arch/arm/boot/dts/allwinner/sun5i-a13-empire-electronix-d709.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun5i-a13-empire-electronix-d709.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun5i-a13-empire-electronix-d709.dts
Extension
.dts
Size
4613 bytes
Lines
191
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.

Dependency Surface

Detected Declarations

Annotated Snippet

/dts-v1/;
#include "sun5i-a13.dtsi"
#include "sunxi-common-regulators.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pwm/pwm.h>

/ {
	model = "Empire Electronix D709 tablet";
	compatible = "empire-electronix,d709", "allwinner,sun5i-a13";

	aliases {
		serial0 = &uart1;
	};

	backlight: backlight {
		compatible = "pwm-backlight";
		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
		default-brightness-level = <8>;
		power-supply = <&reg_vcc3v3>;
		/* TODO: backlight uses axp gpio1 as enable pin */
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};
};

&cpu0 {
	cpu-supply = <&reg_dcdc2>;
};

&ehci0 {
	status = "okay";
};

&i2c0 {
	status = "okay";

	axp209: pmic@34 {
		reg = <0x34>;
		interrupts = <0>;
	};
};

#include "axp209.dtsi"

&i2c1 {
	status = "okay";

	pcf8563: rtc@51 {
		compatible = "nxp,pcf8563";
		reg = <0x51>;
	};
};

&lradc {
	vref-supply = <&reg_ldo2>;
	status = "okay";

	button-200 {
		label = "Volume Up";
		linux,code = <KEY_VOLUMEUP>;
		channel = <0>;
		voltage = <200000>;
	};

	button-400 {

Annotation

Implementation Notes