Robert Downey Jr’s Son Indio Charged with Felony Drug Possession

EXCLUSIVE

Robert Downey Jr.‘s son Indio has been exciting with felony possession of  a controlled substance … TMZ has learned.

As TMZ previously reported, the 20-year-ancient was arrested in June after cops noticed he was a passenger in a car in West Hollywood … smoking something out of a pipe.  Authorities say Indio — who appeared in “Kiss Kiss Bang Bang” — was in possession…