[quote=@ActRaiserTheReturned]
How about a god of sorcery along side the god of magic? Or like Dragon Lance, a god of good magic, evil magic and neutral magic?
[/quote]

As long as their is a clear distinction between the two domains, then yes. Like for example, one is more like witchcraft using wands, rituals, and sorts for its hexes and invocations, while another is more hands on shooting fireballs out of your hand type magic.