Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1338741

[PATCH 3/3] arm64: dts: register Hi6220's thermal zone for power allocator

Show all headers | View raw

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 <leo.yan@linaro.org>
---
 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@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@0 {
+						temperature = <65000>;
+						hysteresis = <1000>;
+						type = "passive";
+					};
+
+					target: trip-point@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

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH 0/3] thermal: hisilicon: enable power allocator for Hi6220 Leo Yan <leo.yan@linaro.org> - 2016-02-20 17:00 +0100
  [PATCH 2/3] arm64: dts: register Hi6220's thermal sensor Leo Yan <leo.yan@linaro.org> - 2016-02-20 17:00 +0100
  [PATCH 3/3] arm64: dts: register Hi6220's thermal zone for power allocator Leo Yan <leo.yan@linaro.org> - 2016-02-20 17:00 +0100
  [PATCH 1/3] thermal: hisilicon: support to use any sensor Leo Yan <leo.yan@linaro.org> - 2016-02-20 17:00 +0100

csiph-web