Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt

   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         };