summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/sun6i-a31.dtsi
diff options
context:
space:
mode:
authorChen-Yu Tsai <wens@csie.org>2015-03-26 00:04:49 +0300
committerMaxime Ripard <maxime.ripard@free-electrons.com>2015-04-27 09:20:31 +0300
commiteb58b40fb62413d820407c8210acb6c2f1ac1d9b (patch)
tree65893eccf7fe84e53e1fdbfd85d61efb5d3870d5 /arch/arm/boot/dts/sun6i-a31.dtsi
parent3a2bc642abee100511021b263032329f94e3a1e4 (diff)
downloadlinux-eb58b40fb62413d820407c8210acb6c2f1ac1d9b.tar.xz
ARM: dts: sun6i: 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> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/sun6i-a31.dtsi')
-rw-r--r--arch/arm/boot/dts/sun6i-a31.dtsi33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index 9ea0edb9684c..25a97f08d94b 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>;
};