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Date:   Fri,  8 May 2020 17:43:40 +0200
From:   Michael Grzeschik <>
Subject: [PATCH v3 2/5] dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0

Microchip SMI0 Mode is a special mode, where the MDIO Read/Write
commands are part of the PHY Address and the OP Code is always 0. We add
the compatible for this special mode of the bitbanged mdio driver.

Signed-off-by: Michael Grzeschik <>
 Documentation/devicetree/bindings/net/mdio-gpio.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/net/mdio-gpio.txt b/Documentation/devicetree/bindings/net/mdio-gpio.txt
index 8dbcf8295c6c9c..4d91a36c5cf503 100644
--- a/Documentation/devicetree/bindings/net/mdio-gpio.txt
+++ b/Documentation/devicetree/bindings/net/mdio-gpio.txt
@@ -2,6 +2,7 @@ MDIO on GPIOs
 Currently defined compatibles:
 - virtual,gpio-mdio
+- microchip,mdio-smi0
 MDC and MDIO lines connected to GPIO controllers are listed in the
 gpios property as described in section VIII.1 in the following order:

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