| * Marvell PXA GPIO controller |
| |
| Required properties: |
| - compatible : Should be "mrvl,pxa-gpio" or "mrvl,mmp-gpio" |
| - reg : Address and length of the register set for the device |
| - interrupts : Should be the port interrupt shared by all gpio pins. |
| There're three gpio interrupts in arch-pxa, and they're gpio0, |
| gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp, |
| gpio_mux. |
| - interrupt-name : Should be the name of irq resource. Each interrupt |
| binds its interrupt-name. |
| - interrupt-controller : Identifies the node as an interrupt controller. |
| - #interrupt-cells: Specifies the number of cells needed to encode an |
| interrupt source. |
| - gpio-controller : Marks the device node as a gpio controller. |
| - #gpio-cells : Should be one. It is the pin number. |
| |
| Example: |
| |
| gpio: gpio@d4019000 { |
| compatible = "mrvl,mmp-gpio"; |
| reg = <0xd4019000 0x1000>; |
| interrupts = <49>; |
| interrupt-name = "gpio_mux"; |
| gpio-controller; |
| #gpio-cells = <1>; |
| interrupt-controller; |
| #interrupt-cells = <1>; |
| }; |
