Adama has enjoyed a superb season so far with Wolves and is on the brink of a Spain call.
Of his split from Barca, he told El Larguero: "I was there for ten years and I have good memories. I went through with Neymar.
"But there were certain problems with the club. Misunderstandings and I decided to leave and so to grow as a player.
"I prefer not to talk about the history I had with the club. I did not go out in the best way but it was a decision I made and I do not regret it."
On the La Roja, Adama added: "Yes, I would like to be summoned again by Spain. I am grateful to Robert Moreno and every player is available to go. With Mali I have already spoken and I have made everything clear with them. I have never gone with Mali and never told them that I would go with them, so far it is like that."
Asked about playing for Barca again, he said: "My intention is to be one of the best players in England and then of course I would like to return.
"I have no resentment for Barça. Why not. If Madrid or Barca comes, I would consider it."