qcom-tsens.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
    2 # Copyright 2019 Linaro Ltd.
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/thermal/qcom-tsens.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: QCOM SoC Temperature Sensor (TSENS)
    9 
   10 maintainers:
   11   - Amit Kucheria <amitk@kernel.org>
   12 
   13 description: |
   14   QCOM SoCs have TSENS IP to allow temperature measurement. There are currently
   15   three distinct major versions of the IP that is supported by a single driver.
   16   The IP versions are named v0.1, v1 and v2 in the driver, where v0.1 captures
   17   everything before v1 when there was no versioning information.
   18 
   19 properties:
   20   compatible:
   21     oneOf:
   22       - description: msm8960 TSENS based
   23         items:
   24           - enum:
   25               - qcom,ipq8064-tsens
   26               - qcom,msm8960-tsens
   27 
   28       - description: v0.1 of TSENS
   29         items:
   30           - enum:
   31               - qcom,mdm9607-tsens
   32               - qcom,msm8916-tsens
   33               - qcom,msm8939-tsens
   34               - qcom,msm8974-tsens
   35           - const: qcom,tsens-v0_1
   36 
   37       - description: v1 of TSENS
   38         items:
   39           - enum:
   40               - qcom,msm8976-tsens
   41               - qcom,qcs404-tsens
   42           - const: qcom,tsens-v1
   43 
   44       - description: v2 of TSENS
   45         items:
   46           - enum:
   47               - qcom,msm8953-tsens
   48               - qcom,msm8996-tsens
   49               - qcom,msm8998-tsens
   50               - qcom,sc7180-tsens
   51               - qcom,sc7280-tsens
   52               - qcom,sc8180x-tsens
   53               - qcom,sc8280xp-tsens
   54               - qcom,sdm630-tsens
   55               - qcom,sdm845-tsens
   56               - qcom,sm6350-tsens
   57               - qcom,sm8150-tsens
   58               - qcom,sm8250-tsens
   59               - qcom,sm8350-tsens
   60           - const: qcom,tsens-v2
   61 
   62   reg:
   63     items:
   64       - description: TM registers
   65       - description: SROT registers
   66 
   67   interrupts:
   68     minItems: 1
   69     items:
   70       - description: Combined interrupt if upper or lower threshold crossed
   71       - description: Interrupt if critical threshold crossed
   72 
   73   interrupt-names:
   74     minItems: 1
   75     items:
   76       - const: uplow
   77       - const: critical
   78 
   79   nvmem-cells:
   80     minItems: 1
   81     maxItems: 2
   82     description:
   83       Reference to an nvmem node for the calibration data
   84 
   85   nvmem-cell-names:
   86     minItems: 1
   87     items:
   88       - const: calib
   89       - enum:
   90           - calib_backup
   91           - calib_sel
   92 
   93   "#qcom,sensors":
   94     description:
   95       Number of sensors enabled on this platform
   96     $ref: /schemas/types.yaml#/definitions/uint32
   97     minimum: 1
   98     maximum: 16
   99 
  100   "#thermal-sensor-cells":
  101     const: 1
  102     description:
  103       Number of cells required to uniquely identify the thermal sensors. Since
  104       we have multiple sensors this is set to 1
  105 
  106 required:
  107   - compatible
  108   - interrupts
  109   - interrupt-names
  110   - "#thermal-sensor-cells"
  111   - "#qcom,sensors"
  112 
  113 allOf:
  114   - if:
  115       properties:
  116         compatible:
  117           contains:
  118             enum:
  119               - qcom,ipq8064-tsens
  120               - qcom,mdm9607-tsens
  121               - qcom,msm8916-tsens
  122               - qcom,msm8960-tsens
  123               - qcom,msm8974-tsens
  124               - qcom,msm8976-tsens
  125               - qcom,qcs404-tsens
  126               - qcom,tsens-v0_1
  127               - qcom,tsens-v1
  128     then:
  129       properties:
  130         interrupts:
  131           maxItems: 1
  132         interrupt-names:
  133           maxItems: 1
  134 
  135     else:
  136       properties:
  137         interrupts:
  138           minItems: 2
  139         interrupt-names:
  140           minItems: 2
  141 
  142   - if:
  143       properties:
  144         compatible:
  145           contains:
  146             enum:
  147               - qcom,tsens-v0_1
  148               - qcom,tsens-v1
  149               - qcom,tsens-v2
  150 
  151     then:
  152       required:
  153         - reg
  154 
  155 additionalProperties: false
  156 
  157 examples:
  158   - |
  159     #include <dt-bindings/interrupt-controller/arm-gic.h>
  160     // Example msm9860 based SoC (ipq8064):
  161     gcc: clock-controller {
  162 
  163            /* ... */
  164 
  165            tsens: thermal-sensor {
  166                 compatible = "qcom,ipq8064-tsens";
  167 
  168                  nvmem-cells = <&tsens_calib>, <&tsens_calib_backup>;
  169                  nvmem-cell-names = "calib", "calib_backup";
  170                  interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
  171                  interrupt-names = "uplow";
  172 
  173                  #qcom,sensors = <11>;
  174                  #thermal-sensor-cells = <1>;
  175           };
  176     };
  177 
  178   - |
  179     #include <dt-bindings/interrupt-controller/arm-gic.h>
  180     // Example 1 (legacy: for pre v1 IP):
  181     tsens1: thermal-sensor@900000 {
  182            compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1";
  183            reg = <0x4a9000 0x1000>, /* TM */
  184                  <0x4a8000 0x1000>; /* SROT */
  185 
  186            nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
  187            nvmem-cell-names = "calib", "calib_sel";
  188 
  189            interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
  190            interrupt-names = "uplow";
  191 
  192            #qcom,sensors = <5>;
  193            #thermal-sensor-cells = <1>;
  194     };
  195 
  196   - |
  197     #include <dt-bindings/interrupt-controller/arm-gic.h>
  198     // Example 2 (for any platform containing v1 of the TSENS IP):
  199     tsens2: thermal-sensor@4a9000 {
  200           compatible = "qcom,qcs404-tsens", "qcom,tsens-v1";
  201           reg = <0x004a9000 0x1000>, /* TM */
  202                 <0x004a8000 0x1000>; /* SROT */
  203 
  204           nvmem-cells = <&tsens_caldata>;
  205           nvmem-cell-names = "calib";
  206 
  207           interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>;
  208           interrupt-names = "uplow";
  209 
  210           #qcom,sensors = <10>;
  211           #thermal-sensor-cells = <1>;
  212     };
  213 
  214   - |
  215     #include <dt-bindings/interrupt-controller/arm-gic.h>
  216     // Example 3 (for any platform containing v2 of the TSENS IP):
  217     tsens3: thermal-sensor@c263000 {
  218            compatible = "qcom,sdm845-tsens", "qcom,tsens-v2";
  219            reg = <0xc263000 0x1ff>,
  220                  <0xc222000 0x1ff>;
  221 
  222            interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
  223                         <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>;
  224            interrupt-names = "uplow", "critical";
  225 
  226            #qcom,sensors = <13>;
  227            #thermal-sensor-cells = <1>;
  228     };
  229 ...

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