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drm/amd/display: Fix and simplify apply_below_the_range() 

The comparison of inserted_frame_duration_in_us against a
duration calculated from max_refresh_in_uhz is both wrong
in its math and not needed, as the min_duration_in_us value
is already cached in in_out_vrr for reuse. No need to
recalculate it wrongly at each invocation.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Kleiner 2019-04-26 23:40:14 +02:00 committed by Alex Deucher
parent 7267a1a974
commit dc4a9049f0
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/amd/display/modules/freesync/freesync.c
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@ -437,10 +437,8 @@ static void apply_below_the_range(struct core_freesync *core_freesync,
inserted_frame_duration_in_us = last_render_time_in_us /
frames_to_insert;
if (inserted_frame_duration_in_us <
(1000000 / in_out_vrr->max_refresh_in_uhz))
inserted_frame_duration_in_us =
(1000000 / in_out_vrr->max_refresh_in_uhz);
if (inserted_frame_duration_in_us < in_out_vrr->min_duration_in_us)
inserted_frame_duration_in_us = in_out_vrr->min_duration_in_us;
/* Cache the calculated variables */
in_out_vrr->btr.inserted_duration_in_us =