arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
Extension
.dtsi
Size
31513 bytes
Lines
1451
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+
/*
 * Copyright 2018-2020 Purism SPC
 */

/dts-v1/;

#include "dt-bindings/input/input.h"
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/leds/common.h>
#include "dt-bindings/pwm/pwm.h"
#include "dt-bindings/usb/pd.h"
#include "imx8mq.dtsi"

/ {
	model = "Purism Librem 5";
	compatible = "purism,librem5", "fsl,imx8mq";
	chassis-type = "handset";

	aliases {
		rtc0 = &rtc;
		rtc1 = &snvs_rtc;
	};

	backlight_dsi: backlight-dsi {
		compatible = "led-backlight";
		leds = <&led_backlight>;
		brightness-levels = <255>;
		default-brightness-level = <190>;
	};

	pmic_osc: clock-pmic {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <32768>;
		clock-output-names = "pmic_osc";
	};

	chosen {
		stdout-path = &uart1;
	};

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_keys>;

		key-vol-down {
			label = "VOL_DOWN";
			gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_VOLUMEDOWN>;
			debounce-interval = <50>;
		};

		key-vol-up {
			label = "VOL_UP";
			gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_VOLUMEUP>;
			debounce-interval = <50>;
		};
	};

	led-controller {
		compatible = "pwm-leds-multicolor";

		multi-led {
			color = <LED_COLOR_ID_RGB>;
			function = LED_FUNCTION_STATUS;
			max-brightness = <248>;

Annotation

Implementation Notes