[PATCH v6 3/3] Documentation: ABI: testing: rtq6056: Update ABI docs

[cy_huang]

From: ChiYuan Huang <cy_huang@xxxxxxxxxxx>

Add documentation for the usage of voltage channel integration time.

Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-bus-iio | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index d4ccc68..1f7d327 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -2030,3 +2030,13 @@ Description:
 		Available range for the forced calibration value, expressed as:
 
 		- a range specified as "[min step max]"
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_integration_time
+KernelVersion:	5.20
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		For voltage sensing hardware, there may be different time between
+		channel conversion and sample update. 'Integration time' is used to
+		specify the channel internal conversion time. And sample update
+		interval is equal to average sample count multiple integration time.
+		Unit as microsecond.
-- 
2.7.4