1 * Broadcom Stingray Thermal
2
3 This binding describes thermal sensors that is part of Stingray SoCs.
4
5 Required properties:
6 - compatible : Must be "brcm,sr-thermal"
7 - reg : Memory where tmon data will be available.
8 - brcm,tmon-mask: A one cell bit mask of valid TMON sources.
9 Each bit represents single TMON source.
10 - #thermal-sensor-cells : Thermal sensor phandler
11 - polling-delay: Max number of milliseconds to wait between polls.
12 - thermal-sensors: A list of thermal sensor phandles and specifier.
13 specifier value is tmon ID and it should be
14 in correspond with brcm,tmon-mask.
15 - temperature: trip temperature threshold in millicelsius.
16
17 Example:
18 tmons {
19 compatible = "simple-bus";
20 #address-cells = <1>;
21 #size-cells = <1>;
22 ranges = <0x0 0x0 0x8f100000 0x100>;
23
24 tmon: tmon@0 {
25 compatible = "brcm,sr-thermal";
26 reg = <0x0 0x40>;
27 brcm,tmon-mask = <0x3f>;
28 #thermal-sensor-cells = <1>;
29 };
30 };
31
32 thermal-zones {
33 ihost0_thermal: ihost0-thermal {
34 polling-delay-passive = <0>;
35 polling-delay = <1000>;
36 thermal-sensors = <&tmon 0>;
37 trips {
38 cpu-crit {
39 temperature = <105000>;
40 hysteresis = <0>;
41 type = "critical";
42 };
43 };
44 };
45 ihost1_thermal: ihost1-thermal {
46 polling-delay-passive = <0>;
47 polling-delay = <1000>;
48 thermal-sensors = <&tmon 1>;
49 trips {
50 cpu-crit {
51 temperature = <105000>;
52 hysteresis = <0>;
53 type = "critical";
54 };
55 };
56 };
57 ihost2_thermal: ihost2-thermal {
58 polling-delay-passive = <0>;
59 polling-delay = <1000>;
60 thermal-sensors = <&tmon 2>;
61 trips {
62 cpu-crit {
63 temperature = <105000>;
64 hysteresis = <0>;
65 type = "critical";
66 };
67 };
68 };
69 ihost3_thermal: ihost3-thermal {
70 polling-delay-passive = <0>;
71 polling-delay = <1000>;
72 thermal-sensors = <&tmon 3>;
73 trips {
74 cpu-crit {
75 temperature = <105000>;
76 hysteresis = <0>;
77 type = "critical";
78 };
79 };
80 };
81 crmu_thermal: crmu-thermal {
82 polling-delay-passive = <0>;
83 polling-delay = <1000>;
84 thermal-sensors = <&tmon 4>;
85 trips {
86 cpu-crit {
87 temperature = <105000>;
88 hysteresis = <0>;
89 type = "critical";
90 };
91 };
92 };
93 nitro_thermal: nitro-thermal {
94 polling-delay-passive = <0>;
95 polling-delay = <1000>;
96 thermal-sensors = <&tmon 5>;
97 trips {
98 cpu-crit {
99 temperature = <105000>;
100 hysteresis = <0>;
101 type = "critical";
102 };
103 };
104 };
105 };
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