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| author |   Michael Walle <michael@walle.cc> | 2022-04-27 23:44:04 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-04-29 16:37:53 -0700 |
| commit | 749c61e5b30a18037fcae27694cd949c4d652205 (patch) | |
| tree | db870e152011edb3bd9cd576624afd9006a05310 /Documentation/devicetree | |
| parent | Merge branch 'remove-NAPI_POLL_WEIGHT-copies' (diff) | |
| download | linux-dev-749c61e5b30a18037fcae27694cd949c4d652205.tar.xz linux-dev-749c61e5b30a18037fcae27694cd949c4d652205.zip | |
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 <michael@walle.cc>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/net/micrel.txt | 9 |
1 files changed, 9 insertions, 0 deletions
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. |