Re: [PATCH 1/2] dt-bindings: iio: accel: Add binding documentation for ADXL313

From: Lucas Stankus
Date: Mon Aug 02 2021 - 12:50:01 EST


On Sun, Aug 1, 2021 at 3:01 PM Jonathan Cameron <jic23@xxxxxxxxxx> wrote:
>
> On Sat, 31 Jul 2021 17:36:31 -0300
> Lucas Stankus <lucas.p.stankus@xxxxxxxxx> wrote:
>
> > Add device tree binding documentation for ADXL313 3-axis accelerometer.
> >
> > Signed-off-by: Lucas Stankus <lucas.p.stankus@xxxxxxxxx>
>
> Hi Lucas,
>
> A few minor requests for additions inline, so we include everything
> that is likely to be used by the driver in the longer term.
>
> > ---
> > .../bindings/iio/accel/adi,adxl313.yaml | 75 +++++++++++++++++++
> > 1 file changed, 75 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml
> > new file mode 100644
> > index 000000000000..31f11d7eaaae
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml
> > @@ -0,0 +1,75 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/accel/adi,adxl313.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Analog Devices ADXL313 3-Axis Digital Accelerometer
> > +
> > +maintainers:
> > + - Lucas Stankus <lucas.p.stankus@xxxxxxxxx>
> > +
> > +description: |
> > + Analog Devices ADXL313 3-Axis Digital Accelerometer that supports
> > + both I2C & SPI interfaces.
> > + https://www.analog.com/en/products/adxl313.html
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - adi,adxl313
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + spi-3wire: true
> > +
> > + spi-cpha: true
> > +
> > + spi-cpol: true
> > +
> > + spi-max-frequency: true
> > +
> > + interrupts:
> > + maxItems: 2
>
> As board designers have an annoying habit of wiring up the second
> interrupt only, please also provide interrupt-names so we can
> know which one is connected if it's only one.
>
> From a quick glance at the datasheet, I see this also has two powersupplies.
> Please include
> vddio-supply
> vs-supply - annoyingly the s just stands for supply, but v-supply seems a bit to minimal.
>

Thanks for the feedback, I'll change it for the v2!

> > +
> > +required:
> > + - compatible
> > + - reg
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/gpio/gpio.h>
> > + #include <dt-bindings/interrupt-controller/irq.h>
> > + i2c0 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + /* Example for a I2C device node */
> > + accelerometer@53 {
> > + compatible = "adi,adxl313";
> > + reg = <0x53>;
> > + interrupt-parent = <&gpio0>;
> > + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > + };
> > + - |
> > + #include <dt-bindings/gpio/gpio.h>
> > + #include <dt-bindings/interrupt-controller/irq.h>
> > + spi {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + /* Example for a SPI device node */
> > + accelerometer@0 {
> > + compatible = "adi,adxl313";
> > + reg = <0>;
> > + spi-max-frequency = <5000000>;
> > + spi-cpol;
> > + spi-cpha;
> > + interrupt-parent = <&gpio0>;
> > + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > + };
>