Binding for Qualcomm Atheros AR7xxx/AR9xxx GPIO controller
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Required properties:
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- compatible: has to be "qca,<soctype>-gpio" and one of the following
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fallbacks:
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- "qca,ar7100-gpio"
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- "qca,ar9340-gpio"
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- reg: Base address and size of the controllers memory area
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- gpio-controller : Marks the device node as a GPIO controller.
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- #gpio-cells : Should be two. The first cell is the pin number and the
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second cell is used to specify optional parameters.
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- ngpios: Should be set to the number of GPIOs available on the SoC.
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Optional properties:
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- interrupts: Interrupt specifier for the controllers interrupt.
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- interrupt-controller : Identifies the node as an interrupt controller
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- #interrupt-cells : Specifies the number of cells needed to encode interrupt
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source, should be 2
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Please refer to interrupts.txt in this directory for details of the common
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Interrupt Controllers bindings used by client devices.
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Example:
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gpio@18040000 {
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compatible = "qca,ar9132-gpio", "qca,ar7100-gpio";
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reg = <0x18040000 0x30>;
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interrupts = <2>;
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ngpios = <22>;
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gpio-controller;
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#gpio-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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};
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