On Thu, Oct 05, 2023 at 08:49:08PM +0200, Duje Mihanović wrote: > Add the dt binding for the Kinetic KTD2801 backlight driver. > > Signed-off-by: Duje Mihanović <duje.mihanovic@xxxxxxxx> > --- > .../bindings/leds/backlight/kinetic,ktd2801.yaml | 46 ++++++++++++++++++++++ > 1 file changed, 46 insertions(+) > > diff --git a/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml > new file mode 100644 > index 000000000000..970d54bac18e > --- /dev/null > +++ b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml > @@ -0,0 +1,46 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd2801.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Kinetic Technologies KTD2801 one-wire backlight > + > +maintainers: > + - Duje Mihanović <duje.mihanovic@xxxxxxxx> > + > +description: | > + The Kinetic Technologies KTD2801 is a LED backlight driver controlled > + by a single GPIO line. The driver can be controlled with a PWM signal > + or by pulsing the GPIO line to set the backlight level. This is called > + "ExpressWire". > + > +allOf: > + - $ref: common.yaml# > + > +properties: > + compatible: > + const: kinetic,ktd2801 > + > + enable-gpios: > + maxItems: 1 Why "enable"? This is the line we are going to us to bitbang the ExpressWire protocol. Doesn't that make it a control or data pin? Daniel.
