| /* |
| * Device tree sources for Exynos5422 thermal zone |
| * |
| * Copyright (c) 2015 Lukasz Majewski <l.majewski@samsung.com> |
| * Anand Moon <linux.amoon@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <dt-bindings/thermal/thermal.h> |
| |
| / { |
| thermal-zones { |
| cpu0_thermal: cpu0-thermal { |
| thermal-sensors = <&tmu_cpu0 0>; |
| polling-delay-passive = <250>; |
| polling-delay = <0>; |
| trips { |
| cpu_alert0: cpu-alert-0 { |
| temperature = <50000>; /* millicelsius */ |
| hysteresis = <5000>; /* millicelsius */ |
| type = "active"; |
| }; |
| cpu_alert1: cpu-alert-1 { |
| temperature = <60000>; /* millicelsius */ |
| hysteresis = <5000>; /* millicelsius */ |
| type = "active"; |
| }; |
| cpu_alert2: cpu-alert-2 { |
| temperature = <70000>; /* millicelsius */ |
| hysteresis = <5000>; /* millicelsius */ |
| type = "active"; |
| }; |
| cpu_crit0: cpu-crit-0 { |
| temperature = <120000>; /* millicelsius */ |
| hysteresis = <0>; /* millicelsius */ |
| type = "critical"; |
| }; |
| /* |
| * Exyunos542x support only 4 trip-points |
| * so for these polling mode is required. |
| * Start polling at temperature level of last |
| * interrupt-driven trip: cpu_alert2 |
| */ |
| cpu_alert3: cpu-alert-3 { |
| temperature = <70000>; /* millicelsius */ |
| hysteresis = <10000>; /* millicelsius */ |
| type = "passive"; |
| }; |
| cpu_alert4: cpu-alert-4 { |
| temperature = <85000>; /* millicelsius */ |
| hysteresis = <10000>; /* millicelsius */ |
| type = "passive"; |
| }; |
| |
| }; |
| cooling-maps { |
| map0 { |
| trip = <&cpu_alert0>; |
| cooling-device = <&fan0 0 1>; |
| }; |
| map1 { |
| trip = <&cpu_alert1>; |
| cooling-device = <&fan0 1 2>; |
| }; |
| map2 { |
| trip = <&cpu_alert2>; |
| cooling-device = <&fan0 2 3>; |
| }; |
| /* |
| * When reaching cpu_alert3, reduce CPU |
| * by 2 steps. On Exynos5422/5800 that would |
| * be: 1500 MHz and 1100 MHz. |
| */ |
| map3 { |
| trip = <&cpu_alert3>; |
| cooling-device = <&cpu0 0 2>; |
| }; |
| map4 { |
| trip = <&cpu_alert3>; |
| cooling-device = <&cpu4 0 2>; |
| }; |
| |
| /* |
| * When reaching cpu_alert4, reduce CPU |
| * further, down to 600 MHz (11 steps for big, |
| * 7 steps for LITTLE). |
| */ |
| map5 { |
| trip = <&cpu_alert4>; |
| cooling-device = <&cpu0 3 7>; |
| }; |
| map6 { |
| trip = <&cpu_alert4>; |
| cooling-device = <&cpu4 3 11>; |
| }; |
| }; |
| }; |
| }; |
| }; |
