Documentation/devicetree/bindings/thermal/rcar-thermal.txt

   1 * Renesas R-Car Thermal
   2
   3 Required properties:
   4 - compatible            : "renesas,thermal-<soctype>",
   5                            "renesas,rcar-gen2-thermal" (with thermal-zone) or
   6                            "renesas,rcar-thermal" (without thermal-zone) as fallback.
   7                           Examples with soctypes are:
   8                             - "renesas,thermal-r8a73a4" (R-Mobile APE6)
   9                             - "renesas,thermal-r8a7779" (R-Car H1)
  10                             - "renesas,thermal-r8a7790" (R-Car H2)
  11                             - "renesas,thermal-r8a7791" (R-Car M2-W)
  12                             - "renesas,thermal-r8a7792" (R-Car V2H)
  13                             - "renesas,thermal-r8a7793" (R-Car M2-N)
  14 - reg                   : Address range of the thermal registers.
  15                           The 1st reg will be recognized as common register
  16                           if it has "interrupts".
  17
  18 Option properties:
  19
  20 - interrupts            : use interrupt
  21
  22 Example (non interrupt support):
  23
  24 thermal@ffc48000 {
  25         compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
  26         reg = <0xffc48000 0x38>;
  27 };
  28
  29 Example (interrupt support):
  30
  31 thermal@e61f0000 {
  32         compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";
  33         reg = <0xe61f0000 0x14
  34                 0xe61f0100 0x38
  35                 0xe61f0200 0x38
  36                 0xe61f0300 0x38>;
  37         interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
  38 };
  39
  40 Example (with thermal-zone):
  41
  42 thermal-zones {
  43         cpu_thermal: cpu-thermal {
  44                 polling-delay-passive   = <1000>;
  45                 polling-delay           = <5000>;
  46
  47                 thermal-sensors = <&thermal>;
  48
  49                 trips {
  50                         cpu-crit {
  51                                 temperature     = <115000>;
  52                                 hysteresis      = <0>;
  53                                 type            = "critical";
  54                         };
  55                 };
  56                 cooling-maps {
  57                 };
  58         };
  59 };
  60
  61 thermal: thermal@e61f0000 {
  62         compatible =    "renesas,thermal-r8a7790",
  63                         "renesas,rcar-gen2-thermal",
  64                         "renesas,rcar-thermal";
  65         reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
  66         interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
  67         clocks = <&mstp5_clks R8A7790_CLK_THERMAL>;
  68         power-domains = <&cpg_clocks>;
  69         #thermal-sensor-cells = <0>;
  70 };