Hello,
As I read in the TPS65910x Integrated Power Management Unit Top Specification document at the link below:
http://www.ti.com/lit/ds/swcs046t/swcs046t.pdf
You are right about the I2C address of TPS65910. The general-purpose I2C module using one slave hard-coded address (ID1 = 2Dh). Therefore the decision is to change the address for I2C communication in the sources code but could you specify what software you are using. Is it some official TI's release or it is a custom build?
BR
Tsvetolin Shulev