arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
Extension
.dtsi
Size
8283 bytes
Lines
306
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
/*
 * Device tree sources for Exynos5433 thermal zone
 *
 * Copyright (c) 2016 Chanwoo Choi <cw00.choi@samsung.com>
 */

#include <dt-bindings/thermal/thermal.h>

/ {
thermal-zones {
	atlas0_thermal: atlas0-thermal {
		thermal-sensors = <&tmu_atlas0>;
		polling-delay-passive = <0>;
		polling-delay = <0>;
		trips {
			atlas0_alert_0: atlas0-alert-0 {
				temperature = <65000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
			atlas0_alert_1: atlas0-alert-1 {
				temperature = <70000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
			atlas0_alert_2: atlas0-alert-2 {
				temperature = <75000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
			atlas0_alert_3: atlas0-alert-3 {
				temperature = <80000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
			atlas0_alert_4: atlas0-alert-4 {
				temperature = <85000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
			atlas0_alert_5: atlas0-alert-5 {
				temperature = <90000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
			atlas0_alert_6: atlas0-alert-6 {
				temperature = <95000>;	/* millicelsius */
				hysteresis = <1000>;	/* millicelsius */
				type = "active";
			};
		};

		cooling-maps {
			map0 {
				/* Set maximum frequency as 1800MHz  */
				trip = <&atlas0_alert_0>;
				cooling-device = <&cpu4 1 2>, <&cpu5 1 2>,
						 <&cpu6 1 2>, <&cpu7 1 2>;
			};
			map1 {
				/* Set maximum frequency as 1700MHz  */
				trip = <&atlas0_alert_1>;
				cooling-device = <&cpu4 2 3>, <&cpu5 2 3>,
						 <&cpu6 2 3>, <&cpu7 2 3>;
			};
			map2 {
				/* Set maximum frequency as 1600MHz  */
				trip = <&atlas0_alert_2>;
				cooling-device = <&cpu4 3 4>, <&cpu5 3 4>,

Annotation

Implementation Notes