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drm/i915: add VGA hotplug support for 945+

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Add VGA port hotplug detection to the i915 driver.  When KMS is enabled,
plugging in or removing a VGA cable from the VGA connector will
generate a uevent, which indicates to userspace that it should re-probe
outputs on this device (to determine modes, etc.).

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[anholt: dropped extra PORT_HOTPLUG_STAT clear with ack from jbarnes]
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jesse Barnes
2009-03-31 14:11:15 -07:00
committed by Eric Anholt
parent 4a8df45894
commit 5ca5828208
6 changed files with 77 additions and 14 deletions
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1
drivers/gpu/drm/drm_sysfs.c
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@@ -451,6 +451,7 @@ void drm_sysfs_hotplug_event(struct drm_device *dev)
kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp);
}
EXPORT_SYMBOL(drm_sysfs_hotplug_event);
/**
* drm_sysfs_device_add - adds a class device to sysfs for a character driver