Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0458bb62 authored by Alexandre Belloni's avatar Alexandre Belloni Committed by Linus Walleij
Browse files

dt-bindings: pinctrl: Add bindings for Microsemi Ocelot 



Add the documentation for the Microsemi Ocelot pinmuxing and gpio
controller.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent d72ebbcc

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

0 → 100644
+39 −0
Original line number Diff line number Diff line 
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";

		};

	};