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gpio: Document ZTE zx296702 GPIO DT binding

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Add document of ZTE zx296702 GPIO binding

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Jun Nie 2015-06-29 10:35:56 +08:00 committed by Linus Walleij
parent 39561e8bbb
commit 24f743a0f0
1 changed files with 24 additions and 0 deletions
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Documentation/devicetree/bindings/gpio/zx296702-gpio.txt Normal file
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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>;
};