[PATCH v2 03/13] media: i2c: imx290: Add V4L2_SUBDEV_FL_HAS_EVENTS and subscribe hooks

[Dave Stevenson <dave.stevenson@raspberrypi.com>]

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.

This driver didn't and would therefore fail v4l2-compliance
testing.

Add the relevant hooks.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
 drivers/media/i2c/imx290.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c
index 827c0804792f..22faa9b54810 100644
--- a/drivers/media/i2c/imx290.c
+++ b/drivers/media/i2c/imx290.c
@@ -20,6 +20,7 @@
 #include <media/media-entity.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>
 
@@ -993,6 +994,11 @@ static int imx290_entity_init_cfg(struct v4l2_subdev *subdev,
 	return 0;
 }
 
+static const struct v4l2_subdev_core_ops imx290_core_ops = {
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
 static const struct v4l2_subdev_video_ops imx290_video_ops = {
 	.s_stream = imx290_set_stream,
 };
@@ -1007,6 +1013,7 @@ static const struct v4l2_subdev_pad_ops imx290_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops imx290_subdev_ops = {
+	.core = &imx290_core_ops,
 	.video = &imx290_video_ops,
 	.pad = &imx290_pad_ops,
 };
@@ -1025,7 +1032,8 @@ static int imx290_subdev_init(struct imx290 *imx290)
 	imx290->current_mode = &imx290_modes_ptr(imx290)[0];
 
 	v4l2_i2c_subdev_init(&imx290->sd, client, &imx290_subdev_ops);
-	imx290->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	imx290->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+			    V4L2_SUBDEV_FL_HAS_EVENTS;
 	imx290->sd.dev = imx290->dev;
 	imx290->sd.entity.ops = &imx290_subdev_entity_ops;
 	imx290->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
-- 
2.34.1