linux-kernel - Re: [PATCH v2 1/2] dt-bindings: iio: adf4371: add rdiv2 and doubler

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Message-ID: <20241125-rotting-brim-162582b5ad42@spud>
Date: Mon, 25 Nov 2024 18:23:53 +0000
From: Conor Dooley <conor@...nel.org>
To: Antoniu Miclaus <antoniu.miclaus@...log.com>
Cc: jic23@...nel.org, robh@...nel.org, conor+dt@...nel.org,
	linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: iio: adf4371: add rdiv2 and doubler

On Mon, Nov 25, 2024 at 01:26:40PM +0200, Antoniu Miclaus wrote:
> Add support for reference doubler enable and reference divide by 2
> clock.

You're still missing an explanation here for why these cannot be derived
from the required output frequency vs the input frequency.

> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
> ---
> no changes in v2. (added cover letter as requested)
>  .../devicetree/bindings/iio/frequency/adf4371.yaml    | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml b/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
> index 1cb2adaf66f9..ef241c38520c 100644
> --- a/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
> +++ b/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
> @@ -40,6 +40,17 @@ properties:
>        output stage will shut down until the ADF4371/ADF4372 achieves lock as
>        measured by the digital lock detect circuitry.
>  
> +  adi,reference-doubler-enable:
> +    type: boolean
> +    description:
> +      If this property is present, the reference doubler block is enabled.
> +
> +  adi,adi,reference-div2-enable:
> +    type: boolean
> +    description:
> +      If this property is present, the reference divide by 2 clock is enabled.
> +      This feature can be used to provide a 50% duty cycle signal to the PFD.
> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.47.0
> 

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