diff options
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 51 | ||||
| -rw-r--r-- | include/drm/drm_crtc.h | 1 |
2 files changed, 43 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 760a67534c6..9adbd2b311d 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -960,9 +960,9 @@ static void output_poll_execute(struct work_struct *work) mutex_lock(&dev->mode_config.mutex); list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - /* if this is HPD or polled don't check it - - TV out for instance */ - if (!connector->polled) + /* Ignore HPD capable connectors and connectors where we don't + * want any hotplug detection at all for polling. */ + if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD) continue; else if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT)) @@ -972,8 +972,7 @@ static void output_poll_execute(struct work_struct *work) /* if we are connected and don't want to poll for disconnect skip it */ if (old_status == connector_status_connected && - !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT) && - !(connector->polled & DRM_CONNECTOR_POLL_HPD)) + !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT)) continue; connector->status = connector->funcs->detect(connector, false); @@ -1020,9 +1019,12 @@ void drm_kms_helper_poll_enable(struct drm_device *dev) } EXPORT_SYMBOL(drm_kms_helper_poll_enable); +static void hpd_irq_event_execute(struct work_struct *work); + void drm_kms_helper_poll_init(struct drm_device *dev) { INIT_DELAYED_WORK(&dev->mode_config.output_poll_work, output_poll_execute); + INIT_DELAYED_WORK(&dev->mode_config.hpd_irq_work, hpd_irq_event_execute); dev->mode_config.poll_enabled = true; drm_kms_helper_poll_enable(dev); @@ -1035,14 +1037,45 @@ void drm_kms_helper_poll_fini(struct drm_device *dev) } EXPORT_SYMBOL(drm_kms_helper_poll_fini); -void drm_helper_hpd_irq_event(struct drm_device *dev) +static void hpd_irq_event_execute(struct work_struct *work) { + struct delayed_work *delayed_work = to_delayed_work(work); + struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.hpd_irq_work); + struct drm_connector *connector; + enum drm_connector_status old_status; + bool changed = false; + if (!dev->mode_config.poll_enabled) return; - /* kill timer and schedule immediate execution, this doesn't block */ - cancel_delayed_work(&dev->mode_config.output_poll_work); + mutex_lock(&dev->mode_config.mutex); + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + + /* Only handle HPD capable connectors. */ + if (!(connector->polled & DRM_CONNECTOR_POLL_HPD)) + continue; + + old_status = connector->status; + + connector->status = connector->funcs->detect(connector, false); + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n", + connector->base.id, + drm_get_connector_name(connector), + old_status, connector->status); + if (old_status != connector->status) + changed = true; + } + + mutex_unlock(&dev->mode_config.mutex); + + if (changed) + drm_kms_helper_hotplug_event(dev); +} + +void drm_helper_hpd_irq_event(struct drm_device *dev) +{ + cancel_delayed_work(&dev->mode_config.hpd_irq_work); if (drm_kms_helper_poll) - schedule_delayed_work(&dev->mode_config.output_poll_work, 0); + schedule_delayed_work(&dev->mode_config.hpd_irq_work, 0); } EXPORT_SYMBOL(drm_helper_hpd_irq_event); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 1f5f1d642a9..ccff8c9b378 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -793,6 +793,7 @@ struct drm_mode_config { /* output poll support */ bool poll_enabled; struct delayed_work output_poll_work; + struct delayed_work hpd_irq_work; /* pointers to standard properties */ struct list_head property_blob_list; |