The LAN8814 has a coma mode pin which is used to put the PHY into isolate and power-down mode. Usually strapped to be asserted by default. A GPIO is then used to take the PHY out of this mode. Signed-off-by: Michael Walle <michael@xxxxxxxx> --- Documentation/devicetree/bindings/net/micrel.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt index 8d157f0295a5..a9ed691ffb03 100644 --- a/Documentation/devicetree/bindings/net/micrel.txt +++ b/Documentation/devicetree/bindings/net/micrel.txt @@ -45,3 +45,12 @@ Optional properties: In fiber mode, auto-negotiation is disabled and the PHY can only work in 100base-fx (full and half duplex) modes. + + - coma-mode-gpios: If present the given gpio will be deasserted when the + PHY is probed. + + Some PHYs have a COMA mode input pin which puts the PHY into + isolate and power-down mode. On some boards this input is connected + to a GPIO of the SoC. + + Supported on the LAN8814. -- 2.30.2
