No suspensions have been issued, but if Greinke happened to be suspended he will proabably be missing the time due to his collarbone injury. Quentin, on the other hand, may not be as fortunate, as he is healthy and did start the brawl.
Quentin claimed that Greinke said something along his walk to first. Greinke just defended himself in the brawl. I don't think his suspension should be as long as Quentin, but if the MLB does think Greinke started it, he maybe recieving the same suspension length as Quentin.
Two other players, Matt Kemp and Jerry Hairston Jr., were both ejected from the game along with Greinke and Quentin.