diff --git a/msm/dsi/dsi_display.c b/msm/dsi/dsi_display.c
index a2de644e83..84b0e919b9 100644
--- a/msm/dsi/dsi_display.c
+++ b/msm/dsi/dsi_display.c
@@ -8605,10 +8605,6 @@ static int dsi_display_set_roi(struct dsi_display *display,
 		if (!changed)
 			continue;
 
-		rc = dsi_ctrl_wait_for_cmd_mode_mdp_idle(ctrl->ctrl);
-		if (rc)
-			DSI_ERR("wait for cmd mode mdp idle failed rc = %d", rc);
-
 		/* re-program the ctrl with the timing based on the new roi */
 		rc = dsi_ctrl_timing_setup(ctrl->ctrl);
 		if (rc) {
diff --git a/msm/sde/sde_crtc.c b/msm/sde/sde_crtc.c
index e598d26549..6a3d6f3e1e 100644
--- a/msm/sde/sde_crtc.c
+++ b/msm/sde/sde_crtc.c
@@ -5043,13 +5043,21 @@ static int _sde_crtc_vblank_enable(
 
 static void _sde_crtc_reserve_resource(struct drm_crtc *crtc, struct drm_connector *conn)
 {
+	struct sde_kms *kms;
+	struct drm_encoder *encoder;
 	u32 min_transfer_time = 0, lm_count = 1;
 	u64 mode_clock_hz = 0, updated_fps = 0, topology_id;
-	struct drm_encoder *encoder;
+	u32 inf_factor = 105, lm_width, num_bubbles = 0;
 
 	if (!crtc || !conn)
 		return;
 
+	kms = _sde_crtc_get_kms(crtc);
+	if (!kms || !kms->catalog) {
+		SDE_ERROR("invalid kms\n");
+		return;
+	}
+
 	encoder = conn->state->best_encoder;
 	if (!sde_encoder_is_built_in_display(encoder))
 		return;
@@ -5063,17 +5071,31 @@ static void _sde_crtc_reserve_resource(struct drm_crtc *crtc, struct drm_connect
 		updated_fps = drm_mode_vrefresh(&crtc->mode);
 
 	topology_id = sde_connector_get_topology_name(conn);
-	if (TOPOLOGY_DUALPIPE_MODE(topology_id))
+	if (TOPOLOGY_DUALPIPE_MODE(topology_id)) {
 		lm_count = 2;
-	else if (TOPOLOGY_QUADPIPE_MODE(topology_id))
+		if (SDE_HW_MAJOR(kms->catalog->hw_rev) == SDE_HW_MAJOR(SDE_HW_VER_A00))
+			num_bubbles = 40;
+	} else if (TOPOLOGY_QUADPIPE_MODE(topology_id)) {
 		lm_count = 4;
+		if (SDE_HW_MAJOR(kms->catalog->hw_rev) == SDE_HW_MAJOR(SDE_HW_VER_A00))
+			num_bubbles = 56;
+	}
+
+	if (SDE_HW_MAJOR(kms->catalog->hw_rev) == SDE_HW_MAJOR(SDE_HW_VER_900)
+			&& lm_count > 1)
+		num_bubbles = 30;
+
+	lm_width = (crtc->mode.hdisplay) / lm_count;
+	num_bubbles = mult_frac(num_bubbles, 100, lm_width);
+	inf_factor = max((100 + num_bubbles), inf_factor);
 
 	/* mode clock = [(h * v * fps * 1.05) / (num_lm)] */
-	mode_clock_hz = mult_frac(crtc->mode.htotal * crtc->mode.vtotal * updated_fps, 105, 100);
+	mode_clock_hz = mult_frac(crtc->mode.htotal * crtc->mode.vtotal * updated_fps,
+				inf_factor, 100);
 	mode_clock_hz = div_u64(mode_clock_hz, lm_count);
-	SDE_DEBUG("[%s] h=%d v=%d fps=%d lm=%d mode_clk=%u\n",
+	SDE_DEBUG("[%s] h=%d v=%d fps=%d lm=%d mode_clk=%u inf_factor=%u\n",
 			crtc->mode.name, crtc->mode.htotal, crtc->mode.vtotal,
-			updated_fps, lm_count, mode_clock_hz);
+			updated_fps, lm_count, mode_clock_hz, inf_factor);
 
 	sde_core_perf_crtc_reserve_res(crtc, mode_clock_hz);
 }