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3cdad0f1e8
When disable encoder, the encoder.crtc will be reference. In some case, for example show logo stage, if some config cause a full modeset, the encoder.crtc will be used before assigned a value, which will cause a NUll pointer issue. It's better to use drm_connector_state.crtc to avoid this issue. Change-Id: I0382eda8a7e25e15b06cefc08ec7be94cf8136ea Signed-off-by: Zhang Yubing <yubing.zhang@rock-chips.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.