Commit 9a6ac313 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

dt-bindings:iio:humidity:st,hts221 yaml conversion. 



Straight forward conversion of this temperature and pressure sensor binding.

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20201031134110.724233-4-jic23@kernel.org
parent 3c055f31

Documentation/devicetree/bindings/iio/humidity/hts221.txt

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* HTS221 STM humidity + temperature sensor



Required properties:

- compatible: should be "st,hts221"

- reg: i2c address of the sensor / spi cs line



Optional properties:

- drive-open-drain: the interrupt/data ready line will be configured

  as open drain, which is useful if several sensors share the same

  interrupt line. This is a boolean property.

  If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or

  IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line

  when it is not active, whereas a pull-up one is needed when interrupt

  line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING.

  Refer to pinctrl/pinctrl-bindings.txt for the property description.

- interrupts: interrupt mapping for IRQ. It should be configured with

  flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or

  IRQ_TYPE_EDGE_FALLING.



  Refer to interrupt-controller/interrupts.txt for generic interrupt

  client node bindings.



Example:



hts221@5f {

	compatible = "st,hts221";

	reg = <0x5f>;

	interrupt-parent = <&gpio0>;

	interrupts = <0 IRQ_TYPE_EDGE_RISING>;

};

Documentation/devicetree/bindings/iio/humidity/st,hts221.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/humidity/st,hts221.yaml#

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



title: HTS221 STM humidity + temperature sensor



maintainers:

  - Lorenzo Bianconi <lorenzo@kernel.org>



description: |

   Humidity and temperature sensor with I2C interface and data ready

   interrupt.



properties:

  compatible:

    const: st,hts221



  reg:

    maxItems: 1



  drive-open-drain:

    type: boolean

    description:

      The interrupt/data ready line will be configured as open drain, which

      is useful if several sensors share the same interrupt line.



  interrupts:

    maxItems: 1



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

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

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        hts221@5f {

            compatible = "st,hts221";

            reg = <0x5f>;

            interrupt-parent = <&gpio0>;

            interrupts = <0 IRQ_TYPE_EDGE_RISING>;

        };

    };

...