From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

The OV5645 sensor exposes controls, so the V4L2_SUBDEV_FL_HAS_EVENTS flag
should be set and implement subscribe_event and unsubscribe_event hooks.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/i2c/ov5645.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
index 0c32bd2940ec..bcbf3239d3ea 100644
--- a/drivers/media/i2c/ov5645.c
+++ b/drivers/media/i2c/ov5645.c
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
@@ -1042,7 +1043,13 @@ static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = {
 	.get_selection = ov5645_get_selection,
 };
 
+static const struct v4l2_subdev_core_ops ov5645_core_ops = {
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
 static const struct v4l2_subdev_ops ov5645_subdev_ops = {
+	.core = &ov5645_core_ops,
 	.video = &ov5645_video_ops,
 	.pad = &ov5645_subdev_pad_ops,
 };
@@ -1178,7 +1185,8 @@ static int ov5645_probe(struct i2c_client *client)
 
 	v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops);
 	ov5645->sd.internal_ops = &ov5645_internal_ops;
-	ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+			    V4L2_SUBDEV_FL_HAS_EVENTS;
 	ov5645->pad.flags = MEDIA_PAD_FL_SOURCE;
 	ov5645->sd.dev = &client->dev;
 	ov5645->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
-- 
2.43.0