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                             - "renesas,thermal-r8a7794" (R-Car E2)
  15 - reg                   : Address range of the thermal registers.
  16                           The 1st reg will be recognized as common register
  17                           if it has "interrupts".
  18
  19 Option properties:
  20
  21 - interrupts            : use interrupt
  22
  23 Example (non interrupt support):
  24
  25 thermal@ffc48000 {
  26         compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
  27         reg = <0xffc48000 0x38>;
  28 };
  29
  30 Example (interrupt support):
  31
  32 thermal@e61f0000 {
  33         compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";
  34         reg = <0xe61f0000 0x14
  35                 0xe61f0100 0x38
  36                 0xe61f0200 0x38
  37                 0xe61f0300 0x38>;
  38         interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
  39 };
  40
  41 Example (with thermal-zone):
  42
  43 thermal-zones {
  44         cpu_thermal: cpu-thermal {
  45                 polling-delay-passive   = <1000>;
  46                 polling-delay           = <5000>;
  47
  48                 thermal-sensors = <&thermal>;
  49
  50                 trips {
  51                         cpu-crit {
  52                                 temperature     = <115000>;
  53                                 hysteresis      = <0>;
  54                                 type            = "critical";
  55                         };
  56                 };
  57                 cooling-maps {
  58                 };
  59         };
  60 };
  61
  62 thermal: thermal@e61f0000 {
  63         compatible =    "renesas,thermal-r8a7790",
  64                         "renesas,rcar-gen2-thermal",
  65                         "renesas,rcar-thermal";
  66         reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
  67         interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
  68         clocks = <&mstp5_clks R8A7790_CLK_THERMAL>;
  69         power-domains = <&cpg_clocks>;
  70         #thermal-sensor-cells = <0>;
  71 };