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.
98   mdio:
99     $ref: /schemas/net/mdio.yaml#
104         const: realtek,smi-mdio
115       - mdio-gpios
116       - mdio
120     mdio-gpios: false
121     mdio: false
126     - mdio-gpios
127     - mdio
134     #  - mdio-gpios
136     #  - mdio
148                     /* 22 = MDIO (has input reads), 21 = MDC (clock, output only) */
150                     mdio-gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
201                     mdio {
202                             compatible = "realtek,smi-mdio";
243                     mdio-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
292                     mdio {
293                             compatible = "realtek,smi-mdio";
325     mdio {