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PCI: Unify ACPI and DT 'preserve config' support

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BugLink: https://bugs.launchpad.net/bugs/2080908

Unify the 'preserve config' support across ACPI and device-tree
boot flows.

Link: https://lore.kernel.org/r/20240508174138.3630283-4-vidyas@nvidia.com
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
(cherry picked from commit 1e6922482cd429e568537f8f6cf159765b5d176f)
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Noah Wager <noah.wager@canonical.com>
This commit is contained in:
Vidya Sagar
2024-05-08 23:11:37 +05:30
committed by Noah Wager
parent e5c0d2b6dd
commit e4a87cf4cf
1 changed files with 3 additions and 0 deletions
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drivers/pci/probe.c
+3
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@@ -937,6 +937,9 @@ static bool pci_preserve_config(struct pci_host_bridge *host_bridge)
if (pci_acpi_preserve_config(host_bridge))
return true;
if (host_bridge->dev.parent && host_bridge->dev.parent->of_node)
return of_pci_preserve_config(host_bridge->dev.parent->of_node);
return false;
}