[PATCH 3/3] arm64: dts: register Hi6220's thermal zone for power allocator
From: Leo Yan <hidden>
Date: 2016-02-20 15:53:19
Also in:
linux-devicetree, linux-pm, lkml
Subsystem:
arm/hisilicon soc support, the rest · Maintainers:
Wei Xu, Linus Torvalds
With profiling Hi6220's power modeling so get dynamic coefficient and sustainable power. So pass these parameters from DT. Now enable power allocator wit only one actor for CPU part, so directly use cluster0's thermal sensor for monitoring temperature. Signed-off-by: Leo Yan <redacted> --- arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 36 +++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 50ba1b0..3608a3e 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi@@ -6,6 +6,7 @@ #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/clock/hi6220-clock.h> +#include <dt-bindings/thermal/thermal.h> / { compatible = "hisilicon,hi6220";
@@ -87,6 +88,7 @@ cooling-max-level = <0>; #cooling-cells = <2>; /* min followed by max */ cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>; + dynamic-power-coefficient = <311>; }; cpu1: cpu at 1 {
@@ -322,5 +324,39 @@ clock-names = "thermal_clk"; #thermal-sensor-cells = <1>; }; + + thermal-zones { + + cls0: cls0 { + polling-delay = <1000>; + polling-delay-passive = <100>; + sustainable-power = <3326>; + + /* sensor ID */ + thermal-sensors = <&tsensor 2>; + + trips { + threshold: trip-point at 0 { + temperature = <65000>; + hysteresis = <1000>; + type = "passive"; + }; + + target: trip-point at 1 { + temperature = <75000>; + hysteresis = <1000>; + type = "passive"; + }; + }; + + cooling-maps { + map0 { + trip = <&target>; + contribution = <1024>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; }; };
--
1.9.1