Commit c44a1b91 authored by Bruno Thomsen's avatar Bruno Thomsen Committed by David S. Miller
Browse files

dt-bindings: net: mdio: add reset-post-delay-us property 



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: default avatarBruno Thomsen <bruno.thomsen@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bd0b33b2

Documentation/devicetree/bindings/net/mdio.yaml

+7 −0
Original line number Diff line number Diff line
@@ -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