PMIC

dts

通过设备树进行配置 PMU。

longan/device/config/chips/a133/configs/c3/kickpi-k5.dts
longan/device/config/chips/a133/configs/c3/kickpi-k5c.dts

pmu 配置节点

pmu0: pmu@34 {
    compatible = "x-powers,axp803";
    reg = <0x34>;
    status = "okay";
    ...
}

battery dtsi

电池参考配置

longan/kernel/linux-4.9/arch/arm64/boot/dts/sunxi/a133-kickpi-axp707-bat-5000mA.dtsi

电池配置，配置电池相关数据节点

battery_power_supply: battery-power-supply {
    compatible = "x-powers,axp803-battery-power-supply";
    status = "okay";
    ...
}

参考文档

Linux_PMIC_开发指南.pdf