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