Add "reset-post-delay-us" parameter to MDIO bus properties,
so it's possible to add a delay after reset deassert.
This is optional in case external hardware slows down
release of the reset signal.
Signed-off-by: Bruno Thomsen <bruno.thom...@gmail.com>
---
Documentation/devicetree/bindings/net/mdio.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/mdio.yaml
b/Documentation/devicetree/bindings/net/mdio.yaml
index d6a3bf8550eb..26afb556dfae 100644
--- a/Documentation/devicetree/bindings/net/mdio.yaml
+++ b/Documentation/devicetree/bindings/net/mdio.yaml
@@ -39,6 +39,13 @@ properties:
and must therefore be appropriately determined based on all devices
requirements (maximum value of all per-device RESET pulse widths).
+ reset-post-delay-us:
+ description:
+ Delay after reset deassert in microseconds. It applies to all MDIO
+ devices and it's determined by how fast all devices are ready for
+ communication. This delay happens just before e.g. Ethernet PHY
+ type ID auto detection.
+
clock-frequency:
description:
Desired MDIO bus clock frequency in Hz. Values greater than IEEE 802.3
--
2.26.2
