[PATCH] drm: Send a hotplug uevent after performing a sysfs connection probe

Chris Wilson chris at chris-wilson.co.uk
Thu Nov 19 05:51:37 PST 2015


If we probe the connector status from sysfs and find it has a new value,
we should synthesize the associated hotplug uevent. This keeps our
behaviour consistent and informs userspace of any override or change
imposed by the user.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/drm_sysfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 615b7e667320..382b82f871bc 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -208,6 +208,8 @@ static ssize_t status_store(struct device *device,
 		if (dev->mode_config.poll_enabled)
 			schedule_delayed_work(&dev->mode_config.output_poll_work,
 					      0);
+
+		drm_kms_helper_hotplug_event(dev);
 	}
 
 	mutex_unlock(&dev->mode_config.mutex);
-- 
2.6.2



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