There have two parts for thermal sensor: 1. The first part is related with thermal sensor, every sensor need to pass the sensor id, the threshold and reset temperature; so the sensor will be registered as sensor devices;
2. The second part is related with thermal zones, in this part it will define the thermal zones and which sensor device should be bound to. it also need specify the polling interval for every thermal zone. Signed-off-by: Leo Yan <[email protected]> Signed-off-by: kongxinwei <[email protected]> --- arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 153 ++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 arch/arm64/boot/dts/hisilicon/hi6220.dtsi diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi new file mode 100644 index 0000000..da49790 --- /dev/null +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi @@ -0,0 +1,153 @@ + +#include <dt-bindings/thermal/thermal.h> + +/ { + + tsensor: tsensor@0,f7030700 { + compatible = "hisilicon,tsensor"; + reg = <0x0 0xf7030700 0x0 0x1000>; + interrupts = <0 7 0x4>; + clocks = <&clock_sys HI6220_TSENSOR_CLK>; + clock-names = "thermal_clk"; + #thermal-sensor-cells = <1>; + + local_sensor { + hisilicon,tsensor-id = <0>; + hisilicon,tsensor-thres-temp = <80000>; + hisilicon,tsensor-reset-temp = <100000>; + hisilicon,tsensor-bind-irq; + }; + + acpu1_sensor { + hisilicon,tsensor-id = <1>; + hisilicon,tsensor-thres-temp = <80000>; + hisilicon,tsensor-reset-temp = <100000>; + }; + + acpu0_sensor { + hisilicon,tsensor-id = <2>; + hisilicon,tsensor-thres-temp = <80000>; + hisilicon,tsensor-reset-temp = <100000>; + }; + + gpu_sensor { + hisilicon,tsensor-id = <3>; + hisilicon,tsensor-thres-temp = <80000>; + hisilicon,tsensor-reset-temp = <100000>; + }; + }; + + thermal-zones { + local: local { + /* milliseconds */ + polling-delay-passive = <1000>; + /* milliseconds */ + polling-delay = <5000>; + + /* sensor ID */ + thermal-sensors = <&tsensor 0>; + + trips { + local_alert: local_alert { + /* millicelsius */ + temperature = <70000>; + /* millicelsius */ + hysteresis = <2000>; + type = "passive"; + }; + local_crit: local_crit { + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + /* There are currently no cooling maps + because there are no cooling devices */ + }; + }; + + cluster1: cluster1 { + polling-delay-passive = <1000>; + polling-delay = <5000>; + + /* sensor ID */ + thermal-sensors = <&tsensor 1>; + + trips { + cluster1_alert: cluster1_alert { + temperature = <70000>; + hysteresis = <2000>; + type = "passive"; + }; + cluster1_crit: cluster1_crit { + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + /* There are currently no cooling maps + because there are no cooling devices */ + }; + }; + + cluster0: cluster0 { + polling-delay-passive = <1000>; + polling-delay = <5000>; + + /* sensor ID */ + thermal-sensors = <&tsensor 2>; + + trips { + cluster0_alert: cluster0_alert { + temperature = <70000>; + hysteresis = <2000>; + type = "passive"; + }; + cluster0_crit: cluster0_crit { + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&cluster0_alert>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT + THERMAL_NO_LIMIT>; + }; + }; + }; + + gpu: gpu { + polling-delay-passive = <1000>; + polling-delay = <5000>; + + /* sensor ID */ + thermal-sensors = <&tsensor 3>; + + trips { + gpu_alert: gpu_alert { + temperature = <70000>; + hysteresis = <2000>; + type = "passive"; + }; + gpu_crit: gpu_crit { + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + /* There are currently no cooling maps + because there are no cooling devices */ + }; + }; + }; +} -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
