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author | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2017-06-28 23:13:55 +0300 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-06-28 23:13:55 +0300 |
commit | 1228c4b6c19a76a2691cfb1403ad1eebf5852b76 (patch) | |
tree | c7a04105c0fa1bd7909ac43c1033910763b03ba7 /arch/arm/mach-mv78xx0 | |
parent | 792abc6e2f5a5ab996bf6cc1947b382dda29a82d (diff) | |
download | linux-1228c4b6c19a76a2691cfb1403ad1eebf5852b76.tar.xz |
PCI: Add pci_scan_root_bus_bridge() interface
The current pci_scan_root_bus() interface is made up of two main code
paths:
- pci_create_root_bus()
- pci_scan_child_bus()
pci_create_root_bus() is a wrapper function that allows to create a struct
pci_host_bridge structure, initialize it with the passed parameters and
register it with the kernel.
As the struct pci_host_bridge require additional struct members,
pci_create_root_bus() parameters list has grown in time, making it unwieldy
to add further parameters to it in case the struct pci_host_bridge gains
more members fields to augment its functionality.
Since PCI core code provides functions to allocate struct pci_host_bridge,
instead of forcing the pci_create_root_bus() interface to add new
parameters to cater for new struct pci_host_bridge functionality, it is
more suitable to add an interface in PCI core code to scan a PCI bus
straight from a struct pci_host_bridge created and customized by each
specific PCI host controller driver.
Add a pci_scan_root_bus_bridge() function to allow PCI host controller
drivers to create and initialize struct pci_host_bridge and scan the
resulting bus.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-mv78xx0')
0 files changed, 0 insertions, 0 deletions