When the ball is on an uphill or above your feet lie all you have to do is make some adjustments to your set up and stance
There is a really small difference in stance widths, with your driver your shoulders should line up with the outside of your shoes while with your pitching wedge they should line up with the inside of your shoes
Keep your feet quite throughout the swing, eliminating sway and bad balance, just let the body take the feet where they need to go, left foot slightly inward on the backswing, right foot on its toe on at the finish with all your weight equally supported on a flat left foot