| 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 | $id: http://devicetree.org/schemas/iio/adc/ti,lmp92064.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Texas Instruments LMP92064 Precision Current and Voltage Sensor. |
| 8 | |
| 9 | maintainers: |
| 10 | - Leonard Göhrs <l.goehrs@pengutronix.de> |
| 11 | |
| 12 | description: | |
| 13 | The LMP92064 is a two channel ADC intended for combined voltage and current |
| 14 | measurements. |
| 15 | |
| 16 | The device contains two ADCs to allow simultaneous sampling of voltage and |
| 17 | current and thus of instantaneous power consumption. |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | enum: |
| 22 | - ti,lmp92064 |
| 23 | |
| 24 | reg: |
| 25 | maxItems: 1 |
| 26 | |
| 27 | vdd-supply: |
| 28 | description: Regulator that provides power to the main part of the chip |
| 29 | |
| 30 | vdig-supply: |
| 31 | description: | |
| 32 | Regulator that provides power to the digital I/O part of the chip |
| 33 | |
| 34 | shunt-resistor-micro-ohms: |
| 35 | description: | |
| 36 | Value of the shunt resistor (in µΩ) connected between INCP and INCN, |
| 37 | across which current is measured. Used to provide correct scaling of the |
| 38 | raw ADC measurement. |
| 39 | |
| 40 | reset-gpios: |
| 41 | maxItems: 1 |
| 42 | |
| 43 | required: |
| 44 | - compatible |
| 45 | - reg |
| 46 | - shunt-resistor-micro-ohms |
| 47 | |
| 48 | allOf: |
| 49 | - $ref: /schemas/spi/spi-peripheral-props.yaml# |
| 50 | |
| 51 | unevaluatedProperties: false |
| 52 | |
| 53 | examples: |
| 54 | - | |
| 55 | #include <dt-bindings/gpio/gpio.h> |
| 56 | spi { |
| 57 | #address-cells = <1>; |
| 58 | #size-cells = <0>; |
| 59 | |
| 60 | adc@0 { |
| 61 | compatible = "ti,lmp92064"; |
| 62 | reg = <0>; |
| 63 | vdd-supply = <&vdd>; |
| 64 | vdig-supply = <&vdd>; |
| 65 | spi-max-frequency = <20000000>; |
| 66 | shunt-resistor-micro-ohms = <15000>; |
| 67 | reset-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; |
| 68 | }; |
| 69 | }; |
| 70 | ... |