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31fa25f100
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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.