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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org
Cc: Jaehoon Chung <jh80.chung@samsung.com>,
	linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Ping Gao <ping.gao@samsung.com>
Subject: Re: [PATCH] dt-bindings: mmc: samsung,exynos-dw-mshc: Make both clocks required
Date: Fri, 6 Mar 2026 12:50:23 +0100	[thread overview]
Message-ID: <3eb61c4b-2902-4a62-8246-4bed683fe326@kernel.org> (raw)
In-Reply-To: <20260306112742.64235-1-ulf.hansson@linaro.org>

On 06/03/2026 12:27, Ulf Hansson wrote:
> The current binding allows one or two clocks to be specified, which is

It allows only 2 clocks, unless you meant that referenced dw-mshc schema
allows one clock. I don't see it there, so I am a bit confused.

> wrong, as both clocks are needed. This is also confirmed by looking at the
> exiting upstream DTS files. Let's update the binding to fix this.
> 
> Cc: Ping Gao <ping.gao@samsung.com>
> Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> ---
>  .../devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml          | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
> index 27c4060f2f91..3e560dde714e 100644
> --- a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
> +++ b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
> @@ -42,6 +42,7 @@ properties:
>      maxItems: 1
>  
>    clocks:
> +    minItems: 2

That's redundant, 2 clocks are already implied.

>      maxItems: 2
Best regards,
Krzysztof

  reply	other threads:[~2026-03-06 11:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-06 11:27 [PATCH] dt-bindings: mmc: samsung,exynos-dw-mshc: Make both clocks required Ulf Hansson
2026-03-06 11:50 ` Krzysztof Kozlowski [this message]
2026-03-06 12:55   ` Ulf Hansson
2026-03-06 13:08     ` Krzysztof Kozlowski
2026-03-09 12:20       ` Ulf Hansson

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