arch/arm64/boot/dts/apple/t7001-air2.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/apple/t7001-air2.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/apple/t7001-air2.dtsi
Extension
.dtsi
Size
1427 bytes
Lines
76
Domain
Architecture Layer
Bucket
arch/arm64
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

// SPDX-License-Identifier: GPL-2.0+ OR MIT
/*
 * Apple iPad Air 2 common device tree
 * Copyright (c) 2022, Konrad Dybcio <konradybcio@kernel.org>
 */

#include "t7001.dtsi"
#include <dt-bindings/input/input.h>

/ {
	chassis-type = "tablet";

	chosen {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		stdout-path = "serial0";

		framebuffer0: framebuffer@0 {
			compatible = "apple,simple-framebuffer", "simple-framebuffer";
			reg = <0 0 0 0>; /* To be filled by loader */
			power-domains = <&ps_disp0 &ps_dp>;
			/* Format properties will be added by loader */
			status = "disabled";
		};
	};

	gpio-keys {
		compatible = "gpio-keys";

		button-home {
			label = "Home Button";
			gpios = <&pinctrl 0 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_HOMEPAGE>;
			wakeup-source;
		};

		button-power {
			label = "Power Button";
			gpios = <&pinctrl 1 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_POWER>;
			wakeup-source;
		};

		button-volup {
			label = "Volume Up";
			gpios = <&pinctrl 92 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_VOLUMEUP>;
		};

		button-voldown {
			label = "Volume Down";
			gpios = <&pinctrl 93 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_VOLUMEDOWN>;
		};
	};

	memory@800000000 {
		device_type = "memory";
		reg = <0x8 0 0 0>; /* To be filled by loader */
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		/* To be filled by loader */
	};

Annotation

Implementation Notes