[media] media: davinci: vpif: capture: add V4L2-async support

Add support for asynchronous subdevice probing, using the v4l2-async API.
The legacy synchronous mode is still supported too, which allows to
gradually update drivers and platforms.

Signed-off-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/media/davinci/vpif_types.h b/include/media/davinci/vpif_types.h
index 3882e0675ccf..e08bcde52d05 100644
--- a/include/media/davinci/vpif_types.h
+++ b/include/media/davinci/vpif_types.h
@@ -81,5 +81,7 @@ struct vpif_capture_config {
         struct vpif_subdev_info *subdev_info;
         int subdev_count;
         const char *card_name;
+        struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */
+        int *asd_sizes;         /* 0-terminated array of asd group sizes */
 };
 #endif /* _VPIF_TYPES_H */