Ginkgo Tree has large areas where bark is missing

Zone – 4B, Sun for most of the day, Tree is in a sheltered near to house. I noticed that there are many holes on the trunk of the tree. Just below where the tree starts branching out the bark…

Gingko tree

Need information on how to lightly trim back a Gingko tree that is a bit too close to a structure. The tree is healthy but a small part of it is beginning to strike a wall which may eventually damage…