From 407dae1e4415acde2d9f48bb76361893c4653756 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Mon, 9 Oct 2017 09:00:49 +0200 Subject: [PATCH] PCI: aardvark: Move to struct pci_host_bridge IRQ mapping functions 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. 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 Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org # 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 89f4e3d..26ed0c0 100644 --- a/drivers/pci/host/pci-aardvark.c +++ b/drivers/pci/host/pci-aardvark.c @@ -935,6 +935,8 @@ 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) { -- 2.7.4