Re: [PATCH v12 11/11] Documentation: ABI: testing: add common ABI file for iio/frequency

[Jonathan Cameron <jic23@kernel.org>]

On Sun, 10 May 2026 13:42:29 +0100
Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@kernel.org> wrote:

> From: Rodrigo Alencar <rodrigo.alencar@analog.com>
> 
> Add ABI documentation file for PLL/DDS devices with frequency_resolution
> sysfs entry attribute used by both ADF4350 and ADF41513.
> 
> Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
> ---
>  Documentation/ABI/testing/sysfs-bus-iio-frequency         | 11 +++++++++++
>  Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 | 10 ----------
>  2 files changed, 11 insertions(+), 10 deletions(-)
> 
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency b/Documentation/ABI/testing/sysfs-bus-iio-frequency
> new file mode 100644
> index 000000000000..1ce8ae578fd6
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency
> @@ -0,0 +1,11 @@
> +What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution
> +KernelVersion:	6.20
FWIW Sashiko correctly points out that moving documentation doesn't change the kernel version
in which it wsa introduced.  So this should be 3.4.0

> +Contact:	linux-iio@vger.kernel.org
> +Description:
> +		Stores channel Y frequency resolution/channel spacing in Hz for PLL
> +		devices. The given value directly influences the operating mode when
> +		fractional-N synthesis is required, as it derives values for
> +		configurable modulus parameters used in the calculation of the output
> +		frequency. It is assumed that the algorithm that is used to compute
> +		the various dividers, is able to generate proper values for multiples
> +		of channel spacing.
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
> index 1254457a726e..76987a119feb 100644
> --- a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
> +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
> @@ -1,13 +1,3 @@
> -What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution
> -KernelVersion:	3.4.0
> -Contact:	linux-iio@vger.kernel.org
> -Description:
> -		Stores channel Y frequency resolution/channel spacing in Hz.
> -		The value given directly influences the MODULUS used by
> -		the fractional-N PLL. It is assumed that the algorithm
> -		that is used to compute the various dividers, is able to
> -		generate proper values for multiples of channel spacing.
> -
>  What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency
>  KernelVersion:	3.4.0
>  Contact:	linux-iio@vger.kernel.org
>