drm/i915: Create intel_dp->prepare_link_retrain() hook
In order to prepare for a link training with DDI, the state machine
would call intel_ddi_prepare_link_retrain(). To remove the dependency to
the hardware information, replace that direct call with a callback.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445594525-7174-7-git-send-email-ander.conselvan.de.oliveira@intel.com
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d129507..dd49286 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5731,6 +5731,9 @@
else
intel_dp->get_aux_send_ctl = i9xx_get_aux_send_ctl;
+ if (HAS_DDI(dev))
+ intel_dp->prepare_link_retrain = intel_ddi_prepare_link_retrain;
+
/* Preserve the current hw state. */
intel_dp->DP = I915_READ(intel_dp->output_reg);
intel_dp->attached_connector = intel_connector;