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SubjectRe: [PATCH] dt-bindings: usb: add properties for hard wired devices
On Tue, Sep 29, 2020 at 1:09 AM Chunfeng Yun <chunfeng.yun@mediatek.com> wrote:
>
> 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?

Yes.

> > > + 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?

Yes, use 'pattern' keyword.

Rob

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