1*9f17ceaaSBaolin WangSpreadtrum SC27xx Power Management Integrated Circuit (PMIC) 2*9f17ceaaSBaolin Wang 3*9f17ceaaSBaolin WangThe Spreadtrum SC27xx series PMICs contain SC2720, SC2721, SC2723, SC2730 4*9f17ceaaSBaolin Wangand SC2731. The Spreadtrum PMIC belonging to SC27xx series integrates all 5*9f17ceaaSBaolin Wangmobile handset power management, audio codec, battery management and user 6*9f17ceaaSBaolin Wanginterface support function in a single chip. It has 6 major functional 7*9f17ceaaSBaolin Wangblocks: 8*9f17ceaaSBaolin Wang- DCDCs to support CPU, memory. 9*9f17ceaaSBaolin Wang- LDOs to support both internal and external requirement. 10*9f17ceaaSBaolin Wang- Battery management system, such as charger, fuel gauge. 11*9f17ceaaSBaolin Wang- Audio codec. 12*9f17ceaaSBaolin Wang- User interface function, such as indicator, flash LED and so on. 13*9f17ceaaSBaolin Wang- IC level interface, such as power on/off control, RTC and typec and so on. 14*9f17ceaaSBaolin Wang 15*9f17ceaaSBaolin WangRequired properties: 16*9f17ceaaSBaolin Wang- compatible: Should be one of the following: 17*9f17ceaaSBaolin Wang "sprd,sc2720" 18*9f17ceaaSBaolin Wang "sprd,sc2721" 19*9f17ceaaSBaolin Wang "sprd,sc2723" 20*9f17ceaaSBaolin Wang "sprd,sc2730" 21*9f17ceaaSBaolin Wang "sprd,sc2731" 22*9f17ceaaSBaolin Wang- reg: The address of the device chip select, should be 0. 23*9f17ceaaSBaolin Wang- spi-max-frequency: Typically set to 26000000. 24*9f17ceaaSBaolin Wang- interrupts: The interrupt line the device is connected to. 25*9f17ceaaSBaolin Wang- interrupt-controller: Marks the device node as an interrupt controller. 26*9f17ceaaSBaolin Wang- #interrupt-cells: The number of cells to describe an PMIC IRQ, must be 2. 27*9f17ceaaSBaolin Wang- #address-cells: Child device offset number of cells, must be 1. 28*9f17ceaaSBaolin Wang- #size-cells: Child device size number of cells, must be 0. 29*9f17ceaaSBaolin Wang 30*9f17ceaaSBaolin WangExample: 31*9f17ceaaSBaolin Wangpmic@0 { 32*9f17ceaaSBaolin Wang compatible = "sprd,sc2731"; 33*9f17ceaaSBaolin Wang reg = <0>; 34*9f17ceaaSBaolin Wang spi-max-frequency = <26000000>; 35*9f17ceaaSBaolin Wang interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; 36*9f17ceaaSBaolin Wang interrupt-controller; 37*9f17ceaaSBaolin Wang #interrupt-cells = <2>; 38*9f17ceaaSBaolin Wang #address-cells = <1>; 39*9f17ceaaSBaolin Wang #size-cells = <0>; 40*9f17ceaaSBaolin Wang}; 41