Messages in this thread Patch in this message | | | From | Chen-Yu Tsai <> | Subject | [PATCH 3/3] ARM: dts: sun6i: Add cpu thermal zones to dtsi | Date | Thu, 26 Mar 2015 05:04:49 +0800 |
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The core temperature sensor now supports thermal zones. Add a thermal zone mapping for the cpus with passive cooling (cpufreq throttling).
Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- arch/arm/boot/dts/sun6i-a31.dtsi | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+)
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi index 9a68acc1070f..60d912eeb7c7 100644 --- a/arch/arm/boot/dts/sun6i-a31.dtsi +++ b/arch/arm/boot/dts/sun6i-a31.dtsi @@ -50,6 +50,7 @@ #include "skeleton.dtsi" #include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/thermal/thermal.h> #include <dt-bindings/pinctrl/sun4i-a10.h> @@ -133,6 +134,38 @@ }; }; + thermal-zones { + cpu_thermal { + /* milliseconds */ + polling-delay-passive = <250>; + polling-delay = <1000>; + thermal-sensors = <&rtp>; + + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + + trips { + cpu_alert0: cpu_alert0 { + /* milliCelsius */ + temperature = <70000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_crit: cpu_crit { + /* milliCelsius */ + temperature = <100000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; + memory { reg = <0x40000000 0x80000000>; }; -- 2.1.4
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