Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt

   1 Microsemi Ocelot pin controller Device Tree Bindings
   2 ----------------------------------------------------
   3
   4 Required properties:
   5  - compatible           : Should be "mscc,ocelot-pinctrl",
   6                           "mscc,jaguar2-pinctrl", "microchip,sparx5-pinctrl",
   7                           "mscc,luton-pinctrl" or "mscc,serval-pinctrl"
   8  - reg                  : Address and length of the register set for the device
   9  - gpio-controller      : Indicates this device is a GPIO controller
  10  - #gpio-cells          : Must be 2.
  11                           The first cell is the pin number and the
  12                           second cell specifies GPIO flags, as defined in
  13                           <dt-bindings/gpio/gpio.h>.
  14  - gpio-ranges          : Range of pins managed by the GPIO controller.
  15
  16
  17 The ocelot-pinctrl driver uses the generic pin multiplexing and generic pin
  18 configuration documented in pinctrl-bindings.txt.
  19
  20 The following generic properties are supported:
  21  - function
  22  - pins
  23
  24 Example:
  25         gpio: pinctrl@71070034 {
  26                 compatible = "mscc,ocelot-pinctrl";
  27                 reg = <0x71070034 0x28>;
  28                 gpio-controller;
  29                 #gpio-cells = <2>;
  30                 gpio-ranges = <&gpio 0 0 22>;
  31
  32                 uart_pins: uart-pins {
  33                                 pins = "GPIO_6", "GPIO_7";
  34                                 function = "uart";
  35                 };
  36
  37                 uart2_pins: uart2-pins {
  38                                 pins = "GPIO_12", "GPIO_13";
  39                                 function = "uart2";
  40                 };
  41         };