Odroid XU*-familly boards has thermal sensors per A15 cores, but the actual thermal-zones define only cooling-maps action for cpu0.
If the application is running on all cores but core4 (first core of the A15 cluster), the CPU can reach high temperature without any proper cooling action. As already discus in prior mail, and on IRC, it's a quit big code duplication, but I don't found the write way to express that in a better way. The situation for this board is that we have multiple sensors, but matching cooling devices for these sensors act for the same physical device (FAN and A15 cluster, as each core of the cluster share the same frequency). In fact, of-thermal.c:473:thermal_zone_of_sensor_register() can't use multiple sensors for one single thermal zone. This patch follow the path taken in arch/arm/boot/dts/qcom-apq8084.dtsi:97 I'm interested to extending the thermal driver, but it will takes time. So this is a workaround before refactoring the driver. If somebody knows how to write it better, any advice and suggestions are more than welcome. Also, the comment for cpu_alert4 in cooling-maps definition is not accurate, 11 steps for A15 correspond to 700MHz, not 600MHz. Signed-off-by: Willy Wolff <[email protected]> --- arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 249 +++++++++++++++++++-- 1 file changed, 231 insertions(+), 18 deletions(-) diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index 05b9afdd6757..0759cc0812fb 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -64,22 +64,22 @@ polling-delay-passive = <250>; polling-delay = <0>; trips { - cpu_alert0: cpu-alert-0 { + cpu0_alert0: cpu-alert-0 { temperature = <50000>; /* millicelsius */ hysteresis = <5000>; /* millicelsius */ type = "active"; }; - cpu_alert1: cpu-alert-1 { + cpu0_alert1: cpu-alert-1 { temperature = <60000>; /* millicelsius */ hysteresis = <5000>; /* millicelsius */ type = "active"; }; - cpu_alert2: cpu-alert-2 { + cpu0_alert2: cpu-alert-2 { temperature = <70000>; /* millicelsius */ hysteresis = <5000>; /* millicelsius */ type = "active"; }; - cpu_crit0: cpu-crit-0 { + cpu0_crit0: cpu-crit-0 { temperature = <120000>; /* millicelsius */ hysteresis = <0>; /* millicelsius */ type = "critical"; @@ -88,14 +88,14 @@ * Exynos542x supports only 4 trip-points * so for these polling mode is required. * Start polling at temperature level of last - * interrupt-driven trip: cpu_alert2 + * interrupt-driven trip: cpu0_alert2 */ - cpu_alert3: cpu-alert-3 { + cpu0_alert3: cpu-alert-3 { temperature = <70000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ type = "passive"; }; - cpu_alert4: cpu-alert-4 { + cpu0_alert4: cpu-alert-4 { temperature = <85000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ type = "passive"; @@ -104,43 +104,256 @@ }; cooling-maps { map0 { - trip = <&cpu_alert0>; + trip = <&cpu0_alert0>; cooling-device = <&fan0 0 1>; }; map1 { - trip = <&cpu_alert1>; + trip = <&cpu0_alert1>; cooling-device = <&fan0 1 2>; }; map2 { - trip = <&cpu_alert2>; + trip = <&cpu0_alert2>; cooling-device = <&fan0 2 3>; }; /* - * When reaching cpu_alert3, reduce CPU + * When reaching cpu0_alert3, reduce CPU * by 2 steps. On Exynos5422/5800 that would * be: 1600 MHz and 1100 MHz. */ map3 { - trip = <&cpu_alert3>; + trip = <&cpu0_alert3>; cooling-device = <&cpu0 0 2>; }; map4 { - trip = <&cpu_alert3>; + trip = <&cpu0_alert3>; cooling-device = <&cpu4 0 2>; }; /* - * When reaching cpu_alert4, reduce CPU - * further, down to 600 MHz (11 steps for big, + * When reaching cpu0_alert4, reduce CPU + * further, down to 600 MHz (12 steps for big, * 7 steps for LITTLE). */ map5 { - trip = <&cpu_alert4>; + trip = <&cpu0_alert4>; cooling-device = <&cpu0 3 7>; }; map6 { - trip = <&cpu_alert4>; - cooling-device = <&cpu4 3 11>; + trip = <&cpu0_alert4>; + cooling-device = <&cpu4 3 12>; + }; + }; + }; + cpu1_thermal: cpu1-thermal { + thermal-sensors = <&tmu_cpu1 0>; + polling-delay-passive = <250>; + polling-delay = <0>; + trips { + cpu1_alert0: cpu-alert-0 { + temperature = <50000>; + hysteresis = <5000>; + type = "active"; + }; + cpu1_alert1: cpu-alert-1 { + temperature = <60000>; + hysteresis = <5000>; + type = "active"; + }; + cpu1_alert2: cpu-alert-2 { + temperature = <70000>; + hysteresis = <5000>; + type = "active"; + }; + cpu1_crit0: cpu-crit-0 { + temperature = <120000>; + hysteresis = <0>; + type = "critical"; + }; + + cpu1_alert3: cpu-alert-3 { + temperature = <70000>; + hysteresis = <10000>; /* millicelsius */ + type = "passive"; + }; + cpu1_alert4: cpu-alert-4 { + temperature = <85000>; + hysteresis = <10000>; + type = "passive"; + }; + + }; + cooling-maps { + map0 { + trip = <&cpu1_alert0>; + cooling-device = <&fan0 0 1>; + }; + map1 { + trip = <&cpu1_alert1>; + cooling-device = <&fan0 1 2>; + }; + map2 { + trip = <&cpu1_alert2>; + cooling-device = <&fan0 2 3>; + }; + + map3 { + trip = <&cpu1_alert3>; + cooling-device = <&cpu0 0 2>; + }; + map4 { + trip = <&cpu1_alert3>; + cooling-device = <&cpu4 0 2>; + }; + + map5 { + trip = <&cpu1_alert4>; + cooling-device = <&cpu0 3 7>; + }; + map6 { + trip = <&cpu1_alert4>; + cooling-device = <&cpu4 3 12>; + }; + }; + }; + cpu2_thermal: cpu2-thermal { + thermal-sensors = <&tmu_cpu2 0>; + polling-delay-passive = <250>; + polling-delay = <0>; + trips { + cpu2_alert0: cpu-alert-0 { + temperature = <50000>; + hysteresis = <5000>; + type = "active"; + }; + cpu2_alert1: cpu-alert-1 { + temperature = <60000>; + hysteresis = <5000>; + type = "active"; + }; + cpu2_alert2: cpu-alert-2 { + temperature = <70000>; + hysteresis = <5000>; + type = "active"; + }; + cpu2_crit0: cpu-crit-0 { + temperature = <120000>; + hysteresis = <0>; + type = "critical"; + }; + + cpu2_alert3: cpu-alert-3 { + temperature = <70000>; + hysteresis = <10000>; + type = "passive"; + }; + cpu2_alert4: cpu-alert-4 { + temperature = <85000>; + hysteresis = <10000>; + type = "passive"; + }; + + }; + cooling-maps { + map0 { + trip = <&cpu2_alert0>; + cooling-device = <&fan0 0 1>; + }; + map1 { + trip = <&cpu2_alert1>; + cooling-device = <&fan0 1 2>; + }; + map2 { + trip = <&cpu2_alert2>; + cooling-device = <&fan0 2 3>; + }; + + map3 { + trip = <&cpu2_alert3>; + cooling-device = <&cpu0 0 2>; + }; + map4 { + trip = <&cpu2_alert3>; + cooling-device = <&cpu4 0 2>; + }; + + map5 { + trip = <&cpu2_alert4>; + cooling-device = <&cpu0 3 7>; + }; + map6 { + trip = <&cpu2_alert4>; + cooling-device = <&cpu4 3 12>; + }; + }; + }; + cpu3_thermal: cpu3-thermal { + thermal-sensors = <&tmu_cpu3 0>; + polling-delay-passive = <250>; + polling-delay = <0>; + trips { + cpu3_alert0: cpu-alert-0 { + temperature = <50000>; + hysteresis = <5000>; + type = "active"; + }; + cpu3_alert1: cpu-alert-1 { + temperature = <60000>; + hysteresis = <5000>; + type = "active"; + }; + cpu3_alert2: cpu-alert-2 { + temperature = <70000>; + hysteresis = <5000>; + type = "active"; + }; + cpu3_crit0: cpu-crit-0 { + temperature = <120000>; + hysteresis = <0>; + type = "critical"; + }; + + cpu3_alert3: cpu-alert-3 { + temperature = <70000>; + hysteresis = <10000>; + type = "passive"; + }; + cpu3_alert4: cpu-alert-4 { + temperature = <85000>; + hysteresis = <10000>; + type = "passive"; + }; + + }; + cooling-maps { + map0 { + trip = <&cpu3_alert0>; + cooling-device = <&fan0 0 1>; + }; + map1 { + trip = <&cpu3_alert1>; + cooling-device = <&fan0 1 2>; + }; + map2 { + trip = <&cpu3_alert2>; + cooling-device = <&fan0 2 3>; + }; + + map3 { + trip = <&cpu3_alert3>; + cooling-device = <&cpu0 0 2>; + }; + map4 { + trip = <&cpu3_alert3>; + cooling-device = <&cpu4 0 2>; + }; + + map5 { + trip = <&cpu3_alert4>; + cooling-device = <&cpu0 3 7>; + }; + map6 { + trip = <&cpu3_alert4>; + cooling-device = <&cpu4 3 12>; }; }; }; -- 2.11.0
