On the HPD (Hot Plug Detect) path this change makes use of the connector status to notify all connectors, rather than just first one found that suffered a status change.
Similarly on the polling side, this also takes into consideration sending per-connector udev hotplug events. Signed-off-by: Marius Vlad <[email protected]> --- drivers/gpu/drm/drm_probe_helper.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index f0474368e98d..63960f589b6b 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -861,8 +861,14 @@ static void output_poll_execute(struct work_struct *work) mutex_unlock(&dev->mode_config.mutex); out: - if (changed) - drm_kms_helper_hotplug_event(dev); + if (changed) { + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (connector->status_changed) + drm_kms_helper_connector_hotplug_event(connector); + } + drm_connector_list_iter_end(&conn_iter); + } if (repoll) schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD); @@ -1124,10 +1130,16 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev) drm_connector_list_iter_end(&conn_iter); mutex_unlock(&dev->mode_config.mutex); - if (changed == 1) + if (changed == 1) { drm_kms_helper_connector_hotplug_event(first_changed_connector); - else if (changed > 0) - drm_kms_helper_hotplug_event(dev); + } else if (changed > 0) { + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (connector->status_changed) + drm_kms_helper_connector_hotplug_event(connector); + } + drm_connector_list_iter_end(&conn_iter); + } if (first_changed_connector) drm_connector_put(first_changed_connector); -- 2.47.2
