From 0e7d37adbe45404a76d05d4ef11544f23cf639dd Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 7 Nov 2014 15:26:18 +0000
Subject: [PATCH] iommu/arm-smmu: Play nice on non-ARM/SMMU systems

Currently the driver registers IOMMU bus operations for all busses even
if no ARM SMMU is present on a system. Depending on the driver probing
order this prevents the driver for the real IOMMU to register itself as
the bus-wide IOMMU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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