linux-kernel - Re: [PATCH v2] dt-bindings: iio: afe: voltage-divider: Add io-channel-cells

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Date: Tue, 30 Jan 2024 17:18:53 +0530
From: Naresh Solanki <naresh.solanki@...ements.com>
To: Peter Rosin <peda@...ntia.se>
Cc: Jonathan Cameron <jic23@...nel.org>, 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>, 
	mazziesaccount@...il.com, linux-iio@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: iio: afe: voltage-divider: Add io-channel-cells

Hi Peter,


On Tue, 30 Jan 2024 at 17:12, Peter Rosin <peda@...ntia.se> wrote:
>
> Hi!
>
> 2024-01-30 at 12:18, Naresh Solanki wrote:
> > voltage-divider is always an iio consumer at the same time it is
> > optionally an iio provider.
> > Hence add #io-channel-cells
> > Also update example.
> >
> > Signed-off-by: Naresh Solanki <naresh.solanki@...ements.com>
> > ---
> >  .../bindings/iio/afe/voltage-divider.yaml          | 14 +++++++++++++-
> >  1 file changed, 13 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
> > index dddf97b50549..09f10d7c4e02 100644
> > --- a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
> > +++ b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
> > @@ -39,6 +39,13 @@ properties:
> >      description: |
> >        Channel node of a voltage io-channel.
> >
> > +  '#io-channel-cells':
> > +    description:
> > +      In addition to consuming the measurement services of an ADC,
>
> It doesn't really need to be an ADC. Anything with a voltage output
> channel works (in theory). But sure, normally it would be an ADC...
Ack
>
> > +      the voltage divider can act as an provider of measurement
>
> a provider
Ack

Will update as:
  '#io-channel-cells':
    description:
      In addition to consuming the measurement services of an a voltage output
      channel the voltage divider can act as a provider of measurement
      services to other devices.
    const: 1

Regards,
Naresh
>
> Cheers,
> Peter
>
> > +      services to other devices.
> > +    const: 1
> > +
> >    output-ohms:
> ...