net/dsa/realtek.yaml

18   MDIO or SPI.
21   bit-banged GPIO that while it reuses the MDIO lines MCK and MDIO does
22   not use the MDIO protocol. This binding defines how to specify the
26   The MDIO-connected switches use MDIO protocol to access their registers.
27   The realtek-mdio driver is an MDIO driver and it must be inserted inside
28   an MDIO node.
54   mdio-gpios:
55     description: GPIO line for the MDIO data line.
100   mdio:
101     $ref: /schemas/net/mdio.yaml#
106         const: realtek,smi-mdio
117       - mdio-gpios
118       - mdio
122     mdio-gpios: false
123     mdio: false
128     - mdio-gpios
129     - mdio
136     #  - mdio-gpios
138     #  - mdio
150                     /* 22 = MDIO (has input reads), 21 = MDC (clock, output only) */
152                     mdio-gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
203                     mdio {
204                             compatible = "realtek,smi-mdio";
245                     mdio-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
294                     mdio {
295                             compatible = "realtek,smi-mdio";
327     mdio {