From: "Huan He" <hehuan1@eswincomputing.com>
To: "Rob Herring" <robh@kernel.org>
Cc: ulf.hansson@linaro.org, krzk+dt@kernel.org, conor+dt@kernel.org,
jszhang@kernel.org, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
ningyu@eswincomputing.com, linmin@eswincomputing.com,
pinkesh.vaghela@einfochips.com, xuxiang@eswincomputing.com,
"Pritesh Patel" <pritesh.patel@einfochips.com>
Subject: Re: Re: [PATCH v1] dt-bindings: mmc: dwcmshc-sdhci: Fix resets array validation
Date: Thu, 12 Feb 2026 15:37:39 +0800 (GMT+08:00) [thread overview]
Message-ID: <b0805c4.368e.19c50c8c197.Coremail.hehuan1@eswincomputing.com> (raw)
In-Reply-To: <20260211221017.GA3976151-robh@kernel.org>
> > 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.
> >
> > Remove the global maxItems constraints and let the per-compatible
> > schema branches define the required reset array sizes explicitly.
> >
> > 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>
> > ---
> > .../devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml | 6 ------
> > 1 file changed, 6 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
> > index 7e7c55dc2440..8af55a53b569 100644
> > --- a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
> > +++ b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml
> > @@ -49,12 +49,6 @@ properties:
> > power-domains:
> > maxItems: 1
> >
> > - resets:
> > - maxItems: 5
> > -
> > - reset-names:
> > - maxItems: 5
>
> No, add 'minItems' that covers the whole range needed.
Thank you very much for taking the time to review the patch and for your
valuable feedback.
I have checked other vendors in the kernel that use the resets property.
The minimum number in actual use is 4 (Eswin uses 4, others use 5).
Is it reasonable to add "minItems: 1"?
Best regards,
Huan He
next prev parent reply other threads:[~2026-02-12 7:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-11 9:47 [PATCH v1] dt-bindings: mmc: dwcmshc-sdhci: Fix resets array validation hehuan1
2026-02-11 22:10 ` Rob Herring
2026-02-12 7:37 ` Huan He [this message]
2026-02-12 17:23 ` Rob Herring
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