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b06078de41
We have to check dma-buf reservation objects of our framebuffers before we use them. Otherwise, another driver might be writing on the same buffer which we are using. This would cause visible tearing effects on display. We can use existing atomic helper functions to solve this problem. Signed-off-by: Emre Ucan <eucan@de.adit-jv.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.