Summorum Pontificum, Benedict XVI’s Motu Proprio, applies to the entire Latin Church. Bishops can’t override it.
Some articles of SP get more attention than others. Here is one which might not be immediately present in your mind:
Art. 7. Ubi aliquis coetus fidelium laicorum, de quo in art. 5 § 1 petita a parocho non obtinuerit, de re certiorem faciat Episcopum dioecesanum. Episcopus enixe rogatur ut eorum optatum exaudiat. Si ille ad huiusmodi celebrationem providere non vult [previously non potest] res ad Pontificiam Commissionem “Ecclesia Dei” referatur.
Art. 7. Where some group of the lay faithful, mentioned in art. 5 § 1 will not have obtained the things sought from the pastor, let the Diocesan Bishop be informed about the matter. The Bishop is strenuously asked that he graciously grant their desire. If does not want to provide for a celebration of this kind, let the matter be referred to the Pontifical Commission “Ecclesia Dei“.