0001 Synopsys GPIO via CREG (Control REGisters) driver
0002
0003 Required properties:
0004 - compatible : "snps,creg-gpio-hsdk" or "snps,creg-gpio-axs10x".
0005 - reg : Exactly one register range with length 0x4.
0006 - #gpio-cells : Since the generic GPIO binding is used, the
0007 amount of cells must be specified as 2. The first cell is the
0008 pin number, the second cell is used to specify optional parameters:
0009 See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt.
0010 - gpio-controller : Marks the device node as a GPIO controller.
0011 - ngpios: Number of GPIO pins.
0012
0013 Example:
0014
0015 gpio: gpio@f00014b0 {
0016 compatible = "snps,creg-gpio-hsdk";
0017 reg = <0xf00014b0 0x4>;
0018 gpio-controller;
0019 #gpio-cells = <2>;
0020 ngpios = <2>;
0021 };
