drm/amd/display: more liberal vmin/vmax update for freesync

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commit f1c6be3999 upstream.

[Why]
FAMS2 expects vmin/vmax to be updated in the case when freesync is
off, but supported. But we only update it when freesync is enabled.

[How]
Change the vsync handler such that dc_stream_adjust_vmin_vmax() its called
irrespective of whether freesync is enabled. If freesync is supported,
then there is no harm in updating vmin/vmax registers.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3546
Reviewed-by: ChiaHsuan Chung <chiahsuan.chung@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit cfb2d41831)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Aurabindo Pillai 2025-04-16 11:26:54 -04:00 • committed by Greg Kroah-Hartman

parent 12125f7d9c

commit c8a91debb0

1 changed files with 11 additions and 5 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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