diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 9 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 268043f65dd8..52de4110c8e9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4168,8 +4168,7 @@ static void ironlake_pch_enable(struct drm_crtc *crtc) temp &= ~(TRANS_DP_PORT_SEL_MASK | TRANS_DP_SYNC_MASK | TRANS_DP_BPC_MASK); - temp |= (TRANS_DP_OUTPUT_ENABLE | - TRANS_DP_ENH_FRAMING); + temp |= TRANS_DP_OUTPUT_ENABLE; temp |= bpc << 9; /* same format but at 11:9 */ if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 227e77ed879b..d86e1f951666 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1582,7 +1582,16 @@ static void intel_dp_prepare(struct intel_encoder *encoder) intel_dp->DP |= crtc->pipe << 29; } else if (HAS_PCH_CPT(dev) && port != PORT_A) { + u32 trans_dp; + intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT; + + trans_dp = I915_READ(TRANS_DP_CTL(crtc->pipe)); + if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) + trans_dp |= TRANS_DP_ENH_FRAMING; + else + trans_dp &= ~TRANS_DP_ENH_FRAMING; + I915_WRITE(TRANS_DP_CTL(crtc->pipe), trans_dp); } else { if (!HAS_PCH_SPLIT(dev) && !IS_VALLEYVIEW(dev)) intel_dp->DP |= intel_dp->color_range; |