Kernel-4.18.0-80.el8_rcar-thermal

  • Renesas R-Car Thermal

Required properties:

  • compatible : “renesas,thermal-“,
             "renesas,rcar-gen2-thermal" (with thermal-zone) or
             "renesas,rcar-thermal" (without thermal-zone) as
                         fallback except R-Car D3.
            Examples with soctypes are:
              - "renesas,thermal-r8a73a4" (R-Mobile APE6)
              - "renesas,thermal-r8a7743" (RZ/G1M)
              - "renesas,thermal-r8a7779" (R-Car H1)
              - "renesas,thermal-r8a7790" (R-Car H2)
              - "renesas,thermal-r8a7791" (R-Car M2-W)
              - "renesas,thermal-r8a7792" (R-Car V2H)
              - "renesas,thermal-r8a7793" (R-Car M2-N)
              - "renesas,thermal-r8a77995" (R-Car D3)
    
  • reg : Address range of the thermal registers.
            The 1st reg will be recognized as common register
            if it has "interrupts".
    

Option properties:

  • interrupts : If present should contain 3 interrupts for
                        R-Car D3 or 1 interrupt otherwise.
    

Example (non interrupt support):

thermal@ffc48000 {
compatible = “renesas,thermal-r8a7779”, “renesas,rcar-thermal”;
reg = <0xffc48000 0x38>;
};

Example (interrupt support):

thermal@e61f0000 {
compatible = “renesas,thermal-r8a73a4”, “renesas,rcar-thermal”;
reg = <0xe61f0000 0x14
0xe61f0100 0x38
0xe61f0200 0x38
0xe61f0300 0x38>;
interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
};

Example (with thermal-zone):

thermal-zones {
cpu_thermal: cpu-thermal {
polling-delay-passive = <1000>;
polling-delay = <5000>;

    thermal-sensors = <&thermal>;

    trips {
        cpu-crit {
            temperature    = <115000>;
            hysteresis    = <0>;
            type        = "critical";
        };
    };
    cooling-maps {
    };
};

};

thermal: thermal@e61f0000 {
compatible = “renesas,thermal-r8a7790”,
“renesas,rcar-gen2-thermal”,
“renesas,rcar-thermal”;
reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp5_clks R8A7790_CLK_THERMAL>;
power-domains = <&cpg_clocks>;
#thermal-sensor-cells = <0>;
};