Kernel-4.18.0-80.el8_mscc,ocelot-pinctrl

Microsemi Ocelot pin controller Device Tree Bindings

Required properties:

• compatible : Should be “mscc,ocelot-pinctrl”
• reg : Address and length of the register set for the device
• gpio-controller : Indicates this device is a GPIO controller
• #gpio-cells : Must be 2.

         The first cell is the pin number and the
         second cell specifies GPIO flags, as defined in
         <dt-bindings/gpio/gpio.h>.
  

• gpio-ranges : Range of pins managed by the GPIO controller.

The ocelot-pinctrl driver uses the generic pin multiplexing and generic pin
configuration documented in pinctrl-bindings.txt.

The following generic properties are supported:

• function
• pins

Example:
gpio: pinctrl@71070034 {
compatible = “mscc,ocelot-pinctrl”;
reg = <0x71070034 0x28>;
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&gpio 0 0 22>;

    uart_pins: uart-pins {
            pins = "GPIO_6", "GPIO_7";
            function = "uart";
    };

    uart2_pins: uart2-pins {
            pins = "GPIO_12", "GPIO_13";
            function = "uart2";
    };
};