Popular L.A. disc jockey Jim “Poorman” Trenton has been suspended by alternative music station KROQ.Trenton was put on ice after walking out while hosting Tuesday night’s “Loveline,” the No. 1 radio shift in L.A. in its 10-12 p.m. time slot. The suspension will run through at least Feb. 16. Meanwhile, “Loveline” is being fronted by Tami Heidi, KROQ’s 6-10 p.m. disc jockey. A source close to Trenton blamed “behind the scenes tension” between Trenton and station management. Representatives from Infinity Broadcasting, the station’s owner, couldn’t be reached for comment.