linux-kernel - Re: [PATCH 2/2] dt-bindings: serial: renesas,scif: Validate 'interrupts' and 'interrupt-names'

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Date: Thu, 7 Mar 2024 10:53:40 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Prabhakar <prabhakar.csengg@...il.com>,
 Geert Uytterhoeven <geert+renesas@...der.be>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Jiri Slaby <jirislaby@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Magnus Damm <magnus.damm@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
 devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
 Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
 Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH 2/2] dt-bindings: serial: renesas,scif: Validate
 'interrupts' and 'interrupt-names'

On 07/03/2024 00:10, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> This commit adds support to validate the 'interrupts' and 'interrupt-names'
> properties for every supported SoC. This ensures proper handling and
> configuration of interrupt-related properties across supported platforms.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> ---
>  .../bindings/serial/renesas,scif.yaml         | 117 +++++++++++++-----
>  1 file changed, 85 insertions(+), 32 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
> index af72c3420453..1a5f4568ae4f 100644
> --- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
> +++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
> @@ -82,38 +82,6 @@ properties:
>    reg:
>      maxItems: 1
>  
> -  interrupts:

Properties should be defined in top-level block with widest constraints
(min/maxItems). Your if:then: narrows them per each variant.

> -    oneOf:
> -      - items:
> -          - description: A combined interrupt
> -      - items:
> -          - description: Error interrupt
> -          - description: Receive buffer full interrupt
> -          - description: Transmit buffer empty interrupt
> -          - description: Break interrupt
> -      - items:
> -          - description: Error interrupt
> -          - description: Receive buffer full interrupt
> -          - description: Transmit buffer empty interrupt
> -          - description: Break interrupt
> -          - description: Data Ready interrupt
> -          - description: Transmit End interrupt
> -
> -  interrupt-names:
> -    oneOf:
> -      - items:
> -          - const: eri
> -          - const: rxi
> -          - const: txi
> -          - const: bri
> -      - items:
> -          - const: eri
> -          - const: rxi
> -          - const: txi
> -          - const: bri
> -          - const: dri
> -          - const: tei

This probably could be:

        minItems: 4
        items:
          - const: eri
          - const: rxi
          - const: txi
          - const: bri
          - const: dri
          - const: tei

> -
>    clocks:
>      minItems: 1
>      maxItems: 4
> @@ -173,6 +141,91 @@ allOf:
>        required:
>          - resets
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - renesas,scif-r8a7742
> +              - renesas,scif-r8a7743
> +              - renesas,scif-r8a7744
> +              - renesas,scif-r8a7745
> +              - renesas,scif-r8a77470
> +              - renesas,scif-r8a774a1
> +              - renesas,scif-r8a774b1
> +              - renesas,scif-r8a774c0
> +              - renesas,scif-r8a774e1
> +              - renesas,scif-r8a7778
> +              - renesas,scif-r8a7779
> +              - renesas,scif-r8a7790
> +              - renesas,scif-r8a7791
> +              - renesas,scif-r8a7792
> +              - renesas,scif-r8a7793
> +              - renesas,scif-r8a7794
> +              - renesas,scif-r8a7795
> +              - renesas,scif-r8a7796
> +              - renesas,scif-r8a77961
> +              - renesas,scif-r8a77965
> +              - renesas,scif-r8a77970
> +              - renesas,scif-r8a77980
> +              - renesas,scif-r8a77990
> +              - renesas,scif-r8a77995
> +              - renesas,scif-r8a779a0
> +              - renesas,scif-r8a779f0
> +              - renesas,scif-r8a779g0

There is no way compatibility strings express it?


Best regards,
Krzysztof