diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index fee54169493b..79625bd9361a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -638,9 +638,12 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct intel_crtc *intel_crtc = to_intel_crtc(crtc); dp_priv->DP = (DP_VOLTAGE_0_4 | - DP_PRE_EMPHASIS_0 | - DP_SYNC_VS_HIGH | - DP_SYNC_HS_HIGH); + DP_PRE_EMPHASIS_0); + + if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) + dp_priv->DP |= DP_SYNC_HS_HIGH; + if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) + dp_priv->DP |= DP_SYNC_VS_HIGH; if (HAS_PCH_CPT(dev) && !IS_eDP(intel_encoder)) dp_priv->DP |= DP_LINK_TRAIN_OFF_CPT; |