1*4882a593SmuzhiyunAnalog Devices LT3651 Charger Power Supply bindings: lt3651-charger 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible: Should contain one of the following: 5*4882a593Smuzhiyun * "lltc,ltc3651-charger", (DEPRECATED: Use "lltc,lt3651-charger") 6*4882a593Smuzhiyun * "lltc,lt3651-charger" 7*4882a593Smuzhiyun - lltc,acpr-gpios: Connect to ACPR output. See remark below. 8*4882a593Smuzhiyun 9*4882a593SmuzhiyunOptional properties: 10*4882a593Smuzhiyun - lltc,fault-gpios: Connect to FAULT output. See remark below. 11*4882a593Smuzhiyun - lltc,chrg-gpios: Connect to CHRG output. See remark below. 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunThe lt3651 outputs are open-drain type and active low. The driver assumes the 14*4882a593SmuzhiyunGPIO reports "active" when the output is asserted, so if the pins have been 15*4882a593Smuzhiyunconnected directly, the GPIO flags should be set to active low also. 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunThe driver will attempt to aquire interrupts for all GPIOs to detect changes in 18*4882a593Smuzhiyunline state. If the system is not capabale of providing interrupts, the driver 19*4882a593Smuzhiyuncannot report changes and userspace will need to periodically read the sysfs 20*4882a593Smuzhiyunattributes to detect changes. 21*4882a593Smuzhiyun 22*4882a593SmuzhiyunExample: 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun charger: battery-charger { 25*4882a593Smuzhiyun compatible = "lltc,lt3651-charger"; 26*4882a593Smuzhiyun lltc,acpr-gpios = <&gpio0 68 GPIO_ACTIVE_LOW>; 27*4882a593Smuzhiyun lltc,fault-gpios = <&gpio0 64 GPIO_ACTIVE_LOW>; 28*4882a593Smuzhiyun lltc,chrg-gpios = <&gpio0 63 GPIO_ACTIVE_LOW>; 29*4882a593Smuzhiyun }; 30