brcm,sr-thermal.txt

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    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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