linux-kernel - Re: [PATCH v2] dt-bindings: trivial-devices: Document SPI measurement on LWE boards

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Message-ID: <20250326183826.5e3d5340@wsk>
Date: Wed, 26 Mar 2025 18:38:26 +0100
From: Lukasz Majewski <lukma@...x.de>
To: Fabio Estevam <festevam@...il.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Guenter Roeck <linux@...ck-us.net>,
 Noah Wang <noahwang.wang@...look.com>, Michal Simek <michal.simek@....com>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, Naresh Solanki
 <naresh.solanki@...ements.com>
Subject: Re: [PATCH v2] dt-bindings: trivial-devices: Document SPI
 measurement on LWE boards

Hi Fabio,

> Hi  Lukasz,
> 
> On Wed, Mar 26, 2025 at 2:19 PM Lukasz Majewski <lukma@...x.de> wrote:
> >
> > The measurement device on Liebherr's (LWE) boards is used to monitor
> > the overall state of the device. It does have SPI interface to
> > communicate with Linux host via spidev driver. Document the SPI DT
> > binding as trivial SPI device.  
> 
> Can't you use lwn,bk4-spi instead?

Conceptually, those are two different devices.

> 
> Please check:
> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/misc/lwn,bk4-spi.yaml?h=v6.14




Best regards,

Lukasz Majewski

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