linux-kernel - Re: [PATCH 1/2] dt-bindings: iio: tyhx,hx9023s: Add performance tuning configuration

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Message-ID: <bd02cd8f-fdb0-420e-8c3d-f050b1298a24@gmail.com>
Date: Thu, 26 Sep 2024 00:38:31 +0800
From: Yasin Lee <yasin.lee.x@...il.com>
To: Rob Herring <robh@...nel.org>
Cc: Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen
 <lars@...afoo.de>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: iio: tyhx,hx9023s: Add performance
 tuning configuration


On 9/25/24 05:59, Rob Herring wrote:
> On Mon, Sep 23, 2024 at 09:16:10AM +0800, Yasin Lee wrote:
>> When hardware design introduces significant sensor data noise,
>> performance can be improved by adjusting register settings.
>>
>> Signed-off-by: Yasin Lee <yasin.lee.x@...il.com>
>> ---
>>   .../devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml    | 14 ++++++++++++++
>>   1 file changed, 14 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml b/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml
>> index 64ce8bc8bd36..417fbc0bb205 100644
>> --- a/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml
>> +++ b/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml
>> @@ -28,6 +28,13 @@ properties:
>>   
>>     vdd-supply: true
>>   
>> +  tyhx,performance-tuning:
>> +    description:
>> +      Optional, When hardware design introduces significant sensor data noise,
>> +      performance can be improved by adjusting register settings, including
>> +      but not limited to sample integration time and average sample count.
>> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> 1 byte is valid? What about 10000? Add some constraints on the array
> size and the values if possible
>
Hi Rob,

Thank you for your feedback.

In the next version, I've added constraints on the number of elements in 
the tyhx,performance-tuning array, limiting it to between 2 and 512 
elements. Additionally, I updated the description to clarify that the 
number of elements must be even, as each pair represents a register 
address followed by a value.

Best regards,
Yasin Lee
>> +
>>     "#address-cells":
>>       const: 1
>>   
>> @@ -65,6 +72,13 @@ examples:
>>           interrupt-parent = <&pio>;
>>           interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
>>           vdd-supply = <&pp1800_prox>;
>> +        tyhx,performance-tuning = [00 00
>> +        02 17
>> +        0D 44
>> +        0E 44
>> +        0F 04
>> +        1F 65
>> +        21 65];
>>   
>>           #address-cells = <1>;
>>           #size-cells = <0>;
>>
>> -- 
>> 2.43.0
>>