iommu/tegra: gart: Do not register with bus
authorThierry Reding <treding@nvidia.com>
Fri, 23 Jan 2015 15:37:51 +0000 (16:37 +0100)
committerJoerg Roedel <jroedel@suse.de>
Mon, 26 Jan 2015 12:41:07 +0000 (13:41 +0100)
The driver currently doesn't work as expected and causes existing setups
with Tegra20 to break after commit df06b759f2cf ("drm/tegra: Add IOMMU
support"). To restore these setups, do not register the operations with
the platform bus for now. Fixing this properly will involve non-trivial
changes to the DRM driver, which are unlikely to be accepted at this
point in the release cycle.

Reported-by: Misha Komarovskiy <zombah@gmail.com>
Reported-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Misha Komarovskiy <zombah@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/tegra-gart.c

index f722a0c466cfee07de8f982a9c223478d1765c25..10fc32dabb0ac5e0dcf71ab1ff3631213cab3461 100644 (file)
@@ -395,7 +395,7 @@ static int tegra_gart_probe(struct platform_device *pdev)
        do_gart_setup(gart, NULL);
 
        gart_handle = gart;
-       bus_set_iommu(&platform_bus_type, &gart_iommu_ops);
+
        return 0;
 }