drm: rework PCI/platform driver interface.

This abstracts the pci/platform interface out a step further,
we can go further but this is far enough for now to allow USB
to be plugged in.

The drivers now just call the init code directly for their
device type.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index fa64d25..6464490 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -55,11 +55,6 @@
 		 .llseek = noop_llseek,
 	},
 
-	.pci_driver = {
-		 .name = DRIVER_NAME,
-		 .id_table = pciidlist,
-	},
-
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
@@ -68,15 +63,20 @@
 	.patchlevel = DRIVER_PATCHLEVEL,
 };
 
+static struct pci_driver savage_pci_driver = {
+	.name = DRIVER_NAME,
+	.id_table = pciidlist,
+};
+
 static int __init savage_init(void)
 {
 	driver.num_ioctls = savage_max_ioctl;
-	return drm_init(&driver);
+	return drm_pci_init(&driver, &savage_pci_driver);
 }
 
 static void __exit savage_exit(void)
 {
-	drm_exit(&driver);
+	drm_pci_exit(&driver, &savage_pci_driver);
 }
 
 module_init(savage_init);