gpu: host1x: Do not link logical devices to DT nodes

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Logical devices created by the host1x bus infrastructure don't need to
be associated with a device tree node. Doing so will cause the driver
core to attempt to hook up IOMMU operations and fail because it is not
a real device.

However, for backwards-compatibility, we need to provide various OF_*
uevent variables that were previously provided by of_device_uevent() and
which are parsed by libdrm in userspace when querying the available
devices. Do this by implementing a uevent callback for the host1x bus.

Signed-off-by: Thierry Reding <treding@nvidia.com>

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Thierry Reding 2019-06-05 10:47:16 +02:00

parent 1e390478cf

commit 31fa25f100

1 changed files with 31 additions and 1 deletions

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32

drivers/gpu/host1x/bus.c

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