diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index b81a593aefb20193a3a5c69a0238dc1620aa330d..8bf6bb93dc790ef90fed82c8efb903f090e7fc7c 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -272,7 +272,7 @@ static void tilcdc_crtc_set_clk(struct drm_crtc *crtc)
 				LCDC_V2_CORE_CLK_EN);
 }
 
-uint tilcdc_mode_hvtotal(const struct drm_display_mode *mode)
+static uint tilcdc_mode_hvtotal(const struct drm_display_mode *mode)
 {
 	return (uint) div_u64(1000llu * mode->htotal * mode->vtotal,
 			      mode->clock);