Add documentation for the optical tracker PAT9125 and
"position" directory for chip which can provides position data.
Signed-off-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
---
.../bindings/iio/position/pat9125.txt | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/position/pat9125.txt
diff --git a/Documentation/devicetree/bindings/iio/position/pat9125.txt b/Documentation/devicetree/bindings/iio/position/pat9125.txt
new file mode 100644
index 000000000000..4028aeef9b42
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/position/pat9125.txt
@@ -0,0 +1,18 @@
+PixArt Imaging PAT9125 Optical Tracking Miniature Chip device driver
+
+Required properties:
+ - compatible: must be "pixart,pat9125"
+ - reg: i2c address where to find the device
+ - interrupts: the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic
+ interrupt client node bindings.
+
+Example:
+
+pat9125@75 {
+ compatible = "pixart,pat9125";
+ reg = <0x75>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+};
--
2.17.1
