linux-kernel - Re: [PATCH 1/3] dt-bindings: iio: adc: Add BD7910[0,1,2,3]

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Message-ID: <175ce750-7f5d-477c-8d18-dd418ba749be@gmail.com>
Date: Thu, 14 Aug 2025 12:57:07 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Matti Vaittinen <matti.vaittinen@...rohmeurope.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>, David Heidelberg <david@...t.cz>,
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: iio: adc: Add BD7910[0,1,2,3]

On 14/08/2025 11:35, Matti Vaittinen wrote:
> The ROHM BD79100, BD79101, BD79102, BD79103 are very similar ADCs as the
> ROHM BD79104. The BD79100 has only 1 channel. BD79101 has 2 channels and
> the BD79102 has 4 channels. Both BD79103 and BD79104 have 4 channels,
> and, based on the data sheets, they seem identical from the software
> point-of-view.
> 
> Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
> ---
>   .../devicetree/bindings/iio/adc/rohm,bd79104.yaml     | 11 ++++++++++-
>   1 file changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/rohm,bd79104.yaml b/Documentation/devicetree/bindings/iio/adc/rohm,bd79104.yaml
> index f0a1347ba4db..6a6e6ab4aca3 100644
> --- a/Documentation/devicetree/bindings/iio/adc/rohm,bd79104.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/rohm,bd79104.yaml
> @@ -14,7 +14,16 @@ description: |
>   
>   properties:
>     compatible:
> -    const: rohm,bd79104
> +    oneOf:
> +      - items:
> +          - enum:
> +              - rohm,bd79100
> +              - rohm,bd79101
> +              - rohm,bd79102
> +              - rohm,bd79104
> +      - items:
> +          - const: rohm,bd79104
> +          - const: rohm,bd79103

Oops. I believe the order of the compatibles is wrong for the fallback.

>   
>     reg:
>       maxItems: 1

Yours,
	-- Matti