linux-kernel - Re: [PATCH v5 4/5] dt-bindings: iio: adc: ad7192: Add AD7194 support

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Message-ID: <7578692e-ec77-4045-8759-be89e3af0c3f@linaro.org>
Date: Thu, 18 Apr 2024 01:38:48 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Alisa-Dariana Roman <alisadariana@...il.com>,
 michael.hennerich@...log.com, linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: alexandru.tachici@...log.com, lars@...afoo.de, jic23@...nel.org,
 robh@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 lgirdwood@...il.com, broonie@...nel.org, andy@...nel.org,
 nuno.sa@...log.com, marcelo.schmitt@...log.com, bigunclemax@...il.com,
 dlechner@...libre.com, okan.sahin@...log.com, fr0st61te@...il.com,
 alisa.roman@...log.com, marcus.folkesson@...il.com, schnelle@...ux.ibm.com,
 liambeguin@...il.com
Subject: Re: [PATCH v5 4/5] dt-bindings: iio: adc: ad7192: Add AD7194 support

On 15/04/2024 15:08, Alisa-Dariana Roman wrote:
> On 14.04.2024 00:19, Krzysztof Kozlowski wrote:
>> On 13/04/2024 17:11, Alisa-Dariana Roman wrote:
>>> Unlike the other AD719Xs, AD7194 has configurable differential
>>> channels. The user can dynamically configure them in the devicetree.
>>>
>>> Also add an example for AD7194 devicetree.
>>>
>>> Signed-off-by: Alisa-Dariana Roman <alisa.roman@...log.com>
>>> ---
>>>   .../bindings/iio/adc/adi,ad7192.yaml          | 74 +++++++++++++++++++
>>>   1 file changed, 74 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
>>> index ba506af3b73e..855f0a2d7d75 100644
>>> --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
>>> +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
> 
> ...
> 
>>
>>> +  "^channel@[0-9]+$":
>>
>> Why restricting the pattern? If you have 256 channels, how are you going
>> to encode it?
> 
> Hi Krzysztof,
> 
> Thank you for your feedback! I applied the rest, but as for this one 
> isn't channel@1 -> channel@256 encoding sufficient?

@256, so 0x256 = 589, so a bit too much. The unit addresses are hex.


Best regards,
Krzysztof