[v3,1/4] dt-binding: reset-controller: ti: add reset-duration-us property

[Crystal Guo]

introduce 'reset' method to allow device do serialized assert and
deassert operations in a single step, which needs a minimum delay
to be waited between assert and deassert.

Signed-off-by: Crystal Guo <crystal.guo@xxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/reset/ti-syscon-reset.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt b/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt
index 86945502ccb5..ab041032339b 100644
--- a/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt
+++ b/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt
@@ -59,6 +59,11 @@ Required properties:
 Please also refer to Documentation/devicetree/bindings/reset/reset.txt for
 common reset controller usage by consumers.
 
+Optional properties:
+- reset-duration-us: When do serialized assert and deassert operations, minimum delay in microseconds
+is needed to be waited between an assert and a deassert to reset the device. This value can be 0, 0 means
+that such a delay is not needed.
+
 Example:
 --------
 The following example demonstrates a syscon node, the reset controller node
-- 
2.18.0