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| author | Leonard Göhrs <l.goehrs@pengutronix.de> | 2022-11-28 16:35:02 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-12-28 20:19:44 +0300 |
| commit | 51f3e9696c8e784f74a4c1f9fe2e9d5ff9641a8d (patch) | |
| tree | 62c05f8a2335abeb6ed2532a4de158a4ba07543c /Documentation/devicetree/bindings/iio | |
| parent | c9d8b868f4a37bf2589b0148f366cc753735ead7 (diff) | |
| download | linux-51f3e9696c8e784f74a4c1f9fe2e9d5ff9641a8d.tar.xz | |
dt-bindings: iio: adc: add TI LMP92064 controller
Add binding documentation for the TI LMP92064 dual channel SPI ADC.
Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221128133503.1355898-1-l.goehrs@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation/devicetree/bindings/iio')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml b/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml new file mode 100644 index 000000000000..5fb65bf7749d --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,lmp92064.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments LMP92064 Precision Current and Voltage Sensor. + +maintainers: + - Leonard Göhrs <l.goehrs@pengutronix.de> + +description: | + The LMP92064 is a two channel ADC intended for combined voltage and current + measurements. + + The device contains two ADCs to allow simultaneous sampling of voltage and + current and thus of instantaneous power consumption. + +properties: + compatible: + enum: + - ti,lmp92064 + + reg: + maxItems: 1 + + vdd-supply: + description: Regulator that provides power to the main part of the chip + + vdig-supply: + description: | + Regulator that provides power to the digital I/O part of the chip + + shunt-resistor-micro-ohms: + description: | + Value of the shunt resistor (in µΩ) connected between INCP and INCN, + across which current is measured. Used to provide correct scaling of the + raw ADC measurement. + + reset-gpios: + maxItems: 1 + +required: + - compatible + - reg + - shunt-resistor-micro-ohms + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "ti,lmp92064"; + reg = <0>; + vdd-supply = <&vdd>; + vdig-supply = <&vdd>; + spi-max-frequency = <20000000>; + shunt-resistor-micro-ohms = <15000>; + reset-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; + }; + }; +... |