LXR linux/Documentation/devicetree/bindings/gpio/gpio-nmk.txt

   1Nomadik GPIO controller
   2
   3Required properties:
   4- compatible            : Should be "st,nomadik-gpio".
   5- reg                   : Physical base address and length of the controller's registers.
   6- interrupts            : The interrupt outputs from the controller.
   7- #gpio-cells           : Should be two:
   8                            The first cell is the pin number.
   9                            The second cell is used to specify optional parameters:
  10                              - bits[3:0] trigger type and level flags:
  11                                  1 = low-to-high edge triggered.
  12                                  2 = high-to-low edge triggered.
  13                                  4 = active high level-sensitive.
  14                                  8 = active low level-sensitive.
  15- gpio-controller       : Marks the device node as a GPIO controller.
  16- interrupt-controller  : Marks the device node as an interrupt controller.
  17- gpio-bank             : Specifies which bank a controller owns.
  18- st,supports-sleepmode : Specifies whether controller can sleep or not
  19
  20Example:
  21
  22                gpio1: gpio@8012e080 {
  23                        compatible = "st,nomadik-gpio";
  24                        reg =  <0x8012e080 0x80>;
  25                        interrupts = <0 120 0x4>;
  26                        #gpio-cells = <2>;
  27                        gpio-controller;
  28                        interrupt-controller;
  29                        st,supports-sleepmode;
  30                        gpio-bank = <1>;
  31                };
  32