1*4882a593SmuzhiyunGPIO driver for MAX77620 Power management IC from Maxim Semiconductor. 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunDevice has 8 GPIO pins which can be configured as GPIO as well as the 4*4882a593Smuzhiyunspecial IO functions. 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunRequired properties: 7*4882a593Smuzhiyun------------------- 8*4882a593Smuzhiyun- gpio-controller : Marks the device node as a gpio controller. 9*4882a593Smuzhiyun- #gpio-cells : Should be two. The first cell is the pin number and 10*4882a593Smuzhiyun the second cell is used to specify the gpio polarity: 11*4882a593Smuzhiyun 0 = active high 12*4882a593Smuzhiyun 1 = active low 13*4882a593SmuzhiyunFor more details, please refer generic GPIO DT binding document 14*4882a593Smuzhiyun<devicetree/bindings/gpio/gpio.txt>. 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunExample: 17*4882a593Smuzhiyun-------- 18*4882a593Smuzhiyun#include <dt-bindings/mfd/max77620.h> 19*4882a593Smuzhiyun... 20*4882a593Smuzhiyunmax77620@3c { 21*4882a593Smuzhiyun compatible = "maxim,max77620"; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun gpio-controller; 24*4882a593Smuzhiyun #gpio-cells = <2>; 25*4882a593Smuzhiyun}; 26