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dt-bindings: net: micrel: add coma-mode-gpios property

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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@walle.cc>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Michael Walle 2022-04-27 23:44:04 +02:00 committed by Jakub Kicinski
parent 17d49e6e80
commit 749c61e5b3
1 changed files with 9 additions and 0 deletions
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9
Documentation/devicetree/bindings/net/micrel.txt
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@ -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.