linux-kernel - Re: [PATCH V2 5/5] dt-bindings: iio/adc: ingenic: add the JZ4760(B) socs to the sadc Documentation

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Date:   Fri, 23 Jul 2021 17:16:57 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Christophe Branchereau <cbranchereau@...il.com>
CC:     <paul@...pouillou.net>, <jic23@...nel.org>, <lars@...afoo.de>,
        <linux-mips@...r.kernel.org>, <linux-iio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <robh+dt@...nel.org>,
        <devicetree@...r.kernel.org>, <linux@...ck-us.net>,
        <contact@...ur-rojek.eu>
Subject: Re: [PATCH V2 5/5] dt-bindings: iio/adc: ingenic: add the JZ4760(B)
 socs to the sadc Documentation

On Fri, 23 Jul 2021 10:58:13 +0200
Christophe Branchereau <cbranchereau@...il.com> wrote:

> The jz4760b variant differs slightly from the jz4760, add a property to 
> let users sample the internal divider if needed and document it.
> 
> Signed-off-by: Christophe Branchereau <cbranchereau@...il.com>
> ---
>  .../devicetree/bindings/iio/adc/ingenic,adc.yaml         | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
> index 433a3fb55a2e..0dc42959a64f 100644
> --- a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
> @@ -23,6 +23,8 @@ properties:
>      enum:
>        - ingenic,jz4725b-adc
>        - ingenic,jz4740-adc
> +      - ingenic,jz4760-adc
> +      - ingenic,jz4760b-adc
>        - ingenic,jz4770-adc
>  
>    '#io-channel-cells':
> @@ -43,6 +45,13 @@ properties:
>    interrupts:
>      maxItems: 1
>  
> +  ingenic,use-internal-divider:
> +    description:
> +      This property can be used to set VBAT_SEL in the JZ4760B CFG register
> +      to sample the battery voltage from the internal divider. If absent, it
> +      will sample the external divider.
> +    type: boolean
> +
See reply to the v1 patch for hint on how to 'enforce' that this
only exists for the jz4760b

Thanks,

Jonathan

>  required:
>    - compatible
>    - '#io-channel-cells'