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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2013 Google, Inc
*/
#include <vsprintf.h>
#include <dm/device.h>
#include <dm/ofnode.h>
#include <dm/read.h>
#include <dm/util.h>
#include <linux/libfdt.h>
#include <linux/list.h>
#if CONFIG_IS_ENABLED(OF_REAL)
int pci_get_devfn(struct udevice *dev)
{
struct fdt_pci_addr addr;
int ret;
/* Extract the devfn from fdt_pci_addr */
ret = ofnode_read_pci_addr(dev_ofnode(dev), FDT_PCI_SPACE_CONFIG,
"reg", &addr, NULL);
if (ret) {
if (ret != -ENOENT)
return -EINVAL;
}
return addr.phys_hi & 0xff00;
}
#endif
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