[PATCH 1/4] iio: ABI: temperature: Unify documentation for thermocouple fault detection.

[Jonathan Cameron <jic23@kernel.org>]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The kernel build docs do not support having multiple definitions for
the same sysfs filename.  Hence generalize the documentation a little
and pull it out of device specific files and into
sysfs-bus-iio-thermocouple

These may well be more general and need pulling into a more generic
file in the future, but we can do that when it is needed.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Navin Sankar Velliangiri <navin@linumiz.com>
Cc: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
---
 .../sysfs-bus-iio-temperature-max31856        | 31 -------------------
 .../sysfs-bus-iio-temperature-max31865        | 12 -------
 .../ABI/testing/sysfs-bus-iio-thermocouple    | 18 +++++++++++
 3 files changed, 18 insertions(+), 43 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856
deleted file mode 100644
index e5ef6d8e5da1..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856
+++ /dev/null
@@ -1,31 +0,0 @@
-What:		/sys/bus/iio/devices/iio:deviceX/fault_oc
-KernelVersion:	5.1
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Open-circuit fault. The detection of open-circuit faults,
-		such as those caused by broken thermocouple wires.
-		Reading returns either '1' or '0'.
-
-		===  =======================================================
-		'1'  An open circuit such as broken thermocouple wires
-		     has been detected.
-		'0'  No open circuit or broken thermocouple wires are detected
-		===  =======================================================
-
-What:		/sys/bus/iio/devices/iio:deviceX/fault_ovuv
-KernelVersion:	5.1
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Overvoltage or Undervoltage Input Fault. The internal circuitry
-		is protected from excessive voltages applied to the thermocouple
-		cables by integrated MOSFETs at the T+ and T- inputs, and the
-		BIAS output. These MOSFETs turn off when the input voltage is
-		negative or greater than VDD.
-
-		Reading returns either '1' or '0'.
-
-		===  =======================================================
-		'1'  The input voltage is negative or greater than VDD.
-		'0'  The input voltage is positive and less than VDD (normal
-		     state).
-		===  =======================================================
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865
index 4b072da92218..349089e4f2d6 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865
+++ b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865
@@ -1,15 +1,3 @@
-What:		/sys/bus/iio/devices/iio:deviceX/fault_ovuv
-KernelVersion:	5.11
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Overvoltage or Undervoltage Input fault. The internal circuitry
-		is protected from excessive voltages applied to the thermocouple
-		cables at FORCE+, FORCE2, RTDIN+ & RTDIN-. This circuitry turn
-		off when the input voltage is negative or greater than VDD.
-
-		Reading returns '1' if input voltage is negative or greater
-		than VDD, otherwise '0'.
-
 What:		/sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
 KernelVersion:	5.11
 Contact:	linux-iio@vger.kernel.org
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-thermocouple b/Documentation/ABI/testing/sysfs-bus-iio-thermocouple
new file mode 100644
index 000000000000..01259df297ca
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-thermocouple
@@ -0,0 +1,18 @@
+What:		/sys/bus/iio/devices/iio:deviceX/fault_ovuv
+KernelVersion:	5.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Overvoltage or Undervoltage Input Fault. The internal circuitry
+		is protected from excessive voltages applied to the thermocouple
+		cables. The device can also detect if such a condition occurs.
+
+		Reading returns '1' if input voltage is negative or greater
+		than VDD, otherwise '0'.
+
+What:		/sys/bus/iio/devices/iio:deviceX/fault_oc
+KernelVersion:	5.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Open-circuit fault. The detection of open-circuit faults,
+		such as those caused by broken thermocouple wires.
+		Reading returns '1' if fault, '0' otherwise.
-- 
2.36.1