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