media: i2c: st-vgxy61: Add V4L2_SUBDEV_FL_HAS_EVENTS and subscribe hooks

Any V4L2 subdevice that implements controls and declares
V4L2_SUBDEV_FL_HAS_DEVNODE should also declare V4L2_SUBDEV_FL_HAS_EVENTS
and implement subscribe_event and unsubscribe_event hooks.

With that done, v4l2-compliance testing is now ok.
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/i2c/st-vgxy61.c

@@ -21,6 +21,7 @@
 #include <media/v4l2-async.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
@@ -1464,6 +1465,11 @@ static int vgxy61_init_controls(struct vgxy61_dev *sensor)
 	return ret;
 }
 
+static const struct v4l2_subdev_core_ops vgxy61_core_ops = {
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
 static const struct v4l2_subdev_video_ops vgxy61_video_ops = {
 	.s_stream = vgxy61_s_stream,
 };
@@ -1477,6 +1483,7 @@ static const struct v4l2_subdev_pad_ops vgxy61_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops vgxy61_subdev_ops = {
+	.core = &vgxy61_core_ops,
 	.video = &vgxy61_video_ops,
 	.pad = &vgxy61_pad_ops,
 };
@@ -1846,7 +1853,8 @@ static int vgxy61_probe(struct i2c_client *client)
 
 	v4l2_i2c_subdev_init(&sensor->sd, client, &vgxy61_subdev_ops);
 	sensor->sd.internal_ops = &vgxy61_internal_ops;
-	sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+			    V4L2_SUBDEV_FL_HAS_EVENTS;
 	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sensor->sd.entity.ops = &vgxy61_subdev_entity_ops;
 	sensor->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;