Is this link relevant? It talks about how Google is going to start including proprietary drivers in AOSP more frequently. Funny we were just talking about it.
http://www.androidpolice.com/2014/06/05/google-begins-distributing-the-latest-proprietary-binaries-for-nexus-devices-as-previews-should-stay-in-sync-with-aosp-master-branch/
http://www.androidpolice.com/2014/06/05/google-begins-distributing-the-latest-proprietary-binaries-for-nexus-devices-as-previews-should-stay-in-sync-with-aosp-master-branch/
