xref: /freebsd/sys/contrib/device-tree/Bindings/thermal/imx-thermal.yaml (revision d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/thermal/imx-thermal.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NXP i.MX Thermal
8
9maintainers:
10  - Shawn Guo <shawnguo@kernel.org>
11  - Anson Huang <Anson.Huang@nxp.com>
12
13properties:
14  compatible:
15    oneOf:
16      - enum:
17          - fsl,imx6q-tempmon
18          - fsl,imx6sx-tempmon
19          - fsl,imx7d-tempmon
20      - items:
21          - enum:
22              - fsl,imx6sll-tempmon
23              - fsl,imx6ul-tempmon
24          - const: fsl,imx6sx-tempmon
25
26  interrupts:
27    description: |
28      The interrupt output of the controller, i.MX6Q has IRQ_HIGH which
29      will be triggered when temperature is higher than high threshold,
30      i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is IRQ_LOW
31      and the other is IRQ_PANIC, when temperature is lower than low
32      threshold, IRQ_LOW will be triggered, when temperature is higher
33      than panic threshold, IRQ_PANIC will be triggered, and system can
34      be configured to auto reboot by SRC module for IRQ_PANIC. IRQ_HIGH,
35      IRQ_LOW and IRQ_PANIC share same interrupt output of controller.
36    maxItems: 1
37
38  nvmem-cells:
39    items:
40      - description: Phandle to the calibration data provided by ocotp
41      - description: Phandle to the temperature grade provided by ocotp
42
43  nvmem-cell-names:
44    items:
45      - const: calib
46      - const: temp_grade
47
48  fsl,tempmon:
49    $ref: /schemas/types.yaml#/definitions/phandle
50    description: Phandle to anatop system controller node.
51
52  fsl,tempmon-data:
53    $ref: /schemas/types.yaml#/definitions/phandle
54    description: |
55      Deprecated property, phandle pointer to fuse controller that contains
56      TEMPMON calibration data, e.g. OCOTP on imx6q. The details about
57      calibration data can be found in SoC Reference Manual.
58    deprecated: true
59
60  clocks:
61    maxItems: 1
62
63required:
64  - compatible
65  - interrupts
66  - fsl,tempmon
67  - nvmem-cells
68  - nvmem-cell-names
69
70additionalProperties: false
71
72examples:
73  - |
74    #include <dt-bindings/clock/imx6sx-clock.h>
75    #include <dt-bindings/interrupt-controller/arm-gic.h>
76
77    efuse@21bc000 {
78         #address-cells = <1>;
79         #size-cells = <1>;
80         compatible = "fsl,imx6sx-ocotp", "syscon";
81         reg = <0x021bc000 0x4000>;
82         clocks = <&clks IMX6SX_CLK_OCOTP>;
83
84         tempmon_calib: calib@38 {
85             reg = <0x38 4>;
86         };
87
88         tempmon_temp_grade: temp-grade@20 {
89             reg = <0x20 4>;
90         };
91    };
92
93    anatop@20c8000 {
94        compatible = "fsl,imx6q-anatop", "syscon", "simple-mfd";
95        reg = <0x020c8000 0x1000>;
96        interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>,
97                     <0 54 IRQ_TYPE_LEVEL_HIGH>,
98                     <0 127 IRQ_TYPE_LEVEL_HIGH>;
99
100        tempmon {
101             compatible = "fsl,imx6sx-tempmon";
102             interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
103             fsl,tempmon = <&anatop>;
104             nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>;
105             nvmem-cell-names = "calib", "temp_grade";
106             clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>;
107        };
108    };
109