| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/iio/adc/microchip,pac1934.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Microchip PAC1934 Power Monitors with Accumulator |
| |
| maintainers: |
| - Marius Cristea <marius.cristea@microchip.com> |
| |
| description: | |
| This device is part of the Microchip family of Power Monitors with |
| Accumulator. |
| The datasheet for PAC1931, PAC1932, PAC1933 and PAC1934 can be found here: |
| https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/PAC1931-Family-Data-Sheet-DS20005850E.pdf |
| |
| properties: |
| compatible: |
| enum: |
| - microchip,pac1931 |
| - microchip,pac1932 |
| - microchip,pac1933 |
| - microchip,pac1934 |
| |
| reg: |
| maxItems: 1 |
| |
| "#address-cells": |
| const: 1 |
| |
| "#size-cells": |
| const: 0 |
| |
| interrupts: |
| maxItems: 1 |
| |
| slow-io-gpios: |
| description: |
| A GPIO used to trigger a change is sampling rate (lowering the chip power |
| consumption). If configured in SLOW mode, if this pin is forced high, |
| sampling rate is forced to eight samples/second. When it is forced low, |
| the sampling rate is 1024 samples/second unless a different sample rate |
| has been programmed. |
| |
| patternProperties: |
| "^channel@[1-4]+$": |
| type: object |
| $ref: adc.yaml |
| description: |
| Represents the external channels which are connected to the ADC. |
| |
| properties: |
| reg: |
| items: |
| minimum: 1 |
| maximum: 4 |
| |
| shunt-resistor-micro-ohms: |
| description: |
| Value in micro Ohms of the shunt resistor connected between |
| the SENSE+ and SENSE- inputs, across which the current is measured. |
| Value is needed to compute the scaling of the measured current. |
| |
| required: |
| - reg |
| - shunt-resistor-micro-ohms |
| |
| unevaluatedProperties: false |
| |
| required: |
| - compatible |
| - reg |
| - "#address-cells" |
| - "#size-cells" |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| power-monitor@10 { |
| compatible = "microchip,pac1934"; |
| reg = <0x10>; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| channel@1 { |
| reg = <0x1>; |
| shunt-resistor-micro-ohms = <24900000>; |
| label = "CPU"; |
| }; |
| |
| channel@2 { |
| reg = <0x2>; |
| shunt-resistor-micro-ohms = <49900000>; |
| label = "GPU"; |
| }; |
| |
| channel@3 { |
| reg = <0x3>; |
| shunt-resistor-micro-ohms = <75000000>; |
| label = "MEM"; |
| bipolar; |
| }; |
| |
| channel@4 { |
| reg = <0x4>; |
| shunt-resistor-micro-ohms = <100000000>; |
| label = "NET"; |
| bipolar; |
| }; |
| }; |
| }; |
| |
| ... |
