1 * ST-Ericsson DB8500 Thermal 1 * ST-Ericsson DB8500 Thermal
2 2
3 ** Thermal node properties: 3 ** Thermal node properties:
4 4
5 - compatible : "stericsson,db8500-thermal"; 5 - compatible : "stericsson,db8500-thermal";
6 - reg : address range of the thermal sensor re 6 - reg : address range of the thermal sensor registers;
7 - interrupts : interrupts generated from PRCMU 7 - interrupts : interrupts generated from PRCMU;
8 - interrupt-names : "IRQ_HOTMON_LOW" and "IRQ_ 8 - interrupt-names : "IRQ_HOTMON_LOW" and "IRQ_HOTMON_HIGH";
9 - num-trips : number of total trip points, thi 9 - num-trips : number of total trip points, this is required, set it 0 if none,
10 if greater than 0, the following properties 10 if greater than 0, the following properties must be defined;
11 - tripN-temp : temperature of trip point N, sh 11 - tripN-temp : temperature of trip point N, should be in ascending order;
12 - tripN-type : type of trip point N, should be 12 - tripN-type : type of trip point N, should be one of "active" "passive" "hot"
13 "critical"; 13 "critical";
14 - tripN-cdev-num : number of the cooling devic 14 - tripN-cdev-num : number of the cooling devices which can be bound to trip
15 point N, this is required if trip point N is 15 point N, this is required if trip point N is defined, set it 0 if none,
16 otherwise the following cooling device names 16 otherwise the following cooling device names must be defined;
17 - tripN-cdev-nameM : name of the No. M cooling 17 - tripN-cdev-nameM : name of the No. M cooling device of trip point N;
18 18
19 Usually the num-trips and tripN-*** are separa 19 Usually the num-trips and tripN-*** are separated in board related dts files.
20 20
21 Example: 21 Example:
22 thermal@801573c0 { 22 thermal@801573c0 {
23 compatible = "stericsson,db8500-therma 23 compatible = "stericsson,db8500-thermal";
24 reg = <0x801573c0 0x40>; 24 reg = <0x801573c0 0x40>;
25 interrupts = <21 0x4>, <22 0x4>; 25 interrupts = <21 0x4>, <22 0x4>;
26 interrupt-names = "IRQ_HOTMON_LOW", "I 26 interrupt-names = "IRQ_HOTMON_LOW", "IRQ_HOTMON_HIGH";
27 27
28 num-trips = <3>; 28 num-trips = <3>;
29 29
30 trip0-temp = <75000>; 30 trip0-temp = <75000>;
31 trip0-type = "active"; 31 trip0-type = "active";
32 trip0-cdev-num = <1>; 32 trip0-cdev-num = <1>;
33 trip0-cdev-name0 = "thermal-cpufreq-0" 33 trip0-cdev-name0 = "thermal-cpufreq-0";
34 34
35 trip1-temp = <80000>; 35 trip1-temp = <80000>;
36 trip1-type = "active"; 36 trip1-type = "active";
37 trip1-cdev-num = <2>; 37 trip1-cdev-num = <2>;
38 trip1-cdev-name0 = "thermal-cpufreq-0" 38 trip1-cdev-name0 = "thermal-cpufreq-0";
39 trip1-cdev-name1 = "thermal-fan"; 39 trip1-cdev-name1 = "thermal-fan";
40 40
41 trip2-temp = <85000>; 41 trip2-temp = <85000>;
42 trip2-type = "critical"; 42 trip2-type = "critical";
43 trip2-cdev-num = <0>; 43 trip2-cdev-num = <0>;
44 } 44 }
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