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SubjectRe: [PATCH v3] dt-bindings: iio: accel: add binding documentation for ADIS16240
On Thu, Oct 31, 2019 at 09:03:01PM -0300, Rodrigo Carvalho wrote:
> This patch add device tree binding documentation for ADIS16240.
>
> Signed-off-by: Rodrigo Ribeiro Carvalho <rodrigorsdc@gmail.com>
> ---
> V3:
> - Remove spi-cpol and spi-cpha field. They don't seem necessary

Not necessary to document or use? The latter requires the former.

If your device only supports one timing mode, then you don't need them
because it should be implied and the driver can just tell the SPI
subsystem what mode it requires. If the device can support multiple
timing modes, then you should document that you are using the
properties.

> .../bindings/iio/accel/adi,adis16240.yaml | 51 +++++++++++++++++++
> 1 file changed, 51 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
> new file mode 100644
> index 000000000000..9a4cd12c4818
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/accel/adi,adis16240.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ADIS16240 Programmable Impact Sensor and Recorder driver
> +
> +maintainers:
> + - Alexandru Ardelean <alexandru.ardelean@analog.com>
> +
> +description: |
> + ADIS16240 Programmable Impact Sensor and Recorder driver that supports
> + SPI interface.
> + https://www.analog.com/en/products/adis16240.html
> +
> +properties:
> + compatible:
> + enum:
> + - adi,adis16240
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + spi0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /* Example for a SPI device node */
> + accelerometer@0 {
> + compatible = "adi,adis16240";
> + reg = <0>;
> + spi-max-frequency = <2500000>;
> + spi-cpol;
> + spi-cpha;
> + interrupt-parent = <&gpio0>;
> + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> + };
> + };
> --
> 2.23.0
>

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