media: i2c: ds90ub913: Use v4l2_subdev_get_frame_desc_passthrough

Use the new v4l2_subdev_get_frame_desc_passthrough helper for
.get_frame_desc.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Author: tomba

drivers/media/i2c/ds90ub913.c

@@ -372,63 +372,6 @@ static int ub913_set_routing(struct v4l2_subdev *sd,
 	return _ub913_set_routing(sd, state, routing);
 }
 
-static int ub913_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
-				struct v4l2_mbus_frame_desc *fd)
-{
-	struct ub913_data *priv = sd_to_ub913(sd);
-	const struct v4l2_subdev_krouting *routing;
-	struct v4l2_mbus_frame_desc source_fd;
-	struct v4l2_subdev_route *route;
-	struct v4l2_subdev_state *state;
-	int ret;
-
-	if (pad != UB913_PAD_SOURCE)
-		return -EINVAL;
-
-	ret = v4l2_subdev_call(priv->source_sd, pad, get_frame_desc,
-			       priv->source_sd_pad, &source_fd);
-	if (ret)
-		return ret;
-
-	fd->type = V4L2_MBUS_FRAME_DESC_TYPE_PARALLEL;
-
-	state = v4l2_subdev_lock_and_get_active_state(sd);
-
-	routing = &state->routing;
-
-	for_each_active_route(routing, route) {
-		unsigned int i;
-
-		if (route->source_pad != pad)
-			continue;
-
-		for (i = 0; i < source_fd.num_entries; i++) {
-			if (source_fd.entry[i].stream == route->sink_stream)
-				break;
-		}
-
-		if (i == source_fd.num_entries) {
-			dev_err(&priv->client->dev,
-				"Failed to find stream from source frame desc\n");
-			ret = -EPIPE;
-			goto out_unlock;
-		}
-
-		fd->entry[fd->num_entries].stream = route->source_stream;
-		fd->entry[fd->num_entries].flags = source_fd.entry[i].flags;
-		fd->entry[fd->num_entries].length = source_fd.entry[i].length;
-		fd->entry[fd->num_entries].pixelcode =
-			source_fd.entry[i].pixelcode;
-
-		fd->num_entries++;
-	}
-
-out_unlock:
-	v4l2_subdev_unlock_state(state);
-
-	return ret;
-}
-
 static int ub913_set_fmt(struct v4l2_subdev *sd,
 			 struct v4l2_subdev_state *state,
 			 struct v4l2_subdev_format *format)
@@ -544,7 +487,7 @@ static const struct v4l2_subdev_pad_ops ub913_pad_ops = {
 	.enable_streams = ub913_enable_streams,
 	.disable_streams = ub913_disable_streams,
 	.set_routing = ub913_set_routing,
-	.get_frame_desc = ub913_get_frame_desc,
+	.get_frame_desc = v4l2_subdev_get_frame_desc_passthrough,
 	.get_fmt = v4l2_subdev_get_fmt,
 	.set_fmt = ub913_set_fmt,
 };