nixos-config/config/devterm/devterm-pmu-overlay.dts

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/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2711";
fragment@0 {
target = <&i2c0if>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-0 = <&i2c0_pins>;
pinctrl-names = "default";
status = "okay";
axp22x: pmic@34 {
interrupt-controller;
#interrupt-cells = <1>;
compatible = "x-powers,axp223";
reg = <0x34>; /* i2c address */
interrupt-parent = <&gpio>;
interrupts = <2 8>; /* IRQ_TYPE_EDGE_FALLING */
irq-gpios = <&gpio 2 0>;
regulators {
x-powers,dcdc-freq = <3000>;
reg_aldo1: aldo1 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "audio-vdd";
};
reg_aldo2: aldo2 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "display-vcc";
};
reg_dldo2: dldo2 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "dldo2";
};
reg_dldo3: dldo3 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "dldo3";
};
reg_dldo4: dldo4 {
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "dldo4";
};
};
battery_power_supply: battery-power-supply {
compatible = "x-powers,axp221-battery-power-supply";
monitored-battery = <&battery>;
};
ac_power_supply: ac_power_supply {
compatible = "x-powers,axp221-ac-power-supply";
};
};
};
};
fragment@1 {
target = <&i2c0if>;
__overlay__ {
compatible = "brcm,bcm2708-i2c";
};
};
fragment@2 {
target-path = "/aliases";
__overlay__ {
i2c0 = "/soc/i2c@7e205000";
};
};
fragment@3 {
target-path = "/";
__overlay__ {
battery: battery@0 {
compatible = "simple-battery";
constant-charge-current-max-microamp = <2100000>;
voltage-min-design-microvolt = <3300000>;
};
};
};
};