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987068fcbd
The PCI msi-map code is already doing double-duty translating IDs and retrieving MSI parents, which unsurprisingly is the same functionality we need for the identically-formatted PCI iommu-map property. Drag the core parsing routine up yet another layer into the general OF-PCI code, and further generalise it for either kind of lookup in either flavour of map property. Acked-by: Rob Herring <robh+dt@kernel.org> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>