Samson Tam 7ae0caf348 drm/amd/display: fix underflow in some two display subvp/non-subvp configs
[Why]
In two display configuration, switching between subvp and non-subvp
 may cause underflow because it moves an existing pipe between
 displays

[How]
Create helper function for applying pipe split flags
Apply pipe split flags prior to deciding on subvp
During subvp check, do not merge pipes, so it can retain previous
 pipe configuration
Add check for prev odm pipe in subvp check
For single display subvp case, use same odm policy for phantom pipes
 as main subvp pipe

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-09 21:51:25 -04:00
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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.
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