[RFC PATCH 8/9] ARM: dt: t30 cardhu: add dt entry for thermal driver

[Wei Ni]

Enable thermal driver in the dts file.
Set sensor as lm90 remote sensor, and set throttle data.

Signed-off-by: Wei Ni <wni at nvidia.com>
---
 .../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