Increase interrupt cells in generic_pcie_fdt_route_interrupt

ARM GIC specification in device trees use 3 cells, so the current
limit of 2 causes the last cell to be dropped. This in turn can
cause the interrupt polarity and trigger settings to be incorrect.

Increase the limit to 4 which should handle all reasonable cases.
This fixes issues seen in QEMU when registering PCI interrupts.

This commit is contained in:

Jayachandran C.

2016-12-12 15:17:56 +00:00

parent 8a030e9c6e

commit 7d9082cafa

1 changed files with 1 additions and 1 deletions

									
										sys/dev/pci/pci_host_generic_fdt.c
									
		+1
		-1
	
												View File
												
				@@ -269,7 +269,7 @@ generic_pcie_fdt_route_interrupt(device_t bus, device_t dev, int pin)

				{

					struct generic_pcie_fdt_softc *sc;

					struct ofw_pci_register reg;

					uint32_t pintr, mintr[2];

					uint32_t pintr, mintr[4];

					phandle_t iparent;

					int intrcells;