diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c

index f737960..b1f8164 100644

--- a/drivers/gpu/drm/i915/i915_drv.c

+++ b/drivers/gpu/drm/i915/i915_drv.c

@@ -509,6 +509,8 @@ i915_pci_remove(struct pci_dev *pdev)

 {

 	struct drm_device *dev = pci_get_drvdata(pdev);

+	pci_disable_device(pdev); /* core did previous enable */

+

 	drm_put_dev(dev);

 }

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c

index 300f64b..2e3db37 100644

--- a/drivers/gpu/drm/i915/intel_dp.c

+++ b/drivers/gpu/drm/i915/intel_dp.c

@@ -795,7 +795,8 @@ static bool ironlake_edp_panel_on (struct intel_dp *intel_dp)

 {

 	struct drm_device *dev = intel_dp->base.base.dev;

 	struct drm_i915_private *dev_priv = dev->dev_private;

-	u32 pp, idle_on_mask = PP_ON | PP_SEQUENCE_STATE_ON_IDLE;

+	u32 pp, idle_on = PP_ON | PP_SEQUENCE_STATE_ON_IDLE;

+	u32 idle_on_mask = PP_ON | PP_SEQUENCE_STATE_MASK;

 	if (I915_READ(PCH_PP_STATUS) & PP_ON)

 		return true;

@@ -816,7 +817,7 @@ static bool ironlake_edp_panel_on (struct intel_dp *intel_dp)

 	 */

 	msleep(300);

-	if (wait_for((I915_READ(PCH_PP_STATUS) & idle_on_mask) == idle_on_mask,

+	if (wait_for((I915_READ(PCH_PP_STATUS) & idle_on_mask) == idle_on,

 		     5000))

 		DRM_ERROR("panel on wait timed out: 0x%08x\n",

 			  I915_READ(PCH_PP_STATUS));

@@ -922,6 +923,7 @@ static void intel_dp_prepare(struct drm_encoder *encoder)

 	if (is_edp(intel_dp)) {

 		ironlake_edp_backlight_off(dev);

+		ironlake_edp_panel_off(dev);

 		ironlake_edp_panel_on(intel_dp);

 		if (!is_pch_edp(intel_dp))

 			ironlake_edp_pll_on(encoder);