diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 378f4e6af12c..5cbc973df684 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -507,6 +507,13 @@ static int adv7180_get_frame_interval(struct v4l2_subdev *sd,
 		fi->interval.denominator = 25;
 	}
 
+	/*
+	 * If the de-interlacer is active, the chip produces full video frames
+	 * at the field rate.
+	 */
+	if (state->field == V4L2_FIELD_NONE)
+		fi->interval.denominator *= 2;
+
 	return 0;
 }