1*4882a593SmuzhiyunDallas DS1307 and compatible RTC 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible: should be one of: 5*4882a593Smuzhiyun "dallas,ds1307", 6*4882a593Smuzhiyun "dallas,ds1308", 7*4882a593Smuzhiyun "dallas,ds1337", 8*4882a593Smuzhiyun "dallas,ds1338", 9*4882a593Smuzhiyun "dallas,ds1339", 10*4882a593Smuzhiyun "dallas,ds1388", 11*4882a593Smuzhiyun "dallas,ds1340", 12*4882a593Smuzhiyun "dallas,ds1341", 13*4882a593Smuzhiyun "maxim,ds3231", 14*4882a593Smuzhiyun "st,m41t0", 15*4882a593Smuzhiyun "st,m41t00", 16*4882a593Smuzhiyun "st,m41t11", 17*4882a593Smuzhiyun "microchip,mcp7940x", 18*4882a593Smuzhiyun "microchip,mcp7941x", 19*4882a593Smuzhiyun "pericom,pt7c4338", 20*4882a593Smuzhiyun "epson,rx8025", 21*4882a593Smuzhiyun "isil,isl12057" 22*4882a593Smuzhiyun "epson,rx8130" 23*4882a593Smuzhiyun- reg: I2C bus address of the device 24*4882a593Smuzhiyun 25*4882a593SmuzhiyunOptional properties: 26*4882a593Smuzhiyun- interrupts: rtc alarm interrupt. 27*4882a593Smuzhiyun- clock-output-names: From common clock binding to override the default output 28*4882a593Smuzhiyun clock name 29*4882a593Smuzhiyun- wakeup-source: Enables wake up of host system on alarm 30*4882a593Smuzhiyun- trickle-resistor-ohms : ds1339, ds1340 and ds 1388 only 31*4882a593Smuzhiyun Selected resistor for trickle charger 32*4882a593Smuzhiyun Possible values are 250, 2000, 4000 33*4882a593Smuzhiyun Should be given if trickle charger should be enabled 34*4882a593Smuzhiyun- aux-voltage-chargeable: ds1339, ds1340, ds1388 and rx8130 only 35*4882a593Smuzhiyun Tells whether the battery/supercap of the RTC (if any) is 36*4882a593Smuzhiyun chargeable or not. 37*4882a593Smuzhiyun Possible values are 0 (not chargeable), 1 (chargeable) 38*4882a593Smuzhiyun 39*4882a593SmuzhiyunDeprecated properties: 40*4882a593Smuzhiyun- trickle-diode-disable : ds1339, ds1340 and ds1388 only 41*4882a593Smuzhiyun Do not use internal trickle charger diode 42*4882a593Smuzhiyun Should be given if internal trickle charger diode should be disabled 43*4882a593Smuzhiyun (superseded by aux-voltage-chargeable) 44*4882a593Smuzhiyun 45*4882a593SmuzhiyunExample: 46*4882a593Smuzhiyun ds1339: rtc@68 { 47*4882a593Smuzhiyun compatible = "dallas,ds1339"; 48*4882a593Smuzhiyun reg = <0x68>; 49*4882a593Smuzhiyun interrupt-parent = <&gpio4>; 50*4882a593Smuzhiyun interrupts = <20 0>; 51*4882a593Smuzhiyun trickle-resistor-ohms = <250>; 52*4882a593Smuzhiyun }; 53