linux-kernel - Re: [PATCH v6 2/3] dt-bindings: iio: proximity: Add TYHX HX9023S

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Date: Sat, 22 Jun 2024 13:56:42 +0800
From: Yasin Lee <yasin.lee.x@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Jonathan Cameron <jic23@...nel.org>,
 Lars-Peter Clausen <lars@...afoo.de>, yasin.lee.x@...look.com
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-iio@...r.kernel.org
Subject: Re: [PATCH v6 2/3] dt-bindings: iio: proximity: Add TYHX HX9023S


On 2024/6/21 18:12, Krzysztof Kozlowski wrote:

Hi ,Krzysztof
Thank you for your reply. I have some questions inline.

Best regards,
Yasin

> On 21/06/2024 09:40, Yasin Lee wrote:
>> A capacitive proximity sensor
>>
>> Signed-off-by: Yasin Lee <yasin.lee.x@...il.com>
>> ---
>>   .../bindings/iio/proximity/tyhx,hx9023s.yaml       | 115 +++++++++++++++++++++
>>   1 file changed, 115 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml b/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml
>> new file mode 100644
>> index 000000000000..beca70ce7609
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml
>> @@ -0,0 +1,115 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/iio/proximity/tyhx,hx9023s.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: TYHX HX9023S capacitive proximity sensor
>> +
>> +maintainers:
>> +  - Yasin Lee <yasin.lee.x@...il.com>
>> +
>> +description: |
>> +  TYHX HX9023S proximity sensor. Datasheet can be found here:
>> +    http://www.tianyihexin.com/ueditor/php/upload/file/20240614/1718336303992081.pdf
>> +
>> +allOf:
>> +  - $ref: /schemas/iio/iio.yaml#
> Which part of iio.yaml binding do you use here? I cannot find anything,
> so this looks wrong.	
>

I will remove this reference.


>> +
>> +properties:
>> +  compatible:
>> +    const: tyhx,hx9023s
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    description:
>> +      Generated by device to announce preceding read request has finished
>> +      and data is available or that a close/far proximity event has happened.
>> +    maxItems: 1
>> +
>> +  vdd-supply: true
>> +
>> +  "#address-cells":
>> +    const: 1
>> +
>> +  "#size-cells":
>> +    const: 0
>> +
>> +patternProperties:
>> +  "^channel@[0-4]$":
>> +    $ref: /schemas/iio/adc/adc.yaml
>> +    type: object
>> +
>> +    properties:
>> +      reg:
>> +        minimum: 0
>> +        maximum: 4
>> +        description: The channel number.
>> +
>> +      input-channel:
> Isn't this duplicating single-channel property?
>
> Where is this property defined (which common schema)?
>
|input-channel| is indeed intended for single-ended configuration, but I 
couldn't find a definition

or reference for |single-channel| anywhere. If possible, should I rename 
|input-channel| to |single-channel|?


>> +        $ref: /schemas/types.yaml#/definitions/uint32
>> +        minimum: 0
>> +        maximum: 4
>> +        description:
>> +          Specify the input pin used in single-ended configuration.
>> +
>> +      diff-channels: true
>> +
>> +    oneOf:
>> +      - required:
>> +          - input-channel
>> +      - required:
>> +          - diff-channels
>> +
>> +    required:
>> +      - reg
>> +
>> +    additionalProperties: false
>> +
>> +required:
>> +  - compatible
>> +  - vdd-supply
>> +  - reg
> Keep the same order as in properties.


OK, I will correct the order in the next version.


>> +
>> +unevaluatedProperties: false
>> +
>
> Best regards,
> Krzysztof
>