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

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Message-Id: <20250429-wip-bl-ad7606-calibration-v1-1-eb4d4821b172@baylibre.com>
Date: Tue, 29 Apr 2025 15:06:45 +0200
From: Angelo Dureghello <adureghello@...libre.com>
To: 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, 
 Michael Hennerich <michael.hennerich@...log.com>, 
 devicetree@...r.kernel.org, Angelo Dureghello <adureghello@...libre.com>
Subject: [PATCH 1/5] Documentation: ABI: IIO: add calibphase_delay
 documentation

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
+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_available
+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

-- 
2.49.0