[PATCH 1/3] drm/amd/display: Fix and simplify apply_below_the_range()

[Mario Kleiner]

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 at gmail.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas at amd.com>
---
 drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
index 71274683da04..e56543c36eba 100644
--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
+++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
@@ -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 =
-- 
2.20.1