[PATCH v8 6/9] media: Documentation: Add a note to set all fields in get_mbus_config op

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

Document that the implementations of the V4L2 sub-device pad operation
get_mbus_config shall set all fields of the struct to defined values.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 include/media/v4l2-subdev.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 2f2200875b03..abcc879fabb2 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -822,7 +822,10 @@ struct v4l2_subdev_state {
  *		     possible configuration from the remote end, likely calling
  *		     this operation as close as possible to stream on time. The
  *		     operation shall fail if the pad index it has been called on
- *		     is not valid or in case of unrecoverable failures.
+ *		     is not valid or in case of unrecoverable failures. The
+ *		     implementations of the get_mbus_config operation shall set
+ *		     all the values of struct v4l2_mbus_config to defined
+ *		     values.
  *
  * @set_routing: Enable or disable data connection routes described in the
  *		 subdevice routing table. Subdevs that implement this operation
-- 
2.39.5