arch/arm/boot/dts/allwinner/axp209.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/axp209.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/allwinner/axp209.dtsi- Extension
.dtsi- Size
- 3549 bytes
- Lines
- 127
- Domain
- Architecture Layer
- Bucket
- arch/arm
- Inferred role
- Architecture Layer: configuration, schema, or hardware description
- Status
- atlas-only
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
/ {
pmic-temp {
compatible = "iio-hwmon";
io-channels = <&axp_adc 4>; /* Internal temperature */
};
};
&axp209 {
compatible = "x-powers,axp209";
interrupt-controller;
#interrupt-cells = <1>;
ac_power_supply: ac-power {
compatible = "x-powers,axp202-ac-power-supply";
status = "disabled";
};
axp_adc: adc {
compatible = "x-powers,axp209-adc";
#io-channel-cells = <1>;
};
axp_gpio: gpio {
compatible = "x-powers,axp209-gpio";
gpio-controller;
#gpio-cells = <2>;
};
battery_power_supply: battery-power {
compatible = "x-powers,axp209-battery-power-supply";
status = "disabled";
};
regulators {
/* Default work frequency for buck regulators */
x-powers,dcdc-freq = <1500>;
reg_dcdc2: dcdc2 {
regulator-name = "dcdc2";
};
reg_dcdc3: dcdc3 {
regulator-name = "dcdc3";
};
reg_ldo1: ldo1 {
/* LDO1 is a fixed output regulator */
regulator-always-on;
regulator-min-microvolt = <1300000>;
regulator-max-microvolt = <1300000>;
regulator-name = "ldo1";
};
reg_ldo2: ldo2 {
regulator-name = "ldo2";
};
reg_ldo3: ldo3 {
regulator-name = "ldo3";
};
reg_ldo4: ldo4 {
regulator-name = "ldo4";
};
reg_ldo5: ldo5 {
regulator-name = "ldo5";
status = "disabled";
};
};
Annotation
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.