Instead of checking for !CPT, check for IBX to make it clearer that
this is a IBX-specific workaround. No functional change because we
smash the PPT PCH into the HAS_PCH_CPT check and atm DP isn't enabled
on the haswell LPT PCH yet.
See Bspec Vol 3, Part 3, Section 4.[3-5].1 about DP[BCD], bit 30 for
details of this workaround.
Signed-Off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
---
drivers/gpu/drm/i915/intel_dp.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 9b2effc..df3b027 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1910,7 +1910,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
DP |= DP_LINK_TRAIN_OFF;
}
- if (!HAS_PCH_CPT(dev) &&
+ if (HAS_PCH_IBX(dev) &&
I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) {
struct drm_crtc *crtc = intel_dp->base.base.crtc;
--
1.7.7.5
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