aboutsummaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-15 12:59:53 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-15 12:59:53 +0200
commitaa444bd230f832d4e75cfac826255cfd66f545c3 (patch)
treeea3a369a17bc486030d653f5faa7223bb1c50841 /Documentation
parent8a5776a5f49812d29fe4b2d0a2d71675c3facf3f (diff)
parentca4c302398963c0cae29bc168e44cf91e40ff0d3 (diff)
download96b-common-aa444bd230f832d4e75cfac826255cfd66f545c3.tar.gz
Merge tag 'iio-fixes-for-4.14b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes: Second set of IIO fixes for the 4.14 cycle. * ade7759 - Fix a signed extension bug. * as3935 - The default noise and watch dog settings were such that the device was unusuable in most applications. Add device tree parameters to allow it to be configured to something that will actually work. * at91-sama5d2 adc - Fix handling of legacy device trees that don't provide the new trigger edge property. * dln2-adc - Fix a missing Kconfig dependency on IIO_TRIGGERED_BUFFER. * dummy driver - Add a missing break so that writing in_voltage0_thresh_rising_en doesn't always result in an error. * zpa2326 - Drop a test for an always true condition so that gcc won't spit out and unused variable warning.
Diffstat (limited to 'Documentation')
-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>;
};