linux-kernel - Re: [PATCH 2/7] dt-bindings: i2c: mux: mule: add dt-bindings for mule i2c multiplexer

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Date: Thu, 2 May 2024 14:21:02 +0200
From: Farouk Bouabid <farouk.bouabid@...obroma-systems.com>
To: Rob Herring <robh@...nel.org>
Cc: Andi Shyti <andi.shyti@...nel.org>, linux-rockchip@...ts.infradead.org,
 Wolfram Sang <wsa+renesas@...g-engineering.com>,
 Quentin Schulz <quentin.schulz@...obroma-systems.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Heiko Stuebner <heiko@...ech.de>, linux-i2c@...r.kernel.org,
 devicetree@...r.kernel.org, Peter Rosin <peda@...ntia.se>,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH 2/7] dt-bindings: i2c: mux: mule: add dt-bindings for mule
 i2c multiplexer

Hi Rob,

On 26.04.24 20:22, Rob Herring wrote:
> On Fri, 26 Apr 2024 18:49:33 +0200, Farouk Bouabid wrote:
>> This patch adds support for the Mule I2C multiplexer.
>>
>> Mule is an mcu that emulates a set of i2c devices which are reacheable
>> through an i2c-mux.
>>
>> The emulated devices share a single i2c address with the mux itself where
>> the requested register is what determines which logic is executed (mux or
>> device).
>>
>> Signed-off-by: Farouk Bouabid <farouk.bouabid@...obroma-systems.com>
>> ---
>>   .../devicetree/bindings/i2c/i2c-mux-mule.yaml      | 80 ++++++++++++++++++++++
>>   1 file changed, 80 insertions(+)
>>
> My bot found errors running 'make dt_binding_check' on your patch:
>
> yamllint warnings/errors:
>
> dtschema/dtc warnings/errors:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/i2c/i2c-mux-mule.example.dtb: fan@18: '#cooling-cells' does not match any of the regexes: 'pinctrl-[0-9]+'


Currently ti,amc6821 uses trivial devices dt-bindings which does not 
support "#cooling-cells". We can fix this in a different patch though.


Best regards

Farouk