diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index c42fe980f395a..d709a51819806 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -72,6 +72,13 @@ Description:
 		calculated by firmware from other sensor readings, rather then
 		being a raw sensor reading.
 
+		For accelerometers used in 2-in-1s with 360° (yoga-style) hinges,
+		which have an accelerometer in both their base and their display,
+		the following standardized labels are used:
+
+		* "accel-base"
+		* "accel-display"
+
 What:		/sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
 KernelVersion:	4.5
 Contact:	linux-iio@vger.kernel.org