Enable thermal driver in the dts file. Set sensor as lm90 remote sensor, and set throttle data.
Signed-off-by: Wei Ni <[email protected]> --- .../devicetree/bindings/thermal/tegra3-thermal.txt | 41 ++++++++++++++++++++ arch/arm/boot/dts/tegra30-cardhu.dtsi | 19 +++++++++ 2 files changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/tegra3-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/tegra3-thermal.txt b/Documentation/devicetree/bindings/thermal/tegra3-thermal.txt new file mode 100644 index 0000000..dc3f922 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/tegra3-thermal.txt @@ -0,0 +1,41 @@ +* Nvidia Tegra30 Thermal + +** Thermal node properties: + +- compatible : "nvidia,tegra30-thermal"; +- sensors: the sensor device node which we want to use in the thermal zone, + the arguments is the index of the sensor in sensor device node; +- passive-delay: passive delay; +- num-passive-trips : number of passive trip points, this is required, set + it 0 if none, if greater than 0, the following properties must be defined; +- passive-trips : temperature of passive trip points; +- num-active-trips: number of active trip points, this is required, set + it 0 if none, if greater than 0, the following properties must be defined; +- active-trips: temperature of active trip points; +- throt-tab-size: size of the throttle table, it's the max cooling state. +- throt-tab: throttle table. the cooling state will be defined according to + this table. + +Usually these properties are separated in board related dts files. + +Example: +thermal { + compatible = "nvidia,tegra30-thermal"; + sensors = <&nct1008 0>; + passive-delay = <2000>; + num-passive-trips = <3>; + passive-trips = <70 80 90>; + num-active-trips = <4>; + active-trips = < 60 70 80 90>; + throt-tab-size = <10>; + throt-tab = <0 1000 + 640000 1000 + 640000 1000 + 640000 1000 + 640000 1000 + 640000 1000 + 760000 1050 + 760000 1050 + 1000000 1050 + 1000000 1050>; +}; diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi index 3f6ab89..9748b9b 100644 --- a/arch/arm/boot/dts/tegra30-cardhu.dtsi +++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi @@ -492,4 +492,23 @@ nvidia,spkr-en-gpios = <&wm8903 2 0>; nvidia,hp-det-gpios = <&gpio 178 0>; /* gpio PW2 */ }; + + thermal { + compatible = "nvidia,tegra30-thermal"; + sensors = <&nct1008 0>; + passive-delay = <2000>; + num-passive-trips = <1>; + passive-trips = <80>; + throt-tab-size = <10>; + throt-tab = <0 1000 + 640000 1000 + 640000 1000 + 640000 1000 + 640000 1000 + 640000 1000 + 760000 1050 + 760000 1050 + 1000000 1050 + 1000000 1050>; + }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
