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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
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# SPDX-License-Identifier: GPL-2.0

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/iio/pressure/bmp085.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: BMP085/BMP180/BMP280/BME280/BMP380 pressure iio sensors

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maintainers:

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  - Andreas Klinger <ak@it-klinger.de>

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description: |

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  Pressure, temperature and humidity iio sensors with i2c and spi interfaces

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  Specifications about the sensor can be found at:

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    https://www.bosch-sensortec.com/bst/products/all_products/bmp180

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    https://www.bosch-sensortec.com/bst/products/all_products/bmp280

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    https://www.bosch-sensortec.com/bst/products/all_products/bme280

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    https://www.bosch-sensortec.com/bst/products/all_products/bmp380

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    https://www.bosch-sensortec.com/bst/products/all_products/bmp580

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properties:

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  compatible:

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    enum:

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      - bosch,bmp085

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      - bosch,bmp180

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      - bosch,bmp280

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      - bosch,bme280

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      - bosch,bmp380

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      - bosch,bmp580

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  reg:

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    maxItems: 1

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  vddd-supply:

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    description:

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      digital voltage regulator (see regulator/regulator.txt)

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  vdda-supply:

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    description:

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      analog voltage regulator (see regulator/regulator.txt)

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  reset-gpios:

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    description:

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      A GPIO line handling reset of the sensor. As the line is active low,

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      it should be marked GPIO_ACTIVE_LOW (see gpio/gpio.txt)

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    maxItems: 1

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  interrupts:

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    maxItems: 1

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  drive-open-drain:

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    description:

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      set if the interrupt pin should be configured as open drain.

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      If not set, defaults to push-pull configuration.

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    type: boolean

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  spi-max-frequency:

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    maximum: 10000000

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required:

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  - compatible

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  - vddd-supply

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  - vdda-supply

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allOf:

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  - $ref: /schemas/spi/spi-peripheral-props.yaml#

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  - if:

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      properties:

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        compatible:

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          not:

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            contains:

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              enum:

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                - bosch,bmp085

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                - bosch,bmp380

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                - bosch,bmp580

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    then:

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      properties:

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        interrupts: false

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - bosch,bmp085

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              - bosch,bmp180

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    then:

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      properties:

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        spi-max-frequency: false

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/gpio/gpio.h>

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    #include <dt-bindings/interrupt-controller/irq.h>

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    i2c {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        pressure@77 {

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            compatible = "bosch,bmp085";

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            reg = <0x77>;

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            interrupt-parent = <&gpio0>;

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            interrupts = <25 IRQ_TYPE_EDGE_RISING>;

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            reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;

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            vddd-supply = <&foo>;

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            vdda-supply = <&bar>;

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        };

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    };

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  - |

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    # include <dt-bindings/gpio/gpio.h>

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    # include <dt-bindings/interrupt-controller/irq.h>

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    spi {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        pressure@0 {

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            compatible = "bosch,bmp280";

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            reg = <0>;

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            spi-max-frequency = <10000000>;

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            reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;

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            vddd-supply = <&foo>;

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            vdda-supply = <&bar>;

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        };

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    };

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