The old epoch counter was left uninited, so the function returned a
changed state always.
While at it debug print the old epoch counter as well.
Fixes: 35205ee9ba46 ("drm/i915: Send hotplug event if edid had changed")
Cc: Kunal Joshi <kunal1.joshi@xxxxxxxxx>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_hotplug.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 80bcfff032e9..3f1d7b804a66 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -288,6 +288,7 @@ intel_encoder_hotplug(struct intel_encoder *encoder,
drm_WARN_ON(dev, !mutex_is_locked(&dev->mode_config.mutex));
old_status = connector->base.status;
+ old_epoch_counter = connector->base.epoch_counter;
connector->base.status =
drm_helper_probe_detect(&connector->base, NULL, false);
@@ -296,11 +297,12 @@ intel_encoder_hotplug(struct intel_encoder *encoder,
ret = true;
if (ret) {
- DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s(epoch counter %llu)\n",
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
connector->base.base.id,
connector->base.name,
drm_get_connector_status_name(old_status),
drm_get_connector_status_name(connector->base.status),
+ old_epoch_counter,
connector->base.epoch_counter);
return INTEL_HOTPLUG_CHANGED;
}
--
2.23.1
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