[media] ml86v7667: implement g_std() method

The driver was written with the 'soc_camera' use in mind, however the g_std()
video method was forgotten. Implement it at last...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/i2c/ml86v7667.c

@@ -233,6 +233,15 @@ static int ml86v7667_g_mbus_config(struct v4l2_subdev *sd,
 	return 0;
 }
 
+static int ml86v7667_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+	struct ml86v7667_priv *priv = to_ml86v7667(sd);
+
+	*std = priv->std;
+
+	return 0;
+}
+
 static int ml86v7667_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 {
 	struct ml86v7667_priv *priv = to_ml86v7667(sd);
@@ -282,6 +291,7 @@ static const struct v4l2_ctrl_ops ml86v7667_ctrl_ops = {
 };
 
 static struct v4l2_subdev_video_ops ml86v7667_subdev_video_ops = {
+	.g_std = ml86v7667_g_std,
 	.s_std = ml86v7667_s_std,
 	.querystd = ml86v7667_querystd,
 	.g_input_status = ml86v7667_g_input_status,