openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915: use the new dp train delay helpers 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/intel_dp.c
View File

@ -1821,13 +1821,13 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
DRM_DEBUG_KMS("training pattern 1 signal levels %08x\n", DRM_DEBUG_KMS("training pattern 1 signal levels %08x\n",
signal_levels); signal_levels);
/* Set training pattern 1 */
if (!intel_dp_set_link_train(intel_dp, DP, if (!intel_dp_set_link_train(intel_dp, DP,
DP_TRAINING_PATTERN_1 | DP_TRAINING_PATTERN_1 |
DP_LINK_SCRAMBLING_DISABLE)) DP_LINK_SCRAMBLING_DISABLE))
break; 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)) { if (!intel_dp_get_link_status(intel_dp, link_status)) {
DRM_ERROR("failed to get link status\n"); DRM_ERROR("failed to get link status\n");
break; break;
@ -1910,7 +1910,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
DP_LINK_SCRAMBLING_DISABLE)) DP_LINK_SCRAMBLING_DISABLE))
break; break;
udelay(400); drm_dp_link_train_channel_eq_delay(intel_dp->dpcd);
if (!intel_dp_get_link_status(intel_dp, link_status)) if (!intel_dp_get_link_status(intel_dp, link_status))
break; break;