Re: [PATCH v3 1/2] dt-bindings: iio: imu: add fxos8700 imu binding

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On Thu, Oct 10, 2019 at 10:56:47AM -0700, Robert Jones wrote:
> This adds documentation for the Freescale FXOS8700 Inertial Measurement Unit
> device-tree bindings.
> 
> Signed-off-by: Robert Jones <rjones@xxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/iio/imu/nxp,fxos8700.yaml  | 69 ++++++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml b/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
> new file mode 100644
> index 0000000..d33a1cc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/imu/fxos8700.yaml#

Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml: $id: 
path/filename 'iio/imu/fxos8700.yaml' doesn't match actual filename

Test your binding with 'make dt_binding_check'.

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale FXOS8700 Inertial Measurement Unit
> +
> +maintainers:
> +  - Robert Jones <rjones@xxxxxxxxxxxxx>
> +
> +description: |
> +  Accelerometer and magnetometer combo device with an i2c and SPI interface.
> +  https://www.nxp.com/products/sensors/motion-sensors/6-axis/digital-motion-sensor-3d-accelerometer-2g-4g-8g-plus-3d-magnetometer:FXOS8700CQ
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nxp,fxos8700
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 2
> +
> +  interrupt-names:
> +    maxItems: 2
> +    items:
> +      - const: INT1
> +      - const: INT2

This doesn't match the example now. You need 'minItems: 1' if you need
to support 1 or 2 interrupts. If it can be either one, then you need:

items:
  enum: [ INT1, INT2 ]

> +
> +  drive-open-drain:
> +    type: boolean
> +
> +required:
> +  - compatible
> +  - reg
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        fxos8700@1e {
> +          compatible = "nxp,fxos8700";
> +          reg = <0x1e>;
> +
> +          interrupt-parent = <&gpio2>;
> +          interrupts = <7 IRQ_TYPE_EDGE_RISING>;
> +          interrupt-names = "INT1";
> +        };
> +    };
> +  - |
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        fxos8700@1e {
> +          compatible = "nxp,fxos8700";
> +          reg = <0x1e>;

I guess you could have SPI chip select # 30...

> +
> +          interrupt-parent = <&gpio2>;
> +          spi-max-frequency = <1000000>
> +          interrupts = <7 IRQ_TYPE_EDGE_RISING>;
> +          interrupt-names = "INT1";
> +        };
> +    };
> -- 
> 2.9.2
> 



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