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