Complete Divine's section on Divine feats (page 77) specifically says:
First, they all have as a prerequisite the ability to turn or rebuke undead. Thus, they are open to clerics, paladins of 3rd level or higher, and a member of any prestige class or any creature that has that ability.
Second, the force that powers a divine feat is the ability to channel positive or negative energy to turn or rebuke undead.
In other words, only the ability to turn or rebuke undead can be used to power divine feats. Nothing else, unless there's a ruling somewhere else specifically modifying that or the feat itself says otherwise. See https://dndtools.net/feats/categories/divine/?page_size=100
for a list of divine feats.