Merge tag 'iwlwifi-next-for-kalle-2014-12-30' of https://git.kernel.org/pub/scm/linux...
[cascardo/linux.git] / Documentation / devicetree / bindings / thermal / tegra-soctherm.txt
1 Tegra124 SOCTHERM thermal management system
2
3 The SOCTHERM IP block contains thermal sensors, support for polled
4 or interrupt-based thermal monitoring, CPU and GPU throttling based
5 on temperature trip points, and handling external overcurrent
6 notifications. It is also used to manage emergency shutdown in an
7 overheating situation.
8
9 Required properties :
10 - compatible : "nvidia,tegra124-soctherm".
11 - reg : Should contain 1 entry:
12   - SOCTHERM register set
13 - interrupts : Defines the interrupt used by SOCTHERM
14 - clocks : Must contain an entry for each entry in clock-names.
15   See ../clocks/clock-bindings.txt for details.
16 - clock-names : Must include the following entries:
17   - tsensor
18   - soctherm
19 - resets : Must contain an entry for each entry in reset-names.
20   See ../reset/reset.txt for details.
21 - reset-names : Must include the following entries:
22   - soctherm
23 - #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description
24     of this property. See <dt-bindings/thermal/tegra124-soctherm.h> for a
25     list of valid values when referring to thermal sensors.
26
27
28 Example :
29
30         soctherm@0,700e2000 {
31                 compatible = "nvidia,tegra124-soctherm";
32                 reg = <0x0 0x700e2000 0x0 0x1000>;
33                 interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
34                 clocks = <&tegra_car TEGRA124_CLK_TSENSOR>,
35                         <&tegra_car TEGRA124_CLK_SOC_THERM>;
36                 clock-names = "tsensor", "soctherm";
37                 resets = <&tegra_car 78>;
38                 reset-names = "soctherm";
39
40                 #thermal-sensor-cells = <1>;
41         };
42
43 Example: referring to thermal sensors :
44
45        thermal-zones {
46                 cpu {
47                         polling-delay-passive = <1000>;
48                         polling-delay = <1000>;
49
50                         thermal-sensors =
51                                 <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
52                 };
53         };