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drm/i915: use the new dp train delay helpers

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Only really required for dp 1.2. I've hoped this would help with some
link training woes I'm fighting, but alas those are only dp 1.1
devices.

Also move a comment that went misplaced in the recent refactorings to
the right spot again.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter
2012-10-18 10:15:30 +02:00
parent 1a644cd47c
commit a7c9655fdd
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/intel_dp.c
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@@ -1821,13 +1821,13 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
DRM_DEBUG_KMS("training pattern 1 signal levels %08x\n",
signal_levels);
/* Set training pattern 1 */
if (!intel_dp_set_link_train(intel_dp, DP,
DP_TRAINING_PATTERN_1 |
DP_LINK_SCRAMBLING_DISABLE))
break;
/* Set training pattern 1 */
udelay(100);
drm_dp_link_train_clock_recovery_delay(intel_dp->dpcd);
if (!intel_dp_get_link_status(intel_dp, link_status)) {
DRM_ERROR("failed to get link status\n");
break;
@@ -1910,7 +1910,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
DP_LINK_SCRAMBLING_DISABLE))
break;
udelay(400);
drm_dp_link_train_channel_eq_delay(intel_dp->dpcd);
if (!intel_dp_get_link_status(intel_dp, link_status))
break;