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

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Message-ID: <20240924215912.GA363446-robh@kernel.org>
Date: Tue, 24 Sep 2024 16:59:12 -0500
From: Rob Herring <robh@...nel.org>
To: Yasin Lee <yasin.lee.x@...il.com>
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 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 

> +
>    "#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
>