1Spreadtrum SC27xx Real Time Clock 2 3Required properties: 4- compatible: should be "sprd,sc2731-rtc". 5- reg: address offset of rtc register. 6- interrupts: rtc alarm interrupt. 7 8Example: 9 10 sc2731_pmic: pmic@0 { 11 compatible = "sprd,sc2731"; 12 reg = <0>; 13 spi-max-frequency = <26000000>; 14 interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; 15 interrupt-controller; 16 #interrupt-cells = <2>; 17 #address-cells = <1>; 18 #size-cells = <0>; 19 20 rtc@280 { 21 compatible = "sprd,sc2731-rtc"; 22 reg = <0x280>; 23 interrupt-parent = <&sc2731_pmic>; 24 interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; 25 }; 26 }; 27