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Subject: Re: [PATCH v5 2/3] dt-bindings: media: imx274: Add optional input
 clock and supplies
To:     Jacopo Mondi <jacopo@jmondi.org>
CC:     <thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
        <sakari.ailus@iki.fi>, <hverkuil@xs4all.nl>,
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From:   Sowjanya Komatineni <skomatineni@nvidia.com>
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On 9/3/20 5:55 AM, Jacopo Mondi wrote:
> Hello Sowjanya,
>
> On Tue, Sep 01, 2020 at 07:04:37PM -0700, Sowjanya Komatineni wrote:
>> This patch adds IMX274 optional external clock input and voltage
>> supplies to device tree bindings.
>>
>> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
>> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
>> ---
>>   .../devicetree/bindings/media/i2c/sony,imx274.yaml  | 21 +++++++++++++=
++++++++
>>   1 file changed, 21 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx274.yam=
l b/Documentation/devicetree/bindings/media/i2c/sony,imx274.yaml
>> index 7ae47a6..57e7176 100644
>> --- a/Documentation/devicetree/bindings/media/i2c/sony,imx274.yaml
>> +++ b/Documentation/devicetree/bindings/media/i2c/sony,imx274.yaml
>> @@ -25,6 +25,27 @@ properties:
>>     reset-gpios:
>>       maxItems: 1
>>
> I just sent an update to my json-schema conversion of this bindings
> document (not yet on patchwork, sorry) and Sakari pointed me to the
> fact in between my v2 and my v4 this patch from you went in:
> 4ea3273d24b ("dt-bindings: media: imx274: Add optional input clock and su=
pplies")
>
> I should probably now update my bindings conversion patch, basically
> taking in what you've done here, but I would have one question.
>
>> +  clocks:
>> +    maxItems: 1
>> +    description: Reference to the sensor input clock
>> +
>> +  clock-names:
>> +    maxItems: 1
>> +    items:
>> +      - const: inck
>> +
>> +  vana-supply:
>> +    description:
>> +      Analog voltage supply, 2.8 volts
>> +
>> +  vdig-supply:
>> +    description:
>> +      Digital IO voltage supply, 1.8 volts
>> +
>> +  vddl-supply:
>> +    description:
>> +      Digital core voltage supply, 1.2 volts
> 4ea3273d24b introduced these regulators as VANA-supply, VDIG-supply
> and VDDL-supply (please note the upper-case names). This version uses
> lower-case ones instead. Is this intentional ? The driver currently
> does not parse any of these if I'm not mistaken, but as the bindings
> in textual form defines an ABI which should be preserved during the
> conversion to json-schema, should these be kept in upper-case ?
>
> Thanks
>     j

Yes, based on feedback lower case was recommended. So, changed to use=20
lower-case names.

These properties were not used by driver currently and from my prior=20
series only dt-binding got merged as=C2=A0 no feedback was received on it f=
or=20
all prior versions.

So, should be ok to change to lower-case as there properties are=20
introduced now and driver update using these properties is under review

>> +
>>     port:
>>       type: object
>>       description: |
>> --
>> 2.7.4
>>