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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/thermal/imx-thermal.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP i.MX Thermal
maintainers:
- Shawn Guo <shawnguo@kernel.org>
properties:
compatible:
oneOf:
- enum:
- fsl,imx6q-tempmon
- fsl,imx6sx-tempmon
- fsl,imx7d-tempmon
- items:
- enum:
- fsl,imx6sll-tempmon
- fsl,imx6ul-tempmon
- const: fsl,imx6sx-tempmon
interrupts:
description: |
The interrupt output of the controller, i.MX6Q has IRQ_HIGH which
will be triggered when temperature is higher than high threshold,
i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is IRQ_LOW
and the other is IRQ_PANIC, when temperature is lower than low
threshold, IRQ_LOW will be triggered, when temperature is higher
than panic threshold, IRQ_PANIC will be triggered, and system can
be configured to auto reboot by SRC module for IRQ_PANIC. IRQ_HIGH,
IRQ_LOW and IRQ_PANIC share same interrupt output of controller.
maxItems: 1
nvmem-cells:
items:
- description: Phandle to the calibration data provided by ocotp
- description: Phandle to the temperature grade provided by ocotp
nvmem-cell-names:
items:
- const: calib
- const: temp_grade
fsl,tempmon:
$ref: /schemas/types.yaml#/definitions/phandle
description: Phandle to anatop system controller node.
fsl,tempmon-data:
$ref: /schemas/types.yaml#/definitions/phandle
description: |
Deprecated property, phandle pointer to fuse controller that contains
TEMPMON calibration data, e.g. OCOTP on imx6q. The details about
calibration data can be found in SoC Reference Manual.
deprecated: true
clocks:
maxItems: 1
"#thermal-sensor-cells":
const: 0
required:
- compatible
- interrupts
- fsl,tempmon
- nvmem-cells
- nvmem-cell-names
allOf:
- $ref: thermal-sensor.yaml#
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/imx6sx-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
efuse@21bc000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,imx6sx-ocotp", "syscon";
reg = <0x021bc000 0x4000>;
clocks = <&clks IMX6SX_CLK_OCOTP>;
tempmon_calib: calib@38 {
reg = <0x38 4>;
};
tempmon_temp_grade: temp-grade@20 {
reg = <0x20 4>;
};
};
anatop@20c8000 {
compatible = "fsl,imx6q-anatop", "syscon", "simple-mfd";
reg = <0x020c8000 0x1000>;
interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>,
<0 54 IRQ_TYPE_LEVEL_HIGH>,
<0 127 IRQ_TYPE_LEVEL_HIGH>;
tempmon {
compatible = "fsl,imx6sx-tempmon";
interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
fsl,tempmon = <&anatop>;
nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>;
nvmem-cell-names = "calib", "temp_grade";
clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>;
#thermal-sensor-cells = <0>;
};
};
|
