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[1/2] iommu/tegra: gart: Do not register with bus

Message ID 1422027472-31467-2-git-send-email-thierry.reding@gmail.com
State Accepted, archived
Headers show

Commit Message

Thierry Reding Jan. 23, 2015, 3:37 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

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>
---
 drivers/iommu/tegra-gart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index f722a0c466cf..10fc32dabb0a 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -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;
 }