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37 lines
1.1 KiB
37 lines
1.1 KiB
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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