From: Daniel Vetter Date: Thu, 18 Oct 2012 08:15:30 +0000 (+0200) Subject: drm/i915: use the new dp train delay helpers X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a7c9655fdd89fae1749c2e5beadae8b7d32093af;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index cd23ffadfda1..3cb180e38ca1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -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;