diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c4d8bb7..3bfcf18 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10224,7 +10224,7 @@ int intel_dotclock_calculate(int link_freq,
 	if (!m_n->link_n)
 		return 0;
 
-	return div_u64((u64)m_n->link_m * link_freq, m_n->link_n);
+	return div_u64(mul_u32_u32(m_n->link_m, link_freq), m_n->link_n);
 }
 
 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 0cc999f..a79a759 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1385,7 +1385,7 @@ intel_tv_get_modes(struct drm_connector *connector)
 			mode_ptr->vsync_end = mode_ptr->vsync_start  + 1;
 		mode_ptr->vtotal = vactive_s + 33;
 
-		tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
+		tmp = mul_u32_u32(tv_mode->refresh, mode_ptr->vtotal);
 		tmp *= mode_ptr->htotal;
 		tmp = div_u64(tmp, 1000000);
 		mode_ptr->clock = (int) tmp;