imx-thermal.yaml

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

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