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0d4b4253ad
[Why] Incorrect encoder assignments were being used while applying a new state to hardware. (1) When committing a new state to hardware requires resetting the back-end, the encoder assignments of the current or old state should be used when disabling the back-end; and the encoder assignments for the next or new state should be used when re-enabling the back-end. (2) Link training on hot plug could take over an encoder already in use by another stream without first disabling it. [How] (1) Introduce a resource context 'link_enc_cfg_context' which includes: - a mode to indicate when transitioning from current to next state. - transient encoder assignments to use during this state transition. Update the encoder configuration interface to respond to queries about encoder assignment based on the mode of operation. (2) Check if an encoder is already in use before attempting to perform link training on hot plug. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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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.