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-Aspeed GPIO controller Device Tree Bindings
--------------------------------------------
-
-Required properties:
-- compatible : Either "aspeed,ast2400-gpio", "aspeed,ast2500-gpio",
- or "aspeed,ast2600-gpio".
-
-- #gpio-cells : Should be two
- - First cell is the GPIO line number
- - Second cell is used to specify optional
- parameters (unused)
-
-- reg : Address and length of the register set for the device
-- gpio-controller : Marks the device node as a GPIO controller.
-- interrupts : Interrupt specifier (see interrupt bindings for
- details)
-- interrupt-controller : Mark the GPIO controller as an interrupt-controller
-
-Optional properties:
-
-- clocks : A phandle to the clock to use for debounce timings
-- ngpios : Number of GPIOs controlled by this controller. Should be set
- when there are multiple GPIO controllers on a SoC (ast2600).
-
-The gpio and interrupt properties are further described in their respective
-bindings documentation:
-
-- Documentation/devicetree/bindings/gpio/gpio.txt
-- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-
- Example:
- gpio@1e780000 {
- #gpio-cells = <2>;
- compatible = "aspeed,ast2400-gpio";
- gpio-controller;
- interrupts = <20>;
- reg = <0x1e780000 0x1000>;
- interrupt-controller;
- };