1Microsemi Ocelot pin controller Device Tree Bindings 2---------------------------------------------------- 3 4Required properties: 5 - compatible : Should be "mscc,ocelot-pinctrl", 6 "mscc,jaguar2-pinctrl", "microchip,sparx5-pinctrl", 7 "mscc,luton-pinctrl", "mscc,serval-pinctrl", 8 "microchip,lan966x-pinctrl" or "mscc,servalt-pinctrl" 9 - reg : Address and length of the register set for the device 10 - gpio-controller : Indicates this device is a GPIO controller 11 - #gpio-cells : Must be 2. 12 The first cell is the pin number and the 13 second cell specifies GPIO flags, as defined in 14 <dt-bindings/gpio/gpio.h>. 15 - gpio-ranges : Range of pins managed by the GPIO controller. 16 17 18The ocelot-pinctrl driver uses the generic pin multiplexing and generic pin 19configuration documented in pinctrl-bindings.txt. 20 21The following generic properties are supported: 22 - function 23 - pins 24 25Example: 26 gpio: pinctrl@71070034 { 27 compatible = "mscc,ocelot-pinctrl"; 28 reg = <0x71070034 0x28>; 29 gpio-controller; 30 #gpio-cells = <2>; 31 gpio-ranges = <&gpio 0 0 22>; 32 33 uart_pins: uart-pins { 34 pins = "GPIO_6", "GPIO_7"; 35 function = "uart"; 36 }; 37 38 uart2_pins: uart2-pins { 39 pins = "GPIO_12", "GPIO_13"; 40 function = "uart2"; 41 }; 42 }; 43