1*4882a593SmuzhiyunSynopsys GPIO via CREG (Control REGisters) driver 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible : "snps,creg-gpio-hsdk" or "snps,creg-gpio-axs10x". 5*4882a593Smuzhiyun- reg : Exactly one register range with length 0x4. 6*4882a593Smuzhiyun- #gpio-cells : Since the generic GPIO binding is used, the 7*4882a593Smuzhiyun amount of cells must be specified as 2. The first cell is the 8*4882a593Smuzhiyun pin number, the second cell is used to specify optional parameters: 9*4882a593Smuzhiyun See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. 10*4882a593Smuzhiyun- gpio-controller : Marks the device node as a GPIO controller. 11*4882a593Smuzhiyun- ngpios: Number of GPIO pins. 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunExample: 14*4882a593Smuzhiyun 15*4882a593Smuzhiyungpio: gpio@f00014b0 { 16*4882a593Smuzhiyun compatible = "snps,creg-gpio-hsdk"; 17*4882a593Smuzhiyun reg = <0xf00014b0 0x4>; 18*4882a593Smuzhiyun gpio-controller; 19*4882a593Smuzhiyun #gpio-cells = <2>; 20*4882a593Smuzhiyun ngpios = <2>; 21*4882a593Smuzhiyun}; 22