[Intel-gfx] [RFC 16/30] drm/i915: disable DDI on intel_dp_link_down

[Paulo Zanoni]

From: Paulo Zanoni <paulo.r.zanoni at intel.com>

It requires a full disable of everything.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 3c6b94c..e59d676 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2004,6 +2004,11 @@ intel_dp_link_down(struct intel_dp *intel_dp)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t DP = intel_dp->DP;
 
+	if (IS_HASWELL(dev)) {
+		intel_ddi_disable(&intel_dp->base.base);
+		return;
+	}
+
 	if ((I915_READ(intel_dp->output_reg) & DP_PORT_EN) == 0)
 		return;
 
-- 
1.7.11.2