Commit 769b461fc0c0 ("arm64: PCI: Drop DT IRQ allocation from
pcibios_alloc_irq()") was assuming all PCI host controller drivers had
been converted to use ->map_irq(), but that wasn't the case:
pci-aardvark had not been converted. Due to this, it broke the support
for legacy PCI interrupts when using the pci-aardvark driver (used on
Marvell Armada 3720 platforms).

In order to fix this, we make sure the ->map_irq and ->swizzle_irq
fields of pci_host_bridge are properly filled in.

Fixes: 769b461fc0c0 ("arm64: PCI: Drop DT IRQ allocation from pcibios_alloc_irq()")
Signed-off-by: Thomas Petazzoni <redacted>
Cc: <redacted> # v4.13+
---
 drivers/pci/host/pci-aardvark.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
index c1093b023e48..249a088b463c 100644
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/host/pci-aardvark.c

@@ -998,6 +998,8 @@ static int advk_pcie_probe(struct platform_device *pdev)
 	bridge->sysdata = pcie;
 	bridge->busnr = 0;
 	bridge->ops = &advk_pcie_ops;
+	bridge->map_irq = of_irq_parse_and_map_pci;
+	bridge->swizzle_irq = pci_common_swizzle;
 
 	ret = pci_scan_root_bus_bridge(bridge);
 	if (ret < 0) {

-- 
2.13.5