| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 skipped 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 | |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 75 | allOf: |
| 76 | - $ref: hwmon-common.yaml# |
| 77 | |
| 78 | unevaluatedProperties: false |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 79 | |
| 80 | examples: |
| 81 | - | |
| 82 | i2c { |
| 83 | #address-cells = <1>; |
| 84 | #size-cells = <0>; |
| 85 | |
| 86 | tmp513@5c { |
| 87 | compatible = "ti,tmp513"; |
| 88 | reg = <0x5c>; |
| 89 | shunt-resistor-micro-ohms = <330000>; |
| 90 | ti,bus-range-microvolt = <32000000>; |
| 91 | ti,pga-gain = <8>; |
| 92 | ti,nfactor = <0x1 0xf3 0x00>; |
| 93 | }; |
| 94 | }; |