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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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f02dccbe96
Enable throttling down the CPU frequency when an alert temperature threshold is reached before the critical temperature for shutdown. Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com> Link: https://lore.kernel.org/r/20250623-b4-verdin-am62p-cooling-device-v1-1-cc185ba5843d@toradex.com Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
102 lines
2.3 KiB
Plaintext
102 lines
2.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only OR MIT
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/*
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* Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
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*/
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#include <dt-bindings/thermal/thermal.h>
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thermal_zones: thermal-zones {
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main0_thermal: main0-thermal {
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polling-delay-passive = <250>; /* milliSeconds */
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polling-delay = <500>; /* milliSeconds */
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thermal-sensors = <&wkup_vtm0 0>;
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trips {
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main0_alert: main0-alert {
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temperature = <115000>;
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hysteresis = <2000>;
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type = "passive";
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};
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main0_crit: main0-crit {
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temperature = <125000>; /* milliCelsius */
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hysteresis = <2000>; /* milliCelsius */
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type = "critical";
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};
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};
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cooling-maps {
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map0 {
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trip = <&main0_alert>;
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cooling-device =
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<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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};
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};
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};
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main1_thermal: main1-thermal {
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polling-delay-passive = <250>; /* milliSeconds */
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polling-delay = <500>; /* milliSeconds */
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thermal-sensors = <&wkup_vtm0 1>;
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trips {
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main1_alert: main1-alert {
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temperature = <115000>;
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hysteresis = <2000>;
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type = "passive";
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};
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main1_crit: main1-crit {
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temperature = <125000>; /* milliCelsius */
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hysteresis = <2000>; /* milliCelsius */
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type = "critical";
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};
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};
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cooling-maps {
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map0 {
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trip = <&main1_alert>;
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cooling-device =
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<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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};
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};
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};
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main2_thermal: main2-thermal {
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polling-delay-passive = <250>; /* milliSeconds */
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polling-delay = <500>; /* milliSeconds */
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thermal-sensors = <&wkup_vtm0 2>;
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trips {
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main2_alert: main2-alert {
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temperature = <115000>;
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hysteresis = <2000>;
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type = "passive";
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};
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main2_crit: main2-crit {
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temperature = <125000>; /* milliCelsius */
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hysteresis = <2000>; /* milliCelsius */
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type = "critical";
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};
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};
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cooling-maps {
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map0 {
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trip = <&main2_alert>;
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cooling-device =
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<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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};
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};
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};
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};
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