[PATCH 7/8] dt-bindings: iio/counter: ftm-quaddec: add poll-interval parameter

[Patrick Havelange]

New optional parameter supported by updated driver.

Signed-off-by: Patrick Havelange <patrick.havelange at essensium.com>
Reviewed-by: Esben Haabendal <esben at haabendal.dk>
---
 .../devicetree/bindings/iio/counter/ftm-quaddec.txt       | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt b/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt
index 4d18cd722074..60554e6c4367 100644
--- a/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt
+++ b/Documentation/devicetree/bindings/iio/counter/ftm-quaddec.txt
@@ -6,8 +6,14 @@ Required properties:
 - compatible:		Must be "fsl,ftm-quaddec".
 - reg:			Must be set to the memory region of the flextimer.
 
-Optional property:
+Optional properties:
 - big-endian:		Access the device registers in big-endian mode.
+- poll-interval		Poll interval time in milliseconds for detecting
+			the under/overflow of the counter. Default value
+			is 100.
+			A value of 0 disables polling. This value can also
+			be set at runtime, but not to less than this initial
+			value (except 0 for disabling).
 
 Example:
 		counter0: counter at 29d0000 {
-- 
2.17.1