linux-kernel - Re: [PATCH 1/5] Documentation: ABI: IIO: add calibphase

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Message-ID: <4645ae3e0c3bb1ada9d4cadce77b64fe5e651596.camel@gmail.com>
Date: Wed, 30 Apr 2025 06:40:59 +0100
From: Nuno Sá <noname.nuno@...il.com>
To: Angelo Dureghello <adureghello@...libre.com>, Jonathan Cameron
 <jic23@...nel.org>, David Lechner <dlechner@...libre.com>, Nuno
 Sá <nuno.sa@...log.com>, Andy Shevchenko
 <andy@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>, Michael Hennerich
 <Michael.Hennerich@...log.com>, Rob Herring <robh@...nel.org>, Krzysztof
 Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/5] Documentation: ABI: IIO: add calibphase_delay
 documentation

On Tue, 2025-04-29 at 15:06 +0200, Angelo Dureghello wrote:
> From: Angelo Dureghello <adureghello@...libre.com>
> 
> Add new IIO calibphase_delay documentation.
> 
> The delay suffix is added to specify that the phase, generally in
> radiants, is for this case (needed from ad7606) in nanoseconds.
> 
> Signed-off-by: Angelo Dureghello <adureghello@...libre.com>
> ---
>  Documentation/ABI/testing/sysfs-bus-iio | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio
> b/Documentation/ABI/testing/sysfs-bus-iio
> index
> 33c09c4ac60a4feec82308461643134f5ba84b66..f233190d48a34882b7fed2d961141cc6bec3ddb2
> 100644
> --- a/Documentation/ABI/testing/sysfs-bus-iio
> +++ b/Documentation/ABI/testing/sysfs-bus-iio
> @@ -559,6 +559,26 @@ Description:
>  		- a small discrete set of values like "0 2 4 6 8"
>  		- a range specified as "[min step max]"
>  
> +What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibphase_delay

Not sure if I'm too convinced on the _delay suffix

> +KernelVersion:  6.16
> +Contact:        linux-iio@...r.kernel.org
> +Description:
> +		Hardware applied calbiration phase (assumed to fix errors that are
> +		introduced from external filters).
> +		For the ad7606 ADC series, this value is intended as a time delay,
> +		as an integer plus nanoseconds.
> +
> +What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibphase_delay_avai
> lable
> +KernelVersion:	6.16
> +Contact:	linux-iio@...r.kernel.org
> +Description:
> +		Available values of calibphase_delay. Maybe expressed as:
> +
> +		- a range specified as "[min step max]"
> +
> +		If shared across all channels, <type>_calibphase_delay_available
> +		is used.
> +
>  What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
>  What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
>  What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
>