[PATCH v4 2/3] usb: dwc3: dwc3-st: Add st-dwc3 devicetree bindings documentation

Peter Griffin peter.griffin at linaro.org
Thu Aug 21 07:03:47 PDT 2014

Hi Felipe,

On Thu, 21 Aug 2014, Felipe Balbi wrote:

> > Currently (in the vendor tree) one of the phys lives in
> > drivers/usb/phy and the other in drivers/phy.
> > I believe that is because one is only a usb phy and the other is a
> > multi function phy which can drive PCI-E or USB3.
> right, but for mainline, we can have both PHYs in drivers/phy only.

Ah ok, I didn't know that, so thanks for that info.
> > So to make that work, when dwc3/core.c gets the PHYS in
> > dwc3_core_get_phy() we need to use the different bindings.
> > 
> > I think we are the only platform using "one of each", but luckily
> > dwc3_core_get_phy() has been written generically enough that it "just
> > works" :-).
> true, but I want to drop support for the legacy drivers/usb/phy layer
> from dwc3. I'll try to move all PHYs to drivers/phy for v3.18.

Ok, so for the next re-spin I will change this to just use the generic phy binding
for both usb2 & usb3 phys.

In parallel I will also migrate over the drivers/usb/phy driver to be just a generic phy
before I attempt to upstream it.



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