drm/tilcdc: Set up fbdev after fully registering device

Generic fbdev support is a DRM client. Set it up after fully registering
the new DRM device.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408082641.590-8-tzimmermann@suse.de

drivers/gpu/drm/tilcdc/tilcdc_drv.c

@@ -390,10 +390,9 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
 	ret = drm_dev_register(ddev, 0);
 	if (ret)
 		goto init_failed;
+	priv->is_registered = true;
 
 	drm_fbdev_generic_setup(ddev, bpp);
-
-	priv->is_registered = true;
 	return 0;
 
 init_failed: