V4L/DVB: v4l: move vbi-specific video ops to a new vbi ops struct

Only a relatively small number of video receivers and transmitters actually
support VBI. So start moving the vbi specific ops to an ops struct of their
own.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index 250ef84..32e11fc 100644
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -727,16 +727,20 @@
 };
 
 static const struct v4l2_subdev_video_ops saa7127_video_ops = {
-	.s_vbi_data = saa7127_s_vbi_data,
 	.g_fmt = saa7127_g_fmt,
 	.s_std_output = saa7127_s_std_output,
 	.s_routing = saa7127_s_routing,
 	.s_stream = saa7127_s_stream,
 };
 
+static const struct v4l2_subdev_vbi_ops saa7127_vbi_ops = {
+	.s_vbi_data = saa7127_s_vbi_data,
+};
+
 static const struct v4l2_subdev_ops saa7127_ops = {
 	.core = &saa7127_core_ops,
 	.video = &saa7127_video_ops,
+	.vbi = &saa7127_vbi_ops,
 };
 
 /* ----------------------------------------------------------------------- */