* Freescale MPC512x/MPC8xxx/QorIQ/Layerscape GPIO controller Required properties: - compatible : Should be "fsl,-gpio" The following s are known to be supported: mpc5121, mpc5125, mpc8349, mpc8572, mpc8610, pq3, qoriq, ls1021a, ls1043a, ls2080a. - reg : Address and length of the register set for the device - interrupts : Should be the port interrupt shared by all 32 pins. - #gpio-cells : Should be two. The first cell is the pin number and the second cell is used to specify the gpio polarity: 0 = active high 1 = active low Optional properties: - little-endian : GPIO registers are used as little endian. If not present registers are used as big endian by default. Example of gpio-controller node for a mpc5125 SoC: gpio0: gpio@1100 { compatible = "fsl,mpc5125-gpio"; #gpio-cells = <2>; reg = <0x1100 0x080>; interrupts = <78 0x8>; status = "okay"; }; Example of gpio-controller node for a ls2080a SoC: gpio0: gpio@2300000 { compatible = "fsl,ls2080a-gpio", "fsl,qoriq-gpio"; reg = <0x0 0x2300000 0x0 0x10000>; interrupts = <0 36 0x4>; /* Level high type */ gpio-controller; little-endian; #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; };