On Thu, Sep 15, 2016 at 06:16:38PM -0700, Stephen Boyd wrote:
> > For #3, it is not the
> > use case for this design. #3 is usually used for the single port which
> > needs to support switching role on the fly without disconnection.
> > So, you may only need to consider #2, you can't use extcon-usb-gpio.c
> > directly since you need to set one gpio to mux the dp/dm, Baolu Lu had
> > USB MUX patch set before which may satisfy your requirement. 
> Ok. Did the usb mux patches go anywhere? It seemed to get tangled up in
> DRD framework and I haven't been following along. I'll look into these
> patches more.
DRD framework is denied by Felipe due to only one user can be benefit
from it (chipidea OTG), I don't know the further status of USB MUX,
maybe you can ask for it.