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-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-proximity-as39358
-rw-r--r--Documentation/devicetree/bindings/iio/proximity/as3935.txt5
2 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935 b/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
index 33e96f740639..147d4e8a1403 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
+++ b/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
@@ -14,3 +14,11 @@ Description:
Show or set the gain boost of the amp, from 0-31 range.
18 = indoors (default)
14 = outdoors
+
+What /sys/bus/iio/devices/iio:deviceX/noise_level_tripped
+Date: May 2017
+KernelVersion: 4.13
+Contact: Matt Ranostay <matt.ranostay@konsulko.com>
+Description:
+ When 1 the noise level is over the trip level and not reporting
+ valid data
diff --git a/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
index 38d74314b7ab..b6c1afa6f02d 100644
--- a/Documentation/devicetree/bindings/iio/proximity/as3935.txt
+++ b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -16,6 +16,10 @@ Optional properties:
- ams,tuning-capacitor-pf: Calibration tuning capacitor stepping
value 0 - 120pF. This will require using the calibration data from
the manufacturer.
+ - ams,nflwdth: Set the noise and watchdog threshold register on
+ startup. This will need to set according to the noise from the
+ MCU board, and possibly the local environment. Refer to the
+ datasheet for the threshold settings.
Example:
@@ -27,4 +31,5 @@ as3935@0 {
interrupt-parent = <&gpio1>;
interrupts = <16 1>;
ams,tuning-capacitor-pf = <80>;
+ ams,nflwdth = <0x44>;
};