Re: [PATCH 1/2] dt-bindings: hwmon: Introduce ADS71x8

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On Fri, 30 Aug 2024 07:30:16 -0700
Guenter Roeck <linux@xxxxxxxxxxxx> wrote:

> On 8/30/24 06:14, Conor Dooley wrote:
> > Hey Tobias, Guenter, Jonathan,
> > 
> > On Fri, Aug 30, 2024 at 11:49:53AM +0000, Sperling, Tobias wrote:  
> >>  From b2e04ce5500faf274654be5284be9db4f3abefce Mon Sep 17 00:00:00 2001
> >> From: Tobias Sperling <tobias.sperling@xxxxxxxxxxx>
> >> Date: Fri, 23 Aug 2024 12:08:33 +0200
> >> Subject: [PATCH 1/2] dt-bindings: hwmon: Introduce ADS71x8
> >>
> >> Add documentation for the driver of ADS7128 and ADS7138 12-bit, 8-channel
> >> analog-to-digital converters. These ADCs have a wide operating range and
> >> a wide feature set. Communication is based on an I2C interface.
> >> The driver provides the functionality of manually reading single channels
> >> or sequentially reading all channels automatically.
> >>
> >> Signed-off-by: Tobias Sperling <tobias.sperling@xxxxxxxxxxx>
> >> ---
> >>   .../devicetree/bindings/hwmon/ti,ads71x8.yaml |  85 +++++++++++  
> > 
> > If this is a "generic" adc, why is it going into hwmon?
> > I would have expected this to be in iio/adc, and use more typical adc
> > bindings, even if the driver is in hwmon.
> > 
> > Guenter/Jonathan wdyt?
> >   
> 
> Same thought here. While the chip supports limits, making it suitable for
> hardware monitoring, its primary use seems to be as ADC, not as hardware
> monitoring device. The hardware monitoring API isn't well suited for the
> fast sample rate supported by this chip.

Agreed, looks like a typical IIO ADC.

If the particular board needs it for hardware monitoring we have
the bridge that should work for that (iio-hwmon).

Jonathan

> 
> Guenter
> 





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