linux-kernel - Re: [PATCH v11 3/9] dt-bindings: power: supply: max17042: split on 2 files

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Message-ID: <c3270109-406f-49bd-9c11-e323d1b6e84d@kernel.org>
Date: Wed, 18 Dec 2024 08:56:06 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Dzmitry Sankouski <dsankouski@...il.com>
Cc: Sebastian Reichel <sre@...nel.org>, Chanwoo Choi <cw00.choi@...sung.com>,
 Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Pavel Machek <pavel@....cz>,
 Hans de Goede <hdegoede@...hat.com>,
 Marek Szyprowski <m.szyprowski@...sung.com>,
 Sebastian Krzyszkowiak <sebastian.krzyszkowiak@...i.sm>,
 Purism Kernel Team <kernel@...i.sm>, linux-pm@...r.kernel.org,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-input@...r.kernel.org, linux-leds@...r.kernel.org
Subject: Re: [PATCH v11 3/9] dt-bindings: power: supply: max17042: split on 2
 files

On 11/12/2024 15:59, Dzmitry Sankouski wrote:
> Ah, indeed, the device tree in this and previous patches doesn't
> reflect hardware wiring.
> 
> MAX77705 fuel gauge has a separate i2c address, i.e. I may move it out of the
> MAX77705 MFD node. However, the device on that address has additional features,
> like measuring system and input current, which is out of fuel gauge
> responsibility.

This is fuel gauge job.

> 
> So I guess I should create another MFD for fuel gauge, i. e. max77705 example
> would look like:
> 
> ...
>   pmic@66 {
>     compatible = "maxim,max77705";
> ...
>   };
> 
>   meter@36 {
>     compatible = "maxim,max77705-meter";
> 
No resources here, so not a MFD. This is one device.

Best regards,
Krzysztof