Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.80 2022-07-08T14:31:24+00:00 2022-07-08T14:31:24+00:00 Robin Murphy robin.murphy@arm.com 2022-07-07T17:30:44+00:00 urn:sha1:f99e689181ea8ede795f2fcd8d658207920469dd Conditional registration is a problem for other subsystems which may unwittingly try to interact with host1x_context_device_bus_type in an uninitialised state on non-Tegra platforms. A look under /sys/bus on a typical system already reveals plenty of entries from enabled but otherwise irrelevant configs, so lets keep things simple and register our context bus unconditionally too. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 2022-06-01T09:50:42+00:00 Mikko Perttunen mperttunen@nvidia.com 2022-05-16T08:52:51+00:00 urn:sha1:597b89d30b42dcc8e6b262e6876b42dde66f97f0 The context bus is a "dummy" bus that contains struct devices that correspond to IOMMU contexts assigned through Host1x to processes. Even when host1x itself is built as a module, the bus is registered in built-in code so that the built-in ARM SMMU driver is able to reference it. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>