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drm/probe-helper: add drm_kms_helper_connector_hotplug_event

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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@emersion.fr>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211018084707.32253-3-contact@emersion.fr
This commit is contained in:
Simon Ser 2021-10-18 08:47:26 +00:00
parent 0d6a8c5e96
commit 710074bb8a
2 changed files with 24 additions and 0 deletions
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23
drivers/gpu/drm/drm_probe_helper.c
View File

@ -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);

1
include/drm/drm_probe_helper.h
View File

@ -20,6 +20,7 @@ void drm_kms_helper_poll_fini(struct drm_device *dev);
bool drm_helper_hpd_irq_event(struct drm_device *dev);
bool drm_connector_helper_hpd_irq_event(struct drm_connector *connector);
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);