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ARM: dts: sun4i: Add cpu thermal zones to dtsi

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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>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2015-01-12 12:34:08 +08:00 committed by Maxime Ripard
parent 32a5d2d170
commit 541ce2ca7e
1 changed files with 34 additions and 0 deletions
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34
arch/arm/boot/dts/sun4i-a10.dtsi
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@ -12,6 +12,8 @@
#include "skeleton.dtsi" #include "skeleton.dtsi"
#include <dt-bindings/thermal/thermal.h>
#include <dt-bindings/dma/sun4i-a10.h> #include <dt-bindings/dma/sun4i-a10.h>
#include <dt-bindings/pinctrl/sun4i-a10.h> #include <dt-bindings/pinctrl/sun4i-a10.h>
@ -93,6 +95,38 @@
}; };
}; };
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 = <850000>;
hysteresis = <2000>;
type = "passive";
};
cpu_crit: cpu_crit {
/* milliCelsius */
temperature = <100000>;
hysteresis = <2000>;
type = "critical";
};
};
};
};
memory { memory {
reg = <0x40000000 0x80000000>; reg = <0x40000000 0x80000000>;
}; };