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
8 title: Renesas R-Car Gen3 Thermal Sensor
9
10 description:
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
15 maintainers:
16 - Niklas Söderlund <niklas.soderlund@ragnatech.se>
17
18 $ref: thermal-sensor.yaml#
19
20 properties:
21 compatible:
22 enum:
23 - renesas,r8a774a1-thermal # RZ/G2M
24 - renesas,r8a774b1-thermal # RZ/G2N
25 - renesas,r8a774e1-thermal # RZ/G2H
26 - renesas,r8a7795-thermal # R-Car H3
27 - renesas,r8a7796-thermal # R-Car M3-W
28 - renesas,r8a77961-thermal # R-Car M3-W+
29 - renesas,r8a77965-thermal # R-Car M3-N
30 - renesas,r8a77980-thermal # R-Car V3H
31 - renesas,r8a779a0-thermal # R-Car V3U
32 - renesas,r8a779f0-thermal # R-Car S4-8
33 - renesas,r8a779g0-thermal # R-Car V4H
34 - renesas,r8a779h0-thermal # R-Car V4M
35
36 reg: true
37
38 interrupts:
39 items:
40 - description: TEMP1 interrupt
41 - description: TEMP2 interrupt
42 - description: TEMP3 interrupt
43
44 clocks:
45 maxItems: 1
46
47 power-domains:
48 maxItems: 1
49
50 resets:
51 maxItems: 1
52
53 "#thermal-sensor-cells":
54 const: 1
55
56 required:
57 - compatible
58 - reg
59 - clocks
60 - power-domains
61 - resets
62
63 if:
64 properties:
65 compatible:
66 contains:
67 enum:
68 - renesas,r8a779a0-thermal
69 then:
70 properties:
71 reg:
72 items:
73 - description: TSC0 registers
74 - description: TSC1 registers
75 - description: TSC2 registers
76 - description: TSC3 registers
77 - description: TSC4 registers
78 else:
79 properties:
80 reg:
81 minItems: 2
82 items:
83 - description: TSC1 registers
84 - description: TSC2 registers
85 - description: TSC3 registers
86 - description: TSC4 registers
87 if:
88 not:
89 properties:
90 compatible:
91 contains:
92 enum:
93 - renesas,r8a779f0-thermal
94 - renesas,r8a779g0-thermal
95 - renesas,r8a779h0-thermal
96 then:
97 required:
98 - interrupts
99
100 unevaluatedProperties: false
101
102 examples:
103 - |
104 #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
105 #include <dt-bindings/interrupt-controller/arm-gic.h>
106 #include <dt-bindings/power/r8a7795-sysc.h>
107
108 tsc: thermal@e6198000 {
109 compatible = "renesas,r8a7795-thermal";
110 reg = <0xe6198000 0x100>,
111 <0xe61a0000 0x100>,
112 <0xe61a8000 0x100>;
113 interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
114 <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
115 <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
116 clocks = <&cpg CPG_MOD 522>;
117 power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
118 resets = <&cpg 522>;
119 #thermal-sensor-cells = <1>;
120 };
121
122 thermal-zones {
123 sensor_thermal: sensor-thermal {
124 polling-delay-passive = <250>;
125 polling-delay = <1000>;
126 thermal-sensors = <&tsc 0>;
127
128 trips {
129 sensor1_crit: sensor1-crit {
130 temperature = <90000>;
131 hysteresis = <2000>;
132 type = "critical";
133 };
134 };
135 };
136 };
137 - |
138 #include <dt-bindings/clock/r8a779a0-cpg-mssr.h>
139 #include <dt-bindings/interrupt-controller/arm-gic.h>
140 #include <dt-bindings/power/r8a779a0-sysc.h>
141
142 tsc_r8a779a0: thermal@e6190000 {
143 compatible = "renesas,r8a779a0-thermal";
144 reg = <0xe6190000 0x200>,
145 <0xe6198000 0x200>,
146 <0xe61a0000 0x200>,
147 <0xe61a8000 0x200>,
148 <0xe61b0000 0x200>;
149 clocks = <&cpg CPG_MOD 919>;
150 power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
151 resets = <&cpg 919>;
152 #thermal-sensor-cells = <1>;
153 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.