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PCI: Also call .add_bus() callback for root bus

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Similar to pcibios_add_bus(), call pci_ops.add_bus() when the root bus
is added. This allows host bridge drivers to do any setup requiring a
bus pointer.

There are currently no .add_bus() callbacks, so this is safe to do.

Link: https://lore.kernel.org/r/20200821035420.380495-15-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Rob Herring 2020-08-20 21:53:54 -06:00 committed by Lorenzo Pieralisi
parent c2b0c098fb
commit 6e8e104d21
1 changed files with 6 additions and 0 deletions
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6
drivers/pci/probe.c
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@ -941,6 +941,12 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
pcibios_add_bus(bus);
if (bus->ops->add_bus) {
err = bus->ops->add_bus(bus);
if (WARN_ON(err < 0))
dev_err(&bus->dev, "failed to add bus: %d\n", err);
}
/* Create legacy_io and legacy_mem files for this bus */
pci_create_legacy_files(bus);