xref: /freebsd/sys/contrib/device-tree/Bindings/thermal/rcar-gen3-thermal.yaml (revision 9f44a47fd07924afc035991af15d84e6585dea4f) 
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 most R-Car Gen3 and later SoCs, the thermal sensor controllers (TSC)
12  control the thermal sensors (THS) which are the analog circuits for
13  measuring temperature (Tj) 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      - renesas,r8a779f0-thermal # R-Car S4-8
31
32  reg: true
33
34  interrupts:
35    items:
36      - description: TEMP1 interrupt
37      - description: TEMP2 interrupt
38      - description: TEMP3 interrupt
39
40  clocks:
41    maxItems: 1
42
43  power-domains:
44    maxItems: 1
45
46  resets:
47    maxItems: 1
48
49  "#thermal-sensor-cells":
50    const: 1
51
52required:
53  - compatible
54  - reg
55  - clocks
56  - power-domains
57  - resets
58  - "#thermal-sensor-cells"
59
60if:
61  properties:
62    compatible:
63      contains:
64        enum:
65          - renesas,r8a779a0-thermal
66then:
67  properties:
68    reg:
69      items:
70        - description: TSC0 registers
71        - description: TSC1 registers
72        - description: TSC2 registers
73        - description: TSC3 registers
74        - description: TSC4 registers
75else:
76  properties:
77    reg:
78      minItems: 2
79      items:
80        - description: TSC1 registers
81        - description: TSC2 registers
82        - description: TSC3 registers
83  if:
84    not:
85      properties:
86        compatible:
87          contains:
88            enum:
89              - renesas,r8a779f0-thermal
90  then:
91    required:
92      - interrupts
93
94additionalProperties: false
95
96examples:
97  - |
98    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
99    #include <dt-bindings/interrupt-controller/arm-gic.h>
100    #include <dt-bindings/power/r8a7795-sysc.h>
101
102    tsc: thermal@e6198000 {
103            compatible = "renesas,r8a7795-thermal";
104            reg = <0xe6198000 0x100>,
105                  <0xe61a0000 0x100>,
106                  <0xe61a8000 0x100>;
107            interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
108                         <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
109                         <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
110            clocks = <&cpg CPG_MOD 522>;
111            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
112            resets = <&cpg 522>;
113            #thermal-sensor-cells = <1>;
114    };
115
116    thermal-zones {
117            sensor_thermal: sensor-thermal {
118                    polling-delay-passive = <250>;
119                    polling-delay = <1000>;
120                    thermal-sensors = <&tsc 0>;
121
122                    trips {
123                            sensor1_crit: sensor1-crit {
124                                    temperature = <90000>;
125                                    hysteresis = <2000>;
126                                    type = "critical";
127                            };
128                    };
129            };
130    };
131  - |
132    #include <dt-bindings/clock/r8a779a0-cpg-mssr.h>
133    #include <dt-bindings/interrupt-controller/arm-gic.h>
134    #include <dt-bindings/power/r8a779a0-sysc.h>
135
136    tsc_r8a779a0: thermal@e6190000 {
137            compatible = "renesas,r8a779a0-thermal";
138            reg = <0xe6190000 0x200>,
139                  <0xe6198000 0x200>,
140                  <0xe61a0000 0x200>,
141                  <0xe61a8000 0x200>,
142                  <0xe61b0000 0x200>;
143            clocks = <&cpg CPG_MOD 919>;
144            power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
145            resets = <&cpg 919>;
146            #thermal-sensor-cells = <1>;
147    };
148