Add trivial S_ROUTING IOCTL support for drivers where routing is static.
Essentially this means returning the same information G_ROUTING call would
have done.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-subdev.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 7871ec8a66d1..2b3bfc4bc1e1 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -894,6 +894,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
struct v4l2_subdev_krouting krouting = {};
unsigned int i;
+ if (!v4l2_subdev_has_op(sd, pad, set_routing))
+ goto do_vidioc_subdev_g_routing;
+
if (!v4l2_subdev_enable_streams_api)
return -ENOIOCTLCMD;
@@ -941,6 +944,7 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
return rval;
}
fallthrough;
+do_vidioc_subdev_g_routing:
case VIDIOC_SUBDEV_G_ROUTING: {
struct v4l2_subdev_routing *routing = arg;
--
2.39.2
