I ran across this while browsing - interesting take .... (about 15-16 minutes and she makes some (IMO) very relevant comments around the 5:25 minute mark)
The All-knowing Wikipedia states there is religious philosophy as well as philosophy of religions, although I have to admit that I'm not knowledgeable to take apart either. The Hare Krishnas promote their Bhagavad Gita As It Is with a Herrmann Hesse quote:
The marvel of the Bhagavad-Gita is its truly beautiful revelation of life's wisdom which enables philosophy to blossom into religion.