u-boot/drivers/mmc/mmc-uclass.c

/*
 * Copyright (C) 2015 Google, Inc
 * Written by Simon Glass <sjg@chromium.org>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <mmc.h>
#include <dm.h>
#include <dm/lists.h>
#include <dm/root.h>

struct mmc *mmc_get_mmc_dev(struct udevice *dev)
{
	struct mmc_uclass_priv *upriv;

	if (!device_active(dev))
		return NULL;
	upriv = dev_get_uclass_priv(dev);
	return upriv->mmc;
}

U_BOOT_DRIVER(mmc) = {
	.name	= "mmc",
	.id	= UCLASS_MMC,
};

UCLASS_DRIVER(mmc) = {
	.id		= UCLASS_MMC,
	.name		= "mmc",
	.flags		= DM_UC_FLAG_SEQ_ALIAS,
	.per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),
};