pci-acpi.h revision 84845c070ce3ac4d3bd2c148fa20ba8ce5409167 
1/*
2 * File		pci-acpi.h
3 *
4 * Copyright (C) 2004 Intel
5 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
6 */
7
8#ifndef _PCI_ACPI_H_
9#define _PCI_ACPI_H_
10
11#include <linux/acpi.h>
12
13#ifdef CONFIG_ACPI
14static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
15{
16	struct pci_bus *pbus = pdev->bus;
17	/* Find a PCI root bus */
18	while (pbus->parent)
19		pbus = pbus->parent;
20	return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
21					      pbus->number);
22}
23
24static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
25{
26	if (!pci_is_root_bus(pbus))
27		return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
28	return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
29					      pbus->number);
30}
31#else
32static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
33{ return NULL; }
34#endif
35
36#endif	/* _PCI_ACPI_H_ */
37