linux-kernel - Re: [PATCH v2 3/4] dt-bindings: iio: adc: ad4080: add AD4880 support

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Message-ID: <6b33ddfce874006bd10e223701802dec52fdddf9.camel@gmail.com>
Date: Mon, 09 Feb 2026 16:43:51 +0000
From: Nuno Sá <noname.nuno@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Antoniu Miclaus
	 <antoniu.miclaus@...log.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>, Michael Hennerich	
 <Michael.Hennerich@...log.com>, Jonathan Cameron <jic23@...nel.org>, David
 Lechner <dlechner@...libre.com>, Nuno Sá
 <nuno.sa@...log.com>, Andy Shevchenko	 <andy@...nel.org>, Rob Herring
 <robh@...nel.org>, Krzysztof Kozlowski	 <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Olivier Moysan	 <olivier.moysan@...s.st.com>, Mark
 Brown <broonie@...nel.org>, 	linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, 	linux-kernel@...r.kernel.org,
 linux-spi@...r.kernel.org
Subject: Re: [PATCH v2 3/4] dt-bindings: iio: adc: ad4080: add AD4880 support

On Sun, 2026-02-08 at 10:20 +0100, Krzysztof Kozlowski wrote:
> On 08/02/2026 10:16, Nuno Sá wrote:
> > > >  
> > > >    io-backends:
> > > > -    maxItems: 1
> > > > +    minItems: 1
> > > > +    maxItems: 2
> > > 
> > > Instead list the items with minItems, so the order is defined.
> > > 
> > 
> > Also looks like we now need 'io-backend-names'.
> 
> No. Just define the order here.
> 

Things are still not really defined on the code side (I know bindings don't care about the driver
side) but io-backend-names is a standard property and we might actually end up using it so that
we know how to map the backend to a given channel. Unless what you're saying is that in here, -names
doesn't really makes sense given that we just want n io-backends for n adc channels and having 
-names as "adc1", "adc2", "adcn" is arguably useless.

- Nuno Sá
> Best regards,
> Krzysztof