Source of pci-label.c - linux-imx - PHYTEC BitBucket (Stash)

 
// SPDX-License-Identifier: GPL-2.0
/*
 * Purpose: Export the firmware instance and label associated with
 * a pci device to sysfs
 * Export the firmware instance and label associated with a PCI device to
 * sysfs
 *
 * Copyright (C) 2010 Dell Inc.
 * by Narendra K <Narendra_K@dell.com>,
 * Jordan Hargrave <Jordan_Hargrave@dell.com>
 *
 * PCI Firmware Specification Revision 3.1 section 4.6.7 (DSM for Naming a
 * PCI or PCI Express Device Under Operating Systems) defines an instance
 * number and string name. This code retrieves them and exports them to sysfs.
 * If the system firmware does not provide the ACPI _DSM (Device Specific
 * Method), then the SMBIOS type 41 instance number and string is exported to
 * sysfs.