I'm going through the court decision and posting references to court cases involving open carry. Here's one for your state.

In Andrews v. State, the Tennessee Supreme Court likewise held that a statute that forbade openly carrying a pistol “publicly or privately, without regard to time or place, or circumstances,” 50 Tenn., at 187, violated the state constitutional provision (which the court equated with the Second Amendment). That was so even though the statute did not restrict the carrying of long guns.
Found on p57 of the opinion.