linux-kernel - Re: [PATCH v5 1/2] dt-bindings: iio: dac: Add adi,ad3552r.yaml

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Date:   Mon, 8 Nov 2021 09:32:08 +0100
From:   Lars-Peter Clausen <lars@...afoo.de>
To:     "Chindris, Mihail" <Mihail.Chindris@...log.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "broonie@...nel.org" <broonie@...nel.org>
Cc:     "Hennerich, Michael" <Michael.Hennerich@...log.com>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "Sa, Nuno" <Nuno.Sa@...log.com>,
        "Bogdan, Dragos" <Dragos.Bogdan@...log.com>
Subject: Re: [PATCH v5 1/2] dt-bindings: iio: dac: Add adi,ad3552r.yaml

On 11/8/21 9:29 AM, Chindris, Mihail wrote:
> ...
>> +patternProperties:
>> +  "^channel@([0-1])$":
>> +    type: object
>> +    description: Configurations of the DAC Channels
>> +    properties:
>> +      reg:
>> +          description: Channel number
>> +          enum: [0, 1]
>> +
>> +      custom-output-range-config:
> Copy unanswered comment from V3
>
>>>> Not a generic property so I think this needs an adi prefix.
>>>> Jonathan
>>> I tried with adi prefix but I get weird errors while running dt_binding_check for properties with adi prefix and with type:object
>>> Do you have any suggestion for this issues?
>>>
>>> Mihail
>>>
> @Rob
> Jonathan

I had the same problem with the bindings for the xadc driver: 
https://www.spinics.net/lists/devicetree/msg382081.html


>> +        type: object
>> +        description: Configuration of custom range when
>> +          adi,output-range-microvolt is not present.
>> +          The formulas for calculation the output voltages are
>> +            Vout_fs = 2.5 + [(GainN + Offset/1024) * 2.5 * Rfbx * 1.03]
>> +            Vout_zs = 2.5 - [(GainP + Offset/1024) * 2.5 * Rfbx * 1.03]
> ...