| // 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 |