提交 32a5d2d1 编写于 作者: C Chen-Yu Tsai 提交者: Maxime Ripard

ARM: dts: sun5i: Add cpu thermal zones to dtsi

The core temperature sensor now supports thermal zones. Add a thermal
zone mapping for the cpus with passive cooling (cpufreq throttling).
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Acked-by: NEduardo Valentin <edubezval@gmail.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
上级 b6d34248
...@@ -13,6 +13,8 @@ ...@@ -13,6 +13,8 @@
#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>
...@@ -64,6 +66,38 @@ ...@@ -64,6 +66,38 @@
}; };
}; };
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 0x20000000>; reg = <0x40000000 0x20000000>;
}; };
......
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