[PATCH 1/3] dt-bindings: usb: gpio-sbu-mux: Add an entry for PTN36043

[Dmitry Baryshkov]

On Tue, Jul 30, 2024 at 10:58:44AM GMT, Xu Yang wrote:
> On Mon, Jul 29, 2024 at 10:57:33PM +0300, Dmitry Baryshkov wrote:
> > On Mon, Jul 29, 2024 at 04:10:37PM GMT, Xu Yang wrote:
> > > Add a compatible entry for the NXP PTN36043 GPIO-based mux hardware
> > > used for connecting, disconnecting and switching orientation of
> > > the SBU lines in USB Type-C applications.
> > 
> > NAK, this is not correct. PTN36043 switchies SuperSpeed lines and not
> > SBU.
> 
> Yes. Since this gpio mux is able to switch both sbu line and ss line,
> I will change SBU to SuperSpeed in next version in commit message to avoid
> confusion.

Ack. This needs new compatible and probably more schema (and driver)
changes. I think you can't just terminate SS lanes in the mux, they
should go to the actual SoC part (like the SS controller or PHY).

> 
> Thanks,
> Xu Yang
> 
> > 
> > > 
> > > PTN36043 datasheet: https://www.nxp.com/docs/en/data-sheet/PTN36043A.pdf
> > > 
> > > Signed-off-by: Xu Yang <xu.yang_2 at nxp.com>
> > > ---
> > >  Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml b/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml
> > > index 8a5f837eff94..152849f744c1 100644
> > > --- a/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml
> > > +++ b/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml
> > > @@ -20,6 +20,7 @@ properties:
> > >      items:
> > >        - enum:
> > >            - nxp,cbdtu02043
> > > +          - nxp,ptn36043
> > >            - onnn,fsusb43l10x
> > >            - pericom,pi3usb102
> > >            - ti,tmuxhs4212
> > > -- 
> > > 2.34.1
> > > 
> > 
> > -- 
> > With best wishes
> > Dmitry

-- 
With best wishes
Dmitry