xref: /linux/Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml (revision f9bff0e31881d03badf191d3b0005839391f5f2b) 
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
16properties:
17  compatible:
18    items:
19      - enum:
20          - renesas,r9a07g043-tsu # RZ/G2UL and RZ/Five
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
40required:
41  - compatible
42  - reg
43  - clocks
44  - power-domains
45  - resets
46  - "#thermal-sensor-cells"
47
48additionalProperties: false
49
50examples:
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    };
79