[RFC PATCH v4 4/5] ARM64/PCI: Start using quirks handling for ACPI based PCI host controller

From: Tomasz Nowicki
Date: Tue Jun 28 2016 - 03:54:46 EST


Since there are platforms which have non-compliant ECAM space we need to
override these accessors prior to PCI buses enumeration. In order to do
that we call pci_mcfg_match_quirks() to retrieve custom
pci_config_window structure. If no correlated quirk on list, use
fully ECAM compliant generic PCI config accessors.

Signed-off-by: Tomasz Nowicki <tn@xxxxxxxxxxxx>
---
arch/arm64/kernel/pci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index addf00c..ef142b8 100644
--- a/arch/arm64/kernel/pci.c
+++ b/arch/arm64/kernel/pci.c
@@ -152,8 +152,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
if (!ri)
return NULL;

- ri->cfg = pci_acpi_setup_ecam_mapping(root,
- &pci_generic_ecam_ops.pci_ops);
+ ri->cfg = pci_mcfg_match_quirks(root);
if (!ri->cfg) {
kfree(ri);
return NULL;
--
1.9.1