linux-kernel - Re: [PATCH 16/18] dt-bindings: usb: meson-g12a-usb: Validate DWC2/DWC3 sub-nodes

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Message-ID: <20201013124203.GE3269269@bogus>
Date:   Tue, 13 Oct 2020 07:42:03 -0500
From:   Rob Herring <robh@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Mathias Nyman <mathias.nyman@...el.com>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manu Gautam <mgautam@...eaurora.org>,
        Roger Quadros <rogerq@...com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH 16/18] dt-bindings: usb: meson-g12a-usb: Validate
 DWC2/DWC3 sub-nodes

On Sun, Oct 11, 2020 at 01:41:19AM +0300, Serge Semin wrote:
> Amlogic G12A USB DT sub-nodes are supposed to be compatible with the
> generic DWC USB2 and USB3 devices. Since now we've got DT schemas for
> both of the later IP cores let's make sure that the Amlogic G12A USB
> DT nodes are fully evaluated including the DWC sub-nodes.
> 
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> ---
>  .../bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
> index 88184d7e26cc..3e8ac0ff90de 100644
> --- a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
> +++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
> @@ -78,7 +78,20 @@ properties:
>  
>  patternProperties:
>    "^usb@[0-9a-f]+$":
> -    type: object
> +    allOf:
> +      - if:
> +          properties:
> +            compatible:
> +              contains:
> +                const: snps,dwc2
> +        then:
> +          $ref: dwc2.yaml#
> +      - if:
> +          properties:
> +            compatible:
> +              const: snps,dwc3
> +        then:
> +          $ref: snps,dwc3.yaml#

It should be enough to do just:

oneOf:
  - $ref: dwc2.yaml#
  - $ref: snps,dwc3.yaml#