xref: /linux/Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800) 
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
7title: Renesas RZ/G2L Thermal Sensor Unit
8
9description:
10  On RZ/G2L SoCs, the thermal sensor unit (TSU) measures the
11  temperature(Tj) inside the LSI.
12
13maintainers:
14  - Biju Das <biju.das.jz@bp.renesas.com>
15
16$ref: thermal-sensor.yaml#
17
18properties:
19  compatible:
20    items:
21      - enum:
22          - renesas,r9a07g043-tsu # RZ/G2UL and RZ/Five
23          - renesas,r9a07g044-tsu # RZ/G2{L,LC}
24          - renesas,r9a07g054-tsu # RZ/V2L
25      - const: renesas,rzg2l-tsu
26
27  reg:
28    maxItems: 1
29
30  clocks:
31    maxItems: 1
32
33  power-domains:
34    maxItems: 1
35
36  resets:
37    maxItems: 1
38
39  "#thermal-sensor-cells":
40    const: 1
41
42required:
43  - compatible
44  - reg
45  - clocks
46  - power-domains
47  - resets
48
49unevaluatedProperties: false
50
51examples:
52  - |
53    #include <dt-bindings/clock/r9a07g044-cpg.h>
54
55    tsu: thermal@10059400 {
56        compatible = "renesas,r9a07g044-tsu",
57                     "renesas,rzg2l-tsu";
58        reg = <0x10059400 0x400>;
59        clocks = <&cpg CPG_MOD R9A07G044_TSU_PCLK>;
60        resets = <&cpg R9A07G044_TSU_PRESETN>;
61        power-domains = <&cpg>;
62        #thermal-sensor-cells = <1>;
63    };
64
65    thermal-zones {
66        cpu-thermal {
67            polling-delay-passive = <250>;
68            polling-delay = <1000>;
69            thermal-sensors = <&tsu 0>;
70
71            trips {
72                sensor_crit: sensor-crit {
73                    temperature = <125000>;
74                    hysteresis = <1000>;
75                    type = "critical";
76                };
77            };
78        };
79    };
80