linux-kernel - Re: [PATCH] dt-bindings: usb: add missing compatible arraylist

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Message-ID: <a02e472c-f206-44d3-9a6b-d921e73110fd@kernel.org>
Date: Mon, 23 Sep 2024 14:53:02 +0300
From: Roger Quadros <rogerq@...nel.org>
To: Karan Sanghavi <karansanghvi98@...il.com>, Rob Herring <robh@...nel.org>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-usb@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: usb: add missing compatible arraylist

On 22/09/2024 20:00, Karan Sanghavi wrote:
> Added the vice versa order for compatible property in the yaml file so
> that the dtb can parse for the order mentioned in the dts file
> k3-am642-sk.dts for ti,j721e-usb.yaml

k3-am642-sk.dts does not introduce any nodes with the said compatibles.

"ti,am64-usb" compatible is introduced by k3-am642-main.dtsi.
There is only one compatible introduced so there is nothing to do about
order here.

i.e.
        usbss0: cdns-usb@...0000 {
                compatible = "ti,am64-usb";
                reg = <0x00 0xf900000 0x00 0x100>;

What is the functional problem you are facing? Maybe then someone
can point you in the right direction.

> 
> This is highly ambiguous to me as where exactly the changes needs to be
> added is it in the dts file or is the yaml where we have to reverse the
> order already mentioned or do we have to add the another order as I have
> done ?
> 
> Signed-off-by: Karan Sanghavi <karansanghvi98@...il.com>
> ---
>  Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> index 95ff9791baea..822653217c43 100644
> --- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> @@ -17,6 +17,9 @@ properties:
>        - items:
>            - const: ti,j721e-usb
>            - const: ti,am64-usb
> +      - items:
> +          - const: ti,am64-usb
> +          - const: ti,j721e-usb
>  
>    reg:
>      maxItems: 1

-- 
cheers,
-roger