> On Tue, Oct 16, 2018 at 2:02 AM Peter Chen <[email protected]> wrote:
> >
> > For USB HSIC, the data and strobe pin needs to be pulled down at
> > default, we consider it as "idle" state. When the USB host is ready to
> > be used, the strobe pin needs to be pulled up, we consider it as
> > "active" state.
> >
> > Signed-off-by: Peter Chen <[email protected]>
> > ---
> > Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
> > b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
> > index 529e51879fb2..10c8d793ea49 100644
> > --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
> > +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
> > @@ -81,6 +81,7 @@ Optional properties:
> > mux state of 1 indicates host mode.
> > - mux-control-names: Shall be "usb_switch" if mux-controls is specified.
> > - pinctrl-names: Names for optional pin modes in "default", "host",
> > "device"
> > + Or names for HSIC "idle" and "active" pin modes.
>
> I don't think this description is clear enough.
>
> Could you please add a real dts snippet for the HSIC case instead?
Ok, I will add example like below at next version.
usb@02184000 { /* USB OTG */ {
...
pinctrl-names = "idle", "active";
pinctrl-0 = <&pinctrl_usbh2_1>;
pinctrl-1 = <&pinctrl_usbh2_2>;
...
};
Peter
