Davis hit a solo homer in the first, and Wieters added a solo drive off J.A. Happ in the seventh.
Brett Lawrie hit a three-run homer for Toronto, his second home run in two games. Jose Reyes had a two-run shot and Ryan Goins hit a solo homer, his first this season.
Chris Tillman (3-1) won for the third time in four starts despite allowing seven earned runs, two more than he'd given up in his four previous outings this season combined. Tillman allowed nine hits in 5 2-3 innings, walked two and struck out a season-high seven.