* Dallas DS1390 SPI Serial Real-Time Clock Required properties: - compatible: Should contain "dallas,ds1390". - reg: SPI address for chip Optional properties: - trickle-resistor-ohms : Selected resistor for trickle charger Values usable for ds1390 are 250, 2000, 4000 Should be given if trickle charger should be enabled - trickle-diode-disable : Do not use internal trickle charger diode Should be given if internal trickle charger diode should be disabled Example: ds1390: rtc@0 { compatible = "dallas,ds1390"; trickle-resistor-ohms = <250>; reg = <0>; };