diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index bcd81f96fc7f3357bde6269b6b2bd2d12f50e3d0..27805a9ca877feadb743c57039e1cef084df5520 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -894,6 +894,7 @@ static void intel_dp_prepare(struct drm_encoder *encoder)
 	uint32_t dp_reg = I915_READ(intel_dp->output_reg);
 
 	if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) {
+		ironlake_edp_panel_off(dev);
 		ironlake_edp_backlight_off(dev);
 		ironlake_edp_panel_vdd_on(dev);
 		ironlake_edp_pll_on(encoder);