Does the criterion for being considered a "provider" (mu'il) solely depend on providing food and drink? For…

Does the criterion for being considered a "provider" (mu'il) solely depend on providing food and drink? For example, if a father donates an apartment in his house for his son to live in, or if the father rents an apartment outside the house and allows his son to use it, and the married son provides food and drink for himself, his wife, and children, is the maintainer exclusively the son or both the son and the father?