112 строки
2.7 KiB
C
112 строки
2.7 KiB
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");
|