[mirror_ubuntu-zesty-kernel.git] / include / linux / pci-acpi.h

/*
 * File		pci-acpi.h
 *
 * Copyright (C) 2004 Intel
 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
 */

#ifndef _PCI_ACPI_H_
#define _PCI_ACPI_H_

#include <linux/acpi.h>

#ifdef CONFIG_ACPI
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
{
	struct pci_bus *pbus = pdev->bus;
	/* Find a PCI root bus */
	while (pbus->parent)
		pbus = pbus->parent;
	return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
					      pbus->number);
}

static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
{
	if (pbus->parent)
		return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
	return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
					      pbus->number);
}
#else
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
{ return NULL; }
#endif

#endif	/* _PCI_ACPI_H_ */
Commit	Line	Data
1da177e4 LT	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
8b62091e AP	11	#include <linux/acpi.h>
8b62091e AP	12
1da177e4	13	#ifdef CONFIG_ACPI
056c58e8 JS	14	static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
056c58e8 JS	15	{
d18690af KK	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);
056c58e8	22	}
e8c331e9 KK	23
	24	static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
	25	{
0747aaf4 KK	26	if (pbus->parent)
	27	return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
	28	return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
	29	pbus->number);
e8c331e9	30	}
1da177e4	31	#else
056c58e8 JS	32	static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
056c58e8 JS	33	{ return NULL; }
1da177e4 LT	34	#endif
	35
	36	#endif /* _PCI_ACPI_H_ */