drm/kms/fb: add polling support for when nothing is connected.
When we are running in a headless environment we have no idea what
output the user might plug in later, we only have hotplug detect
from the digital outputs. So if we detect no connected outputs at
initialisation, start a slow work operation to poll every 5 seconds
for an output.
this is only hooked up for radeon so far, on hw where we have full
hotplug detection there is no need for this.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index e7afd80..a95907a 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -55,7 +55,7 @@
radeon_connector_hotplug(connector);
}
/* Just fire off a uevent and let userspace tell us what to do */
- radeonfb_hotplug(dev);
+ radeonfb_hotplug(dev, false);
drm_sysfs_hotplug_event(dev);
}