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35 lines
1.2 KiB
35 lines
1.2 KiB
* Abilis TB10x GPIO controller |
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Required Properties: |
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- compatible: Should be "abilis,tb10x-gpio" |
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- reg: Address and length of the register set for the device |
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- gpio-controller: Marks the device node as a gpio controller. |
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- #gpio-cells: Should be <2>. 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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- bit 0 specifies polarity (0 for normal, 1 for inverted). |
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- abilis,ngpio: the number of GPIO pins this driver controls. |
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Optional Properties: |
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- interrupt-controller: Marks the device node as an interrupt controller. |
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- #interrupt-cells: Should be <1>. Interrupts are triggered on both edges. |
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- interrupts: Defines the interrupt line connecting this GPIO controller to |
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its parent interrupt controller. |
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GPIO ranges are specified as described in |
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Documentation/devicetree/bindings/gpio/gpio.txt |
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Example: |
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gpioa: gpio@ff140000 { |
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compatible = "abilis,tb10x-gpio"; |
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interrupt-controller; |
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#interrupt-cells = <1>; |
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interrupt-parent = <&tb10x_ictl>; |
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interrupts = <27 2>; |
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reg = <0xFF140000 0x1000>; |
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gpio-controller; |
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#gpio-cells = <2>; |
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abilis,ngpio = <3>; |
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gpio-ranges = <&iomux 0 0 0>; |
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gpio-ranges-group-names = "gpioa_pins"; |
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};
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