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authorWill Deacon <will.deacon@arm.com>2014-06-25 11:29:12 +0100
committerWill Deacon <will.deacon@arm.com>2014-07-03 15:50:22 +0100
commit44680eedf9409daf0fed618ae101f35d1f83d1a4 (patch)
tree5951a5e3af529803ead15a7885a12f0008fabb70 /arch
parentd0948945638635487111d0851218080e81de5104 (diff)
downloadop-kernel-dev-44680eedf9409daf0fed618ae101f35d1f83d1a4.zip
op-kernel-dev-44680eedf9409daf0fed618ae101f35d1f83d1a4.tar.gz
iommu/arm-smmu: remove support for chained SMMUs
The ARM SMMU driver has supported chained SMMUs (i.e. SMMUs connected back-to-back in series) via the smmu-parent property in device tree. This was in anticipation of somebody building such a configuration, however that seems not to be the case. This patch removes the unused chained SMMU hack from the driver. We can consider adding it back later if somebody decided they need it, but for the time being it's just pointless mess that we're carrying in mainline. Removal of the feature also makes migration to the generic IOMMU bindings easier. Signed-off-by: Will Deacon <will.deacon@arm.com>
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