From 710074bb8ab0efac425a43473b8a3e057d645f82 Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Mon, 18 Oct 2021 08:47:26 +0000 Subject: drm/probe-helper: add drm_kms_helper_connector_hotplug_event This function is the same as drm_kms_helper_hotplug_event, but takes a connector instead of a device. Signed-off-by: Simon Ser Reviewed-by: Sam Ravnborg Acked-by: Harry Wentland Acked-by: Pekka Paalanen Link: https://patchwork.freedesktop.org/patch/msgid/20211018084707.32253-3-contact@emersion.fr --- drivers/gpu/drm/drm_probe_helper.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/gpu/drm/drm_probe_helper.c') diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 61d5c57f23e1..3aef3b188c99 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -604,6 +604,9 @@ EXPORT_SYMBOL(drm_helper_probe_single_connector_modes); * * This function must be called from process context with no mode * setting locks held. + * + * If only a single connector has changed, consider calling + * drm_kms_helper_connector_hotplug_event() instead. */ void drm_kms_helper_hotplug_event(struct drm_device *dev) { @@ -616,6 +619,26 @@ void drm_kms_helper_hotplug_event(struct drm_device *dev) } EXPORT_SYMBOL(drm_kms_helper_hotplug_event); +/** + * drm_kms_helper_connector_hotplug_event - fire off a KMS connector hotplug event + * @connector: drm_connector which has changed + * + * This is the same as drm_kms_helper_hotplug_event(), except it fires a more + * fine-grained uevent for a single connector. + */ +void drm_kms_helper_connector_hotplug_event(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + + /* send a uevent + call fbdev */ + drm_sysfs_connector_hotplug_event(connector); + if (dev->mode_config.funcs->output_poll_changed) + dev->mode_config.funcs->output_poll_changed(dev); + + drm_client_dev_hotplug(dev); +} +EXPORT_SYMBOL(drm_kms_helper_connector_hotplug_event); + static void output_poll_execute(struct work_struct *work) { struct delayed_work *delayed_work = to_delayed_work(work); -- cgit v1.2.3