mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
a222b8f83b
Use pci_is_root_bus() in acpi_find_root_bridge_handle() to check if the pci bus is root, for code consistency. Reviewed-by: Alex Chiang <achiang@hp.com> Reviewed-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
37 lines
866 B
C
37 lines
866 B
C
/*
|
|
* 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 (!pci_is_root_bus(pbus))
|
|
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 (!pci_is_root_bus(pbus))
|
|
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_ */
|