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-* IBM/AMCC/APM GPIO Controller for PowerPC 4XX series and compatible SoCs
-
-All GPIOs are pin-shared with other functions. DCRs control whether a
-particular pin that has GPIO capabilities acts as a GPIO or is used for
-another purpose. GPIO outputs are separately programmable to emulate
-an open-drain driver.
-
-Required properties:
- - compatible: must be "ibm,ppc4xx-gpio"
- - reg: address and length of the register set for the device
- - #gpio-cells: must be set to 2. The first cell is the pin number
- and the second cell is used to specify the gpio polarity:
- 0 = active high
- 1 = active low
- - gpio-controller: marks the device node as a gpio controller.
-
-Example:
-
-GPIO0: gpio@ef600b00 {
- compatible = "ibm,ppc4xx-gpio";
- reg = <0xef600b00 0x00000048>;
- #gpio-cells = <2>;
- gpio-controller;
-};