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Message-ID: <20250220135429.8615-15-antoniu.miclaus@analog.com>
Date: Thu, 20 Feb 2025 15:54:24 +0200
From: Antoniu Miclaus <antoniu.miclaus@...log.com>
To: <jic23@...nel.org>, <robh@...nel.org>, <conor+dt@...nel.org>,
        <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC: Antoniu Miclaus <antoniu.miclaus@...log.com>
Subject: [PATCH 14/14] Documentation: ABI: testing: ad4080 docs

Add documentation for the ad4080 attributes.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
---
 .../ABI/testing/sysfs-bus-iio-adc-ad4080      | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080
new file mode 100644
index 000000000000..e37bfba0e989
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080
@@ -0,0 +1,55 @@
+What:		/sys/bus/iio/devices/iio:deviceX/lvds_sync
+Date:		February 2025
+KernelVersion:
+Contact:	linux-iio@...r.kernel.org
+Description:
+		This attribute handles the data synchronization process.Because the CNV
+		signal is not taken into account by the FPGA when capturing the data, we
+		need a process that configures the ADC to output pattern data, writes the
+		SYNC bit in the axi_adc register map, waits until the custom HDL syncs the
+		data correctly, and then changes the output mode to analog data instead of
+		the fixed pattern.
+
+What:		/sys/bus/iio/devices/iio:deviceX/lvds_lvds
+Date:		February 2025
+KernelVersion:
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Configures the signal type of the CNV signal. The value can be either CMOS
+		(lvds_cnv=0) or LVDS (lvds_cnv=1).
+
+What:		/sys/bus/iio/devices/iio:deviceX/filter_sel
+Date:		February 2025
+KernelVersion:
+Contact:	linux-iio@...r.kernel.org
+Description:
+		This attribute enables the digital filter functionality of the AD4080.In
+		order to capture data correctly, the function must configure the ADC
+		through SPI to select the filter type and enable data capture in filter
+		mode through axi_adc(In this mode, data is gated by a signal generated by
+		the AD4080 (GPIO1 and is not continuous as it is when the filter is
+		disabled).
+
+What:		/sys/bus/iio/devices/iio:deviceX/filter_sel_available
+Date:		February 2025
+KernelVersion:
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Return the available filter modes that can be set.
+
+What:		/sys/bus/iio/devices/iio:deviceX/sinc_dec_rate
+Date:		February 2025
+KernelVersion:
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Set the filter’s decimation rate.
+
+What:		/sys/bus/iio/devices/iio:deviceX/sinc_dec_rate_available
+Date:		February 2025
+KernelVersion:
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Return the available filter's decimation rates.
+
+
+
-- 
2.48.1


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