Commit b52e2f19 authored by Matti Vaittinen's avatar Matti Vaittinen Committed by Jonathan Cameron
Browse files

dt-bindings: iio: Add KX022A accelerometer 



KX022A is a 3-axis Accelerometer from ROHM/Kionix. The sensor features
include variable ODRs, I2C and SPI control, FIFO/LIFO with watermark IRQ,
tap/motion detection, wake-up & back-to-sleep events, four acceleration
ranges (2, 4, 8 and 16g) and probably some other cool features.

Add the basic device tree description for the accelerometer. Only basic
accelerometer features are considered as of now - new properties may or
may not be needed in the future when rest of the features are supported.

Signed-off-by: default avatarMatti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/06f8e1ab29d02ed216db10091a269df4b6abad9a.1666614295.git.mazziesaccount@gmail.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent f7626504

Documentation/devicetree/bindings/iio/accel/kionix,kx022a.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/accel/kionix,kx022a.yaml#

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



title: ROHM/Kionix KX022A Accelerometer



maintainers:

  - Matti Vaittinen <mazziesaccount@gmail.com>



description: |

  KX022A is a 3-axis accelerometer supporting +/- 2G, 4G, 8G and 16G ranges,

  output data-rates from 0.78Hz to 1600Hz and a hardware-fifo buffering.

  KX022A can be accessed either via I2C or SPI.



properties:

  compatible:

    const: kionix,kx022a



  reg:

    maxItems: 1



  interrupts:

    minItems: 1

    maxItems: 2



  interrupt-names:

    minItems: 1

    items:

      - enum: [INT1, INT2]

      - const: INT2



  vdd-supply: true

  io-vdd-supply: true



  mount-matrix:

    description: |

      an optional 3x3 mounting rotation matrix.



required:

  - compatible

  - reg

  - interrupts



additionalProperties: false



examples:

  - |

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

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;

        accel@1f {

            compatible = "kionix,kx022a";

            reg = <0x1f>;



            interrupt-parent = <&gpio1>;

            interrupts = <29 IRQ_TYPE_LEVEL_LOW>;

            interrupt-names = "INT1";



            io-vdd-supply = <&iovdd>;

            vdd-supply = <&vdd>;

        };

    };