Peterson Guo 63e7ee677c drm/amd/display: Add a left edge pixel if in YCbCr422 or YCbCr420 and odm
[WHY]
On some cards when odm is used, the monitor will have 2 separate pipes
split vertically. When compression is used on the YCbCr colour space on
the second pipe to have correct colours, we need to read a pixel from the
end of first pipe to accurately display colours. Hardware was programmed
properly to account for this extra pixel but it was not calculated
properly in software causing a split screen on some monitors.

[HOW]
The fix adjusts the second pipe's viewport and timings if the pixel
encoding is YCbCr422 or YCbCr420.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: George Shen <george.shen@amd.com>
Signed-off-by: Peterson Guo <peterson.guo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-12-02 18:35:16 -05:00
2024-09-01 20:43:24 -07:00
2024-12-01 14:28:56 -08:00
2024-03-18 03:36:32 -06:00

Linux kernel
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There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
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