tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1Microsemi Ocelot pin controller Device Tree Bindings
2----------------------------------------------------
3
4Required 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
16The ocelot-pinctrl driver uses the generic pin multiplexing and generic pin
17configuration documented in pinctrl-bindings.txt.
18
19The following generic properties are supported:
20 - function
21 - pins
22
23Example:
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 };