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From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Date: Wed, 28 Jun 2017 15:14:10 -0500
Subject: PCI: xgene: Move to struct pci_host_bridge IRQ mapping functions

Git-commit: c62e98bdaa701fa1044b38d118d85950bda8eb85
Patch-mainline: v4.13-rc1
References: fate#326572

struct pci_host_bridge gained hooks to map/swizzle IRQs, so that the IRQ
mapping can be done automatically by PCI core code through the
pci_assign_irq() function instead of resorting to arch-specific
implementation callbacks to carry out the same task which force PCI host
bridge drivers implementation to implement per-arch kludges to carry out a
task that is inherently architecture agnostic.

Add map/swizzle IRQs hooks to the xgene PCI host driver to move the IRQ
allocation into core code and stop relying on arch-specific callbacks.

Tested-by: Khuong Dinh <kdinh@apm.com>	# with e1000e
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 drivers/pci/host/pci-xgene.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 262bedf026c1..bd897479a215 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -678,6 +678,8 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
 	bridge->sysdata = port;
 	bridge->busnr = 0;
 	bridge->ops = &xgene_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)
-- 
2.11.0