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31 lines
1.5 KiB
31 lines
1.5 KiB
Nomadik GPIO controller |
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Required properties: |
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- compatible : Should be "st,nomadik-gpio". |
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- reg : Physical base address and length of the controller's registers. |
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- interrupts : The interrupt outputs from the controller. |
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- #gpio-cells : Should be two: |
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The first cell is the pin number. |
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The second cell is used to specify optional parameters: |
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- bits[3:0] trigger type and level flags: |
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1 = low-to-high edge triggered. |
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2 = high-to-low edge triggered. |
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4 = active high level-sensitive. |
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8 = active low level-sensitive. |
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- gpio-controller : Marks the device node as a GPIO controller. |
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- interrupt-controller : Marks the device node as an interrupt controller. |
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- gpio-bank : Specifies which bank a controller owns. |
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- st,supports-sleepmode : Specifies whether controller can sleep or not |
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Example: |
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gpio1: gpio@8012e080 { |
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compatible = "st,nomadik-gpio"; |
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reg = <0x8012e080 0x80>; |
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interrupts = <0 120 0x4>; |
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#gpio-cells = <2>; |
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gpio-controller; |
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interrupt-controller; |
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st,supports-sleepmode; |
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gpio-bank = <1>; |
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};
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