PCI: generic: Drop pci_fixup_irqs()

Since, through struct pci_host_bridge.map/swizzle_irq hooks, IRQs are now
allocated in the pci_assign_irq() callback automatically, PCI host bridge
drivers can stop relying on pci_fixup_irqs() for IRQ allocation.

Drop pci_fixup_irqs() usage from PCI host-common bridge driver.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Will Deacon <will.deacon@arm.com>

drivers/pci/host/pci-host-common.c

@@ -149,6 +149,8 @@ int pci_host_common_probe(struct platform_device *pdev,
 	bridge->sysdata = cfg;
 	bridge->busnr = cfg->busr.start;
 	bridge->ops = &ops->pci_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) {
@@ -158,10 +160,6 @@ int pci_host_common_probe(struct platform_device *pdev,
 
 	bus = bridge->bus;
 
-#ifdef CONFIG_ARM
-	pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
-#endif
-
 	/*
 	 * We insert PCI resources into the iomem_resource and
 	 * ioport_resource trees in either pci_bus_claim_resources()