linux-kernel - Re: [PATCH 1/4] dt-bindings: iio: adc: Add the Renesas RZ/N1 ADC

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Message-ID: <20251017090742.49f2d628@bootlin.com>
Date: Fri, 17 Oct 2025 09:07:42 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: 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>, Geert
 Uytterhoeven <geert+renesas@...der.be>, Magnus Damm
 <magnus.damm@...il.com>, Liam Girdwood <lgirdwood@...il.com>, Mark Brown
 <broonie@...nel.org>, linux-iio@...r.kernel.org,
 linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, Pascal Eberhard <pascal.eberhard@...com>,
 Miquel Raynal <miquel.raynal@...tlin.com>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 1/4] dt-bindings: iio: adc: Add the Renesas RZ/N1 ADC

On Thu, 16 Oct 2025 19:17:30 +0200
Wolfram Sang <wsa+renesas@...g-engineering.com> wrote:

> > +description:
> > +  The Renesas RZ/N1 ADC controller available in the Renesas RZ/N1 SoCs family
> > +  can use up to two internal ACD cores (ADC1 and ADC2) those internal cores are  
> 
> ADC cores?

Sure, will be fixed.

> 
> > +  handled through ADC controller virtual channels.
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - renesas,r9a06g032-adc   # RZ/N1D
> > +      - const: renesas,rzn1-adc  
> 
> Do you know of other SoCs with this IP core? If it is only RZ/N for now,
> we could go with const for N1D. All other N1 variants cannot run Linux
> because of no SDRAM controller.
> 

I know only about RZ/N1 family.

I will keep only "renesas,r9a06g032-adc" in the next iteration.

Best regards,
Hervé