[linux-2.6-block.git] / drivers / mmc / host / dw_mmc-pci.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Synopsys DesignWare Multimedia Card PCI Interface driver
 *
 * Copyright (C) 2012 Vayavya Labs Pvt. Ltd.
 */

#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include "dw_mmc.h"

#define PCI_BAR_NO 2
#define SYNOPSYS_DW_MCI_VENDOR_ID 0x700
#define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107
/* Defining the Capabilities */
#define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED |\
				MMC_CAP_SD_HIGHSPEED | MMC_CAP_8_BIT_DATA |\
				MMC_CAP_SDIO_IRQ)

static struct dw_mci_board pci_board_data = {
	.caps				= DW_MCI_CAPABILITIES,
	.bus_hz				= 33 * 1000 * 1000,
	.detect_delay_ms		= 200,
	.fifo_depth			= 32,
};

static int dw_mci_pci_probe(struct pci_dev *pdev,
			    const struct pci_device_id *entries)
{
	struct dw_mci *host;
	int ret;

	ret = pcim_enable_device(pdev);
	if (ret)
		return ret;

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

	host->irq = pdev->irq;
	host->irq_flags = IRQF_SHARED;
	host->dev = &pdev->dev;
	host->pdata = &pci_board_data;

	ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev));
	if (ret)
		return ret;

	host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO];

	pci_set_master(pdev);

	ret = dw_mci_probe(host);
	if (ret)
		return ret;

	pci_set_drvdata(pdev, host);

	return 0;
}

static void dw_mci_pci_remove(struct pci_dev *pdev)
{
	struct dw_mci *host = pci_get_drvdata(pdev);

	dw_mci_remove(host);
}

static const struct dev_pm_ops dw_mci_pci_dev_pm_ops = {
	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)
};

static const struct pci_device_id dw_mci_pci_id[] = {
	{ PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) },
	{}
};
MODULE_DEVICE_TABLE(pci, dw_mci_pci_id);

static struct pci_driver dw_mci_pci_driver = {
	.name		= "dw_mmc_pci",
	.id_table	= dw_mci_pci_id,
	.probe		= dw_mci_pci_probe,
	.remove		= dw_mci_pci_remove,
	.driver		=	{
		.pm =   &dw_mci_pci_dev_pm_ops,
	},
};

module_pci_driver(dw_mci_pci_driver);

MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver");
MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>");
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 PCI Interface driver
	4	*
	5	* Copyright (C) 2012 Vayavya Labs Pvt. Ltd.
62ca8034 SH	6	*/
	7
	8	#include <linux/interrupt.h>
	9	#include <linux/module.h>
	10	#include <linux/io.h>
	11	#include <linux/irq.h>
	12	#include <linux/pci.h>
53b27288	13	#include <linux/pm_runtime.h>
62ca8034 SH	14	#include <linux/slab.h>
	15	#include <linux/mmc/host.h>
	16	#include <linux/mmc/mmc.h>
62ca8034 SH	17	#include "dw_mmc.h"
	18
	19	#define PCI_BAR_NO 2
62ca8034 SH	20	#define SYNOPSYS_DW_MCI_VENDOR_ID 0x700
	21	#define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107
	22	/* Defining the Capabilities */
	23	#define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA \| MMC_CAP_MMC_HIGHSPEED \|\
	24	MMC_CAP_SD_HIGHSPEED \| MMC_CAP_8_BIT_DATA \|\
	25	MMC_CAP_SDIO_IRQ)
	26
	27	static struct dw_mci_board pci_board_data = {
62ca8034 SH	28	.caps = DW_MCI_CAPABILITIES,
	29	.bus_hz = 33 * 1000 * 1000,
	30	.detect_delay_ms = 200,
	31	.fifo_depth = 32,
	32	};
	33
c3be1efd	34	static int dw_mci_pci_probe(struct pci_dev *pdev,
13959741	35	const struct pci_device_id *entries)
62ca8034 SH	36	{
	37	struct dw_mci *host;
	38	int ret;
	39
13959741	40	ret = pcim_enable_device(pdev);
62ca8034 SH	41	if (ret)
62ca8034 SH	42	return ret;
62ca8034	43
13959741 AS	44	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
	45	if (!host)
	46	return -ENOMEM;
62ca8034 SH	47
	48	host->irq = pdev->irq;
	49	host->irq_flags = IRQF_SHARED;
4a90920c	50	host->dev = &pdev->dev;
62ca8034 SH	51	host->pdata = &pci_board_data;
62ca8034 SH	52
13959741 AS	53	ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev));
	54	if (ret)
	55	return ret;
	56
afeb52d6	57	host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO];
62ca8034	58
638585f6 AS	59	pci_set_master(pdev);
638585f6 AS	60
62ca8034 SH	61	ret = dw_mci_probe(host);
62ca8034 SH	62	if (ret)
13959741 AS	63	return ret;
	64
	65	pci_set_drvdata(pdev, host);
62ca8034	66
13959741	67	return 0;
62ca8034 SH	68	}
62ca8034 SH	69
6e0ee714	70	static void dw_mci_pci_remove(struct pci_dev *pdev)
62ca8034 SH	71	{
	72	struct dw_mci *host = pci_get_drvdata(pdev);
	73
	74	dw_mci_remove(host);
62ca8034 SH	75	}
62ca8034 SH	76
53b27288 SL	77	static const struct dev_pm_ops dw_mci_pci_dev_pm_ops = {
	78	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
	79	pm_runtime_force_resume)
	80	SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
	81	dw_mci_runtime_resume,
	82	NULL)
	83	};
62ca8034	84
9baa3c34	85	static const struct pci_device_id dw_mci_pci_id[] = {
62ca8034 SH	86	{ PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) },
	87	{}
	88	};
	89	MODULE_DEVICE_TABLE(pci, dw_mci_pci_id);
	90
	91	static struct pci_driver dw_mci_pci_driver = {
	92	.name = "dw_mmc_pci",
	93	.id_table = dw_mci_pci_id,
	94	.probe = dw_mci_pci_probe,
4e608e4e	95	.remove = dw_mci_pci_remove,
62ca8034	96	.driver = {
53b27288	97	.pm = &dw_mci_pci_dev_pm_ops,
62ca8034 SH	98	},
	99	};
	100
350e3e00	101	module_pci_driver(dw_mci_pci_driver);
62ca8034 SH	102
	103	MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver");
	104	MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>");
	105	MODULE_LICENSE("GPL v2");