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: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index 258ebdc..fd85720 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -13,6 +13,8 @@
#include "skeleton.dtsi"
+#include <dt-bindings/thermal/thermal.h>
+
#include <dt-bindings/dma/sun4i-a10.h>
#include <dt-bindings/pinctrl/sun4i-a10.h>
@@ -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 {
reg = <0x40000000 0x20000000>;
};