powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias

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Other Linux architectures use DT property 'linux,pci-domain' for
specifying fixed PCI domain of PCI controller specified in Device-Tree.

And lot of Freescale powerpc boards have defined numbered pci alias in
Device-Tree for every PCIe controller which number specify preferred PCI
domain.

So prefer usage of DT property 'linux,pci-domain' (via function
of_get_pci_domain_nr()) and DT pci alias (via function
of_alias_get_id()) on powerpc architecture for assigning PCI domain to
PCI controller.

Fixes: 63a72284b1 ("powerpc/pci: Assign fixed PHB number based on device-tree properties")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220706102148.5060-2-pali@kernel.org

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Pali Rohár 2022-07-06 12:21:48 +02:00 • committed by Michael Ellerman

parent d20c96deb3

commit 0fe1e96fef

1 changed files with 19 additions and 8 deletions

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arch/powerpc/kernel/pci-common.c

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