linux-kernel - Re: [PATCH v2 1/4] dt-bindings: usb: typec-tcpci: add tcpci fallback binding

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Date: Thu, 22 Feb 2024 17:19:46 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Marco Felsch <m.felsch@...gutronix.de>, gregkh@...uxfoundation.org,
 robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 linux@...ck-us.net, heikki.krogerus@...ux.intel.com, jun.li@....com
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH v2 1/4] dt-bindings: usb: typec-tcpci: add tcpci fallback
 binding

On 15/02/2024 22:28, Marco Felsch wrote:
> The NXP PTN5110 [1] is an TCPCI [2] compatible chip, so add the fallback
> binding.
> 
> [1] https://www.nxp.com/docs/en/data-sheet/PTN5110.pdf
> [2] https://www.usb.org/sites/default/files/documents/usb-port_controller_specification_rev2.0_v1.0_0.pdf
> 
> Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
> ---
> v2:
> - rephrase commit message
> 
>  Documentation/devicetree/bindings/usb/nxp,ptn5110.yaml | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/nxp,ptn5110.yaml b/Documentation/devicetree/bindings/usb/nxp,ptn5110.yaml
> index eaedb4cc6b6c..7bd7bbbac9e0 100644
> --- a/Documentation/devicetree/bindings/usb/nxp,ptn5110.yaml
> +++ b/Documentation/devicetree/bindings/usb/nxp,ptn5110.yaml
> @@ -11,7 +11,9 @@ maintainers:
>  
>  properties:
>    compatible:
> -    const: nxp,ptn5110
> +    enum:
> +      - nxp,ptn5110
> +      - tcpci

That's not a fallback, but enum. Fallback is "items" and then you could
also send a follow-up patchset (separate, so Greg won't take it) fixing
DTS (if not, let me know, so I will fix it).

Best regards,
Krzysztof