Re: [PATCH] dt-bindings: usb: add properties for hard wired devices

Chunfeng Yun
2020-09-29T06:09:20Z

On Mon, 2020-09-28 at 13:12 -0500, Rob Herring wrote:
> On Mon, Sep 28, 2020 at 02:39:50PM +0800, Chunfeng Yun wrote:
> > Add some optional properties which are needed for hard wired devices
> >
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> > ---
> > Documentation/devicetree/bindings/usb/usb-hcd.yaml | 11 +++++++++++
> > 1 file changed, 11 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/usb/usb-hcd.yaml b/Documentation/devicetree/bindings/usb/usb-hcd.yaml
> > index 7263b7f2b510..1194a82887e7 100644
> > --- a/Documentation/devicetree/bindings/usb/usb-hcd.yaml
> > +++ b/Documentation/devicetree/bindings/usb/usb-hcd.yaml
> > @@ -22,6 +22,17 @@ properties:
> > description:
> > Name specifier for the USB PHY
> >
> > + "#address-cells":
> > + const: 1
> > +
> > + "#size-cells":
> > + const: 0
> > +
> > +patternProperties:
> > + "^hub|device@[0-9a-f]+$":
>
> Could be any class of device, so '@[0-9a-f]+$'
You mean we will use different standard node name for each usb class?
e.g.
Use 'ethernet@*' for a usb ethernet adapter, and use 'camera@*' for a
usb camera sensor?

>
> > + type: object
> > + description: The hard wired USB devices. See usb/usb-device.txt
>
> Ideally, we'd convert usb-device.txt to schema and reference it here.
Ok, I'll try to do it.

BTW: Does the compatible support pattern? Is there any example I can
refer to?

Thanks

>
> > +
> > examples:
> > - |
> > usb {
> > --
> > 2.18.0