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Message-Id: <20250506-wip-bl-ad7606-calibration-v3-1-6eb7b6e72307@baylibre.com>
Date: Tue, 06 May 2025 23:03:47 +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 v3 1/5] Documentation: ABI: IIO: add calibconv_delay
documentation
From: Angelo Dureghello <adureghello@...libre.com>
Add new IIO calibconv_delay documentation.
The ad7606 implements a phase calibation feature, in nanoseconds.
Being this a time delay, using the conv_delay suffix.
Signed-off-by: Angelo Dureghello <adureghello@...libre.com>
---
Documentation/ABI/testing/sysfs-bus-iio | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 190bfcc1e836b69622692d7c056c0092e00f1a9b..9ced916895fbef146d46d17b5fdc932784b4c1df 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -559,6 +559,30 @@ 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_convdelay
+KernelVersion: 6.16
+Contact: linux-iio@...r.kernel.org
+Description:
+ Delay of start of conversion in seconds from common reference
+ point shared by all channels. Can be writable when used to
+ compensate for delay variation introduced by external filters
+ feeding a simultaneous sampling ADC.
+
+ I.e., for the ad7606 ADC series, this value is intended as a
+ configurable time delay in seconds, to correct delay introduced
+ by an optional external filtering circuit.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay_available
+KernelVersion: 6.16
+Contact: linux-iio@...r.kernel.org
+Description:
+ Available values of convdelay. Maybe expressed as:
+
+ - a range specified as "[min step max]"
+
+ If shared across all channels, <type>_calibconv_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
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