1# SPDX-License-Identifier: GPL-2.0-only
2# Copyright (C) 2020 Renesas Electronics Corp.
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/thermal/rcar-gen3-thermal.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Renesas R-Car Gen3 Thermal Sensor
9
10description:
11  On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal
12  sensors (THS) which are the analog circuits for measuring temperature (Tj)
13  inside the LSI.
14
15maintainers:
16  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
17
18properties:
19  compatible:
20    enum:
21      - renesas,r8a774a1-thermal # RZ/G2M
22      - renesas,r8a774b1-thermal # RZ/G2N
23      - renesas,r8a774e1-thermal # RZ/G2H
24      - renesas,r8a7795-thermal  # R-Car H3
25      - renesas,r8a7796-thermal  # R-Car M3-W
26      - renesas,r8a77961-thermal # R-Car M3-W+
27      - renesas,r8a77965-thermal # R-Car M3-N
28      - renesas,r8a77980-thermal # R-Car V3H
29      - renesas,r8a779a0-thermal # R-Car V3U
30
31  reg:
32    minItems: 2
33    maxItems: 4
34    items:
35      - description: TSC1 registers
36      - description: TSC2 registers
37      - description: TSC3 registers
38      - description: TSC4 registers
39
40  interrupts:
41    items:
42      - description: TEMP1 interrupt
43      - description: TEMP2 interrupt
44      - description: TEMP3 interrupt
45
46  clocks:
47    maxItems: 1
48
49  power-domains:
50    maxItems: 1
51
52  resets:
53    maxItems: 1
54
55  "#thermal-sensor-cells":
56    const: 1
57
58required:
59  - compatible
60  - reg
61  - clocks
62  - power-domains
63  - resets
64  - "#thermal-sensor-cells"
65
66if:
67  not:
68    properties:
69      compatible:
70        contains:
71          enum:
72            - renesas,r8a779a0-thermal
73then:
74  required:
75    - interrupts
76
77additionalProperties: false
78
79examples:
80  - |
81    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
82    #include <dt-bindings/interrupt-controller/arm-gic.h>
83    #include <dt-bindings/power/r8a7795-sysc.h>
84
85    tsc: thermal@e6198000 {
86            compatible = "renesas,r8a7795-thermal";
87            reg = <0xe6198000 0x100>,
88                  <0xe61a0000 0x100>,
89                  <0xe61a8000 0x100>;
90            interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
91                         <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
92                         <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
93            clocks = <&cpg CPG_MOD 522>;
94            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
95            resets = <&cpg 522>;
96            #thermal-sensor-cells = <1>;
97    };
98
99    thermal-zones {
100            sensor_thermal: sensor-thermal {
101                    polling-delay-passive = <250>;
102                    polling-delay = <1000>;
103                    thermal-sensors = <&tsc 0>;
104
105                    trips {
106                            sensor1_crit: sensor1-crit {
107                                    temperature = <90000>;
108                                    hysteresis = <2000>;
109                                    type = "critical";
110                            };
111                    };
112            };
113    };
114