1# SPDX-License-Identifier: GPL-2.0-only
2# Copyright (C) 2020 Renesas Electronics Corp.
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/thermal/rcar-thermal.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Renesas R-Car Thermal
9
10maintainers:
11  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
12
13properties:
14  compatible:
15    oneOf:
16      - items:
17          - enum:
18              - renesas,thermal-r8a73a4 # R-Mobile APE6
19              - renesas,thermal-r8a7779 # R-Car H1
20          - const: renesas,rcar-thermal # Generic without thermal-zone
21      - items:
22          - enum:
23              - renesas,thermal-r8a7742 # RZ/G1H
24              - renesas,thermal-r8a7743 # RZ/G1M
25              - renesas,thermal-r8a7744 # RZ/G1N
26          - const: renesas,rcar-gen2-thermal # Generic thermal-zone
27      - items:
28          - enum:
29              - renesas,thermal-r8a7790 # R-Car H2
30              - renesas,thermal-r8a7791 # R-Car M2-W
31              - renesas,thermal-r8a7792 # R-Car V2H
32              - renesas,thermal-r8a7793 # R-Car M2-N
33          - const: renesas,rcar-gen2-thermal # Generic thermal-zone
34          - const: renesas,rcar-thermal # Generic without thermal-zone
35      - items:
36          - enum:
37              - renesas,thermal-r8a774c0 # RZ/G2E
38              - renesas,thermal-r8a77970 # R-Car V3M
39              - renesas,thermal-r8a77990 # R-Car E3
40              - renesas,thermal-r8a77995 # R-Car D3
41  reg:
42    description:
43      Address ranges of the thermal registers. If more then one range is given
44      the first one must be the common registers followed by each sensor
45      according the the datasheet.
46    minItems: 1
47    maxItems: 4
48
49  interrupts:
50    minItems: 1
51    maxItems: 3
52
53  clocks:
54    maxItems: 1
55
56  power-domains:
57    maxItems: 1
58
59  resets:
60    maxItems: 1
61
62  "#thermal-sensor-cells":
63    const: 0
64
65if:
66  properties:
67    compatible:
68      contains:
69        enum:
70          - renesas,thermal-r8a73a4 # R-Mobile APE6
71          - renesas,thermal-r8a7779 # R-Car H1
72then:
73  required:
74    - compatible
75    - reg
76else:
77  required:
78    - compatible
79    - reg
80    - interrupts
81    - clocks
82    - power-domains
83    - resets
84
85additionalProperties: false
86
87examples:
88  # Example (non interrupt support)
89  - |
90    thermal@ffc48000 {
91            compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
92            reg = <0xffc48000 0x38>;
93    };
94
95  # Example (interrupt support)
96  - |
97    #include <dt-bindings/clock/r8a73a4-clock.h>
98    #include <dt-bindings/interrupt-controller/arm-gic.h>
99    #include <dt-bindings/interrupt-controller/irq.h>
100
101    thermal@e61f0000 {
102            compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";
103            reg = <0xe61f0000 0x14>, <0xe61f0100 0x38>,
104                  <0xe61f0200 0x38>, <0xe61f0300 0x38>;
105            interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
106            clocks = <&mstp5_clks R8A73A4_CLK_THERMAL>;
107            power-domains = <&pd_c5>;
108    };
109
110  # Example (with thermal-zone)
111  - |
112    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
113    #include <dt-bindings/interrupt-controller/arm-gic.h>
114    #include <dt-bindings/power/r8a7790-sysc.h>
115
116    thermal: thermal@e61f0000 {
117      compatible = "renesas,thermal-r8a7790",
118                   "renesas,rcar-gen2-thermal",
119                   "renesas,rcar-thermal";
120            reg = <0xe61f0000 0x10>, <0xe61f0100 0x38>;
121            interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
122            clocks = <&cpg CPG_MOD 522>;
123            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
124            resets = <&cpg 522>;
125            #thermal-sensor-cells = <0>;
126    };
127
128    thermal-zones {
129            cpu_thermal: cpu-thermal {
130                    polling-delay-passive = <1000>;
131                    polling-delay = <5000>;
132
133                    thermal-sensors = <&thermal>;
134
135                    trips {
136                            cpu-crit {
137                                    temperature = <115000>;
138                                    hysteresis = <0>;
139                                    type = "critical";
140                            };
141                    };
142                    cooling-maps {
143                    };
144            };
145    };
146