[PATCH 4/5] dt-bindings: pps: pps-gpio: introduce pulse-width properties

[Eliav Farber <farbere@amazon.com>]

Add two new optional properties to calculate PPS pulse-width in nano
seconds:
 - assert-pulse-width
 - clear-pulse-width

Signed-off-by: Eliav Farber <farbere@amazon.com>
---
 Documentation/devicetree/bindings/pps/pps-gpio.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.txt b/Documentation/devicetree/bindings/pps/pps-gpio.txt
index 8d588e38c44e..9ecfd5fb3b63 100644
--- a/Documentation/devicetree/bindings/pps/pps-gpio.txt
+++ b/Documentation/devicetree/bindings/pps/pps-gpio.txt
@@ -18,6 +18,12 @@ Optional properties:
                  opposite of the assert edge (if assert is rising-edge then
                  clear is falling-edge and if assert is falling-edge then
                  clear is rising-edge).
+- assert-pulse-width: when present, assert pulse width will be calculated in
+                      nano seconds.
+                      It should be enabled only if 'capture-clear' is enabled.
+- clear-pulse-width: when present, clear pulse width will be calculated in
+                     nano seconds.
+                     It should be enabled only if 'capture-clear' is enabled.
 
 Example:
 	pps {
-- 
2.40.1