Re: [PATCH v13 1/2] dt-bindings: proximity: provide vcnl3020 device tree binding document

From: Ivan Mikhaylov
Date: Sat May 09 2020 - 06:38:20 EST


On Fri, 2020-05-08 at 15:51 +0100, Jonathan Cameron wrote:
> On Thu, 7 May 2020 16:25:59 +0300
> Ivan Mikhaylov <i.mikhaylov@xxxxxxxxx> wrote:
>
> > Mostly standard i2c driver with some additional led-current option
> > for vcnl3020.
> >
> > Signed-off-by: Ivan Mikhaylov <i.mikhaylov@xxxxxxxxx>
> > ---
> > .../iio/proximity/vishay,vcnl3020.yaml | 65 +++++++++++++++++++
> > 1 file changed, 65 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml
> > b/Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml
> > new file mode 100644
> > index 000000000000..408dee17cdf5
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml
> > @@ -0,0 +1,65 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/proximity/vishay,vcnl3020.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Integrated Proximity Sensor With Infrared Emitter
> > +
> > +maintainers:
> > + - Ivan Mikhaylov <i.mikhaylov@xxxxxxxxx>
> > +
> > +description: |
> > + The VCNL3020 is a fully integrated proximity sensor. Fully integrated
> > means
> > + that the infrared emitter is included in the package. It has 16-bit
> > + resolution. It includes a signal processing IC and features standard I2C
> > + communication interface. It features an interrupt function.
> > +
> > + Specifications about the devices can be found at:
> > + https://www.vishay.com/docs/84150/vcnl3020.pdf
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - vishay,vcnl3020
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + interrupts:
> > + maxItems: 1
> > +
> > + vdd-supply:
> > + description: Regulator that provides power to the sensor
> > +
> > + vddio-supply:
> > + description: Regulator that provides power to the bus
> > +
> > + vishay,led-current-microamp:
> > + description:
> > + IR LED current value with valid Range = 0 to 20d. e.g. 0 = 0 mA,
> > + 1 = 10 mA, 20 = 200 mA. LED Current is limited to 200 mA for values
> > + higher than decimal 20. The drive current for the LED used in
> > proximity
> > + sensing.
>
> This text is really confusing. Just let the enum speak for itself and leave
> text as
> something short like
>
> "The driver current for the LED used in proximity sensing. "
>
> Units and values are clear already.
>

Jonathan, just to double check, for preventing further problems with
misunderstanding, is that what you want?

vishay,led-current-microamp:
description:
The driver current for the LED used in proximity sensing.

enum: [0..200000] <- just for shortening
default: 20000

Thanks.