A torn left hip labrum will end Ike Davis’ season and potentially could hasten the end of the first baseman’s stay with the A’s. Davis, 28, will have surgery on Thursday in Vail, Colo., with orthopedist Dr. Marc Philippon performing the procedure. Philippon is a specialist who has repaired hip labrums for many professional and Olympic athletes, including Kurt Warner and Mario Lemieux; he also performed Alex Rodriguez’s first hip surgery. Hip surgery can take anywhere from two to six months of recovery time, so Davis won’t play again this year. Arbitration-eligible, he already was a potential candidate to be non-tendered after batting .229 in 74 games, and surgery won’t increase the odds the A’s re-sign him. Davis said earlier in the week that his hip injury might have stemmed from the left quad strain that kept him out a month in May and June and he said it had gradually worsened, affecting both his swing - which partially might account a dip in his power numbers, he recorded three homers this year - and his running. “I thought we were over that hurdle, but I guess he was getting progressively worse and didn’t say a lot about it,” manager Bob Melvin said. Recently, it got to the point where he wasn’t comfortable either swinging or running. Rookie Mark Canha already was getting more playing time at first, and catcher Stephen Vogt and DH Billy Butler also can play there. Outfielder Jake Smolinski, back from Triple-A Nashville this week, might get a game or two there; he spent time working at first before being optioned out Aug.