE_AUTHOR("Imagination Technologies Ltd");
	111	MODULE_LICENSE("GPL v2");