diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2015-03-26 05:04:49 +0800 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2015-04-27 08:20:31 +0200 |
| commit | eb58b40fb62413d820407c8210acb6c2f1ac1d9b (patch) | |
| tree | 65893eccf7fe84e53e1fdbfd85d61efb5d3870d5 /arch/arm/boot/dts/sun6i-a31.dtsi | |
| parent | 3a2bc642abee100511021b263032329f94e3a1e4 (diff) | |
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.dtsi | 33 |
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>; }; |