41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
|
Spreadtrum SC27xx Power Management Integrated Circuit (PMIC)
|
||
|
|
|
||
|
|
The Spreadtrum SC27xx series PMICs contain SC2720, SC2721, SC2723, SC2730
|
||
|
|
and SC2731. The Spreadtrum PMIC belonging to SC27xx series integrates all
|
||
|
|
mobile handset power management, audio codec, battery management and user
|
||
|
|
interface support function in a single chip. It has 6 major functional
|
||
|
|
blocks:
|
||
|
|
- DCDCs to support CPU, memory.
|
||
|
|
- LDOs to support both internal and external requirement.
|
||
|
|
- Battery management system, such as charger, fuel gauge.
|
||
|
|
- Audio codec.
|
||
|
|
- User interface function, such as indicator, flash LED and so on.
|
||
|
|
- IC level interface, such as power on/off control, RTC and typec and so on.
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
- compatible: Should be one of the following:
|
||
|
|
"sprd,sc2720"
|
||
|
|
"sprd,sc2721"
|
||
|
|
"sprd,sc2723"
|
||
|
|
"sprd,sc2730"
|
||
|
|
"sprd,sc2731"
|
||
|
|
- reg: The address of the device chip select, should be 0.
|
||
|
|
- spi-max-frequency: Typically set to 26000000.
|
||
|
|
- interrupts: The interrupt line the device is connected to.
|
||
|
|
- interrupt-controller: Marks the device node as an interrupt controller.
|
||
|
|
- #interrupt-cells: The number of cells to describe an PMIC IRQ, must be 2.
|
||
|
|
- #address-cells: Child device offset number of cells, must be 1.
|
||
|
|
- #size-cells: Child device size number of cells, must be 0.
|
||
|
|
|
||
|
|
Example:
|
||
|
|
pmic@0 {
|
||
|
|
compatible = "sprd,sc2731";
|
||
|
|
reg = <0>;
|
||
|
|
spi-max-frequency = <26000000>;
|
||
|
|
interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
interrupt-controller;
|
||
|
|
#interrupt-cells = <2>;
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
};
|