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
   7                            fallback except R-Car V3M/D3 and RZ/G2E.
   8                           Examples with soctypes are:
   9                             - "renesas,thermal-r8a73a4" (R-Mobile APE6)
  10                             - "renesas,thermal-r8a7743" (RZ/G1M)
  11                             - "renesas,thermal-r8a7744" (RZ/G1N)
  12                             - "renesas,thermal-r8a774c0" (RZ/G2E)
  13                             - "renesas,thermal-r8a7779" (R-Car H1)
  14                             - "renesas,thermal-r8a7790" (R-Car H2)
  15                             - "renesas,thermal-r8a7791" (R-Car M2-W)
  16                             - "renesas,thermal-r8a7792" (R-Car V2H)
  17                             - "renesas,thermal-r8a7793" (R-Car M2-N)
  18                             - "renesas,thermal-r8a77970" (R-Car V3M)
  19                             - "renesas,thermal-r8a77995" (R-Car D3)
  20 - reg                   : Address range of the thermal registers.
  21                           The 1st reg will be recognized as common register
  22                           if it has "interrupts".
  23
  24 Option properties:
  25
  26 - interrupts            : If present should contain 3 interrupts for
  27                           R-Car V3M/D3 and RZ/G2E or 1 interrupt otherwise.
  28
  29 Example (non interrupt support):
  30
  31 thermal@ffc48000 {
  32         compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
  33         reg = <0xffc48000 0x38>;
  34 };
  35
  36 Example (interrupt support):
  37
  38 thermal@e61f0000 {
  39         compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";
  40         reg = <0xe61f0000 0x14
  41                 0xe61f0100 0x38
  42                 0xe61f0200 0x38
  43                 0xe61f0300 0x38>;
  44         interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
  45 };
  46
  47 Example (with thermal-zone):
  48
  49 thermal-zones {
  50         cpu_thermal: cpu-thermal {
  51                 polling-delay-passive   = <1000>;
  52                 polling-delay           = <5000>;
  53
  54                 thermal-sensors = <&thermal>;
  55
  56                 trips {
  57                         cpu-crit {
  58                                 temperature     = <115000>;
  59                                 hysteresis      = <0>;
  60                                 type            = "critical";
  61                         };
  62                 };
  63                 cooling-maps {
  64                 };
  65         };
  66 };
  67
  68 thermal: thermal@e61f0000 {
  69         compatible =    "renesas,thermal-r8a7790",
  70                         "renesas,rcar-gen2-thermal",
  71                         "renesas,rcar-thermal";
  72         reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
  73         interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
  74         clocks = <&mstp5_clks R8A7790_CLK_THERMAL>;
  75         power-domains = <&cpg_clocks>;
  76         #thermal-sensor-cells = <0>;
  77 };