[RFC 2/7] media: v4l: subdev: Support INTERNAL_SOURCE pads in routing IOCTLs

[Sakari Ailus <sakari.ailus@linux.intel.com>]

Take the new INTERNAL_SOURCE pad flag into account in validating routing
IOCTL argument. Effectively this is a SINK pad in this respect. Due to the
union there's no need to check for the particular name.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-subdev.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 2ec179cd1264..6312fc2bf1f0 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -906,7 +906,8 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
 				return -EINVAL;
 
 			if (!(pads[route->sink_pad].flags &
-			      MEDIA_PAD_FL_SINK))
+			      (MEDIA_PAD_FL_SINK |
+			       MEDIA_PAD_FL_INTERNAL_SOURCE)))
 				return -EINVAL;
 
 			if (route->source_pad >= sd->entity.num_pads)
@@ -1787,7 +1788,8 @@ int v4l2_subdev_routing_validate(struct v4l2_subdev *sd,
 
 		/* Validate the sink and source pad numbers. */
 		if (route->sink_pad >= sd->entity.num_pads ||
-		    !(sd->entity.pads[route->sink_pad].flags & MEDIA_PAD_FL_SINK)) {
+		    !(sd->entity.pads[route->sink_pad].flags &
+		      (MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_INTERNAL_SOURCE))) {
 			dev_dbg(sd->dev, "route %u sink (%u) is not a sink pad\n",
 				i, route->sink_pad);
 			goto out;
-- 
2.30.2