linux-kernel - Re: [PATCH v2 1/3] dt-bindings: i2c: spacemit: add optional resets

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Message-ID: <04880c83-0b3a-4197-9043-d657db91f922@kernel.org>
Date: Fri, 19 Dec 2025 09:03:14 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Encrow Thorne <jyc0019@...il.com>,
 Troy Mitchell <troy.mitchell@...ux.spacemit.com>,
 Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Yixun Lan <dlan@...too.org>,
 Philipp Zabel <p.zabel@...gutronix.de>, Paul Walmsley <pjw@...nel.org>,
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
 Alexandre Ghiti <alex@...ti.fr>
Cc: Troy Mitchell <troymitchell988@...il.com>,
 Guodong Xu <guodong@...cstar.com>, linux-i2c@...r.kernel.org,
 devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
 spacemit@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: i2c: spacemit: add optional resets

On 19/12/2025 08:42, Encrow Thorne wrote:
> The I2C controller requires a reset to ensure it starts from a clean state.
> 
> Add the 'resets' property to support this hardware requirement.
> 
> Signed-off-by: Encrow Thorne <jyc0019@...il.com>
> ---
>  Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
> index b7220fff2235..1290106e28e6 100644
> --- a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
> @@ -32,6 +32,9 @@ properties:
>        - const: func
>        - const: bus
>  
> +  resets:
> +    maxItems: 1
> +

Still between other clock-related properties. You already got such
comment...

>    clock-frequency:
>      description: |
>        K1 support three different modes which running different frequencies
> 


Best regards,
Krzysztof