linux-kernel - Re: [PATCH] dt-bindings: iio: temperature: Add DT bindings for TMP006

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Message-ID: <20230513195030.57b7939e@jic23-huawei>
Date:   Sat, 13 May 2023 19:50:30 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Anup Sharma <anupnewsmail@...il.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Peter Meerwald <pmeerw@...erw.net>, broonie@...nel.org,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: iio: temperature: Add DT bindings for
 TMP006

On Fri, 12 May 2023 08:28:29 +0200
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:

> On 11/05/2023 21:06, Anup Sharma wrote:
> > On Thu, May 11, 2023 at 11:28:50AM +0200, Krzysztof Kozlowski wrote:  
> >> On 10/05/2023 20:56, Anup Sharma wrote:  
> >>> Add devicetree binding document for TMP006, IR thermopile sensor.  
> >>
> >> Why? Where is any user of this? DTS? Driver?
> >>  
> > 
> > The support for TMP006 is available at driver/iio/temperature  
> 
> There is no such compatible in the kernel. If you add OF support, you
> should change the driver.

(Very) old driver, so it uses the fallback method that i2c provides to bind to
the compatible with the vendor id dropped via i2c_device_id entry.

Having said that, I'd also prefer the addition of an explicit of_device_id table.
As there is only one supported device in this driver should be trivial.

Thanks,

Jonathan


> 
> 
> Best regards,
> Krzysztof
>