diff options
| author | Marcelo Schmitt <marcelo.schmitt@analog.com> | 2023-12-19 17:32:04 -0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-12-26 15:43:10 +0000 |
| commit | 6875b85729f82614a8127792ad0b04c17fb56487 (patch) | |
| tree | 9f9d121a568cf92c042322757cf37f3dcfa2098f | |
| parent | 276ceecaa2e8bd0b7b0437e3556fccca991a04f7 (diff) | |
dt-bindings: iio: Add AD7091R-8
Add device tree documentation for AD7091R-8.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Link: https://lore.kernel.org/r/632eb34801ae54feda453b6a65d60fc8ac2891fd.1703013352.git.marcelo.schmitt1@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml | 82 |
1 files changed, 78 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml index ce7ba634643c..ddec9747436c 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml @@ -4,36 +4,92 @@ $id: http://devicetree.org/schemas/iio/adc/adi,ad7091r5.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Analog Devices AD7091R5 4-Channel 12-Bit ADC +title: Analog Devices AD7091R-2/-4/-5/-8 Multi-Channel 12-Bit ADCs maintainers: - Michael Hennerich <michael.hennerich@analog.com> + - Marcelo Schmitt <marcelo.schmitt@analog.com> description: | - Analog Devices AD7091R5 4-Channel 12-Bit ADC + Analog Devices AD7091R5 4-Channel 12-Bit ADC supporting I2C interface https://www.analog.com/media/en/technical-documentation/data-sheets/ad7091r-5.pdf + Analog Devices AD7091R-2/AD7091R-4/AD7091R-8 2-/4-/8-Channel 12-Bit ADCs + supporting SPI interface + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7091R-2_7091R-4_7091R-8.pdf properties: compatible: enum: + - adi,ad7091r2 + - adi,ad7091r4 - adi,ad7091r5 + - adi,ad7091r8 reg: maxItems: 1 + vdd-supply: + description: + Provide VDD power to the sensor (VDD range is from 2.7V to 5.25V). + + vdrive-supply: + description: + Determines the voltage level at which the interface logic will operate. + The V_drive voltage range is from 1.8V to 5.25V and must not exceed VDD by + more than 0.3V. + vref-supply: description: Phandle to the vref power supply - interrupts: + convst-gpios: + description: + GPIO connected to the CONVST pin. + This logic input is used to initiate conversions on the analog + input channels. maxItems: 1 + reset-gpios: + maxItems: 1 + + interrupts: + description: + Interrupt for signaling when conversion results exceed the high limit for + ADC readings or fall below the low limit for them. Interrupt source must + be attached to ALERT/BUSY/GPO0 pin. + maxItems: 1 required: - compatible - reg -additionalProperties: false +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + + # AD7091R-2 does not have ALERT/BUSY/GPO pin + - if: + properties: + compatible: + contains: + enum: + - adi,ad7091r2 + then: + properties: + interrupts: false + + - if: + properties: + compatible: + contains: + enum: + - adi,ad7091r2 + - adi,ad7091r4 + - adi,ad7091r8 + then: + required: + - convst-gpios + +unevaluatedProperties: false examples: - | @@ -51,4 +107,22 @@ examples: interrupt-parent = <&gpio>; }; }; + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7091r8"; + reg = <0x0>; + spi-max-frequency = <1000000>; + vref-supply = <&adc_vref>; + convst-gpios = <&gpio 25 GPIO_ACTIVE_LOW>; + reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>; + interrupts = <22 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpio>; + }; + }; ... |