From 749c61e5b30a18037fcae27694cd949c4d652205 Mon Sep 17 00:00:00 2001 From: Michael Walle Date: Wed, 27 Apr 2022 23:44:04 +0200 Subject: dt-bindings: net: micrel: add coma-mode-gpios property 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 Acked-by: Rob Herring Signed-off-by: Jakub Kicinski --- Documentation/devicetree/bindings/net/micrel.txt | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation/devicetree') 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. -- cgit v1.2.3-59-g8ed1b