netdev - Re: [PATCH v2 2/2] dt-bindings: can: tcan4x5x: Document the ti,nwkrq-voltage-sel option

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Message-ID: <20241112-sincere-warm-quetzal-e854ac-mkl@pengutronix.de>
Date: Tue, 12 Nov 2024 08:35:43 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Sean Nyekjaer <sean@...nix.com>
Cc: Vincent Mailhol <mailhol.vincent@...adoo.fr>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, linux-can@...r.kernel.org, 
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 2/2] dt-bindings: can: tcan4x5x: Document the
 ti,nwkrq-voltage-sel option

On 11.11.2024 09:54:50, Sean Nyekjaer wrote:
> nWKRQ supports an output voltage of either the internal reference voltage
> (3.6V) or the reference voltage of the digital interface 0 - 6V.
> Add the devicetree option ti,nwkrq-voltage-sel to be able to select
> between them.
> 
> Signed-off-by: Sean Nyekjaer <sean@...nix.com>
> ---
>  Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml b/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
> index f1d18a5461e05296998ae9bf09bdfa1226580131..a77c560868d689e92ded08b9deb43e5a2b89bf2b 100644
> --- a/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
> +++ b/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
> @@ -106,6 +106,18 @@ properties:
>        Must be half or less of "clocks" frequency.
>      maximum: 18000000
>  
> +  ti,nwkrq-voltage-sel:
> +    $ref: /schemas/types.yaml#/definitions/uint8
> +    description:
> +      nWKRQ Pin GPO buffer voltage rail configuration.
> +      The option of this properties will tell which
> +      voltage rail is used for the nWKRQ Pin.
> +    oneOf:
> +      - description: Internal voltage rail
> +        const: 0
> +      - description: VIO voltage rail
> +        const: 1

We usually don't want to put register values into the DT. Is 0, i.e. the
internal voltage rail the default? Is using a boolean better here?

regards,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
Embedded Linux                   | https://www.pengutronix.de |
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