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