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Message-ID: <875763a8-fd58-4759-818c-b36f181ddc44@theobroma-systems.com>
Date: Thu, 2 May 2024 14:14:02 +0200
User-Agent: Mozilla Thunderbird
Subject: Re: [PATCH 2/7] dt-bindings: i2c: mux: mule: add dt-bindings for mule
 i2c multiplexer
To: Rob Herring <robh@kernel.org>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
 Peter Rosin <peda@axentia.se>, Andi Shyti <andi.shyti@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>,
 Quentin Schulz <quentin.schulz@theobroma-systems.com>,
 Heiko Stuebner <heiko@sntech.de>, linux-i2c@vger.kernel.org,
 linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org
References: <20240426-dev-mule-i2c-mux-v1-0-045a482f6ffb@theobroma-systems.com>
 <20240426-dev-mule-i2c-mux-v1-2-045a482f6ffb@theobroma-systems.com>
 <CAL_JsqJH-wD1BbSK=DmBtftpWT7YDbabmvgy1+PPii-8ziHTiQ@mail.gmail.com>
Content-Language: en-US
From: Farouk Bouabid <farouk.bouabid@theobroma-systems.com>
In-Reply-To: <CAL_JsqJH-wD1BbSK=DmBtftpWT7YDbabmvgy1+PPii-8ziHTiQ@mail.gmail.com>
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Hi Rob,

On 29.04.24 15:56, Rob Herring wrote:
> On Fri, Apr 26, 2024 at 11:50 AM Farouk Bouabid
> <farouk.bouabid@theobroma-systems.com> wrote:
>> This patch adds support for the Mule I2C multiplexer.
>>
>> Mule is an mcu that emulates a set of i2c devices which are reacheable
> MCU
>
> reachable
>
>> 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).
> Just to be sure, we need a complete binding for the MCU. Is this the
> only thing the MCU does?


Currently that is all the MCU does. We plan to add more features to the 
MCU firmware: Buzzer over i2c, watchdog over i2c ...


Best regards

Farouk