linux-kernel - [PATCH RFC 8/8] iio: ABI: add DAC sysfs synchronous

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Message-Id: <20240829-wip-bl-ad3552r-axi-v0-v1-8-b6da6015327a@baylibre.com>
Date: Thu, 29 Aug 2024 14:32:06 +0200
From: Angelo Dureghello <adureghello@...libre.com>
To: Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Olivier Moysan <olivier.moysan@...s.st.com>
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, dlechner@...libre.com, 
 Angelo Dureghello <adureghello@...libre.com>
Subject: [PATCH RFC 8/8] iio: ABI: add DAC sysfs synchronous_mode parameter

From: Angelo Dureghello <adureghello@...libre.com>

Some DACs as ad3552r need a synchronous mode setting, adding
this parameter for ad3552r and for future use on other DACs,
if needed.

Signed-off-by: Angelo Dureghello <adureghello@...libre.com>
---
 Documentation/ABI/testing/sysfs-bus-iio-dac | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac b/Documentation/ABI/testing/sysfs-bus-iio-dac
index 810eaac5533c..a3012baf90b3 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-dac
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac
@@ -59,3 +59,10 @@ Description:
 		multiple predefined symbols. Each symbol corresponds to a different
 		output, denoted as out_voltageY_rawN, where N is the integer value
 		of the symbol. Writing an integer value N will select out_voltageY_rawN.
+
+What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_synchronous_mode
+KernelVersion:	6.13
+Contact:	linux-iio@...r.kernel.org
+Description:
+		This attribute allows a specific synchronization mode, mainly
+		intended for DACs where multiple synchronization methods are available.

-- 
2.45.0.rc1