Re: [PATCH v3] dt-bindings: mmc: dwcmshc-sdhci: Fix resets array validation

[Conor Dooley <conor@kernel.org>]

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On Tue, Feb 24, 2026 at 05:23:37PM +0800, hehuan1@eswincomputing.com wrote:
> From: Huan He <hehuan1@eswincomputing.com>
> 
> The binding defines tuple-style reset-names items for some
> compatibles, which implicitly enforces a fixed array length
> via JSON Schema.
> 
> Defining global maxItems for resets and reset-names causes these
> constraints to be intersected via allOf, resulting in an effective
> minItems equal to the global maxItems. This leads to dtbs_check
> failures reporting reset arrays as too short, even when the DTS
> provides the correct number of entries.
> 
> Fixes: 30009a21f257 ("dt-bindings: mmc: sdhci-of-dwcmshc: Add Eswin EIC7700")
> Signed-off-by: Pritesh Patel <pritesh.patel@einfochips.com>
> Signed-off-by: Huan He <hehuan1@eswincomputing.com>

Signoff chain looks wrong. You're author and submitter, what did
Pritesh do?
Content looks okay to me.

> 
> ---
> Changes in v3:
>   - Add minItems: 5 in 'else' branch for non-eswin,eic7700-dwcmshc
>     compatibles
> 
> Changes in v2:
>   - Keep the global maxItems constraints and add minItems: 4 for both
>     resets and reset-names properties
>   - Update commit message
> 
> - Link to v1: https://lore.kernel.org/all/20260211094736.88-1-hehuan1@eswincomputing.com/
> ---
>  Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
> index 7e7c55dc2440..5cebe5eb1efb 100644
> --- a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
> @@ -50,9 +50,11 @@ properties:
>      maxItems: 1
>  
>    resets:
> +    minItems: 4
>      maxItems: 5
>  
>    reset-names:
> +    minItems: 4
>      maxItems: 5
>  
>    rockchip,txclk-tapnum:
> @@ -146,6 +148,7 @@ allOf:
>      else:
>        properties:
>          resets:
> +          minItems: 5
>            maxItems: 5
>          reset-names:
>            items:
> -- 
> 2.25.1
> 

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