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    Subject[RFC PATCH 3/5] dt-bindings: iio: Add KX022A accelerometer
    KX022A is a 3-axis Accelerometer from ROHM/Kionix. The senor 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 fatures.

    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 if rest of the features are to be supported.

    Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
    ---
    .../bindings/iio/accel/kionix,kx022a.yaml | 58 +++++++++++++++++++
    1 file changed, 58 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/iio/accel/kionix,kx022a.yaml

    diff --git a/Documentation/devicetree/bindings/iio/accel/kionix,kx022a.yaml b/Documentation/devicetree/bindings/iio/accel/kionix,kx022a.yaml
    new file mode 100644
    index 000000000000..62a0c7991a62
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/iio/accel/kionix,kx022a.yaml
    @@ -0,0 +1,58 @@
    +# 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 bindings
    +
    +maintainers:
    + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.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: kionix,kx022a
    +
    + reg:
    + description:
    + I2C slave address or SPI chip-select.
    + maxItems: 1
    +
    + interrupts:
    + maxItems: 1
    +
    + 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>;
    +
    + io_vdd-supply = <&iovdd>;
    + vdd-supply = <&vdd>;
    + };
    + };
    --
    2.37.1

    --
    Matti Vaittinen, Linux device drivers
    ROHM Semiconductors, Finland SWDC
    Kiviharjunlenkki 1E
    90220 OULU
    FINLAND

    ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
    Simon says - in Latin please.
    ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
    Thanks to Simon Glass for the translation =]
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