of/irq: Break out msi-map lookup (again)

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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>

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Robin Murphy 2016-09-12 17:13:40 +01:00 • committed by Will Deacon

parent 6ec2392ce0

commit 987068fcbd

3 changed files with 116 additions and 74 deletions

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78

drivers/of/irq.c

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102

drivers/of/of_pci.c

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10

include/linux/of_pci.h

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