This function is the same as drm_kms_helper_hotplug_event, but takes
a connector instead of a device.
Signed-off-by: Simon Ser <contact@xxxxxxxxxxx>
---
drivers/gpu/drm/drm_probe_helper.c | 23 +++++++++++++++++++++++
include/drm/drm_probe_helper.h | 1 +
2 files changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index e7e1ee2aa352..8cc673267cba 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);
diff --git a/include/drm/drm_probe_helper.h b/include/drm/drm_probe_helper.h
index 8d3ed2834d34..733147ea89be 100644
--- a/include/drm/drm_probe_helper.h
+++ b/include/drm/drm_probe_helper.h
@@ -19,6 +19,7 @@ void drm_kms_helper_poll_init(struct drm_device *dev);
void drm_kms_helper_poll_fini(struct drm_device *dev);
bool drm_helper_hpd_irq_event(struct drm_device *dev);
void drm_kms_helper_hotplug_event(struct drm_device *dev);
+void drm_kms_helper_connector_hotplug_event(struct drm_connector *connector);
void drm_kms_helper_poll_disable(struct drm_device *dev);
void drm_kms_helper_poll_enable(struct drm_device *dev);
--
2.31.1
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