drm/i915: Turn force VDD back off when panel running in intel_dp_dpms

The VDD force bit is turned on before touching the panel, but if it
was enabled, there was no call to turn it back off. Add a call.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f80ff327d873..7e59f060a03b 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1088,7 +1088,8 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
                         ironlake_edp_panel_on(intel_dp);
                         ironlake_edp_panel_vdd_off(intel_dp);
                         intel_dp_complete_link_train(intel_dp);
-                }
+                } else
+                        ironlake_edp_panel_vdd_off(intel_dp);
                 if (is_edp(intel_dp))
                         ironlake_edp_backlight_on(dev);
         }