linux-kernel - Re: [PATCH v3 2/2] iio: adc: adding support for MCP3564 ADC

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Message-ID: <1c0f578669737e7f27a8ff9e0416b6c96eb917f2.camel@microchip.com>
Date:   Fri, 18 Aug 2023 16:29:26 +0000
From:   <Marius.Cristea@...rochip.com>
To:     <jic23@...nel.org>
CC:     <devicetree@...r.kernel.org>, <conor+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <lars@...afoo.de>,
        <linux-iio@...r.kernel.org>, <robh+dt@...nel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] iio: adc: adding support for MCP3564 ADC

Hi Jonathan,

> 
> > @@ -0,0 +1,53 @@
> > +What:               
> > /sys/bus/iio/devices/iio:deviceX/boost_current
> > +KernelVersion:       6.4
> > +Contact:     linux-iio@...r.kernel.org
> > +Description:
> > +             This attribute is used to set the biasing circuit of
> > the
> > +             Delta-Sigma modulator. The different BOOST settings
> > are applied
> > +             to the entire modulator circuit, including the
> > voltage reference
> > +             buffers.
> 
> Units?  Should be  mA given that is what we use for other current
> attributes
> in IIO.
> 

This should have no units because is a "gain" for the bias current. I
think it will be better to change the name of the attribute to
"boost_current_gain".


> This one may cause us problems with generality of the description if
> we reuse
> if for other devices (and hence move it to the more general files),
> but we
> can figure this out at the time.
> 
> > 

Thanks and Best Regards,
Marius