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Message-ID: <20210326211908.GA3876801@robh.at.kernel.org>
Date: Fri, 26 Mar 2021 15:19:08 -0600
From: Rob Herring <robh@...nel.org>
To: Oleksij Rempel <o.rempel@...gutronix.de>
Cc: Jonathan Cameron <jic23@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Pengutronix Kernel Team <kernel@...gutronix.de>,
David Jander <david@...tonic.nl>,
Robin van der Gracht <robin@...tonic.nl>,
linux-iio@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald-Stadler <pmeerw@...erw.net>,
Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH v4 1/3] dt-bindings:iio:adc: add generic settling-time-us
and oversampling-ratio channel properties
On Mon, Mar 22, 2021 at 04:06:06PM +0100, Oleksij Rempel wrote:
> Settling time and over sampling is a typical challenge for different IIO ADC
> devices. So, introduce channel specific settling-time-us and oversampling-ratio
> properties to cover this use case.
>
> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
> ---
> Documentation/devicetree/bindings/iio/adc/adc.yaml | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml
> index 912a7635edc4..66fd4b45f097 100644
> --- a/Documentation/devicetree/bindings/iio/adc/adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml
> @@ -39,4 +39,13 @@ properties:
> The first value specifies the positive input pin, the second
> specifies the negative input pin.
>
> + settling-time-us:
> + $ref: /schemas/types.yaml#/definitions/uint32
Don't need a type for properties with a standard unit suffix.
> + description:
> + Time between enabling the channel and firs stable readings.
> +
> + oversampling-ratio:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: Number of data samples which are averaged for each read.
> +
> additionalProperties: true
> --
> 2.29.2
>
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