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Commit 24f743a0 authored by Jun Nie's avatar Jun Nie Committed by Linus Walleij
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gpio: Document ZTE zx296702 GPIO DT binding 



Add document of ZTE zx296702 GPIO binding

Signed-off-by: default avatarJun Nie <jun.nie@linaro.org>
Acked-by: default avatarShawn Guo <shawn.guo@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 39561e8b

Documentation/devicetree/bindings/gpio/zx296702-gpio.txt

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ZTE ZX296702 GPIO controller



Required properties:

- compatible : "zte,zx296702-gpio"

- #gpio-cells : Should be two. The first cell is the pin number and the

  second cell is used to specify optional parameters:

  - bit 0 specifies polarity (0 for normal, 1 for inverted)

- gpio-controller : Marks the device node as a GPIO controller.

- interrupts : Interrupt mapping for GPIO IRQ.

- gpio-ranges : Interaction with the PINCTRL subsystem.



gpio1: gpio@b008040 {

	compatible = "zte,zx296702-gpio";

	reg = <0xb008040 0x40>;

	gpio-controller;

	#gpio-cells = <2>;

	gpio-ranges = < &pmx0 0 54 2 &pmx0 2 59 14>;

	interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;

	interrupt-parent = <&intc>;

	interrupt-controller;

	#interrupt-cells = <2>;

	clock-names = "gpio_pclk";

	clocks = <&lsp0clk ZX296702_GPIO_CLK>;

};