ti,tmp513.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 
    5 $id: http://devicetree.org/schemas/hwmon/ti,tmp513.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: TMP513/512 system monitor sensor
    9 
   10 maintainers:
   11   - Eric Tremblay <etremblay@distech-controls.com>
   12 
   13 description: |
   14   The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors
   15   that include remote sensors, a local temperature sensor, and a high-side
   16   current shunt monitor. These system monitors have the capability of measuring
   17   remote temperatures, on-chip temperatures, and system voltage/power/current
   18   consumption.
   19 
   20   Datasheets:
   21   https://www.ti.com/lit/gpn/tmp513
   22   https://www.ti.com/lit/gpn/tmp512
   23 
   24 
   25 properties:
   26   compatible:
   27     enum:
   28       - ti,tmp512
   29       - ti,tmp513
   30 
   31   reg:
   32     maxItems: 1
   33 
   34   shunt-resistor-micro-ohms:
   35     description: |
   36       If 0, the calibration process will be skiped and the current and power
   37       measurement engine will not work. Temperature and voltage measurement
   38       will continue to work. The shunt value also need to respect:
   39       rshunt <= pga-gain * 40 * 1000 * 1000.
   40       If not, it's not possible to compute a valid calibration value.
   41     default: 1000
   42 
   43   ti,pga-gain:
   44     description: |
   45       The gain value for the PGA function. This is 8, 4, 2 or 1.
   46       The PGA gain affect the shunt voltage range.
   47       The range will be equal to: pga-gain * 40mV
   48     $ref: /schemas/types.yaml#/definitions/uint32
   49     enum: [1, 2, 4, 8]
   50     default: 8
   51 
   52   ti,bus-range-microvolt:
   53     description: |
   54       This is the operating range of the bus voltage in microvolt
   55     enum: [16000000, 32000000]
   56     default: 32000000
   57 
   58   ti,nfactor:
   59     description: |
   60       Array of three(TMP513) or two(TMP512) n-Factor value for each remote
   61       temperature channel.
   62       See datasheet Table 11 for n-Factor range list and value interpretation.
   63     $ref: /schemas/types.yaml#/definitions/uint32-array
   64     minItems: 2
   65     maxItems: 3
   66     items:
   67       default: 0x00
   68       minimum: 0x00
   69       maximum: 0xFF
   70 
   71 required:
   72   - compatible
   73   - reg
   74 
   75 additionalProperties: false
   76 
   77 examples:
   78   - |
   79     i2c {
   80           #address-cells = <1>;
   81           #size-cells = <0>;
   82 
   83           tmp513@5c {
   84               compatible = "ti,tmp513";
   85               reg = <0x5C>;
   86               shunt-resistor-micro-ohms = <330000>;
   87               ti,bus-range-microvolt = <32000000>;
   88               ti,pga-gain = <8>;
   89               ti,nfactor = <0x1 0xF3 0x00>;
   90           };
   91     };

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