| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | |
| 7 | title: NXP i.MX Thermal |
| 8 | |
| 9 | maintainers: |
| 10 | - Shawn Guo <shawnguo@kernel.org> |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 11 | |
| 12 | properties: |
| 13 | compatible: |
| 14 | oneOf: |
| 15 | - enum: |
| 16 | - fsl,imx6q-tempmon |
| 17 | - fsl,imx6sx-tempmon |
| 18 | - fsl,imx7d-tempmon |
| 19 | - items: |
| 20 | - enum: |
| 21 | - fsl,imx6sll-tempmon |
| 22 | - fsl,imx6ul-tempmon |
| 23 | - const: fsl,imx6sx-tempmon |
| 24 | |
| 25 | interrupts: |
| 26 | description: | |
| 27 | The interrupt output of the controller, i.MX6Q has IRQ_HIGH which |
| 28 | will be triggered when temperature is higher than high threshold, |
| 29 | i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is IRQ_LOW |
| 30 | and the other is IRQ_PANIC, when temperature is lower than low |
| 31 | threshold, IRQ_LOW will be triggered, when temperature is higher |
| 32 | than panic threshold, IRQ_PANIC will be triggered, and system can |
| 33 | be configured to auto reboot by SRC module for IRQ_PANIC. IRQ_HIGH, |
| 34 | IRQ_LOW and IRQ_PANIC share same interrupt output of controller. |
| 35 | maxItems: 1 |
| 36 | |
| 37 | nvmem-cells: |
| 38 | items: |
| 39 | - description: Phandle to the calibration data provided by ocotp |
| 40 | - description: Phandle to the temperature grade provided by ocotp |
| 41 | |
| 42 | nvmem-cell-names: |
| 43 | items: |
| 44 | - const: calib |
| 45 | - const: temp_grade |
| 46 | |
| 47 | fsl,tempmon: |
| 48 | $ref: /schemas/types.yaml#/definitions/phandle |
| 49 | description: Phandle to anatop system controller node. |
| 50 | |
| 51 | fsl,tempmon-data: |
| 52 | $ref: /schemas/types.yaml#/definitions/phandle |
| 53 | description: | |
| 54 | Deprecated property, phandle pointer to fuse controller that contains |
| 55 | TEMPMON calibration data, e.g. OCOTP on imx6q. The details about |
| 56 | calibration data can be found in SoC Reference Manual. |
| 57 | deprecated: true |
| 58 | |
| 59 | clocks: |
| 60 | maxItems: 1 |
| 61 | |
| 62 | "#thermal-sensor-cells": |
| 63 | const: 0 |
| 64 | |
| 65 | required: |
| 66 | - compatible |
| 67 | - interrupts |
| 68 | - fsl,tempmon |
| 69 | - nvmem-cells |
| 70 | - nvmem-cell-names |
| 71 | |
| 72 | allOf: |
| 73 | - $ref: thermal-sensor.yaml# |
| 74 | |
| 75 | additionalProperties: false |
| 76 | |
| 77 | examples: |
| 78 | - | |
| 79 | #include <dt-bindings/clock/imx6sx-clock.h> |
| 80 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 81 | |
| 82 | efuse@21bc000 { |
| 83 | #address-cells = <1>; |
| 84 | #size-cells = <1>; |
| 85 | compatible = "fsl,imx6sx-ocotp", "syscon"; |
| 86 | reg = <0x021bc000 0x4000>; |
| 87 | clocks = <&clks IMX6SX_CLK_OCOTP>; |
| 88 | |
| 89 | tempmon_calib: calib@38 { |
| 90 | reg = <0x38 4>; |
| 91 | }; |
| 92 | |
| 93 | tempmon_temp_grade: temp-grade@20 { |
| 94 | reg = <0x20 4>; |
| 95 | }; |
| 96 | }; |
| 97 | |
| 98 | anatop@20c8000 { |
| 99 | compatible = "fsl,imx6q-anatop", "syscon", "simple-mfd"; |
| 100 | reg = <0x020c8000 0x1000>; |
| 101 | interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>, |
| 102 | <0 54 IRQ_TYPE_LEVEL_HIGH>, |
| 103 | <0 127 IRQ_TYPE_LEVEL_HIGH>; |
| 104 | |
| 105 | tempmon { |
| 106 | compatible = "fsl,imx6sx-tempmon"; |
| 107 | interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>; |
| 108 | fsl,tempmon = <&anatop>; |
| 109 | nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>; |
| 110 | nvmem-cell-names = "calib", "temp_grade"; |
| 111 | clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>; |
| 112 | #thermal-sensor-cells = <0>; |
| 113 | }; |
| 114 | }; |