xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/thermal/db8500-thermal.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* ST-Ericsson DB8500 Thermal
2*4882a593Smuzhiyun
3*4882a593Smuzhiyun** Thermal node properties:
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun- compatible : "stericsson,db8500-thermal";
6*4882a593Smuzhiyun- reg : address range of the thermal sensor registers;
7*4882a593Smuzhiyun- interrupts : interrupts generated from PRCMU;
8*4882a593Smuzhiyun- interrupt-names : "IRQ_HOTMON_LOW" and "IRQ_HOTMON_HIGH";
9*4882a593Smuzhiyun- num-trips : number of total trip points, this is required, set it 0 if none,
10*4882a593Smuzhiyun  if greater than 0, the following properties must be defined;
11*4882a593Smuzhiyun- tripN-temp : temperature of trip point N, should be in ascending order;
12*4882a593Smuzhiyun- tripN-type : type of trip point N, should be one of "active" "passive" "hot"
13*4882a593Smuzhiyun  "critical";
14*4882a593Smuzhiyun- tripN-cdev-num : number of the cooling devices which can be bound to trip
15*4882a593Smuzhiyun  point N, this is required if trip point N is defined, set it 0 if none,
16*4882a593Smuzhiyun  otherwise the following cooling device names must be defined;
17*4882a593Smuzhiyun- tripN-cdev-nameM : name of the No. M cooling device of trip point N;
18*4882a593Smuzhiyun
19*4882a593SmuzhiyunUsually the num-trips and tripN-*** are separated in board related dts files.
20*4882a593Smuzhiyun
21*4882a593SmuzhiyunExample:
22*4882a593Smuzhiyunthermal@801573c0 {
23*4882a593Smuzhiyun	compatible = "stericsson,db8500-thermal";
24*4882a593Smuzhiyun	reg = <0x801573c0 0x40>;
25*4882a593Smuzhiyun	interrupts = <21 0x4>, <22 0x4>;
26*4882a593Smuzhiyun	interrupt-names = "IRQ_HOTMON_LOW", "IRQ_HOTMON_HIGH";
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun	num-trips = <3>;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun	trip0-temp = <75000>;
31*4882a593Smuzhiyun	trip0-type = "active";
32*4882a593Smuzhiyun	trip0-cdev-num = <1>;
33*4882a593Smuzhiyun	trip0-cdev-name0 = "thermal-cpufreq-0";
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun	trip1-temp = <80000>;
36*4882a593Smuzhiyun	trip1-type = "active";
37*4882a593Smuzhiyun	trip1-cdev-num = <2>;
38*4882a593Smuzhiyun	trip1-cdev-name0 = "thermal-cpufreq-0";
39*4882a593Smuzhiyun	trip1-cdev-name1 = "thermal-fan";
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun	trip2-temp = <85000>;
42*4882a593Smuzhiyun	trip2-type = "critical";
43*4882a593Smuzhiyun	trip2-cdev-num = <0>;
44*4882a593Smuzhiyun}
45