drm/amd/display: prevent assert on error of 1 in calc_freesync_range

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/modules/freesync/freesync.c

@@ -422,12 +422,14 @@ static void calc_freesync_range(struct core_freesync *core_freesync,
 
 	/* In case of 4k free sync monitor, vmin or vmax cannot be less than vtotal */
 	if (state->freesync_range.vmin < vtotal) {
-		ASSERT(false);
+		/* Error of 1 is permissible */
+		ASSERT((state->freesync_range.vmin + 1) >= vtotal);
 		state->freesync_range.vmin = vtotal;
 	}
 
 	if (state->freesync_range.vmax < vtotal) {
-		ASSERT(false);
+		/* Error of 1 is permissible */
+		ASSERT((state->freesync_range.vmax + 1) >= vtotal);
 		state->freesync_range.vmax = vtotal;
 	}