A crtc modeset lock was added for link retraining but
intel_dp_retrain_link() knows to take the necessary locks since
commit c85d200e8321 ("drm/i915: Move SST DP link retraining into the
->post_hotplug() hook")
v2: Drop AUX power domain reference in the early return path
Fixes: c85d200e8321 ("drm/i915: Move SST DP link retraining into the ->post_hotplug() hook")
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 09229fc66dec..ef28cc0f122c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5079,8 +5079,15 @@ intel_dp_long_pulse(struct intel_connector *connector,
* Some external monitors do not signal loss of link synchronization
* with an IRQ_HPD, so force a link status check.
*/
- if (!intel_dp_is_edp(intel_dp))
- intel_dp_retrain_link(encoder, ctx);
+ if (!intel_dp_is_edp(intel_dp)) {
+ int ret;
+
+ ret = intel_dp_retrain_link(encoder, ctx);
+ if (ret) {
+ intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
+ return ret;
+ }
+ }
/*
* Clearing NACK and defer counts to get their exact values
@@ -5130,19 +5137,8 @@ intel_dp_detect(struct drm_connector *connector,
connector->base.id, connector->name);
/* If full detect is not performed yet, do a full detect */
- if (!intel_dp->detect_done) {
- struct drm_crtc *crtc;
- int ret;
-
- crtc = connector->state->crtc;
- if (crtc) {
- ret = drm_modeset_lock(&crtc->mutex, ctx);
- if (ret)
- return ret;
- }
-
+ if (!intel_dp->detect_done)
status = intel_dp_long_pulse(intel_dp->attached_connector, ctx);
- }
intel_dp->detect_done = false;
--
2.14.1
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