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* [Intel-gfx] [PATCH] i915/display/hotplug: use drm_kms_helper_connector_hotplug_event()
@ 2023-06-20 18:12 Simon Ser
  2023-06-21  0:03 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
                   ` (2 more replies)
  0 siblings, 3 replies; 9+ messages in thread
From: Simon Ser @ 2023-06-20 18:12 UTC (permalink / raw)
  To: intel-gfx; +Cc: Jani Nikula, Lucas De Marchi, Rodrigo Vivi

This adds more information to the hotplug uevent and lets user-space
know that it's about a particular connector only.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hotplug.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 1160fa20433b..605c6e05a169 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -376,6 +376,7 @@ static void i915_hotplug_work_func(struct work_struct *work)
 	u32 changed = 0, retry = 0;
 	u32 hpd_event_bits;
 	u32 hpd_retry_bits;
+	struct drm_connector *first_changed_connector = NULL;
 
 	mutex_lock(&dev_priv->drm.mode_config.mutex);
 	drm_dbg_kms(&dev_priv->drm, "running encoder hotplug functions\n");
@@ -428,6 +429,10 @@ static void i915_hotplug_work_func(struct work_struct *work)
 				break;
 			case INTEL_HOTPLUG_CHANGED:
 				changed |= hpd_bit;
+				if (!first_changed_connector) {
+					drm_connector_get(&connector->base);
+					first_changed_connector = &connector->base;
+				}
 				break;
 			case INTEL_HOTPLUG_RETRY:
 				retry |= hpd_bit;
@@ -438,9 +443,14 @@ static void i915_hotplug_work_func(struct work_struct *work)
 	drm_connector_list_iter_end(&conn_iter);
 	mutex_unlock(&dev_priv->drm.mode_config.mutex);
 
-	if (changed)
+	if (hweight32(changed) == 1)
+		drm_kms_helper_connector_hotplug_event(first_changed_connector);
+	else if (changed)
 		drm_kms_helper_hotplug_event(&dev_priv->drm);
 
+	if (first_changed_connector)
+		drm_connector_put(first_changed_connector);
+
 	/* Remove shared HPD pins that have changed */
 	retry &= ~changed;
 	if (retry) {
-- 
2.41.0



^ permalink raw reply related	[flat|nested] 9+ messages in thread
end of thread, other threads:[~2023-06-23  8:36 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-06-20 18:12 [Intel-gfx] [PATCH] i915/display/hotplug: use drm_kms_helper_connector_hotplug_event() Simon Ser
2023-06-21  0:03 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
2023-06-21  9:17 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2023-06-21 12:05 ` [Intel-gfx] [PATCH] " Jani Nikula
2023-06-21 12:07   ` Simon Ser
2023-06-21 12:11     ` Jani Nikula
2023-06-21 12:14       ` Simon Ser
2023-06-21 12:26         ` Jani Nikula
2023-06-23  8:36           ` Simon Ser

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