This question is in the context of my previous question.
Wikipedia article on Deva Raya 2 mentions that he defeated the ruler of Quilon, and also that Zamorin paid tribute to Deva Raya 2. But Kingdom of Cochin was under the protection of Ming Dynasty. So, was Kingdom of Cochin under the suzerainty of Vijayanagara Empire, as the article says, or was it just alliance and co-belligerence?