Re: [PATCH 02/10] dt-bindings: net: can: grcan: Convert GRCAN CAN controllers binding from txt to YAML

From: Krzysztof Kozlowski
Date: Thu Dec 18 2025 - 05:26:54 EST


On 24/11/2025 16:26, Arun Muthusamy wrote:
> Thank you for the review. I  wish to clarify a few details concerning
> the DT binding and seek your guidance on the preferred approach
>
> On 11/18/2025 12:01 PM, Krzysztof Kozlowski wrote:
>>>> + Fallback on node name matching for systems that don't provide compatible.
>>>> + enum:
>>>> + - GAISLER_GRCAN
>>>> + - 01_03d
>>>> + - GAISLER_GRHCAN
>>>> + - "01_034"
>>> This does not really work. Are you really defining here "name" property?
>
> PROM-based LEON systems identify uses the "node name" property, while
> DTS-based NOEL systems use proper "|compatible"| strings.
>

No, either node name or name property. There is no such thing as node
name property.

> The updated schema now uses:
> properties:
>   $nodename:
>     pattern: "^(GAISLER_GRCAN|01_03d|GAISLER_GRHCAN|01_034)$"

So node name?

Anyway, names are wrong - they do not follow DTS coding style at all.
You need to come rationale why incorrect style has to be used.

>
>   compatible:
>     enum:
>       - gaisler,grcan
>       - gaisler,grcanfd
>
> Please advice me if its the preferred  is a preferred way to describe or
> structure this dual-matching approach.

Nothing above usually - you need specific device compatible. I also do
not know what is the difference between one and another - in terms of
hardware (don't mention drivers please).


Best regards,
Krzysztof