arch/arm/boot/dts/allwinner/sun6i-a31s-primo81.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun6i-a31s-primo81.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/allwinner/sun6i-a31s-primo81.dts- Extension
.dts- Size
- 5976 bytes
- Lines
- 268
- 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.
- Touches IRQ or DMA behavior; this matters for the representative real-device path.
Dependency Surface
sun6i-a31s.dtsisunxi-common-regulators.dtsidt-bindings/gpio/gpio.hdt-bindings/input/input.haxp22x.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
/dts-v1/;
#include "sun6i-a31s.dtsi"
#include "sunxi-common-regulators.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
model = "MSI Primo81 tablet";
compatible = "msi,primo81", "allwinner,sun6i-a31s";
hdmi-connector {
compatible = "hdmi-connector";
type = "c";
port {
hdmi_con_in: endpoint {
remote-endpoint = <&hdmi_out_con>;
};
};
};
};
&cpu0 {
cpu-supply = <®_dcdc3>;
};
&de {
status = "okay";
};
&ehci0 {
/* rtl8188etv wifi is connected here */
status = "okay";
};
&hdmi {
status = "okay";
};
&hdmi_out {
hdmi_out_con: endpoint {
remote-endpoint = <&hdmi_con_in>;
};
};
&i2c0 {
/* pull-ups and device VDDIO use AXP221 DLDO3 */
status = "fail";
};
&i2c1 {
status = "okay";
ctp@5d {
compatible = "goodix,gt911";
reg = <0x5d>;
interrupt-parent = <&pio>;
interrupts = <0 3 IRQ_TYPE_LEVEL_HIGH>; /* PA3 */
touchscreen-swapped-x-y;
};
};
&i2c2 {
status = "okay";
accelerometer@1c {
pinctrl-names = "default";
pinctrl-0 = <&mma8452_int_primo81>;
compatible = "fsl,mma8452";
Annotation
- Immediate include surface: `sun6i-a31s.dtsi`, `sunxi-common-regulators.dtsi`, `dt-bindings/gpio/gpio.h`, `dt-bindings/input/input.h`, `axp22x.dtsi`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: atlas-only.
- IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.
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.