drm: add drm_dev_alloc() helper

Instead of managing device allocation+initialization in each bus-driver,
we should do that in a central place. drm_fill_in_dev() already does most
of it, but also requires the global drm lock for partial AGP device
registration.

Split both apart so we have a clean device initialization/allocation
phase, and a registration phase.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 69dd5fd5b215..ea545b5ad467 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1643,6 +1643,8 @@ static __inline__ void drm_core_dropmap(struct drm_local_map *map)
 extern int drm_fill_in_dev(struct drm_device *dev,
                            const struct pci_device_id *ent,
                            struct drm_driver *driver);
+struct drm_device *drm_dev_alloc(struct drm_driver *driver,
+                                 struct device *parent);
 int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
 /*@}*/