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| author | Ard Biesheuvel <ardb@kernel.org> | 2019-12-19 13:03:48 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-12-23 14:06:05 +0100 |
| commit | d3daf66621b9dd5749d4661ace74afb84d3d465e (patch) | |
| tree | 1e92973a32542de9a277ce3a51944f3d2bdb423c /drivers/iommu/arm-smmu-v3.c | |
| parent | iommu/arm-smmu-v3: Unregister IOMMU and bus ops on device removal (diff) | |
| download | linux-d3daf66621b9dd5749d4661ace74afb84d3d465e.tar.xz linux-d3daf66621b9dd5749d4661ace74afb84d3d465e.zip | |
iommu/arm-smmu: Support SMMU module probing from the IORT
Add support for SMMU drivers built as modules to the ACPI/IORT device
probing path, by deferring the probe of the master if the SMMU driver is
known to exist but has not been loaded yet. Given that the IORT code
registers a platform device for each SMMU that it discovers, we can
easily trigger the udev based autoloading of the SMMU drivers by making
the platform device identifier part of the module alias.
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: John Garry <john.garry@huawei.com> # only manual smmu ko loading
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: John Garry <john.garry@huawei.com> # smmu v3
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/arm-smmu-v3.c')
| -rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 46160a2fec3e..da9474a02668 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -3734,4 +3734,5 @@ module_platform_driver(arm_smmu_driver); MODULE_DESCRIPTION("IOMMU API for ARM architected SMMUv3 implementations"); MODULE_AUTHOR("Will Deacon <will.deacon@arm.com>"); +MODULE_ALIAS("platform:arm-smmu-v3"); MODULE_LICENSE("GPL v2"); |