On Sun, Jun 25, 2017 at 12:48:50PM +0200, Pavel Machek wrote:

> 2) How to handle GSM audio?

Do you have some more specific concern?  This already works basically
fine upstream, we happily support off-SoC audio paths.  The digital
configuration could do with being more flexible but it works and people
ship it.  It would be awfully nice to have some control/visibility of
the modem side but that's just a missing driver problem.