Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt

   1 * Freescale MPC512x/MPC8xxx/Layerscape GPIO controller
   2
   3 Required properties:
   4 - compatible : Should be "fsl,<soc>-gpio"
   5   The following <soc>s are known to be supported:
   6     mpc5121, mpc5125, mpc8349, mpc8572, mpc8610, pq3, qoriq.
   7 - reg : Address and length of the register set for the device
   8 - interrupts : Should be the port interrupt shared by all 32 pins.
   9 - #gpio-cells : Should be two.  The first cell is the pin number and
  10   the second cell is used to specify the gpio polarity:
  11       0 = active high
  12       1 = active low
  13
  14 Optional properties:
  15 - little-endian : GPIO registers are used as little endian. If not
  16                   present registers are used as big endian by default.
  17
  18 Example:
  19
  20 gpio0: gpio@1100 {
  21         compatible = "fsl,mpc5125-gpio";
  22         #gpio-cells = <2>;
  23         reg = <0x1100 0x080>;
  24         interrupts = <78 0x8>;
  25         status = "okay";
  26 };