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drm: Automatically register/unregister all connectors 

As the drm_connector is now safe for multiple calls to
register/unregister, automatically perform a registration on all known
connectors drm drv_register (and unregister from drm_drv_unregister).
Drivers can still call drm_connector_register() and
drm_connector_unregister() individually, or defer as required.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466151923-1572-2-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-17 09:25:17 +01:00 committed by Daniel Vetter
parent acd8f414c9
commit e28cd4d0a2
2 changed files with 8 additions and 8 deletions
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6
drivers/gpu/drm/drm_crtc.c
View File

@ -1047,9 +1047,9 @@ EXPORT_SYMBOL(drm_connector_unregister);
* @dev: drm device
*
* This function registers all connectors in sysfs and other places so that
* userspace can start to access them. Drivers can call it after calling
* drm_dev_register() to complete the device registration, if they don't call
* drm_connector_register() on each connector individually.
* userspace can start to access them. drm_connector_register_all() is called
* automatically from drm_dev_register() to complete the device registration,
* if they don't call drm_connector_register() on each connector individually.
*
* When a device is unplugged and should be removed from userspace access,
* call drm_connector_unregister_all(), which is the inverse of this

10
drivers/gpu/drm/drm_drv.c
View File

@ -650,11 +650,7 @@ EXPORT_SYMBOL(drm_dev_unref);
*
* Register the DRM device @dev with the system, advertise device to user-space
* and start normal device operation. @dev must be allocated via drm_dev_alloc()
* previously. Right after drm_dev_register() the driver should call
* drm_connector_register_all() to register all connectors in sysfs. This is
* a separate call for backward compatibility with drivers still using
* the deprecated ->load() callback, where connectors are registered from within
* the ->load() callback.
* previously.
*
* Never call this twice on any device!
*
@ -691,6 +687,8 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags)
goto err_minors;
}
drm_connector_register_all(dev);
ret = 0;
goto out_unlock;
@ -721,6 +719,8 @@ void drm_dev_unregister(struct drm_device *dev)
drm_lastclose(dev);
drm_connector_unregister_all(dev);
if (dev->driver->unload)
dev->driver->unload(dev);