diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
index 1d9d83d7b99e..72f043732f93 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -80,7 +80,7 @@ static u64 _dpu_core_perf_calc_clk(struct dpu_kms *kms,
 
 	mode = &state->adjusted_mode;
 
-	crtc_clk = mode->vtotal * mode->hdisplay * drm_mode_vrefresh(mode);
+	crtc_clk = (u64)mode->vtotal * mode->hdisplay * drm_mode_vrefresh(mode);
 
 	drm_atomic_crtc_for_each_plane(plane, crtc) {
 		pstate = to_dpu_plane_state(plane->state);