drm/amd/display: Re-check seamless boot can be enabled or not

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[Why]
If the seamless boot feature has already been enabled, and
dc_commit_streams is called again before receiving a flip, the
driver will adjust the engine clock without turning off the screen,
which will cause garbage to occur. However, in reality, the Pixel
Clock from the first dc_commit_streams and the second dc_commit_streams
are different.

[How]
If the apply seamless boot flag in the previous stream has not been
cleared, and dc_commit_streams is received again, we need to recheck
whether seamless boot should be disabled

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Paul Hsieh <Paul.Hsieh@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Paul Hsieh 2025-10-30 12:17:53 +08:00 • committed by Alex Deucher

parent c798836bb7

commit d24203bb62

1 changed files with 8 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/core/dc.c

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