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drm/i915/dp_link_training: Add helper to reset link recovery state

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Add link_recovery_reset() to make it explicit when link recovery is no
longer needed and the recovery state can be cleared.

This also prepares for replacing the sequential link training failure
counter with an enum in a follow-up change.

Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260601093836.3057345-15-imre.deak@intel.com
This commit is contained in:
Imre Deak
2026-06-01 12:38:27 +03:00
parent 9bd4767870
commit 1536edeee0
1 changed files with 14 additions and 2 deletions
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16
drivers/gpu/drm/i915/display/intel_dp_link_training.c
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@@ -1314,6 +1314,18 @@ link_recovery_mark_train_failure(struct intel_dp_link_training *link_training)
return link_recovery_autoretrain_allowed(link_training);
}
/**
* link_recovery_reset - reset the link recovery state
* @link_training: link training state
*
* Reset the link recovery state to indicate that no link recovery is
* required.
*/
static void link_recovery_reset(struct intel_dp_link_training *link_training)
{
link_training->seq_train_failures = 0;
}
/**
* intel_dp_stop_link_train - stop link training
* @intel_dp: DP struct
@@ -1878,7 +1890,7 @@ void intel_dp_start_link_train(struct intel_atomic_state *state,
link_training->force_train_failure--;
lt_dbg(intel_dp, DP_PHY_DPRX, "Forcing link training failure\n");
} else if (passed) {
link_training->seq_train_failures = 0;
link_recovery_reset(link_training);
return;
}
@@ -2543,7 +2555,7 @@ void intel_dp_link_training_debugfs_add(struct intel_connector *connector)
void intel_dp_link_training_reset(struct intel_dp_link_training *link_training)
{
link_training->retrain_disabled = false;
link_training->seq_train_failures = 0;
link_recovery_reset(link_training);
}
struct intel_dp_link_training *intel_dp_link_training_init(struct intel_dp *intel_dp)