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