Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/thermal/rzg2l-thermal.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Renesas RZ/G2L Thermal Sensor Unit
   8
   9 description:
  10   On RZ/G2L SoCs, the thermal sensor unit (TSU) measures the
  11   temperature(Tj) inside the LSI.
  12
  13 maintainers:
  14   - Biju Das <biju.das.jz@bp.renesas.com>
  15
  16 properties:
  17   compatible:
  18     items:
  19       - enum:
  20           - renesas,r9a07g043-tsu # RZ/G2UL
  21           - renesas,r9a07g044-tsu # RZ/G2{L,LC}
  22           - renesas,r9a07g054-tsu # RZ/V2L
  23       - const: renesas,rzg2l-tsu
  24
  25   reg:
  26     maxItems: 1
  27
  28   clocks:
  29     maxItems: 1
  30
  31   power-domains:
  32     maxItems: 1
  33
  34   resets:
  35     maxItems: 1
  36
  37   "#thermal-sensor-cells":
  38     const: 1
  39
  40 required:
  41   - compatible
  42   - reg
  43   - clocks
  44   - power-domains
  45   - resets
  46   - "#thermal-sensor-cells"
  47
  48 additionalProperties: false
  49
  50 examples:
  51   - |
  52     #include <dt-bindings/clock/r9a07g044-cpg.h>
  53
  54     tsu: thermal@10059400 {
  55             compatible = "renesas,r9a07g044-tsu",
  56                          "renesas,rzg2l-tsu";
  57             reg = <0x10059400 0x400>;
  58             clocks = <&cpg CPG_MOD R9A07G044_TSU_PCLK>;
  59             resets = <&cpg R9A07G044_TSU_PRESETN>;
  60             power-domains = <&cpg>;
  61             #thermal-sensor-cells = <1>;
  62     };
  63
  64     thermal-zones {
  65             cpu-thermal {
  66                     polling-delay-passive = <250>;
  67                     polling-delay = <1000>;
  68                     thermal-sensors = <&tsu 0>;
  69
  70                     trips {
  71                             sensor_crit: sensor-crit {
  72                                     temperature = <125000>;
  73                                     hysteresis = <1000>;
  74                                     type = "critical";
  75                             };
  76                     };
  77             };
  78     };