summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
blob: 4a2eaf28e3fdfbc3a867ab8f28fadeb198c7d84c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
# SPDX-License-Identifier: (GPL-2.0 OR MIT)
# Copyright 2019 Linaro Ltd.
%YAML 1.2
---
$id: http://devicetree.org/schemas/thermal/qcom-tsens.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: QCOM SoC Temperature Sensor (TSENS)

maintainers:
  - Amit Kucheria <amitk@kernel.org>

description: |
  QCOM SoCs have TSENS IP to allow temperature measurement. There are currently
  three distinct major versions of the IP that is supported by a single driver.
  The IP versions are named v0.1, v1 and v2 in the driver, where v0.1 captures
  everything before v1 when there was no versioning information.

properties:
  compatible:
    oneOf:
      - description: msm9860 TSENS based
        items:
          - enum:
              - qcom,ipq8064-tsens

      - description: v0.1 of TSENS
        items:
          - enum:
              - qcom,mdm9607-tsens
              - qcom,msm8916-tsens
              - qcom,msm8939-tsens
              - qcom,msm8974-tsens
          - const: qcom,tsens-v0_1

      - description: v1 of TSENS
        items:
          - enum:
              - qcom,msm8976-tsens
              - qcom,qcs404-tsens
          - const: qcom,tsens-v1

      - description: v2 of TSENS
        items:
          - enum:
              - qcom,msm8996-tsens
              - qcom,msm8998-tsens
              - qcom,sc7180-tsens
              - qcom,sc7280-tsens
              - qcom,sc8180x-tsens
              - qcom,sdm845-tsens
              - qcom,sm8150-tsens
              - qcom,sm8250-tsens
              - qcom,sm8350-tsens
          - const: qcom,tsens-v2

  reg:
    items:
      - description: TM registers
      - description: SROT registers

  interrupts:
    minItems: 1
    items:
      - description: Combined interrupt if upper or lower threshold crossed
      - description: Interrupt if critical threshold crossed

  interrupt-names:
    minItems: 1
    items:
      - const: uplow
      - const: critical

  nvmem-cells:
    minItems: 1
    maxItems: 2
    description:
      Reference to an nvmem node for the calibration data

  nvmem-cell-names:
    minItems: 1
    items:
      - const: calib
      - enum:
          - calib_backup
          - calib_sel

  "#qcom,sensors":
    description:
      Number of sensors enabled on this platform
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 1
    maximum: 16

  "#thermal-sensor-cells":
    const: 1
    description:
      Number of cells required to uniquely identify the thermal sensors. Since
      we have multiple sensors this is set to 1

required:
  - compatible
  - interrupts
  - interrupt-names
  - "#thermal-sensor-cells"
  - "#qcom,sensors"

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,ipq8064-tsens
              - qcom,mdm9607-tsens
              - qcom,msm8916-tsens
              - qcom,msm8974-tsens
              - qcom,msm8976-tsens
              - qcom,qcs404-tsens
              - qcom,tsens-v0_1
              - qcom,tsens-v1
    then:
      properties:
        interrupts:
          maxItems: 1
        interrupt-names:
          maxItems: 1

    else:
      properties:
        interrupts:
          minItems: 2
        interrupt-names:
          minItems: 2

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,tsens-v0_1
              - qcom,tsens-v1
              - qcom,tsens-v2

    then:
      required:
        - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    // Example msm9860 based SoC (ipq8064):
    gcc: clock-controller {

           /* ... */

           tsens: thermal-sensor {
                compatible = "qcom,ipq8064-tsens";

                 nvmem-cells = <&tsens_calib>, <&tsens_calib_backup>;
                 nvmem-cell-names = "calib", "calib_backup";
                 interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
                 interrupt-names = "uplow";

                 #qcom,sensors = <11>;
                 #thermal-sensor-cells = <1>;
          };
    };

  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    // Example 1 (legacy: for pre v1 IP):
    tsens1: thermal-sensor@900000 {
           compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1";
           reg = <0x4a9000 0x1000>, /* TM */
                 <0x4a8000 0x1000>; /* SROT */

           nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
           nvmem-cell-names = "calib", "calib_sel";

           interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
           interrupt-names = "uplow";

           #qcom,sensors = <5>;
           #thermal-sensor-cells = <1>;
    };

  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    // Example 2 (for any platform containing v1 of the TSENS IP):
    tsens2: thermal-sensor@4a9000 {
          compatible = "qcom,qcs404-tsens", "qcom,tsens-v1";
          reg = <0x004a9000 0x1000>, /* TM */
                <0x004a8000 0x1000>; /* SROT */

          nvmem-cells = <&tsens_caldata>;
          nvmem-cell-names = "calib";

          interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>;
          interrupt-names = "uplow";

          #qcom,sensors = <10>;
          #thermal-sensor-cells = <1>;
    };

  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    // Example 3 (for any platform containing v2 of the TSENS IP):
    tsens3: thermal-sensor@c263000 {
           compatible = "qcom,sdm845-tsens", "qcom,tsens-v2";
           reg = <0xc263000 0x1ff>,
                 <0xc222000 0x1ff>;

           interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
                        <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>;
           interrupt-names = "uplow", "critical";

           #qcom,sensors = <13>;
           #thermal-sensor-cells = <1>;
    };
...